EP0188648A1 - Transfer press - Google Patents

Transfer press Download PDF

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Publication number
EP0188648A1
EP0188648A1 EP85100729A EP85100729A EP0188648A1 EP 0188648 A1 EP0188648 A1 EP 0188648A1 EP 85100729 A EP85100729 A EP 85100729A EP 85100729 A EP85100729 A EP 85100729A EP 0188648 A1 EP0188648 A1 EP 0188648A1
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EP
European Patent Office
Prior art keywords
lead screw
shafts
bearing bush
gripper
support element
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
EP85100729A
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German (de)
French (fr)
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EP0188648B1 (en
Inventor
Wolfgang Hübner
Gerald Mikusch
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
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L Schuler GmbH
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Publication date
Application filed by L Schuler GmbH filed Critical L Schuler GmbH
Priority to DE8585100729T priority Critical patent/DE3583332D1/en
Priority to EP19850100729 priority patent/EP0188648B1/en
Publication of EP0188648A1 publication Critical patent/EP0188648A1/en
Application granted granted Critical
Publication of EP0188648B1 publication Critical patent/EP0188648B1/en
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    • 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 a transfer press with workpieces converting gripper rails in the processing stages, with guide means and drive means for moving the gripper rails at least in and against the transfer direction and in the closing-opening directions in time with the ram movement and with an adjusting device for changing the initial width of the gripper rails .
  • gripper-fitted rails that convey the workpieces from the input station to the first processing stage, between the processing stages and from the last processing stage to an output area.
  • the gripper rails are to be driven in at least two axes - moving the workpieces and closing-opening for gripping and releasing the workpieces - in synchronous movement with one another.
  • the tools required for punching, shaping and trimming are generally installed aligned with the longitudinal center of the transfer press. Often, the center of gravity of the workpieces is not centered on the tool and therefore not on the longitudinal center of the transfer press, and because of the shape of the workpieces the gripping tongs on the workpieces are often not symmetrical to the longitudinal center of the transfer press.
  • the gripper rails are then loaded unevenly. One gripper rail is to be equipped with longer gripping tools, the other gripper rail is to be equipped with shorter gripping tools.
  • the press described in DF-OS 31 03 046 has an adjustment tap in the linkage the gripper rails score a drive system in the area of the stand consisting of an adjustment motor with a coupling, connecting shafts and bevel gear drives.
  • the gripper rails articulated in the articulation points for the closing-open movement are mounted so as to be longitudinally displaceable on slide-like movable support elements; the support elements can be driven transversely with the plunger movement via a rack and pinion drive.
  • a spindle is introduced, the position of the gripper rails relative to one another in the sense of a larger or smaller starting width being adjustable by the adjusting motor.
  • Changing the initial width of the gripper rails is only possible by simultaneously adjusting both gripper rails to the new workpiece dimensions.
  • the one-sided attack of the adjusting means for changing the initial width of the gripper rails requires larger protrusion of the press structure in the case of larger changes in width, for example greater than 400 nm, since the spindle must be supported and thus must be guided over the length of the adjustment dimension.
  • the object of the invention is to provide a device for changing the initial width of the gripper rails, which is independent of the drive for the closing-open movement, which allows further training for the individual setting of the starting position of each gripper rail and which uses the space between the gripper rails.
  • each gripper rail in each articulation area for moving in the closing-open directions via a support element, a bearing bush rotatably mounted in the support element, at least one cam part which is effective when the bearing bush rotates, and one cam follower part in operative connection with a push part stands that each thrust part is movable in the closing-opening directions and articulated on the press-side drive means and that the bearing bush can be rotated by a servomotor via rotary transmission means.
