EP0337247A2 - Presse à étages multiples avec des barres de transfert divisibles en longueur - Google Patents

Presse à étages multiples avec des barres de transfert divisibles en longueur Download PDF

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Publication number
EP0337247A2
EP0337247A2 EP89105873A EP89105873A EP0337247A2 EP 0337247 A2 EP0337247 A2 EP 0337247A2 EP 89105873 A EP89105873 A EP 89105873A EP 89105873 A EP89105873 A EP 89105873A EP 0337247 A2 EP0337247 A2 EP 0337247A2
Authority
EP
European Patent Office
Prior art keywords
gripper rail
flange surfaces
transfer press
rail parts
flange
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
EP89105873A
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German (de)
English (en)
Other versions
EP0337247A3 (en
EP0337247B1 (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 EP0337247A2 publication Critical patent/EP0337247A2/fr
Publication of EP0337247A3 publication Critical patent/EP0337247A3/de
Application granted granted Critical
Publication of EP0337247B1 publication Critical patent/EP0337247B1/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 transfer press according to the preamble of claim 1.
  • the change of gripping tools and the gripper rail parts carrying them takes place with the tool change by means of the press and sliding tables that can be moved out of it.
  • the exchangeable gripper rail parts can be uncoupled from or coupled to the gripper rail parts remaining in the press.
  • a coupling device has been described in DE 35 01 946 C2, said coupling device comprising connecting means interacting in a form-fitting manner in the coupling position.
  • the end faces of the gripper rail parts have surfaces which are pressed against one another in the coupling position by means of a rotary tensioner.
  • the surfaces are conical and counter-conical surfaces.
  • the rotary tensioner is introduced into an end part of a gripper rail part and has a tension rod which is rotatable and is movable in its axial extent. The tension rod can be moved out of the end part of the gripper rail part into the end part of the gripper rail part to be coupled, and after rotation and withdrawal with the application of force with the hammer-like shaped end of the rod can be fixed behind a clamping surface.
  • the parting line is due to the movement of the instep rod when uncoupling by pushing apart the gripper rail parts, to close when coupling by pulling the gripper rail parts.
  • the object of the invention is to enable coupling-free coupling and uncoupling of gripper rail parts. This object is achieved in a transfer press according to the preamble of claim 1 by the features specified in its characteristics.
  • the features of the further claims represent preferred and partially inventive designs.
  • the formation of the end faces on the end parts of the gripper rail parts according to the invention significantly reduces the changing time of the gripper rail parts.
  • the machining of the end faces is simplified and therefore less expensive.
  • the number of movements and the components for coupling and uncoupling is reduced. No separating movement and therefore no movement of the gripper rail parts in their axial extension is required.
  • the control of the locking means on the press and sliding table can be simplified.
  • the surface areas of the flange surfaces can be significantly increased, and the surface pressure can consequently be reduced.
  • the lifting-lowering movement for moving the flange surfaces in the dome-uncoupling plane can be less than the height, or possibly the width of the gripper rail parts.
  • the dome-uncoupling movement of the exchangeable gripper rail part can take place with the movement of the sliding table.
  • a sliding table 3 has been moved into the working area of the transfer press 1 between the press stands 2 and has been slightly lowered.
  • the lifting-lowering movement in direction 5 takes place by means of working cylinders 13 in the sliding table or in the press table.
  • the sliding table 3 can be moved in the direction of the double arrow 15 via rollers 18 guided on rails 17.
  • both a tool 6 or a tool set and parts of gripper rails can be exchanged with the sliding table 3.
  • the divisible gripper rails consist of press-side gripper rail parts 7, 9 remaining in the transfer press 1, in FIG. 1, or 41, 43 in FIG. 7, and exchangeable ones, which can be moved out or in with the sliding table 3 from the transfer press 1 these retractable gripper rail parts 8, 10 or 42.
  • the gripper rails are driven for operation - moving workpieces - in the lifting-lowering movement and in the opening-closing movement of locking boxes 12 via guide means 11; for the transfer from one of the end faces of the transfer press 1.
  • the lifting-lowering movement of the sliding table 3 in the direction 5 can be used to lift the exchangeable gripper rail parts 8, 10.
  • the gripper rail parts separate from one another in the separation points indicated by 16.
