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US20170320126A1 - Radial forging machine - Google Patents

Radial forging machine Download PDF

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Publication number
US20170320126A1
US20170320126A1 US15/526,297 US201515526297A US2017320126A1 US 20170320126 A1 US20170320126 A1 US 20170320126A1 US 201515526297 A US201515526297 A US 201515526297A US 2017320126 A1 US2017320126 A1 US 2017320126A1
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US
United States
Prior art keywords
tools
forging
tool
radial
longitudinal axis
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.)
Abandoned
Application number
US15/526,297
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English (en)
Inventor
Davide Cibecchini
Marco Schreiber
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.)
Danieli and C Officine Meccaniche SpA
Original Assignee
Danieli and C Officine Meccaniche SpA
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.)
Filing date
Publication date
Application filed by Danieli and C Officine Meccaniche SpA filed Critical Danieli and C Officine Meccaniche SpA
Assigned to DANIELI & C. OFFICINE MECCANICHE S.P.A. reassignment DANIELI & C. OFFICINE MECCANICHE S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CIBECCHINI, Davide, SCHREIBER, MARCO
Publication of US20170320126A1 publication Critical patent/US20170320126A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/14—Forging machines working with several hammers
    • B21J7/16—Forging machines working with several hammers in rotary arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B21J13/03—Die mountings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools
    • B21J13/085—Accessories for handling work or tools handling of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/14—Forging machines working with several hammers

