EP0191397B1 - Presse transfert - Google Patents

Presse transfert Download PDF

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Publication number
EP0191397B1
EP0191397B1 EP86101398A EP86101398A EP0191397B1 EP 0191397 B1 EP0191397 B1 EP 0191397B1 EP 86101398 A EP86101398 A EP 86101398A EP 86101398 A EP86101398 A EP 86101398A EP 0191397 B1 EP0191397 B1 EP 0191397B1
Authority
EP
European Patent Office
Prior art keywords
crosshead
rack
bolt
effective connection
region
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.)
Expired - Lifetime
Application number
EP86101398A
Other languages
German (de)
English (en)
Other versions
EP0191397A2 (fr
EP0191397A3 (en
Inventor
Herbert Höhn
Kurt Strommer
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.)
L Schuler GmbH
Original Assignee
L Schuler 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 L Schuler GmbH filed Critical L Schuler GmbH
Publication of EP0191397A2 publication Critical patent/EP0191397A2/fr
Publication of EP0191397A3 publication Critical patent/EP0191397A3/de
Application granted granted Critical
Publication of EP0191397B1 publication Critical patent/EP0191397B1/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
    • 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
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
    • B21D43/057—Devices for exchanging transfer bars or grippers; Idle stages, e.g. exchangeable

Definitions

  • the invention relates to a device for intermediate storage of workpieces in empty stages of transfer presses, with gripping and holding devices arranged in the region of empty stages for support elements detachably attached to sliding tables or on tools carried by them and to be brought into the area of the next empty stage.
  • step presses transfer presses, large part steps and the like.
  • Presses in which large workpieces are processed in stages arranged one behind the other, have so-called empty stages between the press stands, in which no forming takes place.
  • the empty stage must have a clipboard which corresponds to the shape of the underside of the workpieces to be supported in the support area.
  • clipboards adapted to the new workpiece must be set up.
  • the device consists of a gripping and holding device arranged in the area of an empty stage. With the aid of racks mounted on the gripping and holding device, movable in the direction of transfer and designed as a gripper, supporting elements which can be moved with the sliding table can be grasped and implemented in the area of the empty stage.
  • the position of the support elements in the empty position, support position, in relation to the transport direction of the workpieces, corresponds to the position of the support elements on the sliding table or on the tool.
  • a clipboard can be set up for only one workpiece. The area of the space between the stands and the area of a Waste box cannot be bridged. The empty level must not exceed a width specified by the transfer movement.
  • each gripping and holding device is assigned receptacles which can be acted upon and which, on the one hand, can be operatively connected to a supporting element and, on the other hand, are operatively connected to a rotary drive.
  • Advantages of the invention include in the fact that existing clipboard devices can be retrofitted, that the device is independent of the workpiece and serves to automate the press, since the device is absolutely reliable.
  • the support elements can be turned automatically without any additional adjusting means.
  • Shorter transfer movements can be set up for two workpieces with the same number of support elements in the transport direction of the workpieces one behind the other.
  • the empty stage of a press is represented by a lock box 1 in the area of press stands 2.
