WO2018185027A1 - Mechanised welding system comprising a carriage and a welding module mounted removably on the chassis - Google Patents
Mechanised welding system comprising a carriage and a welding module mounted removably on the chassis Download PDFInfo
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- WO2018185027A1 WO2018185027A1 PCT/EP2018/058293 EP2018058293W WO2018185027A1 WO 2018185027 A1 WO2018185027 A1 WO 2018185027A1 EP 2018058293 W EP2018058293 W EP 2018058293W WO 2018185027 A1 WO2018185027 A1 WO 2018185027A1
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- WIPO (PCT)
- Prior art keywords
- welding
- carriage
- module
- mechanized
- torch
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0276—Carriages for supporting the welding or cutting element for working on or in tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0282—Carriages forming part of a welding unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Definitions
- the subject of the present invention is a mechanized portable welding system, preferably for an arc welding particularly adaptable for circumferential welds on tubes whose outer diameter can range from 203.2 mm (8.625 ”) to 1219.2 mm (48.2 mm). "), even within and beyond this range of diameters.
- MFCAW flux core flux-cored solder modules on the market are not portable. Indeed, they are mounted on a ring or tread which is clamped around tubes to be welded, with spacers whose height is variable +/- 30mm, to which is added the height of the welding modules. These sets have a radial size of the system around the tube of the order of 250mm and more. It is for example known such mechanized welding modules, for example documents US-4841 123, US2002-006021 1, US6617548 or WO204-045797. The document US-2015-0321280 describes a similar system in which a welding module is reversibly mounted on a carriage capable of rotating around a tube.
- This type of equipment requires a rolling ring specific to each weld and a radial space of +/- 250mm clear of any obstacle around said welded tubes to allow existing welding modules to pass and perform the welding 360 °.
- the invention solves the above problems by proposing an automatic welding system achieving optimum compactness, while offering a welding module optimizing the deposition parameters of a welding torch, with respect to a speed of welding. advancing said torch, to maximize the deposition and thus minimize the cycle time by welding.
- a mechanized welding system according to the invention can thus be implemented by less qualified operators, while offering a cycle time and quality final welds.
- the invention relates to a mechanized welding system comprising a plating means adapted to be mounted on a workpiece, a movable carriage such that the carriage comprises a drive system cooperating with the plating means for allow a movement of the carriage relative to the workpiece, and a welding module, characterized in that the welding module is removably mounted on the carriage, the welding module comprising a welding torch and a control motor of the movement of the torch.
- the invention also relates to a mechanized welding system comprising a plating means provided with a chain adapted to be mounted on a workpiece to be welded, a movable carriage such that the carriage comprises a drive system provided with at least one toothed wheel cooperating with the chain to allow movement of the carriage relative to the workpiece, and a welding module removably mounted on the carriage, the welding module comprising a welding torch and a control motor of the movement of the torch, the carriage comprising a frame supporting wheels, characterized in that the frame comprises a protuberance from which exceeds a means of setting tension of the chain around the workpiece, the protuberance defining a circumference to deter a position of insertion of the welding module on the frame.
- the welding module can be at a determined position relative to the tube, which is directly derived from a position of the chain relative to the tube, and in particular a position of the chain relative to an end chamfer of the tube.
- the position of the chain relative to the end chamfer can in particular be determined and calibrated, before the introduction of the welding module on the chassis.
- the torch movement control motor may comprise at least one of a torch oscillation means, a means for adjusting the torch height relative to the workpiece, and axial adjustment means along an axis perpendicular to said height of the torch.
- the axial adjustment means allows adjustment along a tangent to a circular path of the carriage. It can include these three means, these means can also be called positioning engines. The welding torch and its associated positioning motors can therefore be made removable from the carriage.
- the system may comprise a remote control and a control and command unit connected to the remote control, such that the control and control unit controls the motor for controlling the movement of the torch and the drive system of the carriage.
- the control and command unit can also slave a welding generator connected to the welding module.
- this control and command unit can be embedded in the welding module.
- this control and control unit can be removable from the carriage.
- the control and control unit could also be connected to the welding module, without being embedded in the welding module.
- the welding module may comprise a displacement motor adapted to cooperate with the drive system. carriage. In such a case, this displacement motor can be controlled by the control unit.
- the motor can be mechanically coupled with a drive shaft of the drive system, when the welding module is mounted on the carriage.
- the mounting of the welding module on the carriage is simplified and does not require to identify a precise relative position of the displacement motor relative to the drive system.
- the system may comprise a disengaging means to allow free rolling of the carriage relative to the plating means, independently of the welding module.
- the carriage can be moved along the veneer member at a speed greater than the speed obtained by mating with the displacement motor.
- the carriage may comprise said disengaging means to allow disengagement by displacement of the transmission shaft relative to the displacement motor, without the need to detach the welding module of the carriage.
- the welding module comprises a base which can be provided with an opening whose periphery is complementary to that of the protuberance. This opening makes it possible to index in position, without risk of error, the welding module on the carriage.
- This configuration also has the advantage of allowing adjustment of the tensioning means of the chain protruding from the protuberance, even when the welding module is in place on the carriage
- the plating means is a chain, the carriage then comprising at least one toothed wheel and a tensioning means of the chain around the workpiece to be welded.
- the chain may be composed of links and able to form a homogeneous ring and reclosable on the workpiece.
- the chain allows a movement of more than 360 ° of the carriage along this ring, and therefore around the workpiece.
- the system according to the invention can be adapted to tubular parts of different diameters, and to this end the carriage can comprise wheels in contact with the workpiece to be welded, these wheels can be mounted in an adjustable manner on a frame the carriage to allow adjustment of the distance between the frame and the workpiece.
- the welding module can comprise a coil support for the supply of wire of the welding head, such that the coil support is hinged to adapt its bulk. radial depending on the parts to be welded.
- the carriage may include a positioning means and a locking latch adapted to cooperate with the welding module to ensure a connection of the welding module on the carriage.
- the carriage may be devoid of a welding torch.
- the plating means and the carriage may be devoid of all the umbilicals necessary for the operation of a welding torch.
- the mechanized welding system according to the invention can be flexible, so that the same welding module can be compatible with different carriages, these carriages being themselves compatible with different plating means in order to perform welds on different shaped parts
- the invention also relates to a kit comprising the system and to the surplus a template for assisting the positioning of the plating means relative to a chamfer of a workpiece.
- kits comprising a mechanized welding system according to the invention may also include means for immobilizing the drive system relative to the plating means to enable the placing of the plating means on the workpiece to be welded.
- the subject of the invention is also a welding method implemented by means of a mechanized welding system according to the invention in which the plating means surrounds the circumference of a workpiece to be welded, and in which the welding module travels more than 360 °.
- FIG. 1 illustrates the welding positions that can be achieved with a system according to the invention
- FIG. 2 schematically illustrates, in a cross-sectional view relative to a longitudinal axis of a tube, an assembly according to the invention mounted around a tube to be welded,
- FIG. 3 shows a longitudinal sectional view AA of FIG. 2, relative to a longitudinal axis of a tube to be welded
- FIG. 4 represents a cross-sectional view of a weld bead that can be made with a system according to the invention
- FIGS. 5a and 5b show a detailed view of a welding torch of a system according to the invention in different positions
- FIG. 6 represents a detailed view from above of a plating means of a system according to the invention, the plating means being produced according to a first embodiment in the form of a chain,
- FIG. 7 represents a sectional view of a carriage of a system according to the invention
- FIG. 8 represents a perspective view from above of a carriage of a system according to the invention
- FIG. 9 represents a perspective view from above of a welding module of a system according to the invention, in particular compatible with the carriage of FIG. 10;
- FIG. 10 represents a perspective view from above of a welding module according to FIG. 9 assembled with the carriage of FIG. 8
- FIG. 11 represents a cross-sectional view of the welding module according to FIG. 9 associated with the carriage according to FIG. 8 in cooperation with a chain-type plating member, on the outer periphery of a tube, thus forming a system according to FIG. the invention.
- the cross-sectional plane of Figure 11 is orthogonal to the longitudinal section plane of Figure 3.
- Figure 12 schematically shows a system according to the invention.
- the purpose of the system according to the invention is to allow orbital welding from the outside of a circumferentially welded zone, for example so as to form an annular weld bead around a tube, or at the junction between two metal tubes, preferably of substantially circular cross section.
- the invention makes it possible to produce such annular weld beads, whether the tube is in a horizontal position called “5G” or a vertical position called “2G” and inclined, for example at 45 °, called “6G", as represented on the Figure 1 .
- a welding module generally starts from a starting point located vertically, below the zone to be welded, and carries out a first half weld bead, going up on one side of the circumference.
- the solder module is then lowered back to the starting point, then forming a second half-cord and so on to form a complete bead covering the entire circumference.
- the two half cords can cover more than 180 °, to provide overlap areas between the two half-cords.
- substantially circular means perfectly circular sections, and also such sections having defects of circularity, or even having a form of ovality.
- Figure 2 shows a circular section of a steel tube 1.
- the outer diameter OD of this tube 1 can range from 203.2 mm (8.625 ”) to 1219.2 mm (48") or more.
- a mechanized welding system 2 according to the invention is shown in Figure 2, at an apex of the circular section of the tube.
- the welding system 2 comprises a plating means 3, here in the form of a metal chain, encircling the tube.
- the chain 3 is pressed on the outer circumference of the tube over more than 80% of its circumference.
- the welding system further comprises a carriage 4 and a welding module 5 removably mounted on the carriage.
- the carriage 4 comprises wheels 6 for rolling on the outer periphery of the tube, preferably on either side of the chain 3.