  • a particular advantage of the invention can be seen in the intermediate member designed as a bearing bush between the support element and the lead screw, which allows the output width of the gripper rails to be adjusted by means of a cam part and one or more cam follower parts between the bearing bush and the lead screw or also between the bearing bush and the support element.
  • the multi-part nature of the La The positioning of the lead screw in the support element by means of the bearing bush ensures high adjustment accuracy with a long service life.
  • Claim 2 characterizes a first preferred embodiment according to the invention, which permits a synchronous change in the initial width of the gripper rails and a separate change in the initial position thereof using conventional components.
  • Claim 3 characterizes a further embodiment according to the invention with a curve follower part introduced between the support element and the curve part designed as a lead screw.
  • this embodiment of the invention also makes further development within the meaning of claims 4 and 5 possible.
  • the features of claim 4 characterize the synchronous adjustment drive of both gripper rails in all articulation areas.
  • the features according to claim 5 characterize the possibility of a separate change in the starting position of the gripper rails by different adjustment dimensions.
  • each gripper rail 1 is supported in each of its articulation areas, area of each bracket 2, via a respective support element 3, in this by means of guide means 4 in the direction of transfer of the workpieces, a direction perpendicular to the plane of the drawing, adjustable by a press-side transfer drive (not shown) and movable by means of the supporting elements 3 and roller guides, rollers 6 on the supporting elements 3 and running rails 7 on the console 2, in the closing-open directions indicated by an arrow 8 .
  • the movement drive of the gripper rails 1 in the closing-opening directions 8 takes place from a press-driven, for example up and down movable drive rod 9 via rotatable in the bracket 2 angular lever 11, one tab 12 and one in each rail 7 in the Closing-open directions 8 slidably mounted, roller-guided slide 13.
  • a coupling rod 19 is arranged for the synchronous opposite movement of the gripper rails 1 in the closing-open directions 8.
  • a lead screw 14 is rotatably mounted, which extends into the area of the associated support element 3 and in a central bore of the support element 3 via a bearing bush 16 or directly in the support element 3 is stored.
  • the lead screw 14 can be provided with a thread-like guide groove in which, as shown, in the bearing bush 16 or in the support element 3, rotatably mounted balls or rollers 17 are guided to take the support element 3 with the movement of the drive means from the drive rod 9, angle lever 11 , Tab 12 and slide 13 in the closing-open directions 8.
  • each support element 3 to the lead screw 14 for changing the starting position of the gripper rails 1 can, as shown, by rotating the bearing bush 16 in the support element 3 or in the event of failure the bushing 16 in a second embodiment by rotating the lead screw 14 with a corresponding rotary bearing of this in the carriage 13.
  • Lead screw 14 and balls or rollers 17 are mentioned as examples.
  • Other configurations of curve part 14 and curve follower part 17 are conceivable, in which, for example, the bearing bush 16 is rotatable on the lead screw 14 but cannot be displaced axially and is provided with a curve part, for example a spiral guide groove, which is provided with a curve follower part, for example a pin in the support element 3 cooperates.
  • the rotation of the bearing bush 16 or of a rotatable lead screw 14 according to the second embodiment mentioned takes place via a gearwheel 21 formed or attached to the end regions thereof, a second, in the support element 3 rotatably mounted gear 22 which engages in the gear 21, a longitudinally profiled shaft 23 which is rotatably mounted on the bracket 2 and which is guided through the same profiling of the inner bore 20 in the gear 22, the longitudinally profiled shaft 23 extending over the total adjustment range of the support element 3 extends.
  • the longitudinally profiled shaft 23 is operatively connected via shafts or cardan shafts 24 and angular gear 26 to a servomotor 27, FIG. 1, common to all longitudinally profiled shafts 23. Additional angular gears 28 are assigned to the individual articulation areas of the gripper rail closing-opening movements.
  • Fig. 2 sees, in contrast to Fig. 1, a separate drive each gripper rail 1, 1 'in front of each with an actuator 27, 27' and angular gear 28, 28 'and shafts or cardan shafts 24, 24' in double number, whereby each gripper rail 1, 1 'with appropriate control of the respective servo motor 27, 27' individually (separately) for a change in the basic width taking into account, for example the center of gravity of the workpieces is articulated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