  • With 14 conditions on the sliding table 3 for the interchangeable gripper rail parts 8, 10 and, 42 are indicated in Fig. 7.
  • These can consist of lifting cylinders and serve the 3 coupling and uncoupling of the gripper rail parts 8, 9, 10, 41, 42, 43 instead of the sliding table by lifting and lowering.
  • a commercially available power tensioning element 21 which is available under the name of rotary tensioner, is inserted in the end part of the exchangeable gripper rail part 8.
  • the rotary tensioner 21 generates the required movements for a tensioning rod 22.
  • the latter is advanced in its axial direction from the gripper rail part 8 beyond the separation point 16 into the gripper rail part 7, then rotated and partially withdrawn in order to rest the hammer-head-like rod end on a clamping surface 26 of the gripper rail part 7.
  • the force of the gripper rail parts 7, 8; 8, 9; 9, 10 and in FIG. 7 the gripper rail parts 41, 42; 42, 43 etc. pressed together, clamped together.
  • a bridge part 23 is also moved, which on the one hand carries centering bolts 24 for aligning the gripper rail parts 7, 8, 9, 10, 41, 42, 43 with one another before mutual tensioning.
  • a guide pin 32 is moved with the bridge part 23, which engages in a groove 33 of a carriage 29.
  • the carriage 29 movable in the direction of the longitudinal extent of the gripper rail part 8 carries one half 28 of an energy coupling.
  • the other coupling half 27 is arranged on the gripper rail part 7.
  • FIG. 3 shows the tension rod 22 retracted into the gripper rail part 8 and the centering bolts 24 and the slide 29 moved back simultaneously by the bridge part 23.
  • FIGS. 2 and 3 are with 34 'and 34 ′′′ flange surfaces on the press-fixed gripper rail part 7 and with 37 'and 37 ′′′ flange surfaces on the interchangeable gripper rail part 8.
  • the flange surfaces 34 ', 34 ′′′, 37' and 37 ′′′ are each located in the edge areas of the end faces and extend across their width.
  • the flange surfaces 34, 37 shown and described overall in these and the other figures are flat, flat surfaces.
  • each flange surface 34 ', 34 ′′′, 37', 37 ′′′ runs both in direction 5 of the lifting and lowering movement and in direction 15 of the movement of the sliding table 3.
  • the flange surface 37 'on the interchangeable gripper rail part 8 protrudes from the flange surface 37 ′′′ , which in this exemplary embodiment is set back from the main surface portion of the end face, further out of the end face. This creates a distance between the gripper rail parts 7, 8 when uncoupling by lifting the gripper rail part 8 in direction 5 or when moving out in direction 15 of the sliding table 3; 8, 9; 9, 10, etc.
  • the width of the flange surfaces 34 ', 34 ′′′, 37', 37 ′′′ can be related to, for example, the length of the lifting and lowering movement.
  • the width as a measure, measured in the direction 5 of this movement, can thus correspond approximately to the length of this movement.
  • the required minimum width is to be calculated from the permissible surface pressure. The slight lifting and lowering movement of the sliding table 3 from its locking on the press table is sufficient for uncoupling or coupling, if a calculated minimum width can be maintained.
  • the position number 15 refers to the traversing movement of the sliding table 3, which is 90 degrees to the direction 5 of the lifting and lowering of the sliding table 3 or the lifting cylinder 14. If the movement of the sliding table 3 is used for coupling and uncoupling, the flange surfaces 34 ', 34 ′′′, 37' and 37 ′′′ can also be introduced in a vertical arrangement in the end faces.
  • the protruding flange surfaces 34 ′′′ and 37 ' are provided with bevels 36, 38 for the first contact between the gripper rail parts 7, 8, 9, 10, 41, 42, 43 when they approach.
  • the protruding flange surface 34 ′′′ on the press-fixed gripper rail parts 7, 9 forms a stop surface 40, against which the stop surface 39 can be placed on the exchangeable gripper rail part 8, 10 when coupling.
  • these stop surfaces 39, 40 serve to prevent the interchangeable lowering of the interchangeable gripper rail parts 8, 10.
  • Fig. 4 shows an arrangement of three flange surfaces 34 ', 34 ⁇ , 34 ′′′ in the end face of the gripper rail part 7, which over the width, with imaginable rotation of the gripper rail parts 7, 8, 9, 10, 41, 42, 43 around 90 degrees around its longitudinal axis according to the movement of the carriage 3, then over the height of the gripper rail part 7 or all gripper rail parts 7, 8, 9, 10, 41, 42, 43.
  • the flange surface 34 ' which runs essentially centrally to the flange surfaces 34', 34 ′′′ in the edge regions of the end face is interrupted in its length by the range of movement of the clamping bolt 22.
  • the three-way arrangement of the flange surfaces 34 ', 34 ⁇ , 34 ′′′ and 37', 37 ⁇ , 37 ′′′ is also from FIGS. 5 and 6 recognizable.