- the carriage 4 comprises a frame 7 supporting the wheels 6.
- the carriage 4 comprises two pairs of wheels 6 to allow a balance position of the frame 7 at the apex of the tube.
- the welding module 5 comprises a welding torch 8. Only the welding module 5 comprises a welding trench.
- the truck does not have a welding torch.
- the welding torch 8 makes it possible to aim the outer periphery of the tube, in a remote zone relative to the zone which is situated under the frame 7.
- the chain 3 is arranged at a distance from a chamfer 9 of the tube, so that the wheels 6 are also at non-zero longitudinal distance from the chamfer 9, relative to a longitudinal axis X of the tube 1.
- the welding torch 8 is presented in line with the chamfer 9.
- the chamfer 9 is for example formed at a longitudinal end of the tube 1, and has a particular profile, so that when a homologous profile 10 of a second tube 1 1 compatible with the tube 1 is presented opposite this chamfer 9, the welding torch 8 can be implemented to fill the volume defined by these two chamfers 9 and 10, and thus create a weld bead.
- Figure 4 shows the welding torch in an inclined position.
- the welding torch 8 is preferably an arc welding torch, for example with flux-cored feed material (mFCAW).
- the torch 8 is steerable along a reference axis Y relative to a normal N to the longitudinal axis X, by means of an oscillation means 60, visible in FIGS. 9 and 10.
- the oscillation means 60 allow an oscillation according to the arrows O of Figure 4, relative to the normal N.
- the oscillation means 60 allows the adjustment of this inclination in the plane P1.
- the torch 8 In a first plane P1 passing through said longitudinal axis X and the normal N, the torch 8 preferably performs a pendulum and programmable movement relative to said reference axis Y in the plane P1.
- the reference axis Y of the pendulum movement can itself be adjusted.
- the torch In a second plane P2 perpendicular to the first plane P1, the torch can be inclined to create a forward / backward torch flow.
- the weld seams made with a torch 8 of a system according to the invention are deposited on a root 70 which is obtained by another method.
- the root 70 can be made manually, before setting up the mechanized welding system according to the invention.
- the root 70 can also be made with a welding system according to the invention.
- the location of the torch 8 can also be adjusted radially and longitudinally relative to the frame 7.
- the carriage 4 comprises for this purpose a radial adjustment means 12 and a longitudinal adjustment means. 13 of the location of the welding torch.
- the implementation of the radial adjustment means 12 makes it possible to perform welds in a mode called "Arc Height Control System or" Scharc Mode "Figure 5a.
- the Scharc Mode weld aims at a permanent adjustment of the torch height relative to the surface to be welded in order to adjust the electrical resistance of the wire. welded.
- this adjustment of the electrical resistance of the welded wire can be obtained by adjusting the speed of advance of the wire 14 to be welded in the torch, as is the case in FIG. 5b, the so-called "VScharc Mode” mode, as regards An Arc Height Control System by Arc Height Management by Thread Speed Control.
- the oscillation means 60, and the respectively radial 12 and axial adjustment means 13 are positioning motors of the torch 8.
- the system according to the invention can also be implemented according to a manual mode determined by the operator .
- the wire 14 to be welded is packaged in a coil and disposed in a cassette 15 from which it is unwound.
- the cassette 15 is located on the welding module 5.
- the cassette 15 is connected by a hinge 16 to a base 17 of the welding module 5.
- the hinge 16 limits the radial size of the welding system around the tube, adapting its angular position so as to be placed in a plane substantially parallel to a tangent of the outer periphery of the tube around which the system according to the invention is mounted.
- the wire 14 may be a cored wire (mFCAW).
- the purpose of the welding system according to the invention is to produce an annular welding bead.
- the welding module is moved orbitally around the tube.
- the chain 3 is mounted circumferentially around the tube. Chain 3 has a perimeter greater than the perimeter of the tube section on which it is mounted. A portion of the chain 3 is shown in Figure 6.
- the chain 3 is formed of links 18 connected in pairs. To enlarge the perimeter of the chain, it is possible to add additional links 19 by means of a catch 20 of the screw-nut type, which makes it possible to increase the size of the chain, without altering the homogeneity of the succession. links.
- the chain comprises in particular lateral links 21 and central links 22.
- the perimeter of the chain 3 is determined according to the tube diameter on which it is mounted. This perimeter allows the establishment of the carriage 5, the carriage 5 comprising means for tensioning the chain 3.
- the carriage 5 comprises three toothed wheels respectively 22, 23 and 24, to engage with the links of the chain and thus allow the controlled movement of the carriage along the chain, as shown in Figure 1 1.
- the toothed wheels 22, 23 and 24 are free to rotate about axes of rotation parallel to each other, and also parallel to the axes of rotation of the wheels 6.
- the toothed wheels 22 and 24 are engaged with the outer periphery of the chain 3, while the toothed wheel 23 is engaged with the inner periphery of the chain.
- the toothed wheel 23 may be called the inner wheel, it is arranged between the toothed wheels 22 and 24.
- the carriage comprises means for adjusting the height of the inner wheel 23 in order to adjust the tensioning of the chain around the tube.
- the adjustment means 25 is operated by manual screwing to allow a radial displacement under a spring tension of the inner wheel 23 relative to the outer surface of the tube, and thus an adjustment of its distance from the wheels 22 and 24 .
- an operator uses a template adapted to engage with the chamfer 9.
- the template is used to index the positioning of the wheels 6 and or the chain relative to the chamfer 9, so that the torch can be moved a distance of up to 35 mm, on either side of the joint plane.
- the tensioning of the chain is such that it makes it possible to immobilize the carriage on the chain.
- the carriage is preferably disposed in a position where it does not exert tension on the chain.
- the cart can be immobilized by holding means to avoid changing the position of the chain relative to the tube.
- the means for holding in position may be magnets.
- the chain forms a homogeneous perimeter, such that the toothed wheels can roll over the entire chain, including at the hook or hook 20.
- the chain allows the carriage to traverse the outer periphery of the tube in its entirety, even run a path of more than 360 ° around the tube.
- the carriage comprises a drive system for driving in rotation one of the gears 22 or 24, and thus allow movement of the carriage along the chain, the chain remaining substantially fixed around the tube.
- the part of the chain which is engaged in the gears comes off the periphery of the tube, as the carriage progresses around said tube.
- the drive system comprises a transmission shaft 31, a gear wheel protrudes radially outwardly of the frame 7, when the latter is mounted around a tube.
- the welding module 5 comprises a displacement motor 32, Figure 1 1.
- the welding module is removably mounted on the frame.
- the chassis comprises reversible fixing means 33, such as latches for cooperating with a complementary relief of the welding module, for example a protrusion of the base 17.
- the frame comprises two latches such as 33.
- the frame 7 comprises a protrusion 34, from which exceeds the adjustment means 25.
- This protrusion 34 defines a periphery for detracting the insertion position of the welding module on the frame, the base 17 having an opening 35 whose circumference is complementary to that of the protuberance 34.
- the opening has for example a cross shape, for example in the form of a polyhedron having at least 12 sides.
- the opening 35 is no symmetrical so as to tolerate only a single insertion position relative to the protuberance 34.
- the periphery of the protuberance 34 is of section covering a surface slightly smaller than the surface defined by the opening 35 to allow implementation without friction.
- the welding module is set up by translation on the chassis of the carriage.
- the toothed wheel of the transmission shaft 31 has an axis of rotation perpendicular to the translation axis for docking the welding module.
- the displacement motor 32 comprises a pinion gear associated with a pinion gear tangentially docking the toothed wheel. Whatever the position of the displacement motor gear during the descent by translation of the welding module on the carriage, the cooperation of the displacement motor 32 with the transmission shaft 31 is obtained without preliminary indexing of the respective positions of the the toothed wheel of the transmission shaft 31 and the toothed gear motor 32.
- the welding module is shown mounted on the carriage in Figure 12.
- the protrusion 34 forms the positioning means and is defined so as to nevertheless limit the radial size of the system according to the invention.
- the system by its radial compactness allows the carriage equipped with the welding module to pass between two tubes, for example 150 mm apart, or 200 mm as shown in Figure 13.
- the radial compactness of the wheels 6 at the top of the protrusion 34, and thanks to the articulation of the cassette 15 allow use of the welding torch of a system according to the invention including in places where the maneuvers are not easy for an operator.
- the wheels 6 are adjustable in spacing and height relative to the frame.
- the carriage comprises a disengaging means 36 manual displacement motor 32.
- the disengaging means 36 is here a lever operable by an operator and which moves the transmission shaft 31 to disengage its toothed gear of the toothed gear motor
- the operator can manually move the carriage along the chain regardless of the speed of the displacement motor. This movement can in particular be done at a speed faster than the displacement motor.
- Such an arrangement is particularly useful when there is no welding operation in progress.
- the welding module is connected, FIG. 14, to a power generator G by a cable 37, to a source of inert gas 38 via a pipe 39.
- the system according to the invention comprises an electrical cabinet 40 comprising a button 41 for starting a control and control unit 50 of the welding module, and a stop button 42.
- the welding can be done with or without the presence of inert gas.
- the welding module is shown without connection son, including no son connected with the control unit and control 50 for more readability of the representations.
- the control and control module 50 is embedded on the welding module.
- the cable 37 is connected to a connector 44 of the welding module.
- the pipe 39 is connected to a port 45 of the welding module.
- the connector 44 is presented on a support 46 which is orientable and is also articulated relative to the base 17, in order to adjust its size as a function of the diameter of the tube on which the system is mounted.
