EP0829319A2 - Machine à forger - Google Patents

Machine à forger Download PDF

Info

Publication number
EP0829319A2
EP0829319A2 EP97890186A EP97890186A EP0829319A2 EP 0829319 A2 EP0829319 A2 EP 0829319A2 EP 97890186 A EP97890186 A EP 97890186A EP 97890186 A EP97890186 A EP 97890186A EP 0829319 A2 EP0829319 A2 EP 0829319A2
Authority
EP
European Patent Office
Prior art keywords
forging
housing
machine according
stroke position
forging 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.)
Granted
Application number
EP97890186A
Other languages
German (de)
English (en)
Other versions
EP0829319A3 (fr
EP0829319B1 (fr
Inventor
Alfred Ing. Seeber
Rupert Ing. Wieser
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.)
GFM Holding AG
Original Assignee
GFM Holding AG
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 GFM Holding AG filed Critical GFM Holding AG
Publication of EP0829319A2 publication Critical patent/EP0829319A2/fr
Publication of EP0829319A3 publication Critical patent/EP0829319A3/fr
Application granted granted Critical
Publication of EP0829319B1 publication Critical patent/EP0829319B1/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
    • B21J9/00—Forging presses
    • B21J9/10—Drives for forging presses
    • B21J9/18—Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
    • 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