  • a bracket 3 with support arms 4 for mounting two toothed racks 7 aligned in the transport direction of the workpieces - arrows 16.
  • the toothed racks 7 are stored in support bearings 6.
  • An actuating motor 8 is fastened on the press side, possibly on the bracket 3, which acts rotatably on a shaft 11 via drive pulleys 10 and drive belts 9.
  • the Shaft 11 is mounted in both support arms 4 and has gear wheels 12 which engage in the same toothing on the underside of the toothed racks 7.
  • the support arms 4 are also rigidly connected to one another by a contact strip 20.
  • the end parts 17 of the toothed racks 7 are, as is still to be described in relation to FIG. 3, designed to receive a crossbar 13 which is removably mounted on brackets 23 on a sliding table 21, possibly on a tool 22 carried by the sliding table 21.
  • the sliding table 21 is interchangeable with solvent 24.
  • the traverse 13 is drawn on the racks 7 with full lines, on the tool 22 in dash-dotted lines.
  • this carries a locating pin 38 in a pivot bearing 26.
  • a support 25 adapted to the shape of the supporting element 14 is attached.
  • a torsion spring 18 is stretched out between the upper region of the locating pin 38 and the crossmember 13. Locating pin 38, support 25 and torsion spring 18 form the rotatable mount 15.
  • racks 28 are loosely inserted in the crossmember 13 in the rotating area of the mounting bolts 38, which extend in the transport direction 16 and interact with teeth 27 on the mounting bolts 38.
  • the toothed racks 28 are placed against the contact strip 20 by means of rotary lugs, stops 19.
  • the energy stored in the torsion spring 18 during the movement of the traverse 13 into the empty position is released, as a result of which the locating pin 38 with the support 25 and the support element 14 is adjusted such that the support element 14 aligns itself in a direction transverse to the transport direction 16 of the workpieces.
  • the toothed racks 28 move to the right in relation to the crossmember 13.
  • the racks 28 Before reaching the support position, the racks 28 come to rest against the contact strip 20 via the stops 19, so that the racks 28 move to the left with respect to the crossmember, the support elements 14 are rotated as a result of the serrations 27 and the torsion springs 18 are tensioned.
  • each toothed rack 7 it has, according to FIG. 3, e.g. a centrally mounted shift rod 29, which is fixedly connected to the piston of a pressurizable working cylinder 5.
  • the other end part of the displacement rod 29, which is displaceable in the direction of the double arrow 34, is connected to a bolt 30.
  • the bolt 30 is rotatably mounted on the sliding rod 29 and has a thread-like circumferential groove 31 in which a pin 32 is guided.
  • the pin 32 is fixed in the rack 7.
  • the protruding from the rack 7 end of the bolt 30 carries a bolt 35 which can be fixed behind a recess 36 in the crossmember due to the rotation of the bolt 30.
  • Double arrow 33 indicates the rotary movement of the bolt 35 for fixing the cross member 13 to the collar shoulder 37 on the rack 7 and for releasing it.
  • the cross member 13 firmly on the toothed racks 7 or to provide the toothed racks 7 with the receptacles 15 which can be actuated by rotation, the rotary drive of which can also take place via a controllable actuator.
  • the support position of the support elements 14 can also be another, e.g. be in the middle of the press stands 2.
  • the console 3 is to be equipped to accommodate two further toothed racks 7 to be arranged on the right as gripper elements for acceptance on a second sliding table or its supporting elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Specific Conveyance Elements (AREA)
  • Press Drives And Press Lines (AREA)

