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EP2279811B1 - Machine de travail dotée d'un dispositif de transport transversal et procédé de fabrication d'une douille en utilisant la machine de travail - Google Patents

Machine de travail dotée d'un dispositif de transport transversal et procédé de fabrication d'une douille en utilisant la machine de travail Download PDF

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Publication number
EP2279811B1
EP2279811B1 EP10164434A EP10164434A EP2279811B1 EP 2279811 B1 EP2279811 B1 EP 2279811B1 EP 10164434 A EP10164434 A EP 10164434A EP 10164434 A EP10164434 A EP 10164434A EP 2279811 B1 EP2279811 B1 EP 2279811B1
Authority
EP
European Patent Office
Prior art keywords
workpieces
tool assembly
transport device
processing side
operating machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP10164434A
Other languages
German (de)
English (en)
Other versions
EP2279811A1 (fr
Inventor
Mathias Bihler
Marc Walter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otto Bihler Handels Beteiligungs GmbH
Original Assignee
Otto Bihler Handels Beteiligungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Otto Bihler Handels Beteiligungs GmbH filed Critical Otto Bihler Handels Beteiligungs GmbH
Priority to PL10164434T priority Critical patent/PL2279811T3/pl
Publication of EP2279811A1 publication Critical patent/EP2279811A1/fr
Application granted granted Critical
Publication of EP2279811B1 publication Critical patent/EP2279811B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/026—Combination of two or more feeding devices provided for in B21D43/04 - B21D43/18
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F23/00—Feeding wire in wire-working machines or apparatus