- the system according to the invention also comprises a feed 47 connected to a compressed air network 48 for cooling the positioning motors of the torch 8, in particular for cooling the oscillation means 60, and adjustment means respectively radial 12 and axial 13.
- the electrical cabinet 40 is connected to a solenoid valve 49 controlling the distribution of compressed air.
- the compressed air for cooling arrives via an input port 61 on the welding module and the compressed air is then distributed from this input port 45, individually to each of the positioning motors via arrival ports 62
- the electrical cabinet also supplies electricity to a box 50 mounted on the welding module and secured to the base 17, via a bead 51.
- This housing contains the onboard control and control unit 52 for the simultaneous control of the torch 8 and the drive system of the carriage.
- the control and command unit 52 is powered by the electrical cabinet. This control and control unit 52 drives the displacement motor 32.
- This control and control unit 52 includes measuring and self-checking tools for the positioning engines of the torch 8. The unit can advantageously measure the temperature of these motors.
- the control and control unit 52 can also control a spooling motor 63 of the spool for controlling the advance of the yarn 14 in the torch, and the amperage of the arc, in order to optimize the quality of the weld.
- This control and control unit 52 allows the servocontrol of the carriage displacement motor.
- the system according to the invention also comprises a remote control 53 separated, and able to be manipulated by an operator.
- This remote control is connected to the control and command unit 52, either via a wire or by a wireless communication.
- the remote control 53 is also connected to the electrical box 40 to drive the power generator.
- the welding module can be mounted on a carriage separate from that mentioned above.
- the same welding module according to the invention is compatible with separate carriages, these carriages being themselves compatible with different plating means in order to perform welding on parts of different shape.
- another carriage according to the invention and compatible with the welding module also comprises means for the removable attachment of the module on the carriage, and means for being driven in displacement relative to a veneer member.
- the veneer member may be a band retained by clamping means on the outer periphery of the tube.
- the plating means may be a rail mounted on the workpiece, for example via retention means, for example magnetic or mechanical means.
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Abstract
Description
SYSTEME MECANISE DE SOUDAGE COMPRENANT UN CARIOT ET UN MODULE DE SOUDAGE MONTE DE MANIERE AMOVIBLE SUR LE CHASSIS MECHANIZED WELDING SYSTEM COMPRISING A CARIOT AND A WELDING MODULE MOUNTED REMOVABLE TO THE CHASSIS
La présente invention a pour objet un système mécanisé de soudage portatif, de préférence pour un soudage à l'arc en particulier adaptable pour de soudures circonférentielle sur des tubes dont le diamètre extérieur peut aller de 203.2 mm (8.625") à 1219.2 mm (48"), voire en deçà et au-delà de cette plage de diamètres. The subject of the present invention is a mechanized portable welding system, preferably for an arc welding particularly adaptable for circumferential welds on tubes whose outer diameter can range from 203.2 mm (8.625 ") to 1219.2 mm (48.2 mm). "), even within and beyond this range of diameters.
Les modules de soudage mécanisé à fil fourré « Flux Core » mFCAW existants sur le marché ne sont pas portatifs. En effet, ils se montent sur un anneau ou bande de roulement qui est serrée autour de tubes à souder, avec des entretoises dont la hauteur est variable de +/- 30mm, auxquels vient s'ajouter la hauteur des modules de soudage. Ces ensembles présentent un encombrement radial du système autour du tube de l'ordre de 250mm et plus. II est par exemple connu de tels modules de soudage mécanisé, par exemple des documents US-4841 123, US2002-006021 1 , US6617548 ou encore WO204- 045797. Le document US-2015-0321280 décrit un système similaire dans lequel un module de soudage est monté de manière réversible sur un chariot capable de tourner autour d'un tube. MFCAW flux core flux-cored solder modules on the market are not portable. Indeed, they are mounted on a ring or tread which is clamped around tubes to be welded, with spacers whose height is variable +/- 30mm, to which is added the height of the welding modules. These sets have a radial size of the system around the tube of the order of 250mm and more. It is for example known such mechanized welding modules, for example documents US-4841 123, US2002-006021 1, US6617548 or WO204-045797. The document US-2015-0321280 describes a similar system in which a welding module is reversibly mounted on a carriage capable of rotating around a tube.
Ce type d'équipement nécessite un anneau de roulement spécifique à chaque soudure et un espace radial de +/-250mm dégagé de tout obstacle autour desdits tubes à souder afin de permettre aux modules de soudage existants de passer et réaliser la soudure à 360°. This type of equipment requires a rolling ring specific to each weld and a radial space of +/- 250mm clear of any obstacle around said welded tubes to allow existing welding modules to pass and perform the welding 360 °.
Pour préserver une qualité de soudure élevée, lorsque la mise en œuvre de tels modules de soudage automatisé encombrants n'est plus possible, les soudures sont réalisées manuellement par des soudeurs hautement qualifiés. Ces derniers opèrent souvent dans un environnement exigu les obligeant à adopter des postures peu ergonomiques, voire pénibles, pendant des périodes prolongées (quelques heures) notamment pour les tubes de grands diamètres et de fortes épaisseurs, d'autant plus que le procédé utilisé manuellement est relativement lent. Aucune solution de soudage automatique n'était proposée pour la réalisation de soudure dans des environnements exigus. Or il existe un besoin d'améliorer sensiblement le confort de l'opérateur, tout en aménageant la facilité d'utilisation de modules de soudage automatique. A cet effet, l'invention améliore la portabilité, tout en proposant un module de soudage permettant une bonne répétabilité ainsi qu'une traçabilité des paramètres de soudage. To maintain a high weld quality, when the implementation of such bulky automated welding modules is no longer possible, the welds are performed manually by highly skilled welders. The latter often operate in a small environment requiring them to adopt uncomfortable or even awkward postures for prolonged periods (a few hours), particularly for tubes of large diameters and thicknesses, especially since the process used manually is relatively slow. No automatic welding solution was proposed for welding in tight environments. However, there is a need to significantly improve the comfort of the operator, while improving the ease of use of automatic welding modules. For this purpose, the invention improves the portability, while providing a welding module for good repeatability and traceability of the welding parameters.
L'invention vient résoudre les problèmes ci-dessus en proposant un système de soudage automatique atteignant un optimum de compacité, tout en offrant un module de soudage optimisant les paramètres de dépôt d'une torche de soudage, en regard d'une vitesse d'avance de ladite torche, afin de maximiser le dépôt et ainsi minimiser le temps de cycle par soudure. The invention solves the above problems by proposing an automatic welding system achieving optimum compactness, while offering a welding module optimizing the deposition parameters of a welding torch, with respect to a speed of welding. advancing said torch, to maximize the deposition and thus minimize the cycle time by welding.
Un système mécanisé de soudage selon l'invention peut ainsi être mis en œuvre par d'opérateurs moins qualifiés, tout en offrant un temps de cycle et des soudures finales de qualité. A mechanized welding system according to the invention can thus be implemented by less qualified operators, while offering a cycle time and quality final welds.
A cet effet, l'invention a pour objet un système mécanisé de soudage comportant un moyen de placage apte à être monté sur une pièce à souder, un chariot mobile tel que le chariot comporte un système d'entraînement coopérant avec le moyen de placage pour permettre un déplacement du chariot relativement à la pièce à souder, et un module de soudage, caractérisé en ce que le module de soudage est monté de manière amovible sur le chariot, le module de soudage comportant une torche de soudage et un moteur de commande du mouvement de la torche. To this end, the invention relates to a mechanized welding system comprising a plating means adapted to be mounted on a workpiece, a movable carriage such that the carriage comprises a drive system cooperating with the plating means for allow a movement of the carriage relative to the workpiece, and a welding module, characterized in that the welding module is removably mounted on the carriage, the welding module comprising a welding torch and a control motor of the movement of the torch.
En particulier, l'invention a également pour objet un système mécanisé de soudage comportant un moyen de placage muni d'une chaîne apte à être montée sur une pièce à souder, un chariot mobile tel que le chariot comporte un système d'entraînement muni d'au moins une roue dentée coopérant avec la chaîne pour permettre un déplacement du chariot relativement à la pièce à souder, et un module de soudage monté de manière amovible sur le chariot, le module de soudage comportant une torche de soudage et un moteur de commande du mouvement de la torche, le chariot comportant un châssis supportant des roues, caractérisé en ce que le châssis comporte une protubérance de laquelle dépasse un moyen de mise en tension de la chaîne autour de la pièce à souder, la protubérance définissant un pourtour permettant de détromper une position d'insertion du module de soudage sur le châssis. Grâce à ce pourtour permettant de détromper une position d'insertion du module de soudage sur le châssis, le module de soudage peut être à une position déterminée relativement au tube, qui se dérive directement d'une position de la chaîne relativement au tube, et notamment d'une position de la chaîne relativement à un chanfrein d'extrémité du tube. La position de la chaîne relativement au chanfrein d'extrémité peut notamment être déterminée et calibrée, avant la mise en place du module de soudage sur le châssis. In particular, the invention also relates to a mechanized welding system comprising a plating means provided with a chain adapted to be mounted on a workpiece to be welded, a movable carriage such that the carriage comprises a drive system provided with at least one toothed wheel cooperating with the chain to allow movement of the carriage relative to the workpiece, and a welding module removably mounted on the carriage, the welding module comprising a welding torch and a control motor of the movement of the torch, the carriage comprising a frame supporting wheels, characterized in that the frame comprises a protuberance from which exceeds a means of setting tension of the chain around the workpiece, the protuberance defining a circumference to deter a position of insertion of the welding module on the frame. With this circumference making it possible to undo a position of insertion of the welding module on the frame, the welding module can be at a determined position relative to the tube, which is directly derived from a position of the chain relative to the tube, and in particular a position of the chain relative to an end chamfer of the tube. The position of the chain relative to the end chamfer can in particular be determined and calibrated, before the introduction of the welding module on the chassis.