In a transfer press, workpieces are transferred to the processing stages by means of gripper rails (1). After the tool change, the starting width of the gripper rails (1) has to be set for workpieces of different sizes. In each articulation point for the movements in the closing/opening directions (8), each gripper rail (1) is in operative connection with a lead screw (14) via a carrying element (3), a bearing bush (16) rotatably mounted in the carrying element (2), a cam part (14) effective when the bearing bush (16) is rotated and a cam-follower part (17). The lead screw (14) can be adjusted in the closing/opening directions (8) via driving means (9, 11, 12, 13). The bearing bush (16) is operatively connected to a servomotor (27) by means of rotation-transmitting means (14, 21, 22, 23, 24, 26, 28). <IMAGE>

Description

Die Erfindung betrifft eine Transferpresse mit Werkstücke in den Bearbeitungsstufen umsetzenden Greiferschienen, mit Führungsmitteln und Antriebsmitteln für ein Bewegen der Greiferschienen zumindest in und entgegen der Umsetzrichtung und in den Schließ-Öffnen-Richtungen im Takt der Stößelbewegung und mit einer Einstellvorrichtung zur Änderung der Ausgangsweite der Greiferschienen.The invention relates to a transfer press with workpieces converting gripper rails in the processing stages, with guide means and drive means for moving the gripper rails at least in and against the transfer direction and in the closing-opening directions in time with the ram movement and with an adjusting device for changing the initial width of the gripper rails .

In Transferpressen sind greiferbestüakte Schienen vorhanden, die die Werkstücke aus der Eingabestation in die erste Bearbeitungsstufe, zwischen den Bearbeitungsstufen und aus der letzten Bearbeitungsstufe in einen Ausgabebereich fördern. Die Greiferschienen sind in zumindest zwei Achsen - Umsetzen der Werkstücke und Schließen-Öffnen zum Erfassen und Freigeben der Werkstücke - in zueinander synchroner Bewegung anzutreiben.In transfer presses there are gripper-fitted rails that convey the workpieces from the input station to the first processing stage, between the processing stages and from the last processing stage to an output area. The gripper rails are to be driven in at least two axes - moving the workpieces and closing-opening for gripping and releasing the workpieces - in synchronous movement with one another.

Die für das Stanzen, Formen und Beschneiden erforderlichen Werkzeuge werden im allgemeinen zur Längsmitte der Transferpresse ausgerichtet eingebaut. Oftmals liegt der Masseschwerpunkt der Werkstücke nicht mittig zum Werkzeug und somit nicht auf der Längsmitte der Transferpresse und es befinden sich zudem die Angriffspunkte der Greifzangen an den Werkstücken wegen der Form der Werkstücke oftmals nicht symmetrisch zur Längsmitte der Transferpresse. Die Greiferschienen werden dann ungleichmäßig beansprucht. Die eine Greiferschiene ist mit längeren Greifzeugen, die andere Greiferschiene ist mit kürzeren Greifzeugen zu bestücken.The tools required for punching, shaping and trimming are generally installed aligned with the longitudinal center of the transfer press. Often, the center of gravity of the workpieces is not centered on the tool and therefore not on the longitudinal center of the transfer press, and because of the shape of the workpieces the gripping tongs on the workpieces are often not symmetrical to the longitudinal center of the transfer press. The gripper rails are then loaded unevenly. One gripper rail is to be equipped with longer gripping tools, the other gripper rail is to be equipped with shorter gripping tools.

Zur Anpassung der Hublage (Änderung der Ausgangsweite) an andere Werkstückabmessungen nach einem Werkzeugwechsel weist die in der DF-OS 31 03 046 beschriebene Presse zum Verstellabgriff in den Anlenkpunkten der Greiferschienen im Bereich der Ständer ein Antriebssystem auf aus einem Verstellmotor mit einer Kupplung, Verbindungswellen und Kegelradgetrieben. Die in den Anlenkpunkten für die Schließ-Öffnen-Bewegung angelenkten Greiferschienen sind auf schlittenartig bewegbaren Tragelementen längsverschieblich gelagert; die Tragelemente sind mit der Stößelbewegung über einen Zahnstangen-Ritzel-Antrieb quer dazu antreibbar. In dem gemeinsamen Anlenkpunkt von Stößel und Verstellmotor ist eine Spindel eingebracht, bei deren Verstellung durch den Verstellmotor die Lage der Greiferschienen zueinander im Sinne einer größeren oder geringeren Ausgangsweite einstellbar ist. Die Änderung der Ausgangsweite der Greiferschienen ist nur durch gleichzeitiges Verstellen beider Greiferschienen an die neuen Werkstückabmessungen möglich. Der einseitige Angriff der Einstellmittel zur Änderung der Ausgangsweite der Greiferschienen erfordert bei größeren Weitenänderungen, z.B. größer 400 nm, eine seitlich überstehende Ausladung des Pressenaufbaues, da die Spindel gelagert und somit über die Länge des Verstellmaßes geführt werden muß.In order to adapt the stroke position (change of the initial width) to other workpiece dimensions after a tool change, the press described in DF-OS 31 03 046 has an adjustment tap in the linkage the gripper rails score a drive system in the area of the stand consisting of an adjustment motor with a coupling, connecting shafts and bevel gear drives. The gripper rails articulated in the articulation points for the closing-open movement are mounted so as to be longitudinally displaceable on slide-like movable support elements; the support elements can be driven transversely with the plunger movement via a rack and pinion drive. In the common pivot point of the plunger and adjusting motor, a spindle is introduced, the position of the gripper rails relative to one another in the sense of a larger or smaller starting width being adjustable by the adjusting motor. Changing the initial width of the gripper rails is only possible by simultaneously adjusting both gripper rails to the new workpiece dimensions. The one-sided attack of the adjusting means for changing the initial width of the gripper rails requires larger protrusion of the press structure in the case of larger changes in width, for example greater than 400 nm, since the spindle must be supported and thus must be guided over the length of the adjustment dimension.