Definitions

  • the present invention relates to a radial forging machine and to one or more forging tools.
  • the operating principle in the case of multiple tool radial forging is that of simultaneously processing the input metal product, by means of several tools, for example four, which act radially with respect to the longitudinal axis of introduction of the metal product to be forged.
  • such supporting equipment also allows centering the tools with respect to the machine references. Once the positioning of the support equipment is carried out in the loading procedure, the operators manually block the tools on the forging devices by using irreversible mechanical restraints. The supporting equipment is then removed.
  • the unloading procedure occurs in reverse by inserting the supporting equipment in the machine, manually releasing the tools from the forging devices and restraining the tools to said support equipment.
  • tie rods which have to be tightened or loosened manually at each replacement.
  • a tie rod creates a two-sided restraint between tool and head of the forging device or cylinder, or simply hammer, by means of the aid of two shaped plates working in opposition: this is the most common solution among manufacturers.
  • the loading cycle requires the introduction of tools at ambient temperature. This involves the transitionary heating of the tools in the first processing, which negatively affects the homogeneity of the production lots.
  • Reducing machine tooling times is a key aspect for the competitiveness of a plant in situations in which productivity is a significant component, such as for radial forging machines.
  • the present invention proposes to achieve the objects discussed above by making a radial forging machine which, in accordance with claim 1 , comprises:
  • said loading/unloading system comprises:
  • said tool moving means comprise a support frame provided with housings; the frame being adapted to receive simultaneously, in an unloading step of the tools from the forging devices, the tools in the respective housings in the transition from said first position to said second position, and to restrain them to the support frame itself; and the frame being adapted to bring simultaneously, during the loading step of the tools onto the forging devices, the tools to the respective forging devices in the transition from said first position to said second position,
  • the actuation means can release the tools from the respective forging device and the tool moving means can translate from said second position to said first position, thus moving the tools away from the respective forging devices
  • the actuation means can block the tools to the respective forging device and the tool moving means can translate from said second position to said first position, thus releasing the tools from the support frame.
  • a second aspect of the invention relates to a method for unloading the tools from the aforesaid radial forging machine which, according to claim 20 , comprises the following steps:
  • a further aspect of the invention relates to a method for loading the tools onto the aforesaid radial forging machine which, according to claim 21 , comprises the following steps:
  • the two-sided restraining means between forging device and tool allow blocking and releasing the latter by means of actuation means of any type.
  • the two-sided restraining means comprise one-sided prismatic restraints, in shape of reaction plates, acting between the tool and the interface element of the forging device, that is the toolholder, and releasable by means of a motion of moving away the reaction plate in direction orthogonal to the direction of motion of the forging device.
  • Such one-sided prismatic restraints are made two-sided by the application, between said interface element and the reaction plate making the prismatic restraint, of one or more tie rods kept tensioned by elastic return means of any type.
  • the two-sided restraint is released by means of the application of external reaction forces which oppose the return forces of the elastic means and allow the disengagement of the tool from the forging device: such external forces are directed in opposite direction to each other.
  • the actuation means can be actuated by a classic forging manipulator, and together with the tool moving means, they allow the loading and unloading operations in automatic or possibly semi-automatic manner
  • the tool moving means provide to support and move the tools, in number equal to that required by the radial forging machine, and in a preferred variant also provide to actuate the blocking and releasing system of the tools from the forging devices, the aforesaid actuation means being integrated in the moving means.
  • the moving function is carried out by a movable support frame to which the tools are completely restrained: the radial and circumferential blocking of the tools is such as to be obtained by means of simple translating movements of the support frame relatively to the radial forging machine. Alternatively, in completely equivalent manner, such radial and circumferential blocking can be obtained by means of the translating movement of the forging devices with respect to said support frame.
  • the axial blocking of the tools to the support frame exploits the aforesaid relative logic of movement equally for the coupling and the uncoupling, and is obtained by a restraint, preferably a programmed yield restraint.
  • a restraint preferably a programmed yield restraint.
  • Such a programmed yield is based on a preassigned value of the force of separation, which can be calibrated by means of preloading elastic reaction elements.
  • the radial and circumferential blocking of the tools to the moving means is obtained by means of shaped profiles applied to the support frame.
  • the longitudinal development of these shaped profiles is orthogonal to the plane containing the axes of motion of the forging devices: this allows the application and the disengagement of such restraints by means of the relative movement of the support frame with respect to the radial forging machine in the direction of the longitudinal development of the profiles.
  • a further aspect of the present invention provides for the system controlling the release of the two-sided restraint to be such as to allow the application of the reaction forces by acting on a single side, i.e. according to only one of the two directions of the reaction forces, by using a motion reversal device.
  • Said motion reversal device can be positioned on board the equipment for moving the tools or on the end part of the toolholder.
