EP0653258A1 - Machine à forger - Google Patents

Machine à forger Download PDF

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Publication number
EP0653258A1
EP0653258A1 EP93120368A EP93120368A EP0653258A1 EP 0653258 A1 EP0653258 A1 EP 0653258A1 EP 93120368 A EP93120368 A EP 93120368A EP 93120368 A EP93120368 A EP 93120368A EP 0653258 A1 EP0653258 A1 EP 0653258A1
Authority
EP
European Patent Office
Prior art keywords
stroke
tools
drives
actuating devices
plungers
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.)
Granted
Application number
EP93120368A
Other languages
German (de)
English (en)
Other versions
EP0653258B1 (fr
Inventor
Peter Schubert
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.)
SMS Hasenclever GmbH
SMS Hasenclever Maschinenfabrik GmbH
Original Assignee
SMS Hasenclever GmbH
SMS Hasenclever Maschinenfabrik 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.)
Filing date
Publication date
Application filed by SMS Hasenclever GmbH, SMS Hasenclever Maschinenfabrik GmbH filed Critical SMS Hasenclever GmbH
Priority to EP93120368A priority Critical patent/EP0653258B1/fr
Priority to AT93120368T priority patent/ATE122942T1/de
Priority to DE59300223T priority patent/DE59300223D1/de
Publication of EP0653258A1 publication Critical patent/EP0653258A1/fr
Application granted granted Critical
Publication of EP0653258B1 publication Critical patent/EP0653258B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B7/00—Presses characterised by a particular arrangement of the pressing members
    • B30B7/04—Presses characterised by a particular arrangement of the pressing members wherein pressing is effected in different directions simultaneously or in turn

