EP0394723A1 - Dispositif pour changer dans une presse-transfert ou machine de formage - Google Patents

Dispositif pour changer dans une presse-transfert ou machine de formage Download PDF

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Publication number
EP0394723A1
EP0394723A1 EP90106572A EP90106572A EP0394723A1 EP 0394723 A1 EP0394723 A1 EP 0394723A1 EP 90106572 A EP90106572 A EP 90106572A EP 90106572 A EP90106572 A EP 90106572A EP 0394723 A1 EP0394723 A1 EP 0394723A1
Authority
EP
European Patent Office
Prior art keywords
carriages
metal parts
sheet metal
press
movement
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
EP90106572A
Other languages
German (de)
English (en)
Other versions
EP0394723B1 (fr
Inventor
Karl Thudium
Walter Rieger
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 EP0394723A1 publication Critical patent/EP0394723A1/fr
Application granted granted Critical
Publication of EP0394723B1 publication Critical patent/EP0394723B1/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
    • B21D43/052—Devices having a cross bar
    • 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
    • B21D43/055—Devices comprising a pair of longitudinally and laterally movable parallel transfer bars

Definitions

  • the invention relates to an implementation device of the type specified in the preamble of claim 1 and claim 2.
  • Transfer devices in presses transport the e.g. an inserting device (feeder) in the first processing stage inserted sheets or workpieces through the press into the area of the removal. Forming is carried out using ram-driven tools or tool upper parts.
  • the transfer device must be moved in two or three axes, such as lifting / lowering, transporting / returning and closing / opening if necessary, in time with the press.
  • the carriages each one rail are still connected to each other so that the first pair of carriages connected by a cross-beam with the third and each next but one pair of carriages as well as the second pair of carriages with the fourth and each next but one pair of carriages un Execute or achieve different movements when reversing and different standstill positions between the tools.
  • the movements are picked up by rotating cam discs.
  • the runners are raised to lift the formed sheet metal part / workpieces from the lower tool parts, during the transfer movement, and to deposit the sheet metal parts in the next stage.
  • the first and second carriages on each running rail are connected to a cam follower lever attached to the respective cam disc by means of link rods.
  • correction areas for the production of the cam disks can be predetermined and therefore do not require any additional structural measures.
  • a tool upper part of a tool 4 for forming sheet metal parts 3 is attached to the ram 2 of the press 1.
  • the sheet metal parts 3 are in the processing stages, which are characterized by the tools 4, optionally with intermediate storage on supports 5.
  • a conversion device is provided, which is indicated overall by the item number 6.
  • This has one or two running rails 7, 7 ', of which the running rail 7 located in front of tappet 2 and tool 4 can be seen.
  • the rails 7, 7 ' are guided in straight guides 23 on press stands and by tapping a cam 18 by means of cam follower 16 and motion drive a longitudinal rod 14 and deflection devices 13 passed through the press 1 above the straight guides 23 can be raised and lowered.
  • the articulation point of the cam follower lever 16 on the longitudinal rod 14 is positioned at 22.
  • Each track 7 and 7 'each have a cam 18 and the means 13, 14, 22 for transmitting the movements.
  • FIG. 1 shows the carriages 8, 9 in a position during the return movement, which is positioned at 50 in FIG. 3.
  • the carriages 9 are provided with holding means for receiving, transporting and storing the sheet metal parts 3.
  • the holding means consist of a respective one on the front and rear rails 7, 7 'movable carriage 9, 9' connecting cross-beam 11 and a suction spider attached to this 12.
  • the carriage 8 of each rail 7, 7 ' serve to bridge the distance between the cam follower lever 36 and the second pair of carriages carrying a suction spider 12.
  • the cam follower levers 36, 37 are placed on cams 41, 42 and, like the cam follower levers 16, 16 ', are held by means of pressure cylinders or corresponding actuating means for bearing against the cam tracks.
  • the movement of the cam follower levers 36, 37 takes place in the articulation points 34, 35 by means of articulation rods 26 for the carriages 8 and articulation rods 31 for the carriages 9 , 7 'raised synchronously, there is an offset of the carriages 8, 9 and the follower carriage, which are connected to the articulated carriages 8, 9 via corresponding link rods.
  • the offset of the carriage 8 is due to the new one drawn above Location 8 'has been indicated.
  • the offset is greater the closer the articulated carriage 8 or 9 is to the articulation point 34 or 35, ie the shorter the articulation rods 26 and 31 are.
  • the articulation points of these articulation rods 26, 31 on the carriages 8, 9 are indicated at 27 and 32, respectively.
  • With 7 ⁇ a raised rail 7 or 7 'is positioned.
  • the movement of the carriage 8, 9 and the follower carriage is indicated for the carriage 8 with 28 and for the carriage 9 with 33 '.
  • the movement of the carriage 9 from the removal position for the sheet metal part 3 in the lower tool part into the raised transport position is indicated in the middle of the tool 4 with the circular arc 33.
  • FIG. 2 shows the bearing points of the cam disks 41, 42 and 18 and the cam follower levers 36, 37 and 16.
  • the cams 41, 42, 18 are mounted on the hub 48 of the drive gear 47 in a rotationally secure manner.
  • the gear 47 is supported by the hub 48 in e.g. Stand plates 46, as well as the bearing of the cam follower levers 36, 37, 16 in the split shaft bearing 21a, 21b.
  • the articulation rods 14 for lifting / lowering are stored in the articulation point 22, and those of the articulation rods 26, 31 in the articulation points 34, 35.
  • the transfer movement of the suction spider 12 or the carriages 8, 9 from FIG. 1 is indicated by 49, the return movement of which is indicated by 50.
  • the transfer movement 49 begins with a linear, vertical lifting movement 52, which is predetermined by the largest possible dimension 51 of all the tools 4 that can be used.
  • the sheet metal part 3 must be lifted out of the lower tool part in this vertical movement 52. With 51 'the movement of the lower edge of the sheet metal part 3 can be seen.
  • This initial vertical movement 52 is brought about by the fact that the cam disks 41, 42 for the transfer of the workpieces 3 are corrected in areas indicated by 45 compared to a curve shape with which such a movement has not previously been possible, ie the cam tracks of the cam disks 41, 42 have an undersize or oversize compared to a conventional locking path, the undersize or oversize being dependent on the position of the pivot point of the associated cam follower lever on the press frame.
EP90106572A 1989-04-26 1990-04-05 Dispositif pour changer dans une presse-transfert ou machine de formage Expired - Lifetime EP0394723B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3913663 1989-04-26
DE3913663A DE3913663A1 (de) 1989-04-26 1989-04-26 Umsetzeinrichtung in einer transferpresse o.dgl. umformmaschine