  • the motion reversal device is an integral part of the moving means, being formed by mechanisms in which at least one pinon meshes simultaneously on two racks arranged so that the meshing arc of each rack can be positioned on the arc of the other rack by means of a rigid 180° rotation with respect to the axis of rotation of said pinon.
  • reaction frames free to rotate about a same axis, with two racks rigidly restrained to each of said two reaction frames: the pinon rotates freely about a pin restrained to the support frame, which restrains the two reaction frames to each other in rotation.
  • Said support frame is formed by two parts free to rotate with respect to one another and rigidly restrained to each other according to the axis of rotation Z, such an axis being coincident with the one of the two reaction frames.
  • a first part of the support frame forms the support structure of the tools, while a second part of the support frame rotates rigidly together with the two reaction frames.
  • the method for loading and unloading the tools onto the radial forging machine is completely automated and is executed by activating only the known manipulators of a forging machine.
  • Such a method comprises the following steps:
  • the automatic loading and unloading system of the tools for the radial forging machine, object of the present invention in particular has the following advantages:
  • FIG. 1 a depicts a sectional view of first components of the machine according to the invention, in a first operating position
  • FIG. 1 b depicts a top view of the first components in said first operating position
  • FIG. 1 c depicts a sectional view of the first components in FIG. 1 a , in a second operating position;
  • FIG. 1 d depicts a top view of the first components in said second operating position
  • FIG. 2 depicts a complete, partly sectional view, of second components of the machine according to the invention
  • FIG. 2 a depicts an axonometric view of some of the second components in FIG. 2 ;
  • FIG. 3 depicts a view along an axis Z of one of said second components in FIG. 2 ;
  • FIG. 3 a depicts a side view of a tool of the machine according to the invention
  • FIG. 4 a depicts a side view of a further component of the machine according to the invention.
  • FIG. 4 b depicts a top, partly sectional view of said further component in FIG. 4 a ;
  • FIG. 4 c depicts a perspective view of a first step of blocking a tool by means of the further component in FIG. 4 b ;
  • FIG. 4 d depicts a perspective view of a second step of blocking a tool by means of the further component in FIG. 4 b ;
  • FIG. 5 depicts a perspective view of the main components according to the present invention, in a first operating position
  • FIG. 6 a depicts a perspective view of the main components according to the present invention, in a second operating position
  • FIG. 6 b depicts a perspective view of the main components according to the present invention, in a third operating position.
  • the radial forging machine object of the present invention comprises:
  • FIGS. 5, 6 a and 6 b shows part of a radial forging machine with four tools 5 (one of which not visible), each mounted on a respective toolholder 1 .
  • a toolholder or interface element 1 is arranged between each forging device and the respective tool 5 , once mounted on the machine.
  • this loading/unloading system comprises:
  • the tool moving means comprise a movable support frame having a longitudinal axis coincident with axis Z, adapted to receive simultaneously, in an unloading step of the tools, the tools 5 in the respective housings 5 ′ of said support frame in the transition from said first position to said second position, and to restrain them to the support frame. Therefore, in unloading step, once the tools 5 are restrained to the support frame, the actuation means can release the tools 5 from the respective forging device, or toolholder 1 , and the tool moving means can translate from said second position to said first position, thus moving the tools away from the respective forging devices.
  • Said support frame is instead adapted to bring simultaneously, during loading step of the tools onto the forging devices, the tools 5 to the respective forging devices in the transition from said first position to said second position. Therefore, once the tools 5 are brought to the respective forging devices, in loading step, the actuation means can block the tools 5 to the respective forging device, or toolholder 1 , and the tool moving means can translate from said second position to said first position, thus releasing the tools 5 from the support frame.
  • the two-sided restraining means comprise, for each tool 5 , a pair of first plates or reaction plates 2 , 2 ′ arranged at opposite ends, along an axis Y parallel to axis Z, of a respective toolholder 1 of the forging device.
  • the two reaction plates 2 , 2 ′ of each pair are moved in the opposite direction to each other along said axis Y and make a shape restraint (prismatic restraint) between tool 5 and toolholder 1 .
  • At least one tie rod 3 , 3 ′ parallel to axis Y and crossing toolholder 1 , which is restrained at a first end thereof to the respective reaction plate 2 , 2 ′ ( FIGS. 1 a , 1 b , 1 c , 1 d ) while it is configured, at a second end thereof, to react on toolholder 1 by means of at least one elastic return element 4 .
  • Said at least one tie rod 3 , 3 ′ is provided, at said second end thereof, with a second plate or thrust plate 7 , 7 ′ for allowing the application of an external reaction force so as to release tool 5 by means of the aforesaid actuation means.
  • the at least one tie rod 3 , 3 ′ as described above passes through toolholder 1 , that is, crosses toolholder 1 by passing from one side to the other thereof.
  • the longitudinal extension of the tie rods 3 , 3 ′ which are parallel to axis Y, is indeed greater than the maximum longitudinal extension of toolholder 1 along said axis Y. Accordingly, both the first end and the second end of each tie rod 3 , 3 ′, and therefore both the reaction plate 2 , 2 ′ and the corresponding thrust plate 7 , 7 ′, are always outside toolholder 1 , at two opposite sides of the latter.
  • Each pair of tie rods 3 , 3 ′ is rigidly restrained to the corresponding reaction plate 2 , 2 ′.
  • Each reaction plate 2 , 2 ′ is free to move according to axis Y which is orthogonal to axis X along which the forging device, and therefore tool 5 , moves, when mounted thereon.
  • Each reaction plate 2 , 2 ′ is profiled so as to make a shape restraint between tool 5 and toolholder 1 .
  • the reaction plates 2 , 2 ′ have a substantially parallelepiped shape with projections 30 , 30 ′ shaped such as to be inserted into corresponding recesses 31 , 31 ′ of toolholder 1 and of tool 5 , respectively.
  • Such a restraint is applied by means of a nearing motion, along axis Y, of the reaction plates 2 , 2 ′ to axis X of the tool.