De préférence, le moteur de commande du mouvement de la torche peut comporter au moins l'un d'un moyen d'oscillation de la torche, d'un moyen d'ajustement en hauteur de la torche relativement à la pièce à souder, et d'un moyen d'ajustement axial selon un axe perpendiculaire à ladite hauteur de la torche. Avantageusement, le moyen d'ajustement axial permet un ajustement le long d'une tangente à une trajectoire circulaire du chariot. Il peut comporter ces trois moyens, ces moyens pouvant être également appelés moteurs de positionnement. La torche de soudage et ses moteurs de positionnement associés peuvent donc être rendus amovibles du chariot. Preferably, the torch movement control motor may comprise at least one of a torch oscillation means, a means for adjusting the torch height relative to the workpiece, and axial adjustment means along an axis perpendicular to said height of the torch. Advantageously, the axial adjustment means allows adjustment along a tangent to a circular path of the carriage. It can include these three means, these means can also be called positioning engines. The welding torch and its associated positioning motors can therefore be made removable from the carriage.
De préférence, le système peut comporter une télécommande et une unité de contrôle et commande reliée à la télécommande, telle que l'unité de contrôle et commande pilote le moteur de commande du mouvement de la torche et le système d'entraînement du chariot. Avantageusement, l'unité de contrôle et commande peut aussi asservir un générateur de soudage relié au module de soudage. Preferably, the system may comprise a remote control and a control and command unit connected to the remote control, such that the control and control unit controls the motor for controlling the movement of the torch and the drive system of the carriage. Advantageously, the control and command unit can also slave a welding generator connected to the welding module.
Plus particulièrement cette unité de contrôle et commande peut être embarquée dans le module de soudage. Ainsi cette unité de contrôle et commande peut être amovible du chariot. Alternativement, l'unité de contrôle et commande pourrait également être reliée au module de soudage, sans être embarquée dans le module de soudage. Avantageusement, et pour améliorer la compacité du système, et le poids de l'ensemble à manipuler, formé par le moyen de placage et du chariot, le module de soudage peut comporter un moteur de déplacement apte à coopérer avec le système d'entraînement du chariot. Dans un tel cas, ce moteur de déplacement peut être piloté par l'unité de contrôle et commande. More particularly, this control and command unit can be embedded in the welding module. Thus this control and control unit can be removable from the carriage. Alternatively, the control and control unit could also be connected to the welding module, without being embedded in the welding module. Advantageously, and in order to improve the compactness of the system, and the weight of the assembly to be handled, formed by the plating means and the carriage, the welding module may comprise a displacement motor adapted to cooperate with the drive system. carriage. In such a case, this displacement motor can be controlled by the control unit.
Avantageusement, le moteur peut être accouplé mécaniquement avec un arbre de transmission du système d'entraînement, lorsque le module de soudage est monté sur le chariot. Notamment par un accostage tangentiel, le montage du module de soudage sur le chariot est simplifié et ne nécessite pas de d'identifier une position relative précise du moteur de déplacement relativement au système d'entraînement. Advantageously, the motor can be mechanically coupled with a drive shaft of the drive system, when the welding module is mounted on the carriage. In particular by tangential docking, the mounting of the welding module on the carriage is simplified and does not require to identify a precise relative position of the displacement motor relative to the drive system.
Pour accélérer le temps de soudage d'une pièce circonférentielle à souder, le système peut comporter un moyen de débrayage pour permettre un roulage libre du chariot relativement au moyen de placage, indépendamment du module de soudage. Ainsi, le chariot peut être déplacé le long de l'organe de placage à une vitesse supérieure à la vitesse obtenue par l'accouplement avec le moteur de déplacement. To accelerate the welding time of a circumferential piece to be welded, the system may comprise a disengaging means to allow free rolling of the carriage relative to the plating means, independently of the welding module. Thus, the carriage can be moved along the veneer member at a speed greater than the speed obtained by mating with the displacement motor.
En particulier, le chariot peut comporter ledit moyen de débrayage afin de permettre un désengagement par déplacement de l'arbre de transmission relativement au moteur de déplacement, sans nécessiter de détacher le module de soudage du chariot. In particular, the carriage may comprise said disengaging means to allow disengagement by displacement of the transmission shaft relative to the displacement motor, without the need to detach the welding module of the carriage.
Selon un mode de réalisation particulier de l'invention, le module de soudage comporte une base qui peut être munie d'une ouverture dont le pourtour est complémentaire de celui de la protubérance. Cette ouverture permet d'indexer en position, sans risque d'erreur, le module de soudage sur le chariot. Cette configuration présente également l'avantage de permettre un ajustement du moyen de mise en tension de la chaîne dépassant de la protubérance, même lorsque le module de soudage est en place sur le chariot According to a particular embodiment of the invention, the welding module comprises a base which can be provided with an opening whose periphery is complementary to that of the protuberance. This opening makes it possible to index in position, without risk of error, the welding module on the carriage. This configuration also has the advantage of allowing adjustment of the tensioning means of the chain protruding from the protuberance, even when the welding module is in place on the carriage
Par exemple, le moyen de placage est une chaîne, le chariot comportant alors au moins une roue dentée et un moyen de mise en tension de la chaîne autour de la pièce à souder. Dans ce cas, la chaîne peut être composée de maillons et apte à former un anneau homogène et refermable sur la pièce à souder. Ainsi la chaîne permet un déplacement de plus de 360° du chariot le long de cet anneau, et donc autour de la pièce à souder. For example, the plating means is a chain, the carriage then comprising at least one toothed wheel and a tensioning means of the chain around the workpiece to be welded. In this case, the chain may be composed of links and able to form a homogeneous ring and reclosable on the workpiece. Thus the chain allows a movement of more than 360 ° of the carriage along this ring, and therefore around the workpiece.
En particulier, le système selon l'invention peut s'adapter à des pièces tubulaires de différents diamètres, et pour ce faire le chariot peut comporter des roues en contact avec la pièce à souder, ces roues peuvent être montées de manière ajustable sur un châssis du chariot pour permettre un ajustement de la distance entre le châssis et la pièce à souder. In particular, the system according to the invention can be adapted to tubular parts of different diameters, and to this end the carriage can comprise wheels in contact with the workpiece to be welded, these wheels can be mounted in an adjustable manner on a frame the carriage to allow adjustment of the distance between the frame and the workpiece.
Dans un soucis continu d'adaptation à des pièces à souder de différents diamètres, le module de soudage peut comporter un support de bobine pour l'alimentation en fil de la tête de soudage, tel que le support de bobine est articulé pour adapter son encombrement radial en fonction des pièces à souder. In a continuous problem of adaptation to parts to be welded of different diameters, the welding module can comprise a coil support for the supply of wire of the welding head, such that the coil support is hinged to adapt its bulk. radial depending on the parts to be welded.
En particulier, pour faciliter la mise en place du module de soudage sur le chariot, le chariot peut comporter un moyen de positionnement et une grenouillère de verrouillage apte à coopérer avec le module de soudage pour assurer une solidarisation du module de soudage sur le chariot. In particular, to facilitate the introduction of the welding module on the carriage, the carriage may include a positioning means and a locking latch adapted to cooperate with the welding module to ensure a connection of the welding module on the carriage.
Afin d'augmenter la maniabilité par un opérateur du système mécanisé de soudage selon l'invention, le chariot peut être dépourvu de torche de soudage. Ainsi le moyen de placage et le chariot peuvent être dépourvus de tous les ombilics nécessaires au fonctionnement d'une torche de soudage. In order to increase the maneuverability by an operator of the mechanized welding system according to the invention, the carriage may be devoid of a welding torch. Thus the plating means and the carriage may be devoid of all the umbilicals necessary for the operation of a welding torch.
Avantageusement le système mécanisé de soudage selon l'invention peut être modulable, de telle sorte qu'un même module de soudage peut être compatible avec des chariots distincts, ces chariots étant eux-mêmes compatibles avec des moyens de placage distincts afin d'effectuer des soudages sur des pièces de forme différentes Advantageously, the mechanized welding system according to the invention can be flexible, so that the same welding module can be compatible with different carriages, these carriages being themselves compatible with different plating means in order to perform welds on different shaped parts
Pour faciliter la mise en œuvre d'un système mécanisé de soudage selon l'invention, l'invention a également pour objet un kit comprenant le système et au surplus un gabarit d'aide au positionnement du moyen de placage relativement à un chanfrein d'une pièce à souder. To facilitate the implementation of a mechanized welding system according to the invention, the invention also relates to a kit comprising the system and to the surplus a template for assisting the positioning of the plating means relative to a chamfer of a workpiece.
De préférence, un kit comportant un système mécanisé de soudage selon l'invention peut également comporter un moyen d'immobilisation du système d'entraînement relativement au moyen de placage pour permettre la mise en place du moyen de placage sur la pièce à souder. Preferably, a kit comprising a mechanized welding system according to the invention may also include means for immobilizing the drive system relative to the plating means to enable the placing of the plating means on the workpiece to be welded.
L'invention a également pour objet un procédé de soudage mis en œuvre au moyen d'un système mécanisé de soudage selon l'invention dans lequel le moyen de placage entoure la circonférence d'une pièce à souder, et dans lequel le module de soudage parcourt plus de 360°. The subject of the invention is also a welding method implemented by means of a mechanized welding system according to the invention in which the plating means surrounds the circumference of a workpiece to be welded, and in which the welding module travels more than 360 °.
