EP0116684A1 - Presse avec des guides de transfert échangeables simultanément avec les outils - Google Patents

Presse avec des guides de transfert échangeables simultanément avec les outils Download PDF

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Publication number
EP0116684A1
EP0116684A1 EP83109243A EP83109243A EP0116684A1 EP 0116684 A1 EP0116684 A1 EP 0116684A1 EP 83109243 A EP83109243 A EP 83109243A EP 83109243 A EP83109243 A EP 83109243A EP 0116684 A1 EP0116684 A1 EP 0116684A1
Authority
EP
European Patent Office
Prior art keywords
gripper
press
rails
movement
gripper rails
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
EP83109243A
Other languages
German (de)
English (en)
Other versions
EP0116684B1 (fr
Inventor
Gerald Mikusch
Werner Münch
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 EP0116684A1 publication Critical patent/EP0116684A1/fr
Application granted granted Critical
Publication of EP0116684B1 publication Critical patent/EP0116684B1/fr
Expired 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/50—Bridged by diverse connector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/65—Scarf
    • Y10T403/655—Mirror images

Definitions

  • the invention relates to a press unit, step press and the like.
  • a press having a plurality of tools with at least one press table and a sliding table which can be fixed in the working position for changing the tool and press frame-side gripper rails and tool-side gripper rails for workpiece transport from the processing station to the processing station which can be coupled to and disconnected from one another by a movement guided against one another, and with a controllable actuator for locking the connection via a locking element at least during press operation.
  • the dimensions and settings of the gripping tools are matched to the workpiece to be gripped and can thus be directly assigned to the tool or set of tools in a press unit.
  • the gripper rails are exchanged for grippers and gripper rails that are matched to the new workpiece when the tool or tool set is changed. For this purpose, the gripper rails must be uncoupled from the drive.
  • a known device for the firm, form-fitting connection of rods in tool holding devices is shown in GB - P S 1 101 838.
  • the ends of the rods to be connected have been provided with claws which engage in one another in a form-fitting manner; a sleeve having a grip part is to be fired via the connection ben, which is to be brought up to a stop and thus holds the connection against unwanted loosening.
  • the document contains no references to the automation of the closing and opening and securing of the connection; rather, the connection must be made and released manually.
  • This device can only be used to a limited extent in press units, since the gripper rail linkages used there have to be guided, but the transfer movement of the gripper rails is so great that gripper rails with connections of the tool sets constructed in this way cannot be used.
  • a step press has been described with a transport device for conveying the workpieces from the processing station to the processing station.
  • the transport movement is derived from the ram drive.
  • Each press ram is assigned a sliding table which can be moved relative to the associated press table and which carries the lower tool of at least one tool set.
  • the transport device assigned to a tool set or the tool sets can be uncoupled from the ram-side drive above the floor and can be exchanged with the tool set (s).
  • the gripper rails are divided into gripper rails on the tool side, which can also be exchanged with the tool, and gripper rails on the press frame side, which remain in the press assembly.
  • the gripper rail parts can be connected to one another via a pin-hole connection.
  • the connection can be repeatedly canceled and re-established by lifting and lowering a plate carrying the tools.
  • an oil pressure cylinder with a piston is attached to the frame-side gripper rail, which acts when acted on a gun-elastic member that presses against the Hole edge of the tool-side perforation of the positive connection.
  • the structure of the safety device is accessible from all sides and thus exposed to the harsh operating conditions. The excellent components prevent that Use of this device between the tool sets or tools within the press.
  • the object of the invention is to automate the changing process of the gripper rails at the same time as the changing process of the tools.
  • a retrofittable system is to be created, which is possible both in presses without lifting the tool sets when changing tools and in presses with lifting the tool sets or lifting the gripper rails for changing them.
  • the locking means are arranged within cavities of the gripper rails and consist essentially of the actuator for the locking movement and the releasing movement, a molded part accommodated in the press frame-side gripper rail and a counterpart accommodated in the tool-side gripper rail, one of which is displaceably mounted by the actuator for engaging in the Fixed fitting with positive connection of gripper rails that belong together.
  • the number of actuators is reduced to twice the number of interfaces.
  • the other claims show advantageous embodiments of the invention.
  • the invention can be used both for workpiece transport with gripping tools attached to two gripper rails, opposing each other in pairs and jointly attacking the workpiece, as well as for gripper rails with one gripping tool per workpiece access and in particular also for activatable gripping tools on a gripper rail with vertical gripper access. Additional advantages also result from the following description of exemplary embodiments of the invention shown in the drawing.
  • Fig. 1, 1 denotes an area of a press, which is generally referred to as the working space of a press and in which a number of tools 6, 7 are arranged, with the press stands 2, a sliding table 3 which can be locked on the press table and which here covered the press table, and with tools made of upper tool parts 7 and lower tool parts 6, which are oriented on the sliding table or tables and can be moved out of the working space with this and with several sliding tables.