Definitions

  • the invention relates to a work machine, in particular a wire or strip bending machine, for forming workpieces passing through the work machine, having a wall-like base body which has a front and a rear machining side and having at least one tool unit for machining the workpieces, wherein the tool unit is attachable or attached to the front or the rear processing side, wherein the working machine has a transverse transport device which is formed such that workpieces to be formed by a processing side, preferably the rear processing side to the other processing side, preferably the front processing side formed in the base body through opening can be transported, and that the workpieces along a to the planes of the processing pages substantially orthogonal transverse transport direction, in particular along a bending axis d It tool aggregate, the tool assembly arranged in the region of the passage opening can be fed directly.
  • Such a machine is eg from the DE 15 27 922 A known.
  • the transverse transport device of this known working machine has a feed chute, which leads workpieces, namely strip blanks from the rear processing side to the front processing side of the main body.
  • a ZuInstitutst Congressel acts directly on the in the feed chute one behind the other workpieces in order to move these each by a feed step.
  • the transverse transport device in the DE 15 27 922 A described working machine is not able to absorb forces that occur during the forming.
  • the transverse transport shown there is based on a supply of strip material in the transverse direction, which is pre-cut on the rear processing side.
  • the pre-cut, but still contiguous strip material is then passed through an opening in the base body and fed to the front processing side a tool unit, not shown, with which, for example, a sleeve of pre-punched plates of the strip material can be produced.
  • the illustrated transverse transport variant is thus based essentially on the fact that a contiguous strip material is conveyed in the transverse transport direction.
  • the supply of strip material in the transverse direction requires in addition to the already mentioned punching device still a collection device, so that the machine takes a relatively large overall space in the transverse direction.
  • the object of the invention is to develop a working machine of the type mentioned in that the transverse transport of individual workpieces, in particular plate-like workpieces, is made possible, wherein the space taken in the transverse direction space should be as small as possible.
  • the transverse transport device is in power transmission connection with the tool unit, such that forces occurring during the forming of workpieces are at least partially supported by the transverse transport device.
  • the transverse transport device Due to the power transmission connection between the transverse transport device and the tool unit, the transverse transport device itself can be kept compact. It extends into the area of the tool unit lying on the other side of the processing and is supported on the machine by the tool unit.
  • the transverse transport device preferably has a central rail running through the passage opening, which is designed such that workpieces can be transported along it.
  • Such a central rail makes it possible that the transport device can be kept compact in the transverse direction of the work machine, as well as the existing space in the through hole is utilized to accommodate the transverse transport device.
  • the central rail can be guided very close to the tool unit of the machine, so that a reliable and reliable supply of workpieces in the tool unit is possible.
  • the transverse transport device be supported by means of a support element on the tool unit and / or on that side of the main body on which the tool unit is arranged.
  • a support element allows the already mentioned power transmission connection between the transverse transport device and tool unit.
  • the support element is preferably dimensioned such that it can support forces occurring during forming of the workpiece at least in one direction on the tool unit or on the main body. The acting forces can be transmitted from the bending core to the support element and from there to the tool unit and the main body.
  • the central rail is preferably connected to the said support element, so that the central rail is supported by the support element on the tool unit or on the main body.
  • a bending core of the tool assembly can be connected or connected to the transverse transport device, in particular to the central rail and / or the supporting element.
  • This connection between the bending core and the central rail or support element is possibly carried out by means of other components which are connected to the bending core, the support element or the central rail.
  • the transverse transport device is preferably designed such that it can be connected in different relative positions to the tool unit with this. It is especially thought that the transverse transport device can be installed rotated relative to the tool assembly by 180 ° relative to the bending axis, so that the tool unit workpieces can be supplied in different flow or transport levels.