Die Aufgabe der Erfindung liegt in der Schaffung einer Vorrichtung zur Änderung der Ausgangsweite der Greiferschienen, die von Antrieb für die Schließ-Öffnen-Bewegung unabhängig ist, die eine Weiterbildung für die Einzeleinstellung der Ausgangslage jeder Greiferschiene zuläßt und die den Freiraum zwischen den Greiferschienen nutzt.The object of the invention is to provide a device for changing the initial width of the gripper rails, which is independent of the drive for the closing-open movement, which allows further training for the individual setting of the starting position of each gripper rail and which uses the space between the gripper rails.

Diese Aufgabe ist dadurch gelöst, daß jede Greiferschiene in jedem Anlenkbereich für ein Bewegen in den Schließ-Öffnen-Richtungen über ein Tragelement, eine drehbar in dem Tragelement gelagerte Lagerbuchse, zumindest je einem bei Drehung der Lagerbuchse wirksamen Kurventeil und Kurvenfolgerteil mit einem Schubteil in Wirkverbindung steht, daß jeder Schubteil in den Schließ-Öffnen-Richtungen bewegbar und an den pressenseitigen Antriebsmitteln angelenkt ist und daß die Lagerbuchse über Drehübertragungsmittel von einem Stellmotor drehbeaufschlagbar ist.This object is achieved in that each gripper rail in each articulation area for moving in the closing-open directions via a support element, a bearing bush rotatably mounted in the support element, at least one cam part which is effective when the bearing bush rotates, and one cam follower part in operative connection with a push part stands that each thrust part is movable in the closing-opening directions and articulated on the press-side drive means and that the bearing bush can be rotated by a servomotor via rotary transmission means.

Ein besonderer Vorteil der Erfindung ist in dem als Lagerbuchse ausgebildeten Zwischenglied zwischen Tragelement und leitspindel zu sehen, das eine Verstellung der Ausgangsweite der Greiferschienen durch einen Kurventeil und einen oder mehrere Kurvenfolgerteile zwischen der Lagerbuchse und der Leitspindel oder auch zwischen der Lagerbuchse und dem Tragelement zuläßt. Die Mehrteiligkeit der Lagerung der Leitspindel in dem Tragelement vermittels der Lagerbuchse gewährleistet eine hohe Verstellgenauigkeit bei langer Lebensdauer.A particular advantage of the invention can be seen in the intermediate member designed as a bearing bush between the support element and the lead screw, which allows the output width of the gripper rails to be adjusted by means of a cam part and one or more cam follower parts between the bearing bush and the lead screw or also between the bearing bush and the support element. The multi-part nature of the La The positioning of the lead screw in the support element by means of the bearing bush ensures high adjustment accuracy with a long service life.

Anspruch 2 kennzeichnet eine erste bevorzugte Ausgestaltung nach der Erfindung, die eine synchrone Änderung der Ausgangsweite der Greiferschienen und eine separate Veränderung deren Ausgangslage zuläßt unter Verwendung herkömmlicher Bauelemente.Claim 2 characterizes a first preferred embodiment according to the invention, which permits a synchronous change in the initial width of the gripper rails and a separate change in the initial position thereof using conventional components.