  • the invention relates to a forging machine with at least two against each other acting, longitudinally guided forging dies in a machine frame, the each have their own stroke drives and stroke position adjustment devices.
  • the invention is therefore based on the object of a forging machine at the outset to create the type described, which is comparatively inexpensive, compact and robust construction due to its great adaptability to different Forging tasks.
  • each forging stamp including the longitudinal guide and stroke position adjustment device and the associated stroke drive into one Forging unit are combined and arranged in their own housing, that swivels or slides in the machine frame and turns into Swivel or slide adjustment is supported on an actuator.
  • These forging units enable a rational production of the forging machine by installing the prefabricated units in a fairly simple machine frame and the forging units own lifting drives can be expediently via common drive devices from drive connections and motors synchronously without difficulty operate.
  • the forging units allow for their adjustability the adaptation of the forging machine to a wide range of forging, whereby there is a short, direct flow of force within each forging unit Forging process comes as there is no articulated connection between the drive and Forging stamp required.
  • the adjustment of the forging units can be used for this targeted, either a specific setting of the forging tool or to specify the forging direction or the forging stroke of the punch Transverse movement superimposed, for example, a controllable tangential rolling effect to achieve during forging, with the actuator accordingly Swiveling or moving the forging units between or during the Forging strokes. Because in every forging unit the stroke drive and also the Stroke position adjustment device for the associated forging punch are integrated, can make certain changes in stroke frequency, stroke sequence and of course depending on the forging process, what the Carrying out various forging works and processes.
  • the swivel axis or the sliding direction of the housing can be changed run perpendicular or parallel or at an angle to the forging axis so that for example, walking with a vertical axis or parallel direction or adapting the forging movement to continuous clamping head movements u. Like. can be achieved.
  • An angular course in turn allows an adjustment the stamp movement to a continuous movement or a rotary movement of the Workpiece.
  • the pivot axis or sliding direction of the housing runs
  • the punch movement can not only run parallel or perpendicular to the forging axis be matched to a workpiece rotation, but it can be adjusted by suitable Angle of attack or displacement also include a forging with interlocking Carry out hammering with perfect forging conditions and / or also create a deliberate tangential rolling effect.
  • the pivot axis of the housing coincides with the axis of a drive shaft of the linear actuator together, simple power transmission results in a simple design Support ratios. It is possible to mount the drive shaft in the Housing and common bearing bushes for storing the housing in the machine frame insert the inside of the eccentric shaft and outside in suitable storage locations of the wall plates of the machine frame.
  • a particularly expedient construction of the invention results when as the drive shaft an eccentric shaft is provided with a sliding block rotatably seated on the eccentric is that cooperates mechanically with the forging punch designed as a connecting rod, the forging stamp consisting of two parts, one on the sliding block side Upper part and a lower part on the tool side, which lower part consists of the Stroke adjustment device is arranged axially adjustable relative to the upper part.
  • the forging unit an eccentrically driven forged connecting rod with all of its Advantages are used, whereby the connection between sliding block and forging stamp a common positive connection by means of a link guide, but also a purely frictional connection, as illustrated for example in EP 0 667 197 A. is selected.
  • the result is a very compact, space-saving Construction of the linear actuator, which is ideal for housing in the housing Forging unit is suitable. Only the two need to adjust the stroke position Stamp parts to be adjusted relative to each other, which is achieved in different ways can be.
  • a purely mechanical construction results if the housing is guided in a rotationally fixed manner
  • the lower part is screw-connected to the upper part, which is rotatably guided in the housing and the stroke position adjustment device is a rotary drive assigned to the upper part comprises a gearbox with a non-rotatable but axially displaceable on the upper part seated and rotatable in the housing, but axially immovable mounted ring gear has, whereby a screwing of the upper and lower part even during Forging process involves a stroke position adjustment.
  • a mechanical-hydraulic solution results from the fact that the non-positive Connection of the upper part and lower part of the lower part with the interposition of a hydraulic cushion can be pressurized against the upper part by means of a compression spring and the Hydraulic cushion with a hydraulic medium supply device as a stroke position adjustment device is in line connection.
  • the hydraulic cushion influence the axial distance between the upper and lower part and thus the Make the necessary stroke position adjustment.
  • the housing has extremely short cable connections and simple hydraulic systems can be used.
  • Compression spring in particular a hydraulic compression spring, at the same time for a corresponding one non-positive connection between the upper part and lower part as if necessary between top and sliding block.
  • the upper part and Lower part of the forging punch in a cylinder inserted in the housing of both Sides coaxially and the hydraulic cushion is inside the cylinder between the upper and bottom part formed.
  • a forging unit with a hydraulic one is created in the smallest of spaces Stroke adjustment device, which in addition to the stroke position adjustment too a simple overload protection by overload valves u.
  • the hydraulic cushion allowed to install.
  • a forging machine 1 has four forging units used in a machine frame 2 3 with counteracting and forging tools 4 carrying Forging punches 5, the forging units 3 being offset from one another by 90 ° are arranged between end wall panels 6 of the machine frame 2 and determine a common forging level.
  • Each forging unit 3 consists of a housing 7, the longitudinal guides 8 for the Forging stamp 5 and in which also a forging stamp 5 assigned Lift drive 9 and a stroke position adjustment device 10 are accommodated.
  • the housing 7 is pivotable in the end wall plates 6 of the machine frame 2 stored and in a manner not shown, also on the machine frame 2 supporting actuator 11 articulated for swivel adjustment.
  • the pivot axis A of the housing 7 coincides with the axis of an eccentric shaft 12 of the linear drive 9 together, so that the entire forging unit 3 and thus also the forging stamp 5 pivoted in its direction of action about the eccentric shaft axis and thus the effective direction can be changed relative to the forging axis S, both to set the direction of action for the forging process and to overlay the Forging stroke with a swivel movement.
  • the eccentric shaft 12 of the linear drive 9 is mounted in bearing bushes 13, which at the same time serve to store the housing 7 and in the corresponding storage locations 14 of the end wall panels 6 are used. Is mounted on the eccentric 15 of the eccentric shaft 12 rotatable a sliding block 16, which rotates the eccentric shaft in one stroke allowed to convert.
  • the eccentric shaft 12 is only indicated, one Flywheel receiving drive gear 17 connected to synchronous Rotary drive of all forging units in a shared drive device only indicated G of the forging machine 1 is involved.
  • the forging punch 5 consists of a sliding block side Upper part and a lower part on the tool side, the lower part via the stroke position adjustment device 10 is axially adjustable relative to the upper part.
  • the forging punch 5 one with its end face 18 as a sliding surface with the sliding block 16 non-positively cooperating upper part 19 and a lower part screwable into the upper part 19 20, with the upper part 19 rotatable in the housing 7 and the lower part 20 non-rotatable are led.
  • the stroke position adjustment device 10 comprises a toothed ring 21, which sits on the rotatable upper stamp part 19 in a rotationally fixed but displaceable manner and with an actuator 22 is in drive connection, so that a rotation of the ring gear 21 a stroke position adjustment of the lower part caused by the screw adjustment 20 brings with it.
  • Compression springs 23 oppose the forging punch 5 to the direction of action, so that the frictional connection between sliding block 16 and Stamp 5 is ensured.
  • upper part 24 and lower part 25 of the Forging punch 5 non-positively with the interposition of a hydraulic cushion 26 with each other connected, the lower part 25 in opposite directions via a hydraulic compression spring 27 is pressurized to the effective direction of the stamp 5, on the one hand the To ensure frictional connection between the forging stamp parts 24, 25 and on the other hand for the non-positive connection between sliding block 16 and the associated one To provide sliding surface 28 of the upper part 24.
  • the forging unit 3 can Actuator 11 can be pivoted about the pivot axis A in order, as indicated in FIG. 1, radially forged or, as indicated in Fig. 3, by a corresponding Swivel adjustment of the forging stamp 5 with radially offset forging interlocking forging tools 4 or to allow Forging stroke to overlay a rolling movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Control Of Presses (AREA)
  • Press Drives And Press Lines (AREA)
EP97890186A 1996-09-17 1997-09-16 Machine à forger Expired - Lifetime EP0829319B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT163996 1996-09-17
AT0163996A AT404441B (de) 1996-09-17 1996-09-17 Schmiedemaschine
AT1639/96 1996-09-17

Publications (3)

Publication Number Publication Date
EP0829319A2 true EP0829319A2 (fr) 1998-03-18
EP0829319A3 EP0829319A3 (fr) 2000-06-07
EP0829319B1 EP0829319B1 (fr) 2002-07-17

Family

ID=3517769

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97890186A Expired - Lifetime EP0829319B1 (fr) 1996-09-17 1997-09-16 Machine à forger

