EP0633077A1 - Dispositif pour l'avance intermittente de pièces de travail - Google Patents

Dispositif pour l'avance intermittente de pièces de travail Download PDF

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Publication number
EP0633077A1
EP0633077A1 EP94106888A EP94106888A EP0633077A1 EP 0633077 A1 EP0633077 A1 EP 0633077A1 EP 94106888 A EP94106888 A EP 94106888A EP 94106888 A EP94106888 A EP 94106888A EP 0633077 A1 EP0633077 A1 EP 0633077A1
Authority
EP
European Patent Office
Prior art keywords
gripper
movement
gripping
feed
cam
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
EP94106888A
Other languages
German (de)
English (en)
Other versions
EP0633077B1 (fr
Inventor
Uwe Dipl.-Ing Fh Zeibig
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.)
Sander GmbH and Co
Original Assignee
Sander GmbH and Co
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 Sander GmbH and Co filed Critical Sander GmbH and Co
Publication of EP0633077A1 publication Critical patent/EP0633077A1/fr
Application granted granted Critical
Publication of EP0633077B1 publication Critical patent/EP0633077B1/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
    • B21D43/055—Devices comprising a pair of longitudinally and laterally movable parallel transfer bars

Definitions

  • An embodiment of the drive of very considerable importance can consist in that the pivotable levers are held in the gripping position by a hydraulically or pneumatically acting or mechanical spring or similar restoring element and can be pivoted against the restoring force of the restoring element in the open position. In this way, the entire drive for the gripping movement can be made free of play, which increases the precision of the gripping movement accordingly. Furthermore, a drive is effected in one direction only because the opposite movement can be carried out by the restoring force mentioned.
  • the space requirement of the device is small, especially where the workpieces have to be gripped or released, while the drive is provided primarily for opening and closing the gripper rails, but also for their feed outside a corresponding processing machine, in particular a press can.
  • each of two levers 4 which can be pivoted parallel to one another in the plane of movement of the gripper rails 3 or a plane parallel to them, act on each gripper rail 3, as can be seen above all from FIGS. 2 and 3.
  • the levers 4 of the one gripper rail 3 can be pivoted in the opposite direction to those of the other gripper rail 3 in order to alternately move the two gripper rails 3 towards and away from one another. So that this movement can be carried out largely independently of the feed movement, the levers 4 are each coupled to a longitudinal guide 7 of the gripper rails 3 via a sliding element 6.
  • the gripper rails 3 can also be moved relative to the articulation points of the ends 5 of the levers 4 in the feed direction or in the opposite direction.
  • the gripper rails 3 are in turn offset outside of the gripping area and with respect to the tie rods 8, are connected to each other by a feed crossmember 13a or a comparable coupling member and can therefore also have a common feed drive , which can act simultaneously and synchronously on both gripper rails 3 via this feed crossmember 13a.
  • the control cams of the two cams 15 and 17 are offset from one another and configured in their curvature in such a way that the rocker 16 driven by them for the gripping movement on the one hand and the rocker 21 for the advancing movement or retracting movement on the other are coordinated in time, that is to say at least for one Some are staggered in time, each in the final phase one movement can overlap the other movement.
  • the rockers 16 and 21, each driven by the cam disks 15 and 17, are each pivotably connected to a tappet 23, which cooperates with the cam disk via a projection 22 or the like, this being connected to the respective cam disks 15 and 17 interacting gripping plungers 23a and feed plungers 23b according to FIG.
  • the plungers 23a and 23b are in turn coupled via a sliding block 24 or the like to the rocker 16 or 21 and thus on the one hand to the tie rods 8 and on the other hand to the gripper rails 3, but between the rockers 16 and 21 and the rod-shaped parts driven by them a carriage 25 to be described (see in particular FIGS. 4 to 7) is also arranged.
  • the gripping plunger 23a and the feed plunger 23b have guides which run at an angle, in the exemplary embodiment at right angles, to one another, e.g. Linear roller guides 23c are mounted for longitudinal displacement.
  • the longitudinal centers of these guides 23c each intersect the center of the shaft 18 and run radially thereto, as can be clearly seen from FIGS. 10 and 12.
  • the device 1 for the step-by-step advancement of workpieces for example in a press 2 or similar production machine or also for other machining operations to be carried out step-by-step, thus has two gripping parts 3 a or gripping areas for gripping the workpieces 100 that have gripper rails 3 that are used to grasp the Workpieces towards one another and for advancing in this gripping position can be moved together in the feed direction and then release the workpieces by a movement apart and can be adjusted back to the starting position by a return movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)
  • Press Drives And Press Lines (AREA)
  • Pinball Game Machines (AREA)
  • Specific Conveyance Elements (AREA)
  • Feeding Of Workpieces (AREA)
  • Multi-Process Working Machines And Systems (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
EP94106888A 1993-05-08 1994-05-03 Dispositif pour l'avance intermittente de pièces de travail Expired - Lifetime EP0633077B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4315372 1993-05-08
DE4315372A DE4315372C2 (de) 1993-05-08 1993-05-08 Vorrichtung zum schrittweisen Vorschieben von Werkstücken