Publications (2)

Publication Number Publication Date
EP0394723A1 true EP0394723A1 (fr) 1990-10-31
EP0394723B1 EP0394723B1 (fr) 1992-12-02

Family

ID=6379448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106572A Expired - Lifetime EP0394723B1 (fr) 1989-04-26 1990-04-05 Dispositif pour changer dans une presse-transfert ou machine de formage

Country Status (3)

Country Link
EP (1) EP0394723B1 (fr)
DE (2) DE3913663A1 (fr)
ES (1) ES2036380T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032340A1 (de) * 1990-10-09 1992-04-16 Erfurt Umformtechnik Gmbh Dreidimensionale transfereinrichtung zum werkstuecktransport in oder zwischen pressen
US5718152A (en) * 1994-07-20 1998-02-17 Schuler Pressen Gmbh & Co. Press with gripping rails and pretensioning device
US5927139A (en) * 1996-03-01 1999-07-27 Komatsu Ltd. Oil leakage preventive device for transfer feeder
EP1072335A2 (fr) * 1999-07-27 2001-01-31 Müller Weingarten AG Entraínement d'un mécanisme de transfert pour une presse

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110215A1 (de) * 1991-03-28 1992-10-01 Mueller Weingarten Maschf Transporteinrichtung zum transportieren von grossflaechigen teilen in einer stufenpresse
DE4218818A1 (de) * 1992-06-06 1993-12-09 Mueller Weingarten Maschf Transporteinrichtung
WO1994016840A1 (fr) * 1993-01-21 1994-08-04 Kabushiki Kaisha Komatsu Seisakusho Unite d'alimentation pour transfert
DE4309643C2 (de) * 1993-03-25 2002-06-13 Schuler Pressen Gmbh & Co Umsetzeinrichtung für den Werkstücktransport

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0202882A2 (fr) * 1985-05-17 1986-11-26 Avondale Industries, Inc. Mécanisme de transfert pour presses
DE3725310A1 (de) * 1986-08-08 1988-02-11 Sumitomo Heavy Industries Mechanischer umsetzfoerderer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0202882A2 (fr) * 1985-05-17 1986-11-26 Avondale Industries, Inc. Mécanisme de transfert pour presses
DE3725310A1 (de) * 1986-08-08 1988-02-11 Sumitomo Heavy Industries Mechanischer umsetzfoerderer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032340A1 (de) * 1990-10-09 1992-04-16 Erfurt Umformtechnik Gmbh Dreidimensionale transfereinrichtung zum werkstuecktransport in oder zwischen pressen
US5718152A (en) * 1994-07-20 1998-02-17 Schuler Pressen Gmbh & Co. Press with gripping rails and pretensioning device
US5927139A (en) * 1996-03-01 1999-07-27 Komatsu Ltd. Oil leakage preventive device for transfer feeder
EP1072335A2 (fr) * 1999-07-27 2001-01-31 Müller Weingarten AG Entraínement d'un mécanisme de transfert pour une presse
EP1072335A3 (fr) * 1999-07-27 2001-11-07 Müller Weingarten AG Entraínement d'un mécanisme de transfert pour une presse
US6338264B1 (en) 1999-07-27 2002-01-15 Mueller Weingarten Ag Transfer drive for a press

Also Published As

Publication number Publication date
EP0394723B1 (fr) 1992-12-02
DE3913663A1 (de) 1990-10-31
DE59000527D1 (de) 1993-01-14
ES2036380T3 (es) 1993-05-16

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