  • the transverse transport device is designed so that its function is ensured, regardless of the position in which it is positioned to the tool unit. Assuming that workpieces are supplied in the form of individual boards above the central rail and along this the bending core at its upper peripheral edge, the same workpieces can be supplied to the lower peripheral edge of the bending core mounted in the other installed position transverse transport device below the central rail.
  • the tool unit forming which begins first from above or first from below by moving corresponding punch in the direction of the bending core.
  • the transverse transport device and the already mentioned supporting element is rotated accordingly, so that the bending forces acting during forming by the support member depending on the initial bending direction from above or from below can be supported accordingly.
  • the support element is a circular segment disc, which is supported with its peripheral edge in a corresponding recess on the tool unit and / or on the base body, wherein the circular segment disc preferably concentric to the bending axis is arranged.
  • the mentioned recess on the tool unit or on the base body is provided both above and below the bending axis and the central rail, so that the support element can be supported in any possible mounting position of the transverse transport device on the tool unit or the main body.
  • the shape of a circular segment disc has, in addition to the advantage that it can be used in different twisted mounting positions of the transverse transport device, still the further advantage that in Center of the circle segment through which the bending axis generally passes, acting forces can be passed evenly in the radial direction over the entire circumference of the circle segment, so that the forces can be optimally distributed to the tool unit or the body. Thus, there are no excessive internal stresses on the mentioned machine parts.
  • the circular segment disk is preferably dimensioned such that workpieces can be transported along the bending axis or along the central rail of the circular segment disk to the tool unit. That is, the angle included by the radial sides of the circle segment is less than 180 °, preferably less than 120 °, and preferably greater than 60 °. In a particularly preferred embodiment, the circular segment disc has approximately the shape of a quarter circle, d. H. the radial sides enclose an angle of about 90 °.
  • a workpieces moving transport carriage is slidably disposed on the central rail.
  • This transport carriage is movable along the central rail both towards the tool unit and away from it, so that individual workpieces can be continuously fed to the tool unit by the reciprocating motion.
  • this movement of the transport carriage with a machine cycle, which is essentially predetermined by the bending process, tuned.
  • the transport carriage is also preferably designed so that it can simultaneously move several, with respect to the transport direction arranged successively workpieces in the direction of the tool unit.
  • the central rail is arranged essentially concentric to the bending core of the tool unit. It was on this point noted that the central rail is preferably a cylindrical rod whose central rail axis is aligned with the bending axis. Of course, the central rail may also have a different shape, for example in the form of a double-T, a rectangular profile or the like.
  • the transverse transport device are preferably associated with lateral and parallel to the central rail Maschinen simplifyingenen on which slidably mounted workpieces to be transported, wherein preferably the distance between the two Maschinen Schogleitschienen is adjustable in order to adapt to the dimensions of the transported workpieces.
  • the Werk Gigleitschienen are removably attached to the tool unit and / or on the base body to change their position relative to the central rail can.
  • Such a change in position relative to the central rail is particularly necessary when the transverse transport device, in particular central rail, as well as the attached transport carriage and the support element are rotated by 180 ° and are arranged in this further installation position in the machine.
  • the transport carriage preferably has a plurality of carrier elements which can be brought into contact with respective workpieces to be transported, which are pivotable about the transport axis relative to the central rail and are movable back and forth in the transport direction together with the transport carriage.
  • These entrainment elements are preferably designed in the form of pins or bolts, which act on the rear edge of the workpieces with respect to the transport direction towards the tool aggregate. so that the workpieces can be moved to the tool unit.
  • the carrier elements are pivoted about the central rail so that they lie out of contact mti the workpieces, so are pivoted from the transport plane of the workpieces, so that the transport carriage and the entrainment below or above (depending on Installation position of the transverse transport device) of the workpieces can be moved away from the tool unit.
  • the transverse transport device is fastened in addition to its support by means of the support element on the tool unit or the main body on the processing unit side facing away from the tool unit by means of a holder.