Country Status (5)

Country Link
US (1) US5894755A (fr)
EP (1) EP0829319B1 (fr)
JP (1) JP3398023B2 (fr)
AT (1) AT404441B (fr)
DE (1) DE59707715D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0993888A2 (fr) * 1998-10-13 2000-04-19 GFM Beteiligungs- und Management GmbH & Co KG Machine à forger
EP3104992B1 (fr) 2014-02-10 2018-04-04 Danieli & C. Officine Meccaniche S.p.A. Machine et procédé de forgeage
CN112589032A (zh) * 2020-11-19 2021-04-02 宁波职业技术学院 一种汽车弯折臂的卡件锻造设备

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407618B (de) * 1998-12-07 2001-05-25 Gfm Beteiligungs & Man Gmbh Rundknetmaschine
JP4170661B2 (ja) * 2002-04-26 2008-10-22 アイダエンジニアリング株式会社 機械プレス
AT10310U1 (de) * 2007-10-01 2009-01-15 Hirsch Armbaender Schliesse für ein armband
US20120222463A1 (en) * 2011-03-04 2012-09-06 Kennametal Inc. Method for manufacturing an insert pocket of a cutter body
CN102728757B (zh) * 2012-05-30 2014-08-20 上海交通大学 一种用于径向锻造机上成形复杂长轴类锻件的锤锻装置

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
EP0236589A2 (fr) * 1986-03-08 1987-09-16 Pahnke Engineering GmbH & Co. KG Machine de forgeage hydraulique
US4796456A (en) * 1986-01-02 1989-01-10 Sms Hasenclever Maschinenfabrik Gmbh Forging machine
US5205148A (en) * 1990-11-03 1993-04-27 Sms Schloemann-Siemag Aktiengesellschaft Upsetting press for reducing the width of slabs in hot-rolled wide strip breaking-down trains

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT235113B (de) * 1963-05-20 1964-08-10 Ges Fertigungstechnik & Maschb Schmiedemaschine
AT276009B (de) * 1968-05-03 1969-11-10 Ges Fertigungstechnik & Maschb Vorrichtung zum Durchlaufstreckschmieden
DE2159461C3 (de) * 1971-12-01 1975-07-17 Maschinenfabrik Sack Gmbh, 4000 Duesseldorf Schmiedemaschine
DE2207717C3 (de) * 1972-02-18 1975-10-16 Maschinenfabrik Sack Gmbh, 4000 Duesseldorf Steuereinrichtung mit hydraulischer Gleichlaufsteuerung für Schmiedemaschinen
US3837209A (en) * 1972-12-04 1974-09-24 R Siegfried Forging machine
AT325922B (de) * 1974-04-01 1975-11-10 Gfm Fertigungstechnik Schmiedemaschine zum rundschmieden strang- bzw. stangenförmiger werkstücke
US4148209A (en) * 1978-04-07 1979-04-10 Kawasaki Yukoh Kabushiki Kaisha Forging press
SU889253A1 (ru) * 1980-04-18 1981-12-15 Экспериментальный научно-исследовательский институт кузнечно-прессового машиностроения Радиально-обжимна машина
DE3800220C1 (fr) * 1988-01-07 1989-02-02 Pahnke Engineering Gmbh & Co Kg, 4000 Duesseldorf, De
EP0667197B1 (fr) * 1994-01-18 1997-10-08 GFM Gesellschaft für Fertigungstechnik und Maschinenbau Aktiengesellschaft 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
US4796456A (en) * 1986-01-02 1989-01-10 Sms Hasenclever Maschinenfabrik Gmbh Forging machine
EP0236589A2 (fr) * 1986-03-08 1987-09-16 Pahnke Engineering GmbH & Co. KG Machine de forgeage hydraulique
US5205148A (en) * 1990-11-03 1993-04-27 Sms Schloemann-Siemag Aktiengesellschaft Upsetting press for reducing the width of slabs in hot-rolled wide strip breaking-down trains

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0993888A2 (fr) * 1998-10-13 2000-04-19 GFM Beteiligungs- und Management GmbH & Co KG Machine à forger
EP0993888A3 (fr) * 1998-10-13 2001-05-30 GFM Beteiligungs- und Management GmbH & Co KG Machine à forger
EP3104992B1 (fr) 2014-02-10 2018-04-04 Danieli & C. Officine Meccaniche S.p.A. Machine et procédé de forgeage
CN112589032A (zh) * 2020-11-19 2021-04-02 宁波职业技术学院 一种汽车弯折臂的卡件锻造设备
CN112589032B (zh) * 2020-11-19 2022-08-23 宁波职业技术学院 一种汽车弯折臂的卡件锻造设备

Also Published As

Publication number Publication date
US5894755A (en) 1999-04-20
JP3398023B2 (ja) 2003-04-21
ATA163996A (de) 1998-04-15
JPH10113741A (ja) 1998-05-06
AT404441B (de) 1998-11-25
DE59707715D1 (de) 2002-08-22
EP0829319A3 (fr) 2000-06-07
EP0829319B1 (fr) 2002-07-17

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