Publications (2)

Publication Number Publication Date
EP0633077A1 true EP0633077A1 (fr) 1995-01-11
EP0633077B1 EP0633077B1 (fr) 1997-03-19

Family

ID=6487582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94106888A Expired - Lifetime EP0633077B1 (fr) 1993-05-08 1994-05-03 Dispositif pour l'avance intermittente de pièces de travail

Country Status (4)

Country Link
EP (1) EP0633077B1 (fr)
AT (1) ATE150345T1 (fr)
DE (2) DE4315372C2 (fr)
ES (1) ES2100594T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001068327A1 (fr) * 2000-03-11 2001-09-20 Nutek Pte Ltd Transporteur a largeur variable
EP1336440A1 (fr) * 2002-02-19 2003-08-20 Erdrich Beteiligungs GmbH Dispositif pour le mouvement des pièces avec des barres d'amenage
EP1520640A1 (fr) * 2003-10-01 2005-04-06 Schuler Automation GmbH & Co. KG Dispositif de transport de pièces à usiner
WO2005110641A1 (fr) * 2004-05-13 2005-11-24 Erdrich Beteiligungs Gmbh Dispositif pour le deplacement pas a pas de pieces a usiner
EP1626184A2 (fr) 2004-08-14 2006-02-15 Schuler Automation GmbH & Co. KG Dispositif hydraulique
US7234912B2 (en) 2003-10-01 2007-06-26 Schuler Automation Gmbh & Co. Kg Device for the transport of work pieces

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015002496B4 (de) * 2015-02-27 2016-09-22 Sander Automation Gmbh Vorrichtung zum schrittweisen Vorschieben von Werkstücken

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1426039A (en) * 1920-05-20 1922-08-15 Waterbury Farrel Foundry Co Transfer mechanism
GB928719A (en) * 1959-08-24 1963-06-12 Hordern Mason & Edwards Ltd Improvements in or relating to transfer feed mechanism
DE2852929C2 (de) * 1978-12-07 1984-08-09 Günter 7500 Karlsruhe Zierpka Vorschubeinrichtung in Pressen
DE3401704C1 (de) * 1984-01-19 1985-04-11 Günter 7500 Karlsruhe Zierpka Vorschubeinrichtung zum schrittweisen Material- und/oder Werkstücktransport, insbesodere in Pressen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2847273C3 (de) * 1978-10-31 1981-10-08 G. Siempelkamp Gmbh & Co, 4150 Krefeld Plattenpresse mit einer Vorrichtung zum Beschicken der Presse im Zuge der Herstellung von vergüteten Spanplatten
JPS6341304A (ja) * 1986-08-08 1988-02-22 Sumitomo Heavy Ind Ltd メカニカルトランスフアフイ−ダ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1426039A (en) * 1920-05-20 1922-08-15 Waterbury Farrel Foundry Co Transfer mechanism
GB928719A (en) * 1959-08-24 1963-06-12 Hordern Mason & Edwards Ltd Improvements in or relating to transfer feed mechanism
DE2852929C2 (de) * 1978-12-07 1984-08-09 Günter 7500 Karlsruhe Zierpka Vorschubeinrichtung in Pressen
DE3401704C1 (de) * 1984-01-19 1985-04-11 Günter 7500 Karlsruhe Zierpka Vorschubeinrichtung zum schrittweisen Material- und/oder Werkstücktransport, insbesodere in Pressen

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001068327A1 (fr) * 2000-03-11 2001-09-20 Nutek Pte Ltd Transporteur a largeur variable
EP1336440A1 (fr) * 2002-02-19 2003-08-20 Erdrich Beteiligungs GmbH Dispositif pour le mouvement des pièces avec des barres d'amenage
EP1520640A1 (fr) * 2003-10-01 2005-04-06 Schuler Automation GmbH & Co. KG Dispositif de transport de pièces à usiner
DE10345685B4 (de) * 2003-10-01 2005-10-13 Schuler Automation Gmbh & Co.Kg Vorrichtung zum Transport von Werkstücken
US7234912B2 (en) 2003-10-01 2007-06-26 Schuler Automation Gmbh & Co. Kg Device for the transport of work pieces
WO2005110641A1 (fr) * 2004-05-13 2005-11-24 Erdrich Beteiligungs Gmbh Dispositif pour le deplacement pas a pas de pieces a usiner
US7779664B2 (en) 2004-05-13 2010-08-24 Edrich Beteiligungs Gmbh Device for the stepped displacement of work pieces
EP1626184A2 (fr) 2004-08-14 2006-02-15 Schuler Automation GmbH & Co. KG Dispositif hydraulique
DE102004039483B4 (de) * 2004-08-14 2007-03-01 Schuler Automation Gmbh & Co. Kg Hydraulikeinrichtung

Also Published As

Publication number Publication date
DE59402118D1 (de) 1997-04-24
DE4315372C2 (de) 1995-03-09
ES2100594T3 (es) 1997-06-16
DE4315372A1 (de) 1994-12-01
ATE150345T1 (de) 1997-04-15
EP0633077B1 (fr) 1997-03-19

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