  • This holder may be formed in a flange and is also designed such that it does not hinder the movement of the transport carriage along the central rail.
  • a magazine device which feeds individual boards.
  • workpieces be fed on the processing unit side facing away from the tool unit along the main body substantially orthogonal to the transport direction of the transverse transport device.
  • Such a feed also has the advantage that in the longitudinal direction of the working machine the transverse transport, for example, a punching device can be preceded, in which from a fed in the longitudinal direction of the machine strip material to be transported in the transverse direction boards are punched.
  • the working machine comprises on the processing unit facing away from the tool unit a coupled to the transverse transport device, preferably integrated, further Tool unit, which brings the supplied workpieces before transporting them to the other processing side in a preform.
  • a further tool unit can, for example, serve to slightly pre-bend the essentially flat workpieces in their outer edge regions, which is advantageous, for example, in the manufacture of cylindrical sleeves in the first tool unit. If, in particular, the front and rear edge regions or edge sections of the workpieces are bent relative to the longitudinal direction of the work machine, further transport of the workpieces thus deformed in the longitudinal direction is not optimal. Therefore, the direct production of a preform before or during the transverse transport of the workpiece is particularly advantageous.
  • Fig. 1 shows a work machine 10, which is set up as a bending machine for the production of sleeves. It concerns with the Fig. 1 to a simplified schematic view of a front side A of the bending machine 10.
  • the bending machine comprises a supported on a substrate U wall-like base body 12, on which a working tool for machining workpieces 14 (also referred to as bending station or bending tool) is mounted. From the illustration it can be seen that 12 openings 16 are recessed on the base body, through which the view of an indicated central drive wheel 18 is released.
  • Drive devices 20a-20d for bending punches 22a-22d of the bending tool 14 can be coupled to this drive wheel 18.
  • the bending punches 22a-22d shown here are movable relative to a bending axis B substantially in the radial direction towards a bending core 24 and away from it.
  • the tool unit 14 further comprises a base plate 12 attached to the base plate 26 and a cover plate, not shown here, which is attachable to the bending tool 14 that the bending punch 22 a - 22 d between it and the base plate 26 are received.
  • a cover plate not shown here
  • Fig. 2 shows a highly schematic section through the bending machine 10 according to the section line II-II.
  • the main body 12 of the bending machine and a passage opening 28 recessed in the base body 12 can be seen.
  • a transverse transport device 30 here shown only partially and greatly simplified, by means of which plate-like workpieces 32 extend from the rear side B of the working machine 10 can be fed to the front of the tool unit 14 A.
  • From the tool unit 14 of the bending core 24 can be seen.
  • the workpieces 32 supplied along the base body 12 on the rear side B of the bending machine 10 pass from the rear side B into the tool unit 14 on the front side A through a predetermined number of process steps Fig.
  • step II an optional pre-bending of the workpiece 32 can take place, wherein in particular lateral edge sections 32-1 and 32-2 can be slightly pre-bent.
  • a corresponding bending tool with its base plate 25 may be provided on the transverse transport device 30 or on the main body 12.
  • the pre-bending of the workpieces 32 is not absolutely necessary.
  • the positions III and IV are pure intermediate positions on the transverse transport device 30 during the transport of a workpiece 32 through the passage opening 28 in the base body 12.
  • the workpiece 32 is tangent to the bending core 24 and can by the in the Fig. 1 be seen bending punch 22a - 22d bent to the finished sleeve. Further details on the transverse transport device 30 will be described below.
  • Fig. 3 is a schematic perspective view obliquely from the front of the tool assembly 14. It can be seen the base plate 26 of the tool assembly 14 and two of the attached punch 22b and 22c. In the base plate 26, an opening 34 is recessed through which workpieces can be conveyed.
  • the passage opening 34 of the base plate 26 is slightly smaller than the passage opening 28 in the base body 12 (see Fig. 2 ). However, the size of the passage opening 34 of the base plate 26 may also vary depending on the size of the workpieces that are to be transported through this passage opening 34 therethrough.
  • a central rail 36 is a cylindrical rod, possibly also a hollow cylindrical rod whose longitudinal axis LA is aligned with the bending axis BA.
  • a cylindrical spacer element 40 adjoins the support element, to which the bending core 24 (not illustrated here) can be fastened.
  • Fig. 4 shows a cross section through the bending machine 10 according to the section line IV-IV of Fig. 1
  • Fig. 5 shows an enlarged section corresponding to the dashed rectangle V of Fig. 4 ,
  • the front processing side A can be seen on the left side of the main body 12, the rear processing side B and on the right side.