Anspruch 3 kennzeichnet eine weitere Ausgestaltung nach der Erfindung mit zwischen dem Tragelement und dem als Ieitspindel ausgebildeten Kurventeil eingebrachtem Kurvenfolgerteil. Neben dem Vorteil der geringeren Bauteileanzahl und des geringeren Fertigungs- und Montageaufwandes ermäglicht auch diese Ausgestaltung der Erfindung eine Weiterbildung im Sinne der Ansprüche 4 und 5.Claim 3 characterizes a further embodiment according to the invention with a curve follower part introduced between the support element and the curve part designed as a lead screw. In addition to the advantage of the lower number of components and the lower manufacturing and assembly costs, this embodiment of the invention also makes further development within the meaning of claims 4 and 5 possible.

Die Merkmale nach dem Anspruch 4 kennzeichnen den synchronen Verstellantrieb beider Greiferschienen in allen Anlenkbereichen.The features of claim 4 characterize the synchronous adjustment drive of both gripper rails in all articulation areas.

Die Merkmale nach dem Anspruch 5 kennzeichnen die Möglichkeit einer separaten Veränderung der Ausgangslage der Greiferschienen um unterschiedliche Verstellmaße.The features according to claim 5 characterize the possibility of a separate change in the starting position of the gripper rails by different adjustment dimensions.

Mit Hilfe der Merkmale nach dem Anspruch 6 ist die Anzahl an Drehwellen, Lagerstellen und Getrieben für die Drehübertragung zu ver- ringern.By means of the features of claim 6 is the number of rotary shafts, bearings and gears for the transmission of rotation to comparable rin g ren.

Die Erfindung wird im folgenden anhand von Ausführungsbeispielen in den Skizzen näher erläutert. Es zeigen:

  • Fig. 1 eine erste Einstellvorrichtung nach der Erfindung,
  • Fig. 2 eine zweite Einstellvorrichtung nach der Erfindung und
  • Fig. 3 Einzelheiten der Drehübertragungselemente der Einstellvorrichtungen in einer im Vergleich zu den Fig. 1 und 2 vergrößerten Darstellung.
The invention is explained in more detail below on the basis of exemplary embodiments in the sketches. Show it:
  • 1 shows a first adjusting device according to the invention,
  • Fig. 2 shows a second adjusting device according to the invention and
  • Fig. 3 details of the rotary transmission elements of the adjusting devices in an enlarged view compared to FIGS. 1 and 2.

Von der Transferpresse sind nur die Teile dargestellt, die zum Verständnis der Erfindung erforderlich sind. In den Figuren werden für gleiche bzw. gleichwirkende Teile gleiche Kennziffern verwendet.Only the parts of the transfer press that are required to understand the invention are shown. In the figures, the same reference numbers are used for the same or equivalent parts.