D'autres caractéristiques et avantages de l'invention apparaîtront à l'examen de la description détaillée ci-après, et des dessins annexés, sur lesquels : Other features and advantages of the invention will appear on examining the detailed description below, and the attached drawings, in which:
La figure 1 illustre les positions de soudure réalisables avec un système selon l'invention FIG. 1 illustrates the welding positions that can be achieved with a system according to the invention
la figure 2 illustre de façon schématique, dans une vue en coupe transversale relativement à un axe longitudinal d'un tube, un ensemble selon l'invention monté autour d'un tube à souder, FIG. 2 schematically illustrates, in a cross-sectional view relative to a longitudinal axis of a tube, an assembly according to the invention mounted around a tube to be welded,
La figure 3 montre une vue en coupe longitudinale AA de la figure 2, relativement à un axe longitudinal d'un tube à souder FIG. 3 shows a longitudinal sectional view AA of FIG. 2, relative to a longitudinal axis of a tube to be welded
La Figure 4 représente une vue en coupe transversale d'un cordon de soudure qui peut être réalisé avec un système selon l'invention FIG. 4 represents a cross-sectional view of a weld bead that can be made with a system according to the invention
- Les figures 5a et 5b représentent une vue détaillée d'une torche de soudage d'un système selon l'invention dans différentes positions FIGS. 5a and 5b show a detailed view of a welding torch of a system according to the invention in different positions
La figure 6 représente une vue détaillée de dessus d'un moyen de placage d'un système selon l'invention, le moyen de placage étant réalisé selon un premier mode de réalisation sous la forme d'une chaîne, FIG. 6 represents a detailed view from above of a plating means of a system according to the invention, the plating means being produced according to a first embodiment in the form of a chain,
- La figure 7 représente une vue en coupe d'un chariot d'un système selon l'invention FIG. 7 represents a sectional view of a carriage of a system according to the invention
La figure 8 représente une vue en perspective de dessus d'un chariot d'un système selon l'invention La figure 9 représente une vue en perspective de dessus d'un module de soudage d'un système selon l'invention, notamment compatible avec le chariot de la figure 10 ; FIG. 8 represents a perspective view from above of a carriage of a system according to the invention FIG. 9 represents a perspective view from above of a welding module of a system according to the invention, in particular compatible with the carriage of FIG. 10;
La Figure 10 représente une vue en perspective de dessus d'un module de soudage selon la figure 9 assemblé avec le chariot de la figure 8 FIG. 10 represents a perspective view from above of a welding module according to FIG. 9 assembled with the carriage of FIG. 8
La figure 1 1 représente une vue en coupe transversale du module de soudage selon la figure 9 associé au chariot selon la figure 8 en coopération avec un organe de placage de type chaîne, sur le pourtour extérieur d'un tube, formant ainsi un système selon l'invention. Le plan de coupe transversale de la Figure 1 1 est orthogonal au plan de coupe longitudinal de la Figure 3. FIG. 11 represents a cross-sectional view of the welding module according to FIG. 9 associated with the carriage according to FIG. 8 in cooperation with a chain-type plating member, on the outer periphery of a tube, thus forming a system according to FIG. the invention. The cross-sectional plane of Figure 11 is orthogonal to the longitudinal section plane of Figure 3.
La figure 12 représente de manière schématique un système selon l'invention. Figure 12 schematically shows a system according to the invention.
Selon un premier mode de réalisation particulier de l'invention, le système selon l'invention a pour objet de permettre un soudage orbital par l'extérieur, d'une zone à souder circonférentielle, par exemple de manière à former un cordon de soudure annulaire autour d'un tube, ou encore à la jonction entre deux tubes en métal, de préférence de section transversale sensiblement circulaire. L'invention permet de réaliser de tels cordons de soudure annulaire, que le tube soit en position horizontale dite « 5G », ou verticale dite « 2G » et inclinée, par exemple à 45°, dite « 6G », telles que représentées sur la Figure 1 . According to a first particular embodiment of the invention, the purpose of the system according to the invention is to allow orbital welding from the outside of a circumferentially welded zone, for example so as to form an annular weld bead around a tube, or at the junction between two metal tubes, preferably of substantially circular cross section. The invention makes it possible to produce such annular weld beads, whether the tube is in a horizontal position called "5G" or a vertical position called "2G" and inclined, for example at 45 °, called "6G", as represented on the Figure 1 .
Pour réaliser une soudure dite 5G, un module de soudage part généralement d'un point de départ situé à l'aplomb, en dessous de la zone à souder, et effectue, un premier demi cordon de soudure, en remontant d'un côté de la circonférence. Le module de soudure est ensuite redescendu au point de départ, pour ensuite former un deuxième demi-cordon et ainsi de suite pour former un cordon complet couvrant l'ensemble de la circonférence. Dans le cas de tubes de section sensiblement circulaire, les deux demi cordons peuvent couvrir plus que 180°, afin de proposer des zones de recouvrement entre les deux demi-cordons. Par sensiblement circulaire, on entend des sections parfaitement circulaires, et également de telles sections présentant des défauts de circularité, voire présentant une forme d'ovalité. La Figure 2 représente une section circulaire d'un tube 1 en acier. Le diamètre extérieur OD de ce tube 1 peut aller de 203.2 mm (8.625") à 1219.2 mm (48"), voire plus. Un système mécanisé de soudage 2 selon l'invention est représenté à la figure 2, au niveau d'un apex de la section circulaire du tube. Le système de soudage 2 comporte un moyen de placage 3, ici sous la forme d'une chaîne métallique, encerclant le tube. La chaîne 3 est plaquée sur le pourtour extérieur du tube sur plus de 80% de sa circonférence. Le système de soudage comporte de plus un chariot 4 et un module de soudage 5 monté de manière amovible sur le chariot. To make a so-called 5G weld, a welding module generally starts from a starting point located vertically, below the zone to be welded, and carries out a first half weld bead, going up on one side of the circumference. The solder module is then lowered back to the starting point, then forming a second half-cord and so on to form a complete bead covering the entire circumference. In the case of substantially circular section tubes, the two half cords can cover more than 180 °, to provide overlap areas between the two half-cords. By substantially circular means perfectly circular sections, and also such sections having defects of circularity, or even having a form of ovality. Figure 2 shows a circular section of a steel tube 1. The outer diameter OD of this tube 1 can range from 203.2 mm (8.625 ") to 1219.2 mm (48") or more. A mechanized welding system 2 according to the invention is shown in Figure 2, at an apex of the circular section of the tube. The welding system 2 comprises a plating means 3, here in the form of a metal chain, encircling the tube. The chain 3 is pressed on the outer circumference of the tube over more than 80% of its circumference. The welding system further comprises a carriage 4 and a welding module 5 removably mounted on the carriage.
Le chariot 4 comporte des roues 6 pour rouler sur le pourtour extérieur du tube, de préférence de part et d'autre de la chaîne 3. Le chariot 4 comporte un châssis 7 supportant les roues 6. De préférence le chariot 4 comporte deux paires de roues 6 afin de permettre une position d'équilibre du châssis 7 à l'apex du tube. The carriage 4 comprises wheels 6 for rolling on the outer periphery of the tube, preferably on either side of the chain 3. The carriage 4 comprises a frame 7 supporting the wheels 6. Preferably the carriage 4 comprises two pairs of wheels 6 to allow a balance position of the frame 7 at the apex of the tube.
Le module de soudage 5 comporte une torche de soudage 8. Seul le module de soudage 5 comporte une troche de soudage. Le chariot est dépourvu de torche de soudage. La torche de soudage 8 permet de viser le pourtour extérieur du tube, dans une zone déportée relativement à la zone qui est située sous le châssis 7. Comme cela est représenté à la Figure 3, la chaîne 3 est disposée à distance d'un chanfrein 9 du tube, de telle sorte que les roues 6 sont également à distance longitudinale non nulle du chanfrein 9, relativement à un axe longitudinal X du tube 1 . La torche de soudage 8 est présentée à l'aplomb du chanfrein 9. The welding module 5 comprises a welding torch 8. Only the welding module 5 comprises a welding trench. The truck does not have a welding torch. The welding torch 8 makes it possible to aim the outer periphery of the tube, in a remote zone relative to the zone which is situated under the frame 7. As shown in FIG. 3, the chain 3 is arranged at a distance from a chamfer 9 of the tube, so that the wheels 6 are also at non-zero longitudinal distance from the chamfer 9, relative to a longitudinal axis X of the tube 1. The welding torch 8 is presented in line with the chamfer 9.
Le chanfrein 9 est par exemple formé à une extrémité longitudinale du tube 1 , et présente un profil particulier, de telle sorte que lorsqu'un profil homologue 10 d'un deuxième tube 1 1 compatible avec le tube 1 est présenté en regard de ce chanfrein 9, la torche de soudage 8 peut être mise en œuvre afin de remplir le volume défini par ces deux chanfreins 9 et 10, et créer ainsi un cordon de soudure. Pour associer les tubes 1 et 1 1 l'un à l'autre, plusieurs cordons de soudure annulaire successifs seront nécessaires. La figure 4 représente la torche de soudage dans une position inclinée. The chamfer 9 is for example formed at a longitudinal end of the tube 1, and has a particular profile, so that when a homologous profile 10 of a second tube 1 1 compatible with the tube 1 is presented opposite this chamfer 9, the welding torch 8 can be implemented to fill the volume defined by these two chamfers 9 and 10, and thus create a weld bead. To associate the tubes 1 and 1 1 to one another, several successive annular welding beads will be necessary. Figure 4 shows the welding torch in an inclined position.