  • Other components already known are the tool unit 14 on the front A with its base plate 26, the bending core 24 and punch punches 22b and 22c.
  • the passage opening 28 is formed in the main body 12 through which the mentioned transverse transport device 30 extends.
  • the transverse transport device is supported on the front side A by means of its support element 38 in a corresponding recess 42 of the base plate 26 of the tool unit 14.
  • the transverse transport device 30 is connected by means of a flange-like holder 44 with the base body 12.
  • the transverse transport device has the already mentioned central rail 36, which extends through the passage opening 28 of the base body 12 and is connected by means of the spacer 40 with the bending core 24.
  • the central rail 36 formed as a cylindrical rod and the bending core 24 are concentric with one another aligned, such that the bending axis BA is aligned with the transverse transport axis QT.
  • a transport carriage 46 is mounted displaceably in the transverse transport direction QT. This transport carriage 46 can be reciprocated along the central rail 36.
  • the transport carriage 46 is not rotatable relative to the central rail 36 around it.
  • a plurality of driving elements in the form of pins or bolts 48 are mounted, which are pivotable relative to the transport carriage 46 and the central rail 36 about the axis QT.
  • a pivot drive 50 is provided, which is fixedly connected to the transport carriage 46.
  • Fig. 6 is a perspective view of obliquely behind the transverse transport device 30 and the tool assembly 14 with its base plate 26. From this illustration, two side of the central rail 36 arranged Maschinen Anlagengleitschienen 52-1 and 52-2 can be seen, on which workpieces 32 during their transport in the transverse transport direction QT their lateral edge portions 32-1 and 32-2 rest.
  • the slide rail 52-1 is also in the Fig. 3 seen.
  • adjusting means 54-1 and 54-2 are also provided for each slide 52-1 and 52-2 provided adjusting means 54-1 and 54-2, by which the distance of the slide rails 52-1 and 52-2 can be adjusted to each other. This adjustment takes place as a function of the dimensions of the workpieces 32 to be transported.
  • FIGS. 4 and 5 the slide 52-2 is shown.
  • a drive device 56 is indicated, by means of which the transport carriage 46 can be moved back and forth along the central rail 36 in the transverse transport direction QT. It is also noted that the in Fig. 6 shown workpieces 32 are shown with non-pre-bent end portions 32-1 and 32-2. However, such workpieces could also be transported by the transverse transport device 30.
  • Fig. 7 is an enlarged view of the transverse transport device 30.
  • the transverse transport device 30 has a plurality of carrier elements 48. These driving elements are arranged in pairs laterally of the central rail 36. This results in the transverse transport direction QT in the direction of the bending tool 14, a group of right-hand driving elements and a group of left driving elements. These groups are characterized in that their reference numbers are each identified by the lowercase letter r or I. Further, the driving elements are arranged in pairs laterally of the central rail 36 so that a pair causes the forward movement of a workpiece by applying to this workpiece and the other pair of driving element causes the braking of the transported workpiece.
  • driving elements for the feed have a lowercase letter v and driving elements for braking a lowercase letter b.
  • the reference numerals have a continuous numbering of 1 to 7 in accordance with their paired order along the central rail 36.
  • All driving elements 48-1 to 48-7 on the left side are via a common carrier 581 with two pivoting levers 60 and 62, which are pivotally mounted on the transport carriage 46.
  • the pivot levers 60 and 62 are connected to each other on the side facing away from the carrier 581 via a common pivot axis 64. At the pivot axis 64 is already in Fig.
  • pivot drive 50 attached, which is rotatably supported by means of a tightened on the transport carriage ring holder 66. If the drive 50 is actuated, the pivot levers 60 and 62 are pivoted upwards or downwards about the axis QT and together with them the carrier 58l and the entrainment elements 48-1l to 48-7l located on the left side.
  • a pivoting drive arrangement described for this for the left side is also available for the entrainment elements 48-1 r to 48-7r arranged on the right side.
  • the statements made for the left driving elements thus also apply analogously to the right driving elements 48-1r to 48-7r.
  • the drive device 50 can be electric, hydraulic or pneumatic.
  • the provided for the advance of workpieces in the direction of the tool assembly 14 entrainment elements 48-1, 48-3, 48-5 and 48-7 on both sides are arranged to each other at a regular distance.
  • the carrier elements 48-2, 48-4 and 48-6 on both sides of the central rail 36, which act counter to the feed direction and brake the workpiece, are each connected to a carrier 681 or 68r which is displaceably connected to the carrier 58I or 58R.
  • the carriers 68r and 681 are displaceable relative to the carriers 58r and 581, respectively, such that the distance between the feed-causing carrier elements and the deceleration-causing carrier elements can be adjusted.