  • the elastic return elements 4 associated with the tie rods 3 , 3 ′ are preferably, but not only, made by means of springs.
  • the elastic return elements 4 can comprise, for example, gas springs, elastomers, or hydraulic servo-systems as well.
  • an axial guide of the tie rods 3 , 3 ′ and of the reaction plate 2 , 2 ′ can be provided along axis Y, preferably arranged on toolholder 1 .
  • this axial guide is made by means of the reference surfaces 8 ′, which are the outer surfaces of the casings 8 of the elastic return elements 4 .
  • a first reaction plate 2 and the thrust plate 7 ′ restrained to the tie rods 3 ′, which act on the second reaction plate 2 ′ opposite to the first reaction plate 2 ( FIGS. 1 a - 1 d ), rest simultaneously on such reference surfaces 8 ′, which do not necessarily have a circular section.
  • Each reaction plate 2 , 2 ′ indeed has two holes in which there are inserted the casings 8 of the elastic return elements 4 of the tie rods 3 , 3 ′ which act on the opposite reaction plate. Such holes define the sliding surface of the reaction plate 2 , 2 ′ on the reference surfaces 8 ′.
  • FIGS. 1 a and 1 b show a toolholder 1 and a tool 5 connected to one another by means of the reaction plates 2 , 2 ′.
  • FIGS. 1 c and 1 d show instead the reaction plates 2 , 2 ′ in the release position of tool 5 from toolholder 1 .
  • the simultaneous application of said force for each of the tools 5 of the radial forging machine occurs by means of auxiliary elements advantageously positioned on the tool moving means, and which can be actuated by the manipulator (not shown) of the radial forging machine.
  • the means for applying said force can be positioned on board the machine or on toolholder 1 .
  • the application of the release force can occur by means of at least one manipulator (not shown) of the radial forging machine, as in the preferred variant of the invention, or by means of any mechanical, hydraulic or electromechanical actuation system.
  • the support frame of the tool moving means comprises a first part 9 , which can rotate about axis Z, provided with a plurality of radial arms 9 ′ arranged radially with respect to axis Z.
  • Each housing 5 ′ for a respective tool 5 is defined by the space between two consecutive radial arms 9 ′.
  • blocking devices 10 fixed on said first part 9 of the support frame, for restraining the tools 5 , in the respective housings 5 ′, to said first part 9 .
  • the blocking devices 10 are provided at the free ends of the radial arms 9 ′.
  • the number of blocking devices 10 corresponds to the tools 5 .
  • each blocking device 10 comprises a base body 19 , defining a longitudinal axis Z′ parallel to axis Z, in which there are provided shaped profiles 18 on two opposite sides facing toward respective housings 5 ′.
  • Such shaped profiles 18 have a longitudinal development along axis Z′ and are preferably symmetrical with respect to a plane containing axis Z′ and axis Z.
  • the shape of said shaped profiles 18 is such as to be at least partly insertable in respective first cavities 26 ( FIG. 3 a ) provided on two adjacent tools 5 , in the transition of the moving means from said first position to said second position.
  • Each blocking device 10 further comprises an axial restraint mechanism, preferably arranged on the base body 19 . However, it is not excluded for such a mechanism to be in a different position on the first part 9 of the support frame, in relation to the manner in which it is used.
  • such an axial restraint mechanism comprises two cams 20 , which are preferably symmetrical with respect to a plane containing axis Z′ and axis Z, and having a lever arm 20 ′ shaped such as to be at least partly insertable in respective second cavities 25 provided on two adjacent tools 5 , in the transition of the moving means from said first position to said second position.
  • the actuation is carried out of the axial restraint of the tools 5 at the first part 9 of the support frame.
  • the lever arms 20 ′ of two cams 20 facing the same housing 5 ′ of tool 5 and belonging to two separate blocking devices 10 , are engaged in the two second cavities 25 of the same tool.
  • first cavities 26 and second cavities 25 are provided on tool 5 or on an interface element applied thereto.
  • the two cams 20 rotate about a respective pin 21 and the angular stroke thereof is limited at a first end by the base body 19 and at a second end by a mutual contact of the cams at an abutment surface 20 ′′ thereof.
  • the pins 21 have respective axes, both contained in a plane orthogonal to axis Z′.
  • a slider 22 adapted to move along axis Z′ by means of a thrust of preloading elastic means 23 , and resting by means of an end 22 ′ thereof, in the shape for example of a plate, on a surface of the two cams 20 .
  • This configuration determines a programmed yield of the aforesaid axial restraint mechanism.
  • the end positions between which the two cams 20 can oscillate are of static balance for the axial restraint mechanism.
  • An outer force capable of overcoming the thrust of the preloading elastic means 23 applied simultaneously to each of the lever arms 20 ′, allows the transition from the position corresponding to the operating situation of the free tool ( FIG. 4 c ) to the balance position corresponding to the operating situation of the blocked tool ( FIG. 4 d ).
  • the relative nearing motion between the tools 5 , which are positioned on the radial forging machine, and the support frame 9 , 11 , along the longitudinal axis Z of feeding of the product to be processed first allows inserting the two shaped profiles 18 of each blocking device 10 into the respective cavities 26 of two adjacent tools 5 and then the successive actuation of the axial blocking restraint by means of the lever arms 20 ′ of the cams 20 which are inserted into the respective cavities 25 of the tools. Therefore, in this variant each tool 5 is blocked by means of two lever arms 20 ′, each lever arm 20 ′ belonging to a respective cam 20 , each cam 20 being provided on a separate blocking device 10 . In the same manner, a relative distancing motion between the support frame 9 , 11 and the tools 5 allows the disengagement of the axial blocking restraint.
  • each blocking device 10 comprises a single cam, in place of only the two symmetrical cams 20 .
  • the single cam rotates about a pin and the angular stroke thereof is limited at a first end by the base body 19 and at second end by an abutment on the base body 19 .
  • the pin has the axis thereof contained in a plane orthogonal to axis Z′.
  • slider 22 moves along axis Z′, by means of a thrust of preloading elastic means 23 , and resting by means of an end 22 ′ thereof, in the shape for example of a plate, on a surface of the single cam.
  • This configuration determines a programmed yield of the aforesaid axial restraint mechanism.
  • the end positions between which the single cam can oscillate are of static balance for the axial restraint mechanism.
  • An outer force capable of overcoming the thrust of the preloading elastic means 23 applied simultaneously to the lever arm of the single cam of each blocking device 10 , allows the transition from the position corresponding to the operating situation of the free tools to the balance position corresponding to the operating situation of the blocked tools.
  • the relative nearing motion between the tools 5 , which are positioned on the radial forging machine, and the support frame 9 , 11 along the longitudinal axis Z of feeding of the product to be processed first allows inserting the two shaped profiles 18 of each blocking device 10 into the respective cavities 26 of two adjacent tools 5 and then the successive actuation of the axial blocking restraint by means of the lever arm of the single cams which is inserted into a respective cavity of a respective single tool. Therefore, in this variant each tool is blocked by the lever arm of a single cam. In the same manner, a relative distancing motion between the support frame 9 , 11 and the tools 5 allows the disengagement of the axial blocking restraint.
  • said actuation means are configured to simultaneously apply the external reaction force on both the thrust plates 7 , 7 ′ of each toolholder 1 or forging device so as to move the respective reaction plates 2 , 2 ′ and release together all tools 5 of the forging machine.
  • the actuation means are adapted to act exclusively along axis Z on both sides of said two-sided restraining means.
  • the actuation means are integrated on the tool moving means.
  • said actuation means comprise two reaction frames 12 , 13 arranged along axis Z, restrained to each other in rotation about said axis Z and adapted to move axially with respect to each other, simultaneously in opposite direction from one another.
  • the reaction frame 13 is arranged along axis Z at least partly at a first side of the support frame; while the reaction frame 12 is arranged along axis Z at a second side of the support frame, opposite to the first side.
  • reaction frame 13 and the reaction frame 12 can simultaneously apply the external reaction force on both sides of said two-sided restraining means, that is on both the second plates 7 , 7 ′ of each toolholder 1 , arranged along an axis Y parallel to axis Z, once the moving means, and therefore the support frame, are in the position at least partly inside the space delimited by the forging devices.
  • the support frame of the moving means comprises also a second part 11 , adjacent and restrained axially to the first part 9 but free to rotate with respect to the first part 9 , about axis Z, integrally to both the reaction frames 12 , 13 .
  • This second part 11 supports the two reaction frames 12 , 13 which, as said above, can move simultaneously along axis Z in opposite direction from one another.
  • the second part 11 of the support frame is provided with an appendage 11 ′ for moving it, for example by means of grasp of grippers of a manipulator (not shown) of the forging machine or by means of other suitable actuation mean.
  • the second part 11 of the support frame is provided with a motion reversal device.
  • Such a motion reversal device comprises one or more pairs of pinions 15 , housed on said second part 11 of the support frame and having the axes of rotation parallel to each other and orthogonal to a plane passing through axis Z.
  • Each pair of pinions 15 meshes on two racks 16 , 17 which are integral to the reaction frame 12 and to the reaction frame 13 , respectively.
  • reaction frames 12 , 13 are guided axially and supported radially by means of low friction supports housed on the first part 9 and on the second part 11 of the support frame of the tools 5 .
  • Prismatic restraints of any type make the two reaction frames 12 , 13 and the second part 11 itself of the support frame integral to the rotation.
  • the end of the reaction frame 13 proximal to the second part 11 of the support frame, is provided with at least two projections 14 inserted into corresponding slots 14 ′ of the second part 11 , or vice versa.
  • there are provided two projections 14 which are diametrically opposite to each other, each projection 14 being provided between the two racks 17 , they also being diametrically opposite to each other.
  • the two slots 14 ′ are diametrically opposite and are each provided between the two pairs of pinions 15 , which are also diametrically opposite to each other.
  • the end of the second part 11 is provided with at least two projections 24 inserted into corresponding recesses 24 ′ provided on the inner surface of the reaction frame 12 , or vice versa.
  • the motion is transmitted by means of an appendage 12 ′′, from the racks 16 , which are integral to the reaction frame 12 , to the pinions 15 , and from the pinions 15 to the racks 17 , which are integral to the reaction frame 13 . Therefore, an equal movement is obtained of the reaction frame 13 in direction opposite to the one of the reaction frame 12 .
  • FIGS. 2, 2 a , 5 , 6 a e 6 b An advantageous configuration, shown in FIGS. 2, 2 a , 5 , 6 a e 6 b , provides for both the reaction frames 12 , 13 to be provided with respective radial arms 32 , 33 , in number equal to the number of tools 5 , configured to push with an end thereof on both sides of the two-sided restraining means, that is on the respective second plates 7 , 7 ′.
  • the radial arms 32 are arranged and move mirroring the radial arms 33 .
  • appendages 12 ′ 13 ′ are preferably provided facing toward the first part 9 of the support frame, which when the reaction frames are neared to each other, act directly on the thrust plates 7 , 7 ′ to release the tools 5 in unloading step, or to keep the reaction plates 2 , 2 ′ open before the loading of the tools 5 (FIG. lc) in the loading step.
  • the two reaction frames 12 , 13 are initially arranged, both in loading step and in unloading step, with the radial arms 32 , 33 aligned at the corresponding passage compartments between the toolholders 1 of the forging devices (in loading step), or between the tools 5 fixed to the toolholders 1 (in unloading step).
  • the support frame it is possible for the support frame to transition from the first position outside the forging devices ( FIG. 5 ) to a second position inside the space delimited by the forging devices ( FIG. 6 a ), and vice versa.
  • the moving means being provided with the tools 5 to be loaded, which are arranged in the housings 5 ′ , and are positioned outside the forging devices, which are in their change tool configuration, with the radial arms 32 , 33 of the reaction frames 12 , 13 aligned at the passage compartments between the forging devices;

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
US15/526,297 2014-11-12 2015-11-12 Radial forging machine Abandoned US20170320126A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI20141950 2014-11-12
ITMI2014A001950 2014-11-12
PCT/IB2015/058734 WO2016075643A1 (fr) 2014-11-12 2015-11-12 Machine de forgeage radial

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US20170320126A1 true US20170320126A1 (en) 2017-11-09

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US15/526,297 Abandoned US20170320126A1 (en) 2014-11-12 2015-11-12 Radial forging machine

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US (1) US20170320126A1 (fr)
EP (1) EP3218129B1 (fr)
CN (1) CN107206466B (fr)
RU (1) RU2663673C1 (fr)
WO (1) WO2016075643A1 (fr)

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Publication number Priority date Publication date Assignee Title
US11203053B2 (en) 2019-10-03 2021-12-21 Shyam Newar Peripheral combination hydraulic press to forge and method of manufacturing thereof
CN115178698A (zh) * 2022-09-14 2022-10-14 江苏天隆铸锻有限公司 一种锻件锻造用成型设备及其锻造工艺

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110434264B (zh) * 2019-09-12 2020-11-10 哈尔滨工业大学 一种晶须增强铝基复合材料的约束多向模锻方法
WO2026006862A1 (fr) 2024-07-02 2026-01-08 Gfm Gmbh Machine de forgeage

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CN107206466B (zh) 2019-04-23
CN107206466A (zh) 2017-09-26
EP3218129B1 (fr) 2019-07-03
RU2663673C1 (ru) 2018-08-08
WO2016075643A1 (fr) 2016-05-19

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