  • lifting cylinders are positioned to raise and lower the sliding table. The invention can also be used if the sliding table cannot be raised for moving.
  • Gripper rails 12, 13 are used for the workpiece transport between the work stations of a press line or a multi-stage press, which can be provided in pairs, for example for horizontal workpiece access, but also individually, for example for vertical workpiece access.
  • the gripper rails can be separated from one another in the region of the separation points indicated by 16 into press-side gripper rails 12 and tool-side gripper rails 13.
  • the gripper rails are in slide guides 14 in the direction of the transfer movement and with them in gripping and lifting and lowering movements to adjust.
  • Lifting cylinders 11 are used for lifting and lowering the workpieces in the workstations, with which, as with the lifting cylinders 8 of the sliding tables, the gripper rails 12 are lifted out of the gripper rails 13 (FIG.
  • a locking element 51 is displaceably mounted in the stiffening piece 50 in the direction of arrow 58 and an actuator 56 which is connected to the locking element by means of a push rod 53.
  • a counterforming piece 52 is permanently installed in the other associated gripper rail end for receiving the locking element which can be inserted into its recess 61 when it is coupled.
  • the actuator 56 can be a double-acting hydraulic cylinder piston which can be controlled by the hoses 57 in the sense of an opening - closing movement for the locking element.
  • the locking member is guided in the recess 60 of the stiffening piece and essentially in the front area 62.
  • the arrangement of actuator 56, push rod 53 and locking element 51 in one gripper rail end, which is preferably to be assigned to the press-side gripper rail part 12, and the counterform piece 52 in the other gripper rail end, extends in cavities 73 of the rectangular or square gripper rails, for example, in their longitudinal extension by arrow 63.
  • the gripper rails ends for firm connection in the transfer direction 18 teeth 66, single tooth-like, for example, an a usge- staltung with the projection or tooth 67 and 68 with the recesses 69 for receiving the tooth of the to be coupled gripper rail end.
  • the linkage is shown broken away.
  • the researchedkuppelnde and below shown gripper rail end has been shown rotated in a horizontal plane through 180 angular degrees for a better insight into the recess side 61.
  • the ends of the gripper rails 48 and 49 are coupled in the direction of the double arrows and uncoupled, ie in the direction of the stroke 17 of the T ransfer Gay, wherein the toothing shown interlocks.
  • FIG. 5 Another configuration of the ends of the gripper rails is shown in FIG. 5.
  • Several teeth in the manner of toothed racks 66 are attached to each gripper rail with the foot and head lines 71, 72 which are perpendicular to the uncoupling movement 49 (FIG. 4) or to the lifting directions 17 run.
  • the positive connection formed in the dome state is secured by the locking member 51 guided in direction 58.
  • FIG. 6 shows a partial front view and a partial side view of a gripper rail with the press-side gripper rail part 13 for a vertical infeed movement 19 of, for example, active gripper pliers 74.
  • the gripper rail 13 remaining on the tool when the tool is changed is removed from the frame-side gripper rail 12 by lifting the frame-side gripper rail 12. as shown here, or can be uncoupled and coupled by lowering if the teeth 67, 68 forming the positive connection are interchanged.
  • the dash-dotted representation indicates the position of the gripping tools 74 when removing or depositing the workpiece from or into the tool.
  • the entire transfer device can be switched off by a so-called summation circuit.
  • the sum circuit causes a command to be issued when a switching element is actuated
  • a switching element For example, the valve for longitudinal gripper movement, the gripper rails remain in the feed end position, the valve for transverse gripper movement, the gripper rails open or remain in the open position, and the valve for the lifting and lowering movement, so that the gripper rails are in a lowered position be led or remain in this, is given.
  • 2 and 3 serve to illustrate the movements of the gripper rails during transfer.
  • Fig. 2 it is shown how via an adjusting rod 21 which is pivotally mounted in the articulation point 22 on the articulated lever 27, which is pivotally mounted in a frame fixed point 23 and is articulated on the articulated lever 26.
  • the articulation rod 28 is raised, which acts on the gripper rail 12 via a slide bearing 37 in the sense of a lifting movement in the direction of the arrow 17.
  • the opening and closing movement takes place via the drive rod 31, a bevel gear 32, the pinion gear 35 with movement conversion between the pinion 36 and the two toothed racks 33, of which the toothed rack shown here on the right is articulated to the carriage 30 carrying the gripper rail via the guide 14 .
  • the slide is arranged so as to be longitudinally movable via guide pins 29 in an elongated hole 34 of a support plate of the track 2.
  • FIG. 3 shows a possibility of converting a rotary movement into the transfer movement 18 of the gripper rail 12 with a drive lever 38 which can be pivoted about the pivot point 39 and a slide 41 which is adjustable in guides 42.
  • the transfer movement 18 takes place perpendicular to the movements for the lifting and lowering 17 and for the opening and closing movement 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Manipulator (AREA)
  • Specific Conveyance Elements (AREA)
  • Press Drives And Press Lines (AREA)
EP83109243A 1982-09-24 1983-09-19 Presse avec des guides de transfert échangeables simultanément avec les outils Expired EP0116684B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823235308 DE3235308A1 (de) 1982-09-24 1982-09-24 Pressen-einheit mit zugleich mit dem werkzeugwechsel auszutauschenden greiferschienen
DE3235308 1982-09-24