En effet, la torche de soudage 8 est de préférence une torche de soudage à l'arc, par exemple avec matériau d'apport de type fil fourré (mFCAW). La torche 8 est orientable le long d'un axe de référence Y relativement à une normale N à l'axe longitudinal X, grâce à un moyen d'oscillation 60, visible sur les Figures 9 et 10. Le moyen d'oscillation 60 permet une oscillation selon les flèches O de la Figure 4, relativement à la normale N. Le moyen d'oscillation 60 permet le réglage cette inclinaison dans le plan P1 . Indeed, the welding torch 8 is preferably an arc welding torch, for example with flux-cored feed material (mFCAW). The torch 8 is steerable along a reference axis Y relative to a normal N to the longitudinal axis X, by means of an oscillation means 60, visible in FIGS. 9 and 10. The oscillation means 60 allow an oscillation according to the arrows O of Figure 4, relative to the normal N. The oscillation means 60 allows the adjustment of this inclination in the plane P1.
Dans un premier plan P1 passant par ledit axe longitudinal X et la normale N, la torche 8 exécute de préférence un mouvement pendulaire et programmable relativement audit axe de référence Y dans le plan P1 . L'axe de référence Y du mouvement pendulaire pouvant lui-même être ajusté. Dans un deuxième plan P2 perpendiculaire au premier plan P1 , la torche peut être inclinée afin de créer un flux de torche avant/arrière. In a first plane P1 passing through said longitudinal axis X and the normal N, the torch 8 preferably performs a pendulum and programmable movement relative to said reference axis Y in the plane P1. The reference axis Y of the pendulum movement can itself be adjusted. In a second plane P2 perpendicular to the first plane P1, the torch can be inclined to create a forward / backward torch flow.
De préférence, les cordons de soudure réalisés avec une torche 8 d'un système selon l'invention sont déposés sur une racine 70 qui est obtenue par un autre procédé. Par exemple la racine 70 peut être réalisée manuellement, avant la mise en place du système mécanisé de soudure selon l'invention. Alternativement, la racine 70 peut également être réalisée avec un système de soudage selon l'invention. Preferably, the weld seams made with a torch 8 of a system according to the invention are deposited on a root 70 which is obtained by another method. For example, the root 70 can be made manually, before setting up the mechanized welding system according to the invention. Alternatively, the root 70 can also be made with a welding system according to the invention.
Comme cela est visible à la Figures 9, l'emplacement de la torche 8 peut également être ajusté radialement et longitudinalement relativement au châssis 7. Le chariot 4 comporte à cet effet, un moyen d'ajustement radial 12 et un moyen d'ajustement longitudinal 13 de l'emplacement de la torche de soudage. La mise en œuvre du moyen d'ajustement radial 12 permet de réaliser des soudures selon un mode dit « Système de Contrôle de la Hauteur d'arc ou « Scharc » Mode » Figure 5a. La soudure Scharc Mode vise un ajustement permanent de la hauteur de la torche relativement à la surface à souder afin d'ajuster la résistance électrique du fil 14 soudé. Alternativement cet ajustement de la résistance électrique du fil soudé peut être obtenu en ajustant la vitesse d'avancement du fil 14 à souder dans la torche, comme c'est le cas Figure 5b, mode dit « VScharc Mode », s'agissant d'un Système de Contrôle de la Hauteur d'arc par gestion de la hauteur d'arc par pilotage de la vitesse de fil. As can be seen in FIG. 9, the location of the torch 8 can also be adjusted radially and longitudinally relative to the frame 7. The carriage 4 comprises for this purpose a radial adjustment means 12 and a longitudinal adjustment means. 13 of the location of the welding torch. The implementation of the radial adjustment means 12 makes it possible to perform welds in a mode called "Arc Height Control System or" Scharc Mode "Figure 5a. The Scharc Mode weld aims at a permanent adjustment of the torch height relative to the surface to be welded in order to adjust the electrical resistance of the wire. welded. Alternatively this adjustment of the electrical resistance of the welded wire can be obtained by adjusting the speed of advance of the wire 14 to be welded in the torch, as is the case in FIG. 5b, the so-called "VScharc Mode" mode, as regards An Arc Height Control System by Arc Height Management by Thread Speed Control.
Le moyen d'oscillation 60, et les moyens d'ajustement respectivement radial 12 et axial 13 sont des moteurs de positionnement de la torche 8. Le système selon l'invention peut également être mis en œuvre selon un mode manuel déterminé par l'opérateur. The oscillation means 60, and the respectively radial 12 and axial adjustment means 13 are positioning motors of the torch 8. The system according to the invention can also be implemented according to a manual mode determined by the operator .
De préférence, le fil 14 à souder est conditionné en bobine et disposé dans une cassette 15 d'où il est dévidé. La cassette 15 est située sur le module de soudage 5. La cassette 15 est reliée par une articulation 16 à une base 17 du module de soudage 5. L'articulation 16 permet de limiter l'encombrement radial du système de soudage autour du tube, en adaptant sa position angulaire de manière à être placé dans un plan sensiblement parallèle à une tangente du pourtour extérieur du tube autour duquel le système selon l'invention est monté. En particulier, le fil 14 peut être un fil fourré (mFCAW). Preferably, the wire 14 to be welded is packaged in a coil and disposed in a cassette 15 from which it is unwound. The cassette 15 is located on the welding module 5. The cassette 15 is connected by a hinge 16 to a base 17 of the welding module 5. The hinge 16 limits the radial size of the welding system around the tube, adapting its angular position so as to be placed in a plane substantially parallel to a tangent of the outer periphery of the tube around which the system according to the invention is mounted. In particular, the wire 14 may be a cored wire (mFCAW).
Le système de soudage selon l'invention a pour objectif de réaliser un cordon de soudage annulaire. A cet effet, le module de soudage est déplacé de manière orbitale autour du tube. La chaîne 3 est montée circonférentiellement autour du tube. La chaîne 3 présente un périmètre supérieur au périmètre de la section de tube sur laquelle elle est montée. Une portion de la chaîne 3 est représentée Figure 6. La chaîne 3 est formée de maillons 18 reliés deux à deux. Pour agrandir le périmètre de la chaîne, il est possible d'ajouter des maillons supplémentaires 19 au moyen d'une accroche 20 de type vis-écrou, qui permet d'augmenter la taille de la chaîne, sans altérer l'homogénéité de la succession des maillons. La chaîne comporte notamment des maillons latéraux 21 et des maillons centraux 22. The purpose of the welding system according to the invention is to produce an annular welding bead. For this purpose, the welding module is moved orbitally around the tube. The chain 3 is mounted circumferentially around the tube. Chain 3 has a perimeter greater than the perimeter of the tube section on which it is mounted. A portion of the chain 3 is shown in Figure 6. The chain 3 is formed of links 18 connected in pairs. To enlarge the perimeter of the chain, it is possible to add additional links 19 by means of a catch 20 of the screw-nut type, which makes it possible to increase the size of the chain, without altering the homogeneity of the succession. links. The chain comprises in particular lateral links 21 and central links 22.
Le périmètre de la chaîne 3 est déterminé en fonction du diamètre de tube sur lequel elle est montée. Ce périmètre permet la mise en place du chariot 5, le chariot 5 comportant des moyens de mise en tension de la chaîne 3. En particulier le chariot 5 comporte trois roues dentées respectivement 22, 23 et 24, pour s'engager avec les maillons de la chaîne et ainsi permettre le déplacement contrôlé du chariot le long de la chaîne, comme cela est représenté Figure 1 1 . The perimeter of the chain 3 is determined according to the tube diameter on which it is mounted. This perimeter allows the establishment of the carriage 5, the carriage 5 comprising means for tensioning the chain 3. In particular the carriage 5 comprises three toothed wheels respectively 22, 23 and 24, to engage with the links of the chain and thus allow the controlled movement of the carriage along the chain, as shown in Figure 1 1.
Les roues dentées 22, 23 et 24 sont libres en rotation autour d'axes de rotation parallèles entre eux, et également parallèles aux axes de rotation des roues 6. Les roues dentées 22 et 24 sont engagées avec le pourtour extérieur de la chaîne 3, tandis que la roue dentée 23 est engagée avec le pourtour intérieur de la chaîne. La roue dentée 23 peut être appelée roue intérieure, elle est disposée entre les roues dentées 22 et 24. Le chariot comporte un moyen de réglage 25 de la hauteur de la roue intérieure 23 afin d'ajuster la mise en tension de la chaîne autour du tube. Le moyen de réglage 25 s'opère par un vissage manuel afin de permettre un déplacement radial sous une tension de ressort de la roue intérieure 23 relativement à la surface extérieure du tube, et ainsi un réglage de son éloignement par rapport aux roues 22 et 24. The toothed wheels 22, 23 and 24 are free to rotate about axes of rotation parallel to each other, and also parallel to the axes of rotation of the wheels 6. The toothed wheels 22 and 24 are engaged with the outer periphery of the chain 3, while the toothed wheel 23 is engaged with the inner periphery of the chain. The toothed wheel 23 may be called the inner wheel, it is arranged between the toothed wheels 22 and 24. The carriage comprises means for adjusting the height of the inner wheel 23 in order to adjust the tensioning of the chain around the tube. The adjustment means 25 is operated by manual screwing to allow a radial displacement under a spring tension of the inner wheel 23 relative to the outer surface of the tube, and thus an adjustment of its distance from the wheels 22 and 24 .