  • This adjustable distance W is set according to the dimensions of the workpiece to be conveyed.
  • screws 70 are provided in order to fix the carrier 68r or 681.
  • the support element 38 by means of which the transverse transport device 30 is supported on the base plate 26 of the tool assembly, has substantially the shape of a circle segment and is received with its outer peripheral edge 72 in the recess 42 formed in the base plate 26.
  • the Fig. 7 further shows that in the base plate 26, an upper recess 42 'is formed. This also arcuate or circular recess can also accommodate the support member 38 of the transverse transport device when the transverse transport device is rotated by 180 ° relative to the axis QT or the bending axis BA to be installed.
  • the transverse transport device 30 requires little space in the transverse direction.
  • the transport carriage to be moved is relatively light, so that, including the workpieces to be transported only a weight of less than 20 kg must be moved.
  • Fig. 8a shows the case in which workpieces 32 are transported above the central rail 36.
  • the carrier elements 48-3lv and 48-3rv are shown here.
  • the Schwenkhebelarm 60 for the left driving element 48-3lv can be seen.
  • the entrainment 48-3rv is mounted on a symmetrically formed Schwenkhebelarm 60 '.
  • the two pivot lever arms 60, 60 'and the entrainment elements 48-3 mounted thereon can be pivoted upwards or downwards about the central rail 36 or the axis QT, which is indicated by the double arrows P. If a workpiece 32 is transported in the direction of the tool unit, the carrier elements 48 in the in Fig. 8a shown upper position, which can also be referred to as transport position.
  • the swiveling lever arms 60, 60 'and the associated driving elements 48-3lv, 48-3rv are pivoted downwards into a return position, in which the driving elements 48 are no longer in engagement can be moved away from the tool unit 14 with the workpiece 32, but so that in the next power stroke, a subsequent workpiece 32 can be promoted in the direction of the tool assembly 14.
  • Fig. 8a illustrated installation position of the transverse transport device 30 corresponds to that in the Fig. 1 to 7 illustrated installation.
  • Fig. 8b shows a rotated by 180 ° mounting position of the transverse transport device 30, wherein the central rail 36, the support member 38 and the transport carriage together with swivel lever arms 60, 60 'and driving elements 48-3lv, 48-3rv are also rotated.
  • workpieces below the central rail 36 can be supplied to the tool unit, so that the workpiece 32 tangentially abuts the tool unit on the underside of the bending core and in a first step is bent from below upwards to the finished sleeve.
  • the slide rails 52-2 and 52-1 are displaced from a position lying laterally above the central rail 36 (FIG. Fig. 8a ) is mounted in a position laterally below the central rail 36, as is the Fig. 8b can be seen.
  • Fig. 8 From the representations of Fig. 8 It can be seen that the transverse transport device by simply rotating a supply of workpieces in different transport levels TE-1 and TE-2 allows.
  • the feeding of workpieces in different transport planes leads to a high degree of flexibility of the working machine, because it can optionally be decided whether an upper side 32o of the workpiece 32 forms the outer peripheral edge after being formed into the sleeve ( Fig. 8a ) or the inner peripheral edge ( Fig. 8b ).
  • sleeves are made of multilayer materials, for example, given that the punching direction must be from soft to hard material, ie, that the soft material will always be the top 32o.
  • the workpiece 32 can then be bent around the bending core from above or from below, so that the softer material forming the upper side 32o lies either outside or inside the finished sleeve.
  • FIG. 9 This figure shows a workpiece 32 whose outer ends 32-1 and 32-2 have been pre-bent.
  • This pre-bending preferably takes place on the rear processing side B of the working machine (see step II of the Fig. 2 ).
  • the addressed edge portions 32-1 and 32-2 are pre-bent with a radius which corresponds to the radius R of the bending core.
  • the bending takes place at a predetermined length, which is preferably about 1/16 to 1/4 of the total length of the workpiece. In the example given, the pre-bent length is about 1/8 of each Total length of the workpiece 32.
  • the thus pre-bent workpiece is then supplied by means of transverse transport device to the tool unit 14, where it is first transformed from above to the bending core around. It is specific to this technique that in the final stage of the forming process, when the bending punches 22c, 22d press the workpiece against the bending core 24 from below, the two pre-bent ends 32-1, 32-2 can be brought into engagement in nearly tangential direction , Such a tangential telescoping of corresponding contours for producing a clinch connection prevents shearing at the connecting edges, as is often the case with non-pre-bent ends, which are pressed together with a more radially acting component.
  • a finished sleeve can finally be fed to a calibrating device, in particular a ring press, in which it is brought into its definitive final shape by hammering. Subsequently, the finished sleeve is ejected from the bending machine.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Forging (AREA)
  • Feeding Of Workpieces (AREA)