Publications (2)

Publication Number Publication Date
EP0116684A1 true EP0116684A1 (fr) 1984-08-29
EP0116684B1 EP0116684B1 (fr) 1987-05-06

Family

ID=6173998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83109243A Expired EP0116684B1 (fr) 1982-09-24 1983-09-19 Presse avec des guides de transfert échangeables simultanément avec les outils

Country Status (4)

Country Link
US (1) US4557133A (fr)
EP (1) EP0116684B1 (fr)
BR (1) BR8305229A (fr)
DE (2) DE3235308A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0210745A2 (fr) * 1985-07-22 1987-02-04 Avondale Industries, Inc. Dispositif pour détacher automatiquement des barres de transfert d'une presse transfert
EP0337247A2 (fr) * 1988-04-14 1989-10-18 L. SCHULER GmbH Presse à étages multiples avec des barres de transfert divisibles en longueur
EP0531523A1 (fr) * 1990-05-25 1993-03-17 Kabushiki Kaisha Komatsu Seisakusho Dispositif de blocage pour alimentateur de transfert

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3501946A1 (de) * 1985-01-22 1986-07-24 Günter 7500 Karlsruhe Zierpka Transfereinrichtung zum schrittweisen material- und/oder werkstuecktransport, insbesondere in pressen
DE3507676A1 (de) * 1985-03-05 1986-09-11 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Vorrichtung zum verschieben von greifern auf den greiferschienen einer stufenpresse
JPS63171227A (ja) * 1987-01-09 1988-07-15 Honda Motor Co Ltd トランスフアプレスマシンにおけるハンドリングバ−の搬出方法及びその装置
JPS63207425A (ja) * 1987-02-23 1988-08-26 Honda Motor Co Ltd 金型の交換方法
DE3733881A1 (de) * 1987-10-07 1989-04-20 Guenter Zierpka Kupplungsvorrichtung zum festen, jedoch wahlweise trennbaren verbinden von greiferschienenabschnitten einer transfereinrichtung zum schrittweisen material- und/oder werkstuecktransport
GB2211002B (en) * 1987-12-15 1992-01-08 Amada Co Ltd Device and method for controlling a manipulator for a plate bending machine
DE3805036C1 (fr) * 1988-02-18 1989-07-06 Glyco-Metall-Werke Daelen & Loos Gmbh, 6200 Wiesbaden, De
DE3822473A1 (de) * 1988-07-02 1990-01-04 Schuler Gmbh L Vorrichtung zum kuppeln und entkuppeln von greiferschienenteilen
DE3824058C2 (de) * 1988-07-15 1994-10-06 Mueller Weingarten Maschf Transportvorrichtung in einer Stufenpresse
DE3905068C2 (de) * 1989-02-18 1999-07-22 Schuler Pressen Gmbh & Co Umsetzeinrichtung in einer Transferpresse o. dg. Umformmaschine
US4963052A (en) * 1989-08-01 1990-10-16 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Mechanical end joint system for connecting structural column elements
JP3090789B2 (ja) * 1992-08-24 2000-09-25 アイダエンジニアリング株式会社 トランスファプレス
US5842386A (en) * 1992-11-23 1998-12-01 Kabushiki Kaisha Komatsu Seisakusho Locking device for transfer feeder
CN105583315A (zh) * 2015-12-25 2016-05-18 东莞市瑞辉机械制造有限公司 一种冲压机及其可拆卸横杆