In den Anlenkbereichen für die Übertragung der Schließ-öffnen-Bewegungen auf Greiferschienen 1 sind pressenfeste Konsolen 2 angebracht. Jede Greiferschiene 1 ist in jedem ihrer Anlenkbereiche, Bereich jeder Konsole 2, über je ein Tragelement 3 abgestützt, in diesem vermittels Führungsmitteln 4 in Umsetzrichtung der Werkstücke, einer Richtung senkrecht zur Zeichenebene, von einem pressenseitigen Transferantrieb (nicht dargestellt) verstellbar und vermittels der Tragelemente 3 und Rollenführungen, Rollen 6 an den Tragelementen 3 und Laufschienen 7 an der Konsole 2, in den durch einen Pfeil 8 angegebenen Schließ-öffnen-Richtungen bewegbar. Der Bewegungsantrieb der Greiferschienen 1 in den Schließ-Öffnen-Richtungen 8 erfolgt von einer pressegetriebenen, z.B. auf- und abwärts bewegbaren Antriebsstange 9 aus über drehbar in der Konsole 2 gelagerte Winkelhebel 11, je eine Lasche 12 und je einen in jeder Laufschiene 7 in den Schließ-öffnen-Richtungen 8 verschieblich gelagerten, rollengeführten Schlitten 13. Zwischen jeweils einem Winkelhebel 11 und einem zweiarmigen Umlenkhebel 18 ist eine Koppelstange 19 zur synchronen gegenläufigen Bewegung der Greiferschienen 1 in den Schließ-Öffnen-Richtungen 8 angeordnet. In jedem Schlitten 13 ist, bezogen auf die in den Figuren gezeigten Ausführungsformen, jeweils eine Leitspindel 14 drehfest gelagert, die bis in den Bereich des zugehörenden Tragelementes 3 geführt und in einer zentralen Bohrung des Tragelementes 3 über eine Lagerbuchse 16 oder direkt in dem Tragelement 3 gelagert ist. Die Leitspindel 14 kann mit einer gewindeartigen Führungsnut versehen sein, in der, wie gezeigt, in der Lagerbuchse 16 oder in dem Tragelement 3, drehbeweglich gelagerte Kugeln oder Rollen 17 geführt werden zur Mitnahme des Tragelementes 3 bei Bewegung der Antriebsmittel aus Antriebsstange 9, Winkelhebel 11, Lasche 12 und Schlitten 13 in den Schließ-öffnen-Richtungen 8. Die relative Lage jedes Tragelementes 3 zur Leitspindel 14 zur Veränderung der Ausgangslage der Greiferschienen 1 kann zum einen, wie gezeigt, durch Drehung der Lagerbuchse 16 in dem Tragelement 3 oder bei Fortfall der Legerbuchse 16 in zweiter Ausgestaltung durch Drehung der Leitspindel 14 bei entsprechender Drehlagerung dieser in dem Schlitten 13 erfolgen. Leitspindel 14 und Kugeln bzw. Rollen 17 sind beispielhaft genannt. Es sind andere Ausgestaltungen von Kurventeil 14 und Kurvenfolgerteil 17 denkbar, in dem z.B. die Lagerbuchse 16 auf der Leitspindel 14 drehbar, jedoch achsial nicht verschieblich gelagert ist und mit einem Kurventeil, z.B. einer spiralförmigen Führungsnut versehen ist, die mit einem Kurvenfolgerteil, z.B. einem Zapfen in dem Tragelement 3, zusammenwirkt. Die Drehung der Lagerbuchse 16 bzw. einer drehbaren Leitspindel 14 nach der erwähnten zweiten Ausgestaltung erfolgt über je ein an deren Endbereichen angeformtes oder angebrachtes Zahnrad 21, ein zweites, in dem Tragelement 3 drehbeweglich gelagertes Zahnrad 22, das in das Zahnrad 21 eingreift, eine an der Konsole 2 drehgelagerte längsprofilierte Welle 23, die durch eine gleiche Profilierung der Innenbohrung 20 in dem Zahnrad 22 hindurchgeführt ist, wobei sich die längsprofilierte Welle 23 über den Gesamtverstellbereich des Tragelementes 3 erstreckt. Die längsprofilierte Welle 23 steht über Wellen bzw. Gelenkwellen 24 und Winkelgetriebe 26 mit einem allen längsprofilierten Wellen 23 gemeinsamen Stellmotor 27, Fig. 1, in Wirkverbindung. Weitere Winkelgetriebe 28 sind den einzelnen Anlenkbereichen der Greiferschienen-Schließ-öffnen-Bewegungen zugeordnet.In the articulation areas for the transmission of the closing-open movements on gripper rails 1, press-fixed brackets 2 are attached. Each gripper rail 1 is supported in each of its articulation areas, area of each bracket 2, via a respective support element 3, in this by means of guide means 4 in the direction of transfer of the workpieces, a direction perpendicular to the plane of the drawing, adjustable by a press-side transfer drive (not shown) and movable by means of the supporting elements 3 and roller guides, rollers 6 on the supporting elements 3 and running rails 7 on the console 2, in the closing-open directions indicated by an arrow 8 . The movement drive of the gripper rails 1 in the closing-opening directions 8 takes place from a press-driven, for example up and down movable drive rod 9 via rotatable in the bracket 2 angular lever 11, one tab 12 and one in each rail 7 in the Closing-open directions 8 slidably mounted, roller-guided slide 13. Between a respective angle lever 11 and a two-armed deflection lever 18, a coupling rod 19 is arranged for the synchronous opposite movement of the gripper rails 1 in the closing-open directions 8. In each carriage 13, based on the embodiments shown in the figures, a lead screw 14 is rotatably mounted, which extends into the area of the associated support element 3 and in a central bore of the support element 3 via a bearing bush 16 or directly in the support element 3 is stored. The lead screw 14 can be provided with a thread-like guide groove in which, as shown, in the bearing bush 16 or in the support element 3, rotatably mounted balls or rollers 17 are guided to take the support element 3 with the movement of the drive means from the drive rod 9, angle lever 11 , Tab 12 and slide 13 in the closing-open directions 8. The relative position of each support element 3 to the lead screw 14 for changing the starting position of the gripper rails 1 can, as shown, by rotating the bearing bush 16 in the support element 3 or in the event of failure the bushing 16 in a second embodiment by rotating the lead screw 14 with a corresponding rotary bearing of this in the carriage 13. Lead screw 14 and balls or rollers 17 are mentioned as examples. Other configurations of curve part 14 and curve follower part 17 are conceivable, in which, for example, the bearing bush 16 is rotatable on the lead screw 14 but cannot be displaced axially and is provided with a curve part, for example a spiral guide groove, which is provided with a curve follower part, for example a pin in the support element 3 cooperates. The rotation of the bearing bush 16 or of a rotatable lead screw 14 according to the second embodiment mentioned takes place via a gearwheel 21 formed or attached to the end regions thereof, a second, in the support element 3 rotatably mounted gear 22 which engages in the gear 21, a longitudinally profiled shaft 23 which is rotatably mounted on the bracket 2 and which is guided through the same profiling of the inner bore 20 in the gear 22, the longitudinally profiled shaft 23 extending over the total adjustment range of the support element 3 extends. The longitudinally profiled shaft 23 is operatively connected via shafts or cardan shafts 24 and angular gear 26 to a servomotor 27, FIG. 1, common to all longitudinally profiled shafts 23. Additional angular gears 28 are assigned to the individual articulation areas of the gripper rail closing-opening movements.