Pour la mise en place de la chaîne 3 autour du tube, et avant sa mise en tension complète, un opérateur utilise un gabarit apte à s'engager avec le chanfrein 9. Le gabarit permet d'indexer le positionnement des roues 6 et ou de la chaîne relativement au chanfrein 9, de sorte que la torche puisse être déplacée d'une distance pouvant aller jusqu'à 35 mm, de part et d'autre du plan de joint. For the establishment of the chain 3 around the tube, and before its complete tensioning, an operator uses a template adapted to engage with the chamfer 9. The template is used to index the positioning of the wheels 6 and or the chain relative to the chamfer 9, so that the torch can be moved a distance of up to 35 mm, on either side of the joint plane.
La mise en tension de la chaîne est telle qu'elle permet d'immobiliser le chariot sur la chaîne. The tensioning of the chain is such that it makes it possible to immobilize the carriage on the chain.
Lors de la mise en place de la chaîne autour du tube, la chaîne est d'abord mise en engagement avec la roue intérieure 23. En effet, la roue intérieure 23 et le moyen de réglage 25 sont amovibles relativement au châssis 7 et aux deux autres roues dentées 22 et 24. A partir du moment où les deux extrémités libres de la chaîne dépassent de part et d'autre de la roue dentée intérieure 23, cette roue intérieure 23 et son moyen de réglage 25 sont replacés sur le châssis 7, afin de finaliser la mise en engagement de la chaîne avec les roues dentées 22 à 24. Pour la fermeture de la chaîne, et l'assemblage des deux extrémités libres, le chariot est de préférence disposé dans une position où il n'exerce pas de tension sur la chaîne. Le chariot peut être immobilisé par des moyens de maintien pour éviter de modifier la position de la chaîne relativement au tube. Les moyens de maintien en position peuvent être des aimants. Pour faciliter la fermeture de la chaîne, et le rapprochement des maillons des deux extrémités libres de la chaîne, l'opérateur peut utiliser une pince pour approcher les maillons des deux extrémités. When placing the chain around the tube, the chain is first engaged with the inner wheel 23. In fact, the inner wheel 23 and the adjustment means 25 are removable relative to the frame 7 and to both other gears 22 and 24. As soon as the two free ends of the chain protrude on either side of the internal gear 23, this inner wheel 23 and its adjustment means 25 are placed back on the frame 7, to finalize the engagement of the chain with the gears 22 to 24. For closing the chain, and the assembly of the two free ends, the carriage is preferably disposed in a position where it does not exert tension on the chain. The cart can be immobilized by holding means to avoid changing the position of the chain relative to the tube. The means for holding in position may be magnets. To facilitate the closing of the chain, and the approximation of the links of the two free ends of the chain, the operator can use a clamp to approach the links of the two ends.
La chaîne forme un périmètre homogène, tel que les roues dentées peuvent rouler sur l'intégralité de la chaîne, y compris au niveau de la ou des accroches 20. Ainsi la chaîne permet au chariot de parcourir le pourtour extérieur du tube dans son intégralité, voire d'exécuter un chemin de plus de 360° autour du tube. The chain forms a homogeneous perimeter, such that the toothed wheels can roll over the entire chain, including at the hook or hook 20. Thus the chain allows the carriage to traverse the outer periphery of the tube in its entirety, even run a path of more than 360 ° around the tube.
Le chariot comporte un système d'entraînement pour entraîner en rotation l'une des roues dentées 22 ou 24, et ainsi permettre un déplacement du chariot le long de la chaîne, la chaîne restant sensiblement fixe autour du tube. La partie de la chaîne qui est engagée dans les roues dentées se décolle de la périphérie du tube, au fur et à mesure de l'avancement du chariot autour dudit tube. The carriage comprises a drive system for driving in rotation one of the gears 22 or 24, and thus allow movement of the carriage along the chain, the chain remaining substantially fixed around the tube. The part of the chain which is engaged in the gears comes off the periphery of the tube, as the carriage progresses around said tube.
Figure 8, le système d'entraînement comporte un arbre de transmission 31 , dont une roue dentée dépasse radialement vers l'extérieur du châssis 7, lorsque ce dernier est monté autour d'un tube. Figure 8, the drive system comprises a transmission shaft 31, a gear wheel protrudes radially outwardly of the frame 7, when the latter is mounted around a tube.
Pour entraîner en rotation cet arbre de transmission, le module de soudage 5 comporte un moteur de déplacement 32, Figure 1 1 . Le module de soudage est monté de manière amovible sur le châssis. Le châssis comporte des moyens de fixation réversibles 33, tels que des grenouillères pour coopérer avec un relief complémentaire du module de soudage, par exemple une excroissance de la base 17. En particulier, le châssis comporte deux grenouillères telles que 33. To rotate this transmission shaft, the welding module 5 comprises a displacement motor 32, Figure 1 1. The welding module is removably mounted on the frame. The chassis comprises reversible fixing means 33, such as latches for cooperating with a complementary relief of the welding module, for example a protrusion of the base 17. In particular, the frame comprises two latches such as 33.
Le châssis 7 comporte une protubérance 34, de laquelle dépasse le moyen de réglage 25. Cette protubérance 34 définit un pourtour permettant de détromper la position d'insertion du module de soudage sur le châssis, la base 17 comportant une ouverture 35 dont le pourtour est complémentaire de celui de la protubérance 34. L'ouverture a par exemple une forme de croix, par exemple sous la forme d'un polyèdre comportant au moins 12 côtés. En particulier, l'ouverture 35 est non symétrique afin de ne tolérer qu'une unique position d'insertion relativement à la protubérance 34. Le pourtour de la protubérance 34 est de section couvrant une surface légèrement inférieure à la surface délimitée par l'ouverture 35 afin de permettre une mise en place sans frottement. The frame 7 comprises a protrusion 34, from which exceeds the adjustment means 25. This protrusion 34 defines a periphery for detracting the insertion position of the welding module on the frame, the base 17 having an opening 35 whose circumference is complementary to that of the protuberance 34. The opening has for example a cross shape, for example in the form of a polyhedron having at least 12 sides. In particular, the opening 35 is no symmetrical so as to tolerate only a single insertion position relative to the protuberance 34. The periphery of the protuberance 34 is of section covering a surface slightly smaller than the surface defined by the opening 35 to allow implementation without friction.
Le module de soudage est donc mis en place par translation sur le châssis du chariot. La roue dentée de l'arbre de transmission 31 comporte un axe de rotation perpendiculaire à l'axe de translation pour accostage du module de soudage. Le moteur de déplacement 32 comporte un pignon denté associé à un pignon de renvoi qui accoste tangentiellement la roue dentée. Quelle que soit la position du pignon du moteur de déplacement lors de la descente par translation du module de soudage sur le chariot, la mise en coopération du moteur de déplacement 32 avec l'arbre de transmission 31 est obtenue sans indexation préliminaire des positions respectives de la roue dentée de l'arbre de transmission 31 et du pignon denté du moteur 32. Le module de soudage est représenté monté sur le chariot sur la Figure 12. The welding module is set up by translation on the chassis of the carriage. The toothed wheel of the transmission shaft 31 has an axis of rotation perpendicular to the translation axis for docking the welding module. The displacement motor 32 comprises a pinion gear associated with a pinion gear tangentially docking the toothed wheel. Whatever the position of the displacement motor gear during the descent by translation of the welding module on the carriage, the cooperation of the displacement motor 32 with the transmission shaft 31 is obtained without preliminary indexing of the respective positions of the the toothed wheel of the transmission shaft 31 and the toothed gear motor 32. The welding module is shown mounted on the carriage in Figure 12.
La protubérance 34 forme le moyen de positionnement et est définie de manière à néanmoins limiter l'encombrement radial du système selon l'invention. Le système, par sa compacité radiale permet au chariot équipé du module de soudage de pouvoir passer entre deux tubes, par exemple distants de 150 mm, ou de 200 mm comme cela est représenté Figure 13. La compacité radiale des roues 6 au sommet de la protubérance 34, et grâce à l'articulation de la cassette 15 permettent une utilisation de la torche de soudage d'un système selon l'invention y compris dans des endroits où les manœuvres sont peu aisées pour un opérateur. Pour assurer un rapprochement optimisé du châssis relativement au pourtour du tube, quel que soit le diamètre dudit tube, les roues 6 sont ajustables en écartement et en hauteur relativement au châssis. The protrusion 34 forms the positioning means and is defined so as to nevertheless limit the radial size of the system according to the invention. The system, by its radial compactness allows the carriage equipped with the welding module to pass between two tubes, for example 150 mm apart, or 200 mm as shown in Figure 13. The radial compactness of the wheels 6 at the top of the protrusion 34, and thanks to the articulation of the cassette 15 allow use of the welding torch of a system according to the invention including in places where the maneuvers are not easy for an operator. To ensure an optimized approximation of the frame relative to the perimeter of the tube, regardless of the diameter of said tube, the wheels 6 are adjustable in spacing and height relative to the frame.
Le chariot comporte un moyen de débrayage 36 manuel du moteur de déplacement 32. Le moyen de débrayage 36 est ici une manette actionnable par un opérateur et qui permet de déplacer l'arbre de transmission 31 afin de désengager sa roue dentée du pignon denté du moteur de déplacement 32. Ainsi, l'opérateur peut manuellement déplacer le chariot le long de la chaîne indépendamment de la vitesse du moteur de déplacement. Ce déplacement peut notamment se faire à une vitesse plus rapide que celle du moteur de déplacement. Une telle disposition est notamment utile lorsqu'il n'y a pas d'opération de soudage en cours. The carriage comprises a disengaging means 36 manual displacement motor 32. The disengaging means 36 is here a lever operable by an operator and which moves the transmission shaft 31 to disengage its toothed gear of the toothed gear motor Thus, the operator can manually move the carriage along the chain regardless of the speed of the displacement motor. This movement can in particular be done at a speed faster than the displacement motor. Such an arrangement is particularly useful when there is no welding operation in progress.