Claims (8)

  1. Installation de dépôt intermédiaire de pièces dans des postes à vide de presses transfert, comportant des dispositifs de prise et de maintien disposés à proximité de postes à vide et destinés à prendre des éléments de support (14) montés de manière amovible sur des tables mobiles (21) ou sur des outils (22) portés par ces tables, ces éléments de support devant être amenés dans la zone du poste à vide adjacent et s'étendant sensiblement sur une étendue des pièces à supporter, caractérisée en ce qu'elle comporte, en correspondance de chaque dispositif de prise et de maintien, des récepteurs pivotants (15) à axe de pivotement vertical, lesquels peuvent d'une part être couplés chacun à un élément de support (14) grâce à un déplacement en direction des tables mobiles (21) et d'autre part couplés à un mécanisme de pivotement par lequel chacun des éléments de support (14) peut pivoter dans les deux sens entre une orientation transversale, que l'élément de support (14) prend sur la table mobile (21), et une orientation longitudinale par rapport à la direction de transport (16) des pièces.
  2. Installation selon la revendication 1, comportant des crémaillères (7) formant des organes de prise qui sont montés et entraînés, sur le dispositif de prise et de maintien, d'une manière coulissante dans la direction de transport (16) des pièces, caractérisée en ce que les récepteurs pivotants (15) sont disposés sur la partie des crémaillères (7) qui est proche de l'outil (22) et de la table mobile (21).
  3. Installation selon la revendication 1 ou 2, caractérisée en ce que le dispositif de prise et de maintien peut être couplé à au moins une traverse (13) portant les éléments de support (14), cette traverse étant fixée de manière amovible à la table mobile (21) ou à l'outil (22) et pouvant être entraînée par les crémaillères (7) du dispositif de prise et de maintien, et en ce que la traverse (13) comporte, pour chaque élément de support (14), un récepteur pivotant (15) qui est couplé à un mécanisme de pivotement.
  4. Installation selon la revendication 3, caractérisée en ce que la traverse (13) est agencée pour être saisie par les extrémités (17) des crémaillères (7) qui sont proches de l'outil (22) et de la table mobile (21), en ce que la denture de chacune desdites crémaillères (7) est engagée sur un pignon (12) monté de manière rotative sur la console (3) du dispositif de prise et de maintien, et en ce que les pignons (12) sont couplés mutuellement par un arbre commun (11) entraîné par un moteur (8).
  5. Installation selon la revendication 3, caractérisée en ce que les récepteurs pivotants (15) disposés sur la traverse (13) sont formés par une tige de support (38) ayant une partie supérieure porteuse (support 25) pour l'élément (14) et une partie de palier de pivotement (26) pour son montage dans la traverse (13), et en ce que chaque tige de support (38) comporte, dans sa partie de palier (26), une denture (27) coopérant avec le mécanisme de pivotement.
  6. Installation selon la revendication 5, caractérisée en ce que le mécanisme de pivotement comporte une crémaillère (28) correspondant à chaque tige de support (38) et attaquant la denture (27) de celle-ci, en ce que ladite crémaillère (28) est montée dans la traverse (13) d'une manière libre dans la direction de transport (16) des pièces, en ce que chacune de ces crémaillères libres (28) comporte une butée (19) dirigée contre le dispositif de prise et de maintien et agencée pour s'appuyer contre une barre d'appui (20) prévue sur celui-ci, et en ce que chaque tige de support (38) est couplée à un accumulateur (18) accumulant l'énergie pour le pivotement.
  7. Installation selon la revendication 6, caractérisée en ce que chaque accumulateur d'énergie est un ressort de torsion (19) monté avec une précontrainte sur la tige de support (38) et dont l'une des extrémités est fixée à la traverse (13) et l'autre à la tige de support (38).
  8. Installation selon la revendication 2, caractérisée en ce qu'une tringle coulissante (29) est montée dans un guidage parallèle à chaque crémaillère (7) et est couplée, par une de ses extrémités, à un vérin (5) de déplacement longitudinal (34) disposé dans la partie de la crémaillère (7) qui est éloignée de l'outil (22) et de la table mobile (21), et par son autre extrémité à une cheville rotative (30) montée de manière mobile dans la partie de la crémaillère (7) qui est proche de l'outil (22) et de la table mobile (21), en ce que ladite cheville (30) comporte une rainure périphérique hélicoïdale (31) qui coopère avec un doigt (32) de la crémaillère (7) pour effectuer une rotation (33) pendant son déplacement longitudinal (34) sous l'effet de la tringle coulissante (29), et en ce que ladite cheville (30) comporte, à son extrémité émergeant de la crémaillère (7), un verrou fixe (35) agencé pour s'accrocher à la traverse (13).
EP86101398A 1985-02-13 1986-02-04 Presse transfert Expired - Lifetime EP0191397B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853504765 DE3504765A1 (de) 1985-02-13 1985-02-13 Transferpresse
DE3504765 1985-02-13

Publications (3)

Publication Number Publication Date
EP0191397A2 EP0191397A2 (fr) 1986-08-20
EP0191397A3 EP0191397A3 (en) 1988-07-20
EP0191397B1 true EP0191397B1 (fr) 1991-04-10

Family

ID=6262310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86101398A Expired - Lifetime EP0191397B1 (fr) 1985-02-13 1986-02-04 Presse transfert

Country Status (5)

Country Link
US (1) US4713961A (fr)
EP (1) EP0191397B1 (fr)
BR (1) BR8600540A (fr)
DE (2) DE3504765A1 (fr)
ES (1) ES8703311A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5992208A (en) * 1997-05-23 1999-11-30 Schuler Pressen Gmbh & Co. Press arrangements with automatic tool exchange and method of tool exchange