  • the figures 5 and 6 show the different projecting of the flange surfaces 34, 37 from the end faces of the gripper rail parts 7 and 8.
  • the replaceable gripper rail part 8 must be guided, coupled or uncoupled with the flange surfaces 34 ', 34 ⁇ , 34 ′′′ of the press-fixed, remaining in the press, gripper rail part 7 in a (lateral) displacement movement.
  • the direction 5, 15, 35 of the dome-uncoupling movement upper or front flange surface 37 'on the interchangeable gripper rail part 8 protrudes further from the end face than the second, adjacent flange surface 37
  • the second flange surface 37 ⁇ in turn protrudes further from the end surface than the third, bottom flange surface 37′′′ here.
  • the complementary flange surfaces 34 ', 34 ⁇ , 34 ′′′ on the press-side gripper rail part 7 therefore protrude in an interchanged manner from the end face.
  • the free space 45 between the flange surfaces 34, 37 is to be made slightly larger than the width of the flange surfaces 34, 37.
  • the chamfers 36, 38 on the flange surfaces 34, 37 are to be designed accordingly in length and inclined position.
  • the dome-uncoupling movement for the gripper rail parts 7, 8, 9, 10, 41, 42, 43 takes place for all exemplary embodiments in one plane, which is shown in more detail in FIG. 9 and was positioned there with 46.
  • Fig. 7 shows a transfer press 1 with press stands 2 and movable sliding table 3.
  • the pair of gripper rails are also divided into press-side gripper rail parts 41 and 43 and interchangeable gripper rail parts 42.
  • the coupling and uncoupling of these in the area of the separation point 16 takes place via the lock box 12 or through the lock box 12, which can be carried out in the direction of 35.
  • This lifting-lowering movement is greater or at least the same size as the additive movement from the required dome-uncoupling movement and the lifting-lowering movement of the sliding table 3 for moving it out.
  • the required lifting stroke of the gripper rail parts 41, 43 is shown by dash-dotted lines 41 ', 43'.
  • FIG. 8 shows the configuration of the end faces of the gripper rail parts 41, 42 for the application described for FIG. 7.
  • the gripper rail part 41 and 43 which can be raised and lowered in the direction 35 by means of the lock box 12, has flange surfaces 34 ', 34 ′′′.
  • the upper flange surface 34 'seen in the direction 35' on the gripper rail part 41 or 43 protrudes further from the end face than the lower flange surface 34 ′′′.
  • the flange surface 34 'or 34 ⁇ protrudes further than the adjacent flange surface 34 ⁇ or 34 ′′′.
  • the flange surfaces 37 ', 37 ⁇ , 37 ′′′ on the interchangeable gripper rail part 42 are staggered in reverse.
  • Arrow 15 points to the movement of the sliding table 3, which is rotated by 90 degrees to the direction 35 in accordance with the previous definition.
  • the flange surfaces 34, 37 are arranged in a manner extending over the height of the gripper rail parts 41, 42, 43; FIG. 8 would then be seen as a view from above, which are related to the movement of the Sliding table 3 in the direction 15 rear flange surfaces 34 'and 34 34 on the press-side gripper rail part 41, 43 protruding further from the end face than the front, front, flange surfaces 34 ⁇ and 34 ′′′.
  • the complementary flange surfaces 37 ', 37 ⁇ , 37 ′′′ are to be designed accordingly. For this embodiment according to FIG.
  • the interchangeable gripper rail parts 42 located at the rear are to be made shorter in order to move them with the movement of the sliding table 3 in direction 15 between the front, gripper rail parts 41 on the press side , 43 to be able to pass through.
  • FIG. 9 shows an embodiment of the flange surfaces 34, 37 which protrude equally far from the end faces of the gripper rail parts 7, 9, 41, 43 and 8, 10, 42; the flange surfaces 34, 37 are located in the plane 46.
  • This plane 46 which is indicated here, can also generally apply as the process plane of all the exemplary embodiments shown.
  • the stop 47 serves to limit the movement of the gripper rail part 7, 9, 41, 43 or 8, 10, 42, which is moved into the coupling position in the directions 5, 15, 35. With 15, in turn, a direction of the movement of the sliding table 3 rotated by 90 degrees specified.
  • the gripper rail parts 8, 42 resting on the sliding table 3 can thus also be moved out of or into the transfer press 1 without a lifting and lowering movement of the gripper rail parts 7, 9, 41, 43 on the press side. Accordingly, the flange surfaces 34, 37 are to be provided with chamfers 36, 38 on both sides in the direction of the movement 15, as can also be seen from the dash-dotted lines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
EP89105873A 1988-04-14 1989-04-04 Presse à étages multiples avec des barres de transfert divisibles en longueur Expired - Lifetime EP0337247B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3812365 1988-04-14
DE3812365A DE3812365A1 (de) 1988-04-14 1988-04-14 Transferpresse mit in ihrer laenge teilbaren greiferschienen