Fig. 2 sieht, im Unterschied zu Fig. 1, einen getrennten Antrieb jeder Greiferschiene 1, 1' vor mit je einem Stellmotor 27, 27' und Winkelgetrieben 28, 28' und Wellen bzw. Gelenkwellen 24, 24' in doppelter Anzahl, wodurch jede Greiferschiene 1, 1' bei entsprechender Ansteuerung des jeweiligen Stellmotors 27, 27' einzeln (separat) für eine Änderung der Grundweite unter Berücksichtigung z.B. des Masseschwerpunktes der Werkstücke anlenkbar ist.Fig. 2 sees, in contrast to Fig. 1, a separate drive each gripper rail 1, 1 'in front of each with an actuator 27, 27' and angular gear 28, 28 'and shafts or cardan shafts 24, 24' in double number, whereby each gripper rail 1, 1 'with appropriate control of the respective servo motor 27, 27' individually (separately) for a change in the basic width taking into account, for example the center of gravity of the workpieces is articulated.

Desweiteren ist vorgesehen, unter Einsparung von Winkelgetrieben 28, 28', Wellen und Gelenkwellen 24, 24', an den Konsolen 2 Stellmotore 27, 27' in der Anzahl der Tragelemente 3 anzuordnen zur Verbesserung der Feinabstimmung und zur Verringerung der sich bewegenden Massen.Furthermore, it is provided, while saving on angular gears 28, 28 ', shafts and cardan shafts 24, 24', to arrange on the brackets 2 servomotors 27, 27 'in the number of support elements 3 to improve fine-tuning and to reduce the moving masses.