Pour que l'opération de soudage se réalise, le module de soudage est relié, Figure 14, à un générateur de puissance G par un câble 37, à une source de gaz inerte 38 via un tuyau 39. Le système selon l'invention comporte une armoire électrique 40 comportant un bouton 41 de mise en marche d'une unité de contrôle et commande 50 du module de soudage, et un bouton d'arrêt 42. La soudure peut être faite avec ou sans présence de gaz inerte. For the welding operation to take place, the welding module is connected, FIG. 14, to a power generator G by a cable 37, to a source of inert gas 38 via a pipe 39. The system according to the invention comprises an electrical cabinet 40 comprising a button 41 for starting a control and control unit 50 of the welding module, and a stop button 42. The welding can be done with or without the presence of inert gas.
Figures 9 et 10, le module de soudage est représenté sans fils de connexions, notamment aucun fils connectés avec l'unité de contrôle et commande 50 pour plus de lisibilité des représentations. Dans le mode de réalisation représenté, le module de contrôle et commande 50 est embarqué sur le module de soudage. Figures 9 and 10, the welding module is shown without connection son, including no son connected with the control unit and control 50 for more readability of the representations. In the embodiment shown, the control and control module 50 is embedded on the welding module.
Le câble 37 est relié à un connecteur 44 du module de soudage. Le tuyau 39 est relié à un port 45 du module de soudage. Le connecteur 44 est présenté sur un support 46 orientable et également articulé relativement à la base 17, afin d'ajuster son encombrement en fonction du diamètre du tube sur lequel le système est monté. The cable 37 is connected to a connector 44 of the welding module. The pipe 39 is connected to a port 45 of the welding module. The connector 44 is presented on a support 46 which is orientable and is also articulated relative to the base 17, in order to adjust its size as a function of the diameter of the tube on which the system is mounted.
Le système selon l'invention comporte également une alimentation 47 reliée à un réseau d'air comprimé 48 pour le refroidissement des moteurs de positionnement de la torche 8, en particulier pour le refroidissement du moyen d'oscillation 60, et des moyens d'ajustement respectivement radial 12 et axial 13. L'armoire électrique 40 est reliée à une électrovanne 49 commandant la distribution en air comprimé. L'air comprimé pour le refroidissement arrive via un port d'entrée 61 sur le module de soudage et l'air comprimé est ensuite distribué depuis ce port d'entrée 45, individuellement sur chacun des moteurs de positionnement via des ports d'arrivée 62. L'armoire électrique alimente également en électricité un boîtier 50 embarqué sur le module de soudage et solidaire de la base 17, via un cordon 51 . Ce boîtier contient l'unité de contrôle et commande 52 embarquée pour le pilotage simultané de la torche 8 et du système entraînement du chariot. L'unité de contrôle et commande 52 est alimenté par l'armoire électrique. Cette unité de contrôle et commande 52 pilote le moteur de déplacement 32. The system according to the invention also comprises a feed 47 connected to a compressed air network 48 for cooling the positioning motors of the torch 8, in particular for cooling the oscillation means 60, and adjustment means respectively radial 12 and axial 13. The electrical cabinet 40 is connected to a solenoid valve 49 controlling the distribution of compressed air. The compressed air for cooling arrives via an input port 61 on the welding module and the compressed air is then distributed from this input port 45, individually to each of the positioning motors via arrival ports 62 The electrical cabinet also supplies electricity to a box 50 mounted on the welding module and secured to the base 17, via a bead 51. This housing contains the onboard control and control unit 52 for the simultaneous control of the torch 8 and the drive system of the carriage. The control and command unit 52 is powered by the electrical cabinet. This control and control unit 52 drives the displacement motor 32.
Cette unité de contrôle et commande 52 comporte des outils de mesure et d'auto contrôle des moteurs de positionnement de la torche 8. L'unité peut avantageusement mesurer la température de ces moteurs. This control and control unit 52 includes measuring and self-checking tools for the positioning engines of the torch 8. The unit can advantageously measure the temperature of these motors.
L'unité de contrôle et commande 52 peut également contrôler un moteur de dévidage 63 de la bobine pour contrôler l'avancement du fil 14 dans la torche, et l'ampérage de l'arc, afin d'optimiser la qualité de la soudure. The control and control unit 52 can also control a spooling motor 63 of the spool for controlling the advance of the yarn 14 in the torch, and the amperage of the arc, in order to optimize the quality of the weld.
Cette unité de contrôle et commande 52 permet l'asservissement du moteur de déplacement du chariot. Le système selon l'invention comporte également une télécommande 53 séparée, et apte à être manipulée par un opérateur. Cette télécommande est reliée à l'unité de contrôle et commande 52, soit via un fil ou soit par une communication sans fil. La télécommande 53 est également reliée au boîtier électrique 40 pour piloter le générateur de puissance. This control and control unit 52 allows the servocontrol of the carriage displacement motor. The system according to the invention also comprises a remote control 53 separated, and able to be manipulated by an operator. This remote control is connected to the control and command unit 52, either via a wire or by a wireless communication. The remote control 53 is also connected to the electrical box 40 to drive the power generator.
Selon un mode de réalisation avantageux de l'invention, le module de soudage peut être monté sur un chariot distinct de celui mentionné ci-dessus. Ainsi un même module de soudage selon l'invention est compatible avec des chariots distincts, ces chariots étant eux-mêmes compatibles avec des moyens de placage distincts afin d'effectuer des soudages sur des pièces de forme différentes. En particulier, un autre chariot selon l'invention et compatible avec le module de soudage comporte également des moyens pour la fixation amovible du module sur le chariot, et des moyens pour être entraîné en déplacement relativement à un organe de placage. L'organe de placage peut être une bande retenue par des moyens de clampage sur le pourtour extérieur du tube. Alternativement le moyen de placage peut être un rail monté sur la pièce à souder, par exemple via des moyens de rétention, par exemple des moyens magnétiques ou mécaniques. According to an advantageous embodiment of the invention, the welding module can be mounted on a carriage separate from that mentioned above. Thus, the same welding module according to the invention is compatible with separate carriages, these carriages being themselves compatible with different plating means in order to perform welding on parts of different shape. In particular, another carriage according to the invention and compatible with the welding module also comprises means for the removable attachment of the module on the carriage, and means for being driven in displacement relative to a veneer member. The veneer member may be a band retained by clamping means on the outer periphery of the tube. Alternatively the plating means may be a rail mounted on the workpiece, for example via retention means, for example magnetic or mechanical means.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1752848 | 2017-04-03 | ||
| FR1752848A FR3064513B1 (en) | 2017-04-03 | 2017-04-03 | AUTOMATIC PORTABLE WELDING SYSTEM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018185027A1 true WO2018185027A1 (en) | 2018-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2018/058293 Ceased WO2018185027A1 (en) | 2017-04-03 | 2018-03-30 | Mechanised welding system comprising a carriage and a welding module mounted removably on the chassis |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR3064513B1 (en) |
| WO (1) | WO2018185027A1 (en) |
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| CN112264741B (en) * | 2020-11-03 | 2024-08-02 | 上海昆睿机器人有限公司 | All-position welding system of nine-axis joint robot |
| CN117428803B (en) * | 2023-12-08 | 2024-02-23 | 蓬莱金创精密铸造有限公司 | Overturning manipulator for shell mold production |
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| US4841123A (en) | 1987-06-17 | 1989-06-20 | Welding Services, Inc. | Automatic welding device |
| US20020060211A1 (en) | 2000-10-10 | 2002-05-23 | Marhofer William E. | External pipe welding apparatus |
| US6492618B1 (en) * | 2000-11-02 | 2002-12-10 | Tri Tool Inc. | Automatic weld head alignment and guidance system and method |
| US6617548B1 (en) | 1998-07-24 | 2003-09-09 | Psi Pipeline Service, S.A. | Mobile device for automatic pipe welding |
| WO2004045797A1 (en) | 2002-11-18 | 2004-06-03 | Ets Cabezas F. Chaudronnerie | Device and method for working tubes, in particular tubes of different diameters, and shim and set of shims for said device |
| US20150321280A1 (en) | 2011-11-24 | 2015-11-12 | Weldbot Ltd. | System and method for modular portable welding and seam tracking |
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2017
- 2017-04-03 FR FR1752848A patent/FR3064513B1/en active Active
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2018
- 2018-03-30 WO PCT/EP2018/058293 patent/WO2018185027A1/en not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4841123A (en) | 1987-06-17 | 1989-06-20 | Welding Services, Inc. | Automatic welding device |
| US6617548B1 (en) | 1998-07-24 | 2003-09-09 | Psi Pipeline Service, S.A. | Mobile device for automatic pipe welding |
| US20020060211A1 (en) | 2000-10-10 | 2002-05-23 | Marhofer William E. | External pipe welding apparatus |
| US6492618B1 (en) * | 2000-11-02 | 2002-12-10 | Tri Tool Inc. | Automatic weld head alignment and guidance system and method |
| WO2004045797A1 (en) | 2002-11-18 | 2004-06-03 | Ets Cabezas F. Chaudronnerie | Device and method for working tubes, in particular tubes of different diameters, and shim and set of shims for said device |
| US20150321280A1 (en) | 2011-11-24 | 2015-11-12 | Weldbot Ltd. | System and method for modular portable welding and seam tracking |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3064513B1 (en) | 2019-06-21 |
| FR3064513A1 (en) | 2018-10-05 |
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