EP0349794A2 - Dispositif pour coupler et découpler des barres de préhension - Google Patents

Dispositif pour coupler et découpler des barres de préhension Download PDF

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Publication number
EP0349794A2
EP0349794A2 EP89110548A EP89110548A EP0349794A2 EP 0349794 A2 EP0349794 A2 EP 0349794A2 EP 89110548 A EP89110548 A EP 89110548A EP 89110548 A EP89110548 A EP 89110548A EP 0349794 A2 EP0349794 A2 EP 0349794A2
Authority
EP
European Patent Office
Prior art keywords
parts
gripper rail
structural
gripper
rail parts
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
EP89110548A
Other languages
German (de)
English (en)
Other versions
EP0349794A3 (en
EP0349794B1 (fr
Inventor
Walter Rieger
Karl Thudium
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 EP0349794A2 publication Critical patent/EP0349794A2/fr
Publication of EP0349794A3 publication Critical patent/EP0349794A3/de
Application granted granted Critical
Publication of EP0349794B1 publication Critical patent/EP0349794B1/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 of the type specified in the preamble of claim 1.
  • the gripper rails of a transfer press are divided into gripper rail parts.
  • the gripper rail parts located in the press stand area remain in the press; on the other hand, the gripper rail parts carrying the grippers are replaced when the transfer press is set up on another workpiece.
  • the gripper rail parts are to be connected to one another to form (overall) gripper rails.
  • DE-A1-23 59 912 shows gripper rail parts, the end regions of which are stepped. The separation point between the abutting end regions is bridged by a connecting piece which corresponds to the shape of the end regions. The type of bracing of the gripper rail parts with one another is not shown.
  • DE-GM 82 02 432 shows correspondingly shaped end regions of gripper rail parts which lie one on top of the other during operation and are clamped to one another by a screwing means.
  • a separating gap between the gripper rail parts is bridged by a hinged gripper rail lock that is attached to the gripper rail part remaining in the press foldable is attached.
  • the gripper rail parts are connected to one another by screwing means.
  • DE-A1-32 35 308 shows an adjusting means in a measure for coupling and uncoupling, which is introduced into a gripper rail part. This serves to secure the positive connection formed by correspondingly shaped end regions of the gripper rail parts after the joining.
  • a separating gap is formed between the gripper rail parts. Before tightening the gripper rail parts against each other, this must be filled with thrust pieces.
  • the insertion of the pressure pieces into the separating gap and the subsequent clamping of the gripper rail parts against one another is achieved by means of an adjusting means which is fastened in the end region of a gripper rail part.
  • the actuating means has a clamping bolt which on the one hand moves the pressure pieces.
  • the clamping bolt can be placed with a clamping head behind a clamping surface in the gripper rail part to be clamped and can be fixed by pulling it back.
  • the unit can be preassembled as a whole, can be stored and transported, and can be attached to the gripper rail parts as a complete part and forms the required coupling level for the operating state "gripper rail change at the same time as the tool change".
  • the cross-sectional dimensions of the structural unit can correspond to the cross-sectional dimensions of the end regions of the gripper rail parts, so that only components that are required anyway survive for any other use.
  • the assembly can also be used with gripper rails whose gripper rail parts are made from flat rail material. Existing gripper rails, including those with an initially different coupling version, can be retrofitted.