Claims (15)

  1. Machine de travail, en particulier machine de pliage de fil métallique ou de bande, pour le formage de pièces (32) passant par la machine de travail, avec un corps de base (12) de type paroi, se trouvant sur un fond (U), lequel présente un côté d'usinage avant et un côté d'usinage arrière (A, B), et avec au moins un groupe d'outils (14) pour l'usinage des pièces (32), sachant que le groupe d'outils (14) est ou peut être monté sur le côté d'usinage (A, B) avant ou arrière,
    sachant que la machine de travail présente un dispositif de transport transversal (30) réalisé de telle manière que des pièces (32) à former peuvent être transportées d'un côté d'usinage, de préférence du côté d'usinage arrière (B), à l'autre côté d'usinage, de préférence le côté d'usinage avant (A), par une ouverture de passage (28) réalisée dans le corps de base (12), et en ce que les pièces (32) peuvent être directement amenées le long d'un sens de transport transversal (QT) sensiblement orthogonal aux plans des côtés d'usinage (A, B), en particulier le long d'un axe de pliage (BA) du groupe d'outil (14), au groupe d'outil (14) disposé dans la zone de l'ouverture de passage (28),
    caractérisée en ce que le dispositif de transport transversal (30) est en liaison de transmission de force (38, 42) avec le groupe d'outil (14) de telle manière que des forces générées lors du formage des pièces (32) sont en appui au moins en partie sur le dispositif de transport transversal (30).
  2. Machine de travail selon la revendication 1, caractérisée en ce que le dispositif de transport transversal (30) présente un rail central (36) s'étendant au travers de l'ouverture de passage (28), le rail central étant réalisé de telle manière que des pièces (32) puissent être transportées le long de celui-ci.
  3. Machine de travail selon la revendication 1 ou 2, caractérisée en ce que le dispositif de transport transversal (30) est en appui au moyen d'un élément d'appui (38) sur le groupe d'outil (14) et/ou sur le côté d'usinage (A) du corps de base (12) sur lequel le groupe d'outil (14) est disposé.
  4. Machine de travail selon les revendications 2 et 3, caractérisée en ce que le rail central (36) est relié à l'élément d'appui (38).
  5. Machine de travail selon la revendication 3 ou 4, caractérisée en ce qu'un mandrin de pliage (24) du groupe d'outil (14) est ou peut être relié au dispositif de transport transversal (30), en particulier au rail central (36) et/ou à l'élément d'appui (38).
  6. Machine de travail selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le dispositif de transport transversal (30) est configuré de telle manière qu'il puisse être relié au groupe d'outil (14) dans différentes positions relatives par rapport à celui-ci.
  7. Machine de travail selon les revendications 3 et 6, caractérisée en ce que l'élément d'appui (38) est un disque de segment de cercle qui est en appui par son bord périphérique (72) dans un évidement (42) correspondant sur le groupe d'outil (14) et/ou sur le corps de base (12), sachant que le disque de segment de cercle (38) est disposé de préférence de manière concentrique à l'axe de pliage (BA), sachant que le disque de segment de cercle (38) est dimensionné de préférence de telle manière que des pièces (32) puissent être transportées le long de l'axe de pliage (BA) devant le disque de segment de cercle (38) vers le groupe d'outils (14).
  8. Machine de travail selon la revendication 2 ou l'une quelconque des revendications 3 à 7 en combinaison avec la revendication 2, caractérisée en ce qu'un chariot de transport (46) déplaçant les pièces (32) vers le groupe d'outil (14) est disposé de manière mobile sur le rail central (36).
  9. Machine de travail selon les revendications 2 et 8, caractérisée en ce que le rail central (36) est disposé de manière sensiblement concentrique au mandrin de pliage (24) du groupe d'outil (14).
  10. Machine de travail selon la revendication 8 ou 9, caractérisée en ce qu'au dispositif de transport transversal (30) sont associés des rails de glissement de pièce (52-1, 52-2) latéraux et disposés parallèlement au rail central (36), sur lesquels des pièces (32) à transporter reposent de manière mobile, sachant que la distance entre les deux rails de glissement de pièce (52-1, 52-2) peut être réglée de préférence afin de l'adapter à la dimension des pièces (32) à transporter, sachant que les rails de glissement de pièce (52-1, 52-2) sont fixés de préférence de manière amovible au groupe d'outil (14) et/ou au corps de base (12) afin de pouvoir modifier leur position par rapport au rail central (36).
  11. Machine de travail selon l'une quelconque des revendications 8 à 10, caractérisée en ce que le chariot de transport (46) présente plusieurs éléments d'entraînement (48-1...48-7) pouvant être amenés en contact avec des pièces (32) respectives à transporter, qui peuvent être pivotés par rapport au rail central (36) autour de l'axe de transport (QT) et sont mobiles conjointement avec le chariot de transport (46) en allers-retours dans la direction de transport, sachant que les éléments d'entraînement (48-1...48-7) peuvent être pivotés de préférence entre une position d'entraînement, dans laquelle ils sont ou peuvent être amenés en contact avec les pièces (32), et une position de libération, dans laquelle ils peuvent être déplacés devant les pièces (32).
  12. Machine de travail selon l'une quelconque des revendications 8 à 11, caractérisée en ce que le dispositif de transport transversal (30) est fixé par une fixation (44) sur le côté d'usinage (B), éloigné du groupe d'outil (14), du corps de base (12).
  13. Machine de travail selon l'une quelconque des revendications précédentes, caractérisée en ce que des pièces (32) peuvent être amenées sur le côté d'usinage (B) éloigné du groupe d'outil (14) du corps de base (12) le long du corps de base (12) sensiblement orthogonalement au sens de transport (QT) du dispositif de transport transversal (30).
  14. Machine de travail selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle comporte, sur le côté d'usinage (B) éloigné du groupe d'outil (14), un autre groupe d'outil couplé au dispositif de transport transversal (30) qui amène dans une préforme des pièces amenées avant leur transport de l'autre côté d'usinage (A).
  15. Procédé de fabrication d'une douille cylindrique en une pièce de type plaque en métal, en utilisant une machine de travail selon l'une quelconque des revendications précédentes, comprenant les étapes suivantes :
    amenée des pièces (32) sur un côté d'usinage (B), de préférence du côté d'usinage arrière, de la machine de travail (10) ;
    de préférence prépliage des pièces (32), en particulier pliage des sections d'extrémité extérieures (32-1, 32-2) des pièces (32) ;
    transport des pièces (32) d'un côté d'usinage (B) à l'autre côté d'usinage (A), de préférence le côté d'usinage avant, directement dans un groupe d'outil monté sur ce côté d'usinage ;
    pliage de la pièce (32) dans le groupe d'outil (14) pour la douille finie, sachant que les extrémités (32-1, 32-2), se rencontrant lors du processus de pliage, de la pièce sont reliées entre elles de préférence à l'aide d'un rivetage établi lors du processus de pliage ;
    de préférence suite du transport de la douille dans un poste d'étalonnage, en particulier presse annulaire;
    expulsion de la douille finie.
EP10164434A 2009-07-29 2010-05-31 Machine de travail dotée d'un dispositif de transport transversal et procédé de fabrication d'une douille en utilisant la machine de travail Not-in-force EP2279811B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10164434T PL2279811T3 (pl) 2009-07-29 2010-05-31 Maszyna robocza z urządzeniem do transportu poprzecznego i sposób wytwarzania tulei z zastosowaniem maszyny roboczej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009035203A DE102009035203A1 (de) 2009-07-29 2009-07-29 Arbeitsmaschine mit Quertransportvorrichtung und Verfahren zum Herstellen einer Hülse unter Verwendung der Arbeitsmaschine