Definitions

  • Forging workpieces emphasized along the longitudinal axis are used forging machines which are provided with three or more in one plane, in particular with four x-shaped staggered by 90 ° to each other, which act radially on the workpiece guided longitudinally in the system axis and are equipped with tools It is of structural advantage if the plungers guided in the machine frame are designed at their ends facing away from the tools as cylinders of piston-cylinder units which are open to the outside or are connected to them.
  • the tools are to form a closed caliber in adjustable stroke end positions, for which purpose the tools are adjustable and ascertainable in their common plane by means of tool supports transversely to the plungers by adjusting devices acting on the supports, depending on the setting of the stroke end position of the plungers, that they can be operated with their the part of their working surface that exceeds the caliber is covered by a side surface of the adjacent tool.
  • the forging machine is to be used for free-form fine forging, it is advisable to dimension the piston-cylinder units according to the working stroke of the ram in order to minimize the compression volume, which is an essential prerequisite for rapid stroke operation.
  • the stroke position through which the caliber defined by the tools is determined, is adjustable by the machine frame, the Pistons of the piston-cylinder units adjustable crossbeams.
  • the piston-cylinder units can be dimensioned for the entire ram stroke, so that fixed crossbeams can be provided to support the pistons, the stroke end positions of the rams being adjustable by adjustable or exchangeable stops.
  • the invention relates to forging machines of the type described above and in particular to the design of actuating devices acting on the tool supports for setting the tools relative to the plungers in accordance with the stroke end position of the plungers.
  • the invention is based on actuating devices which are provided with drive devices lying on the outside next to the tappets, as are known from EP 0 228 030 B1, FIGS. 7, 8 and 9, and EP 0 549 825 B1.
  • the known actuators have the disadvantage that the connection of the actuators with their drives must be provided with the tappet stroke compensating couplings or gearbox connections, which are used for the overall stroke of the tappets with frame-fixed connection of the drives (EP 0 549 825 B1) or at least for the Working stroke of the plunger when connecting the drives to the crossbars for stroke position adjustment (EP 0 228 030 B1, Fig. 7, 8 and 9) must be dimensioned.
  • the forging machine consists of a frame 1, which leads in a plane perpendicular to the system axis S, four plungers 2, which are arranged in an X-shaped manner in the plane and are movable radially to the system axis S.
  • the plungers 2 are equipped with tools 3 at their ends facing the system axis S.
  • the tappets 2 are designed as cylinders 4 open to the outside, ie provided with a cylinder bore 4b, the parts of the tappets forming the cylinders 4 being able to form separate parts which are detachably connected to the tappets 2.
  • Plungers 5 with glands 6 and seals 7 are inserted into the cylinders 4.
  • the pistons 5 are supported on crossbeams 8, which are connected by tension rods 9 to the frame with the interposition of support blocks 11 and pressure columns 10 under prestress. Pressure medium can be supplied or removed via the holes 12 in the crossbeams 8 and the holes 13 in the piston 5.
  • the cylinders 4 are provided with flanges 14, which are each provided with two projections 14a. Piston-cylinder units, the cylinders 15 of which are supported on the frame 1, effect the retraction of the tappets 2 with the tools 3 with their pistons 16, which act on the projections 14a and thus on the cylinders 4 and tappets 2.
  • the tools 3 should form practically closed calibers in the stroke end positions of the plunger 2.
  • the tools 3 are fastened to supports 17 and can be moved with them in the working plane of the tools 3 transversely to the plungers 2 on end plates 18 of the plunger 2, the displacement taking place to such an extent that a Collision with the neighboring tool 3 in its stroke end position is excluded.
  • the transverse displacement of a tool 3 takes place as a function of the setting of the stroke end position of the neighboring tool 3, which with its unused working width covers the facing side surface of the former tool 3.
  • the supports 17 are transversely displaced with the tools 3 by an angle lever 19, which is rotatably mounted about a bolt 20 in the end plate 18 of the plunger 2, via a tab 21 with the support 17 connected and is pivotable by a linear stroke drive 23 via a pull / push linkage 22.
  • the linear stroke drive 23 is connected to the tappet 2 via its cylinder 4 and supported on its flange 14.
  • the support 17 is connected to the end plate 18 of the plunger 2 by means of clamping and locking devices of known design, not shown, which are released with tool 3 for the transverse displacement of the support 17.
  • the linear stroke drive is formed from two piston-cylinder units 24a and 24b which are connected to one another on the end face, the piston rod of the piston-cylinder unit 24a being connected to the flange 14 via a bearing block 25, while the piston rod of the Piston-cylinder unit 24b is connected in an extension to the push / pull linkage 22.
  • the single or double stroke of the push / pull linkage 22 results and accordingly the support 17 with the tool 3 is moved into a first or second position of the tool 3 shown in broken lines .
  • the plunger 2 can be brought into three defined stroke end positions for the three positions of the tool 3.
  • a stop block 26 is fastened to the frame 1 on both sides of the tappet 2 by way of the projections 14b of the tappet 2 and the cylinder 4 connected to it, with its flange 14.
  • These stop blocks 26 define the stroke end position of the tappet 2 with tool 3, in which they reach the smallest distance from the system axis S.
  • Other stroke end positions of the plunger 2 with tool 3 are determined by spacer plates 27 and 28 which can be pivoted about the columns 10 of piston-cylinder units 29 in positions above the stop blocks 26 by way of the projections 14b.
  • the linear stroke drive 23 is designed as a helical gear, for which purpose the linkage 22 is provided with a threaded shaft 30 which engages in a threaded sleeve 31.
  • the threaded sleeve 31 is provided with a worm wheel rim 32 and is mounted in a housing 34 with the associated worm 33 and a drive motor (not shown), the housing 34 being supported on the flange 14 of the cylinder 4 forming part of the tappet 2.
  • Threaded spindles 35 are provided as stops, each of which can be rotated with its threaded shaft in a nut piece 36 fastened to the frame 1.
  • the spindle is rotated by a worm wheel 37 with a worm 38 and a motor (not shown).
  • the worm wheel 37 with its worm 38 is mounted in the frame 1.
  • the threaded spindle 35 engages with a square shaft 39 in a corresponding bore in the worm wheel 37.
  • FIG. 4 shows the exemplary embodiment of a forging machine improved in accordance with the invention in accordance with EP 0 549 825 B1, FIGS. 1 to 6.
  • the plungers 42 - one of the four plungers 42 is shown in the cutout that FIG. 4 shows - guided in a frame 41 radially to the system axis of the forging machine.
  • Each plunger 42 is provided on the end face with an end plate 58 which serves to guide a support 57 which is adjustable transversely to the plunger 42 in the working plane (perpendicular to the image plane in FIG. 4) and carries one of the tools 43.
  • the plunger 42 is provided with a cylinder bore 44b which receives a plunger 45 with a stuffing box 46 and a sealing ring 47, the cylinder bore 44b and the piston 45 exclusively for the working stroke of the plunger 42 are dimensioned.
  • the piston 45 is supported by a crossmember 48, which are connected to the frame 41 by anchors 49, the anchors 49 being provided at their free ends with threads on which the crossmember 48 can be adjusted in a known manner by a drive 51 via nuts 50 and so that the stroke position of the plunger 42 is adjustable.
  • the working stroke of the plunger 42 relative to the piston 45 and the selected position of the crossmember 48 together result in the stroke end position of the plunger 42 with the tool 43.
  • the support 57 carrying the tool 43 is clamped against the end plate 58 of the plunger 42 by a clamping device 52.
  • Bars 53a connected to the face plate 58 and bars 53b connected to the support 57 with fine toothing on the opposing surfaces are provided for locking the support 57 with respect to the face plate 58.
  • the strips 53b connected to the support 57 are also provided with lateral toothings, into which pinions 59 engage, which in turn engage with pinions 60 and are mounted with these in gear housings 61 which are connected to the tappet 42.
  • the pinions 59 and 60 are driven by shafts 62 with which the pinions 60 are connected in a rotationally fixed manner.
  • Rotary drives 63 are provided for rotating the shafts 62 and are fastened to a flange 54 of the tappet 42.
  • a ring 64 is provided to limit the stroke of the tappet 42 and at the same time to support tappet retractions, not shown, and is connected to the cross member 48.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Disintegrating Or Milling (AREA)
EP93120368A 1993-12-16 1993-12-16 Machine à forger Expired - Lifetime EP0653258B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP93120368A EP0653258B1 (fr) 1993-12-16 1993-12-16 Machine à forger
AT93120368T ATE122942T1 (de) 1993-12-16 1993-12-16 Schmiedemaschine.
DE59300223T DE59300223D1 (de) 1993-12-16 1993-12-16 Schmiedemaschine.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93120368A EP0653258B1 (fr) 1993-12-16 1993-12-16 Machine à forger