  • the assembly can be used both for gripper rail systems, where joints are required in the coupling levels, and in particular for gripper rail systems without joints, in which the parts of the gripper rail are to be coupled in the end areas by flange-like pressing of the end faces.
  • the transfer press 35 partially shown in FIG. 4 has gripper rails between the free spaces of the press stand 36 and sliding tables 37 which can be moved out of the transfer press via rollers 40, and can be raised and lowered.
  • the gripper rails are formed from gripper rail parts 1, 2 which can be connected to one another by means of complete assembly units 3.
  • the assembly units form dome planes 22 for separating the gripper rail parts 2 that can be moved out of the sliding tables via support means 39 when changing out of the transfer press.
  • An actuating means is indicated at 16 for decoupling and coupling the gripper rail parts.
  • the gripper rail parts 1 remaining in the transfer press and thus the overall gripper rails can be driven by deflection means in the indicated lock boxes 38.
  • a structural unit 3 is shown with the structural parts 4, 5 in the manner of housings, which have centering lugs 8, 9, keys 10, 11 and screw means 33 (Fig. 2) in grooves 12, 13, centering holes 14, 15 and Threaded holes 34 (Fig. 2) can be locked between the gripper rail parts.
  • 6, 7 indicate the assembly levels for the assembly unit on the gripper rail parts 1, 2, in which it is assembled as a complete assembly unit in the end regions of the gripper rail parts.
  • the assembly parts are for assembly in the gripper rail parts and for operation - transfer of workpieces in the transfer press - in the assembled state.
  • a mounting part 5 has the actuating means 16, which can be passed through the openings 39, 31 via a tensioning bolt 17 with the tensioning anchor 18 and can be fixed behind a tensioning surface 19 in the other mounting part 4 by rotating and retracting it by pressing against one another in the end faces of the structural parts introduced flange surfaces 41. These are formed, for example, by shoulders 42, which can protrude behind the flange surfaces.
  • a bridge part 20 is moved with the tensioning bolt, on which, on the one hand, centering bolts 21 for engagement in centering bores 29 of the other structural part are fastened; on the other hand, a guide pin 23 is fastened to the bridge part, which is guided through an opening 24 in the wall of the structural part.
  • the guide pin engages in a carriage 26, the ge in rails 25 leads, and which carries a coupling half 28 for contact with a coupling half 27 located firmly on the other structural part.
  • FIG. 3 is one of the two same views of the assembly 3 in the area of the assembly level 6, 7 (FIG. 1) with the feather keys 11, the centering projection 9, the screw means 33 or through holes therefor and the cutouts 32 in the mounting part 5.
  • FIG. 5 shows an exemplary embodiment using a structural unit 3 for flat gripper rail parts 1, 2.
  • the completely delivered assembly unit is e.g. Feather keys 10, 11 for locking and screwing means 33, 34 for fixed connection to the end regions of the gripper rail parts 1, 2.
  • the means required for this are provided in the common assembly level 6, 7 here.
  • the positions of the components still marked correspond to those of the previously described embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)
  • Framework For Endless Conveyors (AREA)
EP89110548A 1988-07-02 1989-06-10 Dispositif pour coupler et découpler des barres de préhension Expired - Lifetime EP0349794B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3822473 1988-07-02
DE3822473A DE3822473A1 (de) 1988-07-02 1988-07-02 Vorrichtung zum kuppeln und entkuppeln von greiferschienenteilen