Publications (2)

Publication Number Publication Date
EP2279811A1 EP2279811A1 (fr) 2011-02-02
EP2279811B1 true EP2279811B1 (fr) 2011-12-07

Family

ID=43034309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10164434A Not-in-force EP2279811B1 (fr) 2009-07-29 2010-05-31 Machine de travail dotée d'un dispositif de transport transversal et procédé de fabrication d'une douille en utilisant la machine de travail

Country Status (5)

Country Link
EP (1) EP2279811B1 (fr)
AT (1) ATE536225T1 (fr)
DE (1) DE102009035203A1 (fr)
ES (1) ES2376287T3 (fr)
PL (1) PL2279811T3 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1527922B2 (de) * 1966-07-12 1976-10-07 Bihler, Otto, 8959 Halblech-Füssen Zufuehreinrichtung an einem stanz- und biegeautomaten
DE2741576C2 (de) * 1977-09-15 1982-09-30 Otto Bihler Maschinenfabrik Gmbh & Co Kg, 8959 Halblech Bearbeitungsmaschine für Draht- bzw. Bandmaterial, insbesondere Stanz- und Biegeautomat
US5203191A (en) * 1990-05-02 1993-04-20 North America Omcg, Inc. Versatile automatic metal strip working machine
DE19605647A1 (de) * 1996-02-15 1997-08-21 Mathias Bihler Bearbeitungsmaschine

Also Published As

Publication number Publication date
ATE536225T1 (de) 2011-12-15
DE102009035203A1 (de) 2011-02-10
ES2376287T3 (es) 2012-03-12
PL2279811T3 (pl) 2012-05-31
EP2279811A1 (fr) 2011-02-02

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