Claims (6)

1. Transferpresse mit Werkstücke in den Bearbeitungsstufen umsetzenden Greiferschienen (1), mit Führungsmitteln (3, 4, 6, 7) und Antriebsmitteln (9) für ein Bewegen der Greiferschienen (1) zumindest in und entgegen der Umsetzrichtung und in den Schließ-Öffnen-Richtungen (8) im Takt der Stößelbewegung und mit einer Einstellvorrichtung (14, 16, 17, 21, 22, 23, 24, 26, 27, 28) zur Änderung der Ausgangsweite der Greiferschienen (1), dadurch gehennzeichnet, daß jede Greiferschiene (1) in jedem Anlenkbereich (Konsole 2) für ein Bewegen in den Schließ-Öffnen-Richtungen (8) über ein Tragelement (3), eine drehbar in dem Tragelement (3) gelagerte Lagerbuchse (16), zumindest je einem bei Drehung der Lagerbuchse (16) wirksamen Kurventeil (14) und Kurvenfolgerteil (17) mit einem Schubteil (12, 13) in Wirkverbindung steht, daß jeder Schubteil (12, 13,) in den Schließ-Öffnen-Richtungen (8) bewegbar und an den pressenseitigen Antriebsmitteln (9) angelenkt ist, und daß die Lagerbuchse (16) über Drehübertragungsmittel (21, 22, 23, 24, 26, 28) von einem Stellmotor (27) drehbeaufschlagbar ist.1. Transfer press with workpieces in the gripper rails (1) converting, with guide means (3, 4, 6, 7) and drive means (9) for moving the gripper rails (1) at least in and against the transfer direction and in the closing openings -Directions (8) in time with the ram movement and with an adjusting device (14, 16, 17, 21, 22, 23, 24, 26, 27, 28) for changing the initial width of the gripper rails (1), characterized in that each gripper rail (1) in each articulation area (console 2) for moving in the closing-opening directions (8) via a support element (3), a bearing bush (16) rotatably mounted in the support element (3), at least one each when the Bearing bush (16) effective cam part (14) and cam follower part (17) with a thrust part (12, 13) is operatively connected so that each thrust part (12, 13,) can be moved in the closing-opening directions (8) and on the press side Drive means (9) is articulated, and that the bearing bush (16) via rotary transmission means (21, 22, 23, 24, 26, 28) can be acted upon by a servomotor (27). 2. Transferpresse nach Anspruch 1, dadurch gekennzeichnet, daß der Kurventeil (14) als Leitspindel mit gewindegangähnlicher Führungsnut ausgebildet ist und zwischen Lagerbuchse (16) und Leitspindel (14) Kugeln (17) formmäßig eingepaßt sind, daß die Leitspindel (14) über einen Schlitten (13) in den Schließ-Öffnen-Richtungen (8) bewegbar mit dem pressenseitigen Antrieb (9) verbunden ist, daß ein Endteil der Lagerbuchse (16) als Zahnrad (21) ausgebildet ist, das mit einem an dem Tragelement (3) drehbar gelagerten Zahnrad (22) in Wirkeingriff steht, und daß das Zahnrad (22) mit einer Innenbohrung (20) auf einer stellmotorgetriebenen, längsprofilierten Welle (23) achsial verschieblich, jedoch drehfest aufgesetzt ist.2. Transfer press according to claim 1, characterized in that the cam part (14) is designed as a lead screw with a thread-like guide groove and between the bearing bush (16) and lead screw (14) balls (17) are fitted in shape that the lead screw (14) over a Carriage (13) is movably connected to the press-side drive (9) in the closing-open directions (8) in such a way that an end part of the bearing bush (16) is designed as a gearwheel (21) which is connected to the support element (3). rotatably mounted gear (22) is in operative engagement, and that the gear (22) with an inner bore (20) on an actuator-driven, longitudinally profiled shaft (23) is axially displaceable but non-rotatably mounted. 3. Transferpresse nach Anspruch 1, dadurch gekennzeichnet, daß der Kurventeil (14) als Leitspindel mit gewindegangähnlicher Führungsnut ausgebildet ist und zwischen Tragelement (3) und Leitspindel (14) Kugeln (1) formmäßig eingepaßt sind und daß ein Endteil der Leitspindel (14) als Zahnrad (21) ausgebildet ist, das mit einem an dem Tragelement (3) drehbar gelagerten Zahnrad (22) in Wirkeingriff steht, und daß das Zahnrad (22) mit einer Innenbohrung (20) auf einer motorgetriebenen, längsprofilierten Welle (23) achsial verschieblich, jedoch drehfest aufgesetzt ist.3. Transfer press according to claim 1, characterized in that the cam part (14) is designed as a lead screw with a thread-like guide groove and between the support element (3) and lead screw (14) balls (1) are fitted in shape and that an end part of the lead screw (14) is designed as a gearwheel (