Publications (3)

Publication Number Publication Date
EP0349794A2 true EP0349794A2 (fr) 1990-01-10
EP0349794A3 EP0349794A3 (en) 1990-08-22
EP0349794B1 EP0349794B1 (fr) 1993-01-13

Family

ID=6357847

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89110548A Expired - Lifetime EP0349794B1 (fr) 1988-07-02 1989-06-10 Dispositif pour coupler et découpler des barres de préhension

Country Status (4)

Country Link
US (1) US4932235A (fr)
EP (1) EP0349794B1 (fr)
DE (2) DE3822473A1 (fr)
ES (1) ES2037910T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5097695A (en) * 1990-02-21 1992-03-24 Verson A Division Of Allied Products Corporation Transfer finger shift apparatus for transfer presses having mechanically driven transfer feeds
US5127787A (en) * 1990-05-24 1992-07-07 Brothers Industries, Inc. Lift and carry mechanism and method
AU657510B2 (en) * 1991-05-24 1995-03-16 Apple Inc. Improved image encoding/decoding method and apparatus
DE19542203A1 (de) * 1995-11-13 1997-05-15 Schuler Pressen Gmbh & Co Umrüstbare Mehrstationenpresse
DE19740293A1 (de) * 1997-09-13 1999-03-18 Schuler Pressen Gmbh & Co Transferpressen mit automatischem Toolingwechsel
US6134939A (en) * 1999-07-02 2000-10-24 Hms Products Toolless quick release of transfer bar
JP4509402B2 (ja) * 2001-01-26 2010-07-21 株式会社小松製作所 トランスファフィーダ用フィンガの外段取り装置
DE10223897A1 (de) * 2002-05-29 2003-12-11 Mueller Weingarten Maschf Werkzeugwechselvorrichtung für Pressen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8202432U1 (de) * 1982-01-30 1983-02-10 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Greiferschienentransfereinrichtung für Pressen
DE3150508C1 (de) * 1981-12-21 1983-11-17 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Vorrichtung zur lösbaren Verbindung von Greiferschienenteilen der Greiferschienen in einer Transfer-Presse
DE3235308A1 (de) * 1982-09-24 1984-03-29 L. Schuler GmbH, 7320 Göppingen Pressen-einheit mit zugleich mit dem werkzeugwechsel auszutauschenden greiferschienen
DE3501946A1 (de) * 1985-01-22 1986-07-24 Günter 7500 Karlsruhe Zierpka Transfereinrichtung zum schrittweisen material- und/oder werkstuecktransport, insbesondere in pressen
DE3636011A1 (de) * 1986-10-23 1988-04-28 Schuler Gmbh L Vorrichtung und verfahren zum kuppeln und entkuppeln von greiferschienenteilen in einer transferpresse
DE3636010A1 (de) * 1986-10-23 1988-04-28 Schuler Gmbh L Vorrichtung zum kuppeln und entkuppeln von greiferschienenteilen in einer transferpresse

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1435028A (en) * 1973-11-29 1976-05-12 Hitachi Shipbuilding Eng Co Multi-station transfer presses
DE3436075C1 (de) * 1984-10-02 1985-04-25 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Vorrichtung zur Ioesbaren Verbindung von Greiferschienenteilen der Greiferschienen in einer Transfer-Presse
DE3437241A1 (de) * 1984-10-11 1986-04-17 L. Schuler GmbH, 7320 Göppingen Vorrichtung zum kuppeln und entkuppeln von greiferschienenteilstuecken einer transferpresse
DE3520343A1 (de) * 1985-06-07 1986-12-11 L. Schuler GmbH, 7320 Göppingen Vorrichtung zum kuppeln und entkuppeln von greiferschienenteilstuecken einer transferpresse
DD257403B1 (de) * 1987-02-04 1990-04-11 Warnke Umformtech Veb K Transferstange fuer transferpressen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3150508C1 (de) * 1981-12-21 1983-11-17 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Vorrichtung zur lösbaren Verbindung von Greiferschienenteilen der Greiferschienen in einer Transfer-Presse
DE8202432U1 (de) * 1982-01-30 1983-02-10 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Greiferschienentransfereinrichtung für Pressen
DE3235308A1 (de) * 1982-09-24 1984-03-29 L. Schuler GmbH, 7320 Göppingen Pressen-einheit mit zugleich mit dem werkzeugwechsel auszutauschenden greiferschienen
DE3501946A1 (de) * 1985-01-22 1986-07-24 Günter 7500 Karlsruhe Zierpka Transfereinrichtung zum schrittweisen material- und/oder werkstuecktransport, insbesondere in pressen
DE3636011A1 (de) * 1986-10-23 1988-04-28 Schuler Gmbh L Vorrichtung und verfahren zum kuppeln und entkuppeln von greiferschienenteilen in einer transferpresse
DE3636010A1 (de) * 1986-10-23 1988-04-28 Schuler Gmbh L Vorrichtung zum kuppeln und entkuppeln von greiferschienenteilen in einer transferpresse

Also Published As

Publication number Publication date
ES2037910T3 (es) 1993-07-01
US4932235A (en) 1990-06-12
DE58903261D1 (de) 1993-02-25
EP0349794A3 (en) 1990-08-22
DE3822473A1 (de) 1990-01-04
EP0349794B1 (fr) 1993-01-13

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