Publications (3)

Publication Number Publication Date
EP0337247A2 true EP0337247A2 (fr) 1989-10-18
EP0337247A3 EP0337247A3 (en) 1990-07-25
EP0337247B1 EP0337247B1 (fr) 1992-12-02

Family

ID=6351936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89105873A Expired - Lifetime EP0337247B1 (fr) 1988-04-14 1989-04-04 Presse à étages multiples avec des barres de transfert divisibles en longueur

Country Status (4)

Country Link
US (1) US4924692A (fr)
EP (1) EP0337247B1 (fr)
DE (2) DE3812365A1 (fr)
ES (1) ES2036736T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054306A (en) * 1990-02-21 1991-10-08 Verson, A Division Of Allied Products Corporation Transfer finger shift apparatus for transfer presses
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
US5121623A (en) * 1990-02-21 1992-06-16 Verson, A Division Of Allied Products Corporation Method for changing transfer fingers in a transfer press
DE4309237A1 (de) * 1993-03-23 1994-09-29 Schuler Gmbh L Vorrichtung zum Kuppeln und Entkuppeln bzw. zum Verriegeln und Entriegeln von Ausbau-/Austauschteilen, wie Werkzeuge, Greiferschienenteilstücke u. dgl.
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
CA2345860A1 (fr) * 2001-05-01 2002-11-01 Linear Transfer Systems Ltd. Dispositif d'accouplement
JP4796782B2 (ja) * 2005-04-14 2011-10-19 コマツ産機株式会社 ワーク搬送装置、プレス機械、およびバー取外方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569029A (en) * 1979-07-03 1981-01-29 Aida Eng Ltd Connector of feed bar
AT364223B (de) * 1979-11-19 1981-10-12 Aida Eng Ltd Mehrstufige presse
EP0116684A1 (fr) * 1982-09-24 1984-08-29 L. SCHULER GmbH Presse avec des guides de transfert échangeables simultanément avec les outils
DE3433566A1 (de) * 1983-12-23 1985-07-25 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Pressenausbildung zum automatischen werkzeugwechsel
EP0188776A2 (fr) * 1985-01-22 1986-07-30 Günter Zierpka Dispositif de transfert pour le transport pas à pas de materiau et/ou de pièce à usiner, particulièrement dans les presses
EP0264732A2 (fr) * 1986-10-23 1988-04-27 L. SCHULER GmbH Dispositif et méthode pour coupler et découpler des barres à griffes dans une presse de transfert

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5514227A (en) * 1978-07-15 1980-01-31 Aida Eng Ltd Transfer press
DE3511965A1 (de) * 1985-04-02 1986-10-09 L. Schuler GmbH, 7320 Göppingen Kupplungseinrichtung in leitungen an greiferschienen einer transferpresse
DE3520343A1 (de) * 1985-06-07 1986-12-11 L. Schuler GmbH, 7320 Göppingen Vorrichtung zum kuppeln und entkuppeln von greiferschienenteilstuecken einer transferpresse

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569029A (en) * 1979-07-03 1981-01-29 Aida Eng Ltd Connector of feed bar
AT364223B (de) * 1979-11-19 1981-10-12 Aida Eng Ltd Mehrstufige presse
EP0116684A1 (fr) * 1982-09-24 1984-08-29 L. SCHULER GmbH Presse avec des guides de transfert échangeables simultanément avec les outils
DE3433566A1 (de) * 1983-12-23 1985-07-25 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Pressenausbildung zum automatischen werkzeugwechsel
EP0188776A2 (fr) * 1985-01-22 1986-07-30 Günter Zierpka Dispositif de transfert pour le transport pas à pas de materiau et/ou de pièce à usiner, particulièrement dans les presses
EP0264732A2 (fr) * 1986-10-23 1988-04-27 L. SCHULER GmbH Dispositif et méthode pour coupler et découpler des barres à griffes dans une presse de transfert

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 5, Nr. 53 (M-63)[725], 14. April 1981; & JP-A-56 009 029 (AIDA ENGINEERING K.K.) 29-01-1981 *

Also Published As

Publication number Publication date
DE58902844D1 (de) 1993-01-14
US4924692A (en) 1990-05-15
ES2036736T3 (es) 1993-06-01
DE3812365A1 (de) 1989-10-26
EP0337247A3 (en) 1990-07-25
EP0337247B1 (fr) 1992-12-02

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