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3709762A1 (de) * 1987-03-25 1988-10-06 Schuler Gmbh L Transferpresse
DE3737556A1 (de) * 1987-11-05 1989-05-18 Mueller Weingarten Maschf Mit dem werkzeugsatz umruestbare teileablagen fuer stufenpressen
DD280489A1 (de) * 1989-03-13 1990-07-11 Warnke Umformtech Veb K Einrichtung zum wechseln der in der leerstufe des seitenstaenders angeordneten formmaske einer transferpresse bei werkzeugwechsel
DE3931081A1 (de) * 1989-09-18 1991-03-28 Schuler Gmbh L Zwischenablage zwischen bearbeitungsstufen einer presse
EP0423749B1 (fr) * 1989-10-18 1993-03-03 Maschinenfabrik Müller-Weingarten AG Empilage pour pièces de travail en presses à étages
US5632181A (en) * 1995-02-23 1997-05-27 Verson, A Division Of Allied Products Corporation System and method for transferring a work piece in a multi-station press
US5875673A (en) * 1997-12-30 1999-03-02 Verson, A Division Of Allied Products Corporation Orientation station for multi-station metal-forming machines
US7028527B2 (en) * 2003-03-18 2006-04-18 Aida Engineering Ltd. Workpiece processing system and method of reconfiguring a workpiece processing system
US7199334B2 (en) * 2004-11-30 2007-04-03 Ford Global Technologies, Llc. Apparatus and method for heating and transferring a workpiece prior to forming
GB2433457B (en) * 2005-12-21 2009-07-15 Ford Global Tech Llc Heating And Transferring A Workpiece Prior To Forming
DE102006047109A1 (de) * 2006-09-27 2008-04-03 Ras Reinhardt Maschinenbau Gmbh Bearbeitungsmaschine
US20090126545A1 (en) * 2007-11-15 2009-05-21 Advanced Foundry Specialist, Llc Automated trim press and shuttle system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1523063A (en) * 1923-10-31 1925-01-13 Joseph A Fuchs Pick-up and transfer mechanism for bottle-making machines
US1744666A (en) * 1929-01-22 1930-01-21 Lewis W Newsom Bench
US2118620A (en) * 1936-10-16 1938-05-24 Orsenigo Alfred Adjustable table
US3456814A (en) * 1967-10-16 1969-07-22 Verson Allsteel Press Co Transfer assembly for presses
SU573323A1 (ru) * 1975-05-27 1977-09-25 Московское Специальное Конструкторское Бюро Автоматических Линий И Агрегатов Автооператор
FR2455931B1 (fr) * 1979-05-07 1985-06-28 Saunier Duval Dispositif de retournement de pieces monte sur barre de transfert de presse
US4540087A (en) * 1982-08-19 1985-09-10 Kabushiki Kaisha Komatsu Seisakusho Three-dimensional work transfer apparatus
US4693361A (en) * 1982-10-05 1987-09-15 Kabushiki Kaisha Komatsu Seisakusho Transfer press
DE3245603C1 (de) * 1982-12-09 1984-02-09 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Ablage fuer Werkstueckteile in einer z.B.im Zwischenstaender vorhandenen sogenannten Leerstufe einer Grossteil-Stufenpresse
JPS59163036A (ja) * 1983-03-07 1984-09-14 Nissan Motor Co Ltd トランスフアプレスにおけるアイドルステ−ジのワ−ク受台構造
DE3334021C1 (de) * 1983-09-21 1984-06-28 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Ablage fuer Werkstueckteile in einer im Zwischenstaender vorhandenen sogenannten Leerstufe einer Grossteil-Stufenpresse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5992208A (en) * 1997-05-23 1999-11-30 Schuler Pressen Gmbh & Co. Press arrangements with automatic tool exchange and method of tool exchange

Also Published As

Publication number Publication date
BR8600540A (pt) 1986-10-21
ES551904A0 (es) 1987-02-16
DE3504765A1 (de) 1986-08-21
ES8703311A1 (es) 1987-02-16
EP0191397A2 (fr) 1986-08-20
EP0191397A3 (en) 1988-07-20
US4713961A (en) 1987-12-22
DE3678588D1 (de) 1991-05-16

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