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795130A (en) * 1971-11-08 1974-03-05 Hufford Industries Mounting device for portable loaders
DE2900526A1 (de) * 1978-07-15 1980-01-24 Aida Eng Ltd Stufenpresse
DE3037998A1 (de) * 1979-12-27 1981-07-02 VEB Ingenieurbetrieb für Rationalisierung, DDR 9010 Karl-Marx-Stadt Mechanische greifervorschubeinrichtung fuer starr verkettete fertigungsstrassen

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US1629317A (en) * 1926-11-22 1927-05-17 Mrs A G Kerrison Foldable bedspring
US2755115A (en) * 1950-05-17 1956-07-17 Karl J Kollmann Shaft coupling
GB1059967A (en) * 1962-12-21 1967-02-22 Lucas Industries Ltd A method of, and means for, interconnecting externally screw-threaded shafts
US3318099A (en) * 1964-07-06 1967-05-09 Robbins & Assoc James S Adjustable tunnel sets
GB1101838A (en) * 1965-05-11 1968-01-31 Controlled Engineering Thorp A Means for detachably connecting tubes, rods and similar articles
NO116451L (fr) * 1966-02-21 1900-01-01
US3387865A (en) * 1966-08-29 1968-06-11 Northrop Corp Drill string concept
GB1321846A (en) * 1969-12-23 1973-07-04 Schuler Gmbh L Transfer press
US4124317A (en) * 1976-09-20 1978-11-07 Metalworks Limited Coupling means
SU614219A1 (ru) * 1977-01-18 1978-07-05 Научно-исследовательский и проектно-конструкторский институт по добыче полезных ископаемых открытым способом Замковое соединение буровых штанг
JPS5514227A (en) * 1978-07-15 1980-01-31 Aida Eng Ltd Transfer press
US4286642A (en) * 1979-04-09 1981-09-01 Barry Wright Corporation Isolation connection

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795130A (en) * 1971-11-08 1974-03-05 Hufford Industries Mounting device for portable loaders
DE2900526A1 (de) * 1978-07-15 1980-01-24 Aida Eng Ltd Stufenpresse
DE3037998A1 (de) * 1979-12-27 1981-07-02 VEB Ingenieurbetrieb für Rationalisierung, DDR 9010 Karl-Marx-Stadt Mechanische greifervorschubeinrichtung fuer starr verkettete fertigungsstrassen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0210745A2 (fr) * 1985-07-22 1987-02-04 Avondale Industries, Inc. Dispositif pour détacher automatiquement des barres de transfert d'une presse transfert
EP0210745A3 (fr) * 1985-07-22 1987-06-03 Avondale Industries, Inc. Dispositif pour détacher automatiquement des barres de transfert d'une presse transfert
EP0337247A2 (fr) * 1988-04-14 1989-10-18 L. SCHULER GmbH Presse à étages multiples avec des barres de transfert divisibles en longueur
EP0337247A3 (en) * 1988-04-14 1990-07-25 L. Schuler Gmbh Multistage press having transfer bars divisible in their length
EP0531523A1 (fr) * 1990-05-25 1993-03-17 Kabushiki Kaisha Komatsu Seisakusho Dispositif de blocage pour alimentateur de transfert
EP0531523A4 (en) * 1990-05-25 1993-10-20 Kabushiki Kaisha Komatsu Seisakusho Locking device of transfer feeder

Also Published As

Publication number Publication date
DE3371298D1 (en) 1987-06-11
EP0116684B1 (fr) 1987-05-06
BR8305229A (pt) 1984-05-02
US4557133A (en) 1985-12-10
DE3235308A1 (de) 1984-03-29

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