Publications (2)

Publication Number Publication Date
EP0653258A1 true EP0653258A1 (fr) 1995-05-17
EP0653258B1 EP0653258B1 (fr) 1995-05-24

Family

ID=8213501

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93120368A Expired - Lifetime EP0653258B1 (fr) 1993-12-16 1993-12-16 Machine à forger

Country Status (3)

Country Link
EP (1) EP0653258B1 (fr)
AT (1) ATE122942T1 (fr)
DE (1) DE59300223D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112936950A (zh) * 2021-01-27 2021-06-11 山东惠丰油脂股份有限公司 一种环保型豆类油脂加工冷藏压榨装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1908362A1 (de) * 1969-02-20 1970-09-10 Sack Gmbh Maschf Schmiedemaschine mit verstellbaren Schmiedesaetteln
FR2287289A1 (fr) * 1974-10-09 1976-05-07 Gfm Fertigungstechnik Machine a forger munie de deux porte-outil travaillant en opposition
EP0228030A2 (fr) * 1986-01-02 1987-07-08 SMS Hasenclever GmbH Machine de forgeage
EP0549825A1 (fr) * 1991-12-30 1993-07-07 SMS Hasenclever GmbH Machine à forger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1908362A1 (de) * 1969-02-20 1970-09-10 Sack Gmbh Maschf Schmiedemaschine mit verstellbaren Schmiedesaetteln
FR2287289A1 (fr) * 1974-10-09 1976-05-07 Gfm Fertigungstechnik Machine a forger munie de deux porte-outil travaillant en opposition
EP0228030A2 (fr) * 1986-01-02 1987-07-08 SMS Hasenclever GmbH Machine de forgeage
EP0549825A1 (fr) * 1991-12-30 1993-07-07 SMS Hasenclever GmbH Machine à forger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112936950A (zh) * 2021-01-27 2021-06-11 山东惠丰油脂股份有限公司 一种环保型豆类油脂加工冷藏压榨装置

Also Published As

Publication number Publication date
EP0653258B1 (fr) 1995-05-24
DE59300223D1 (de) 1995-07-27
ATE122942T1 (de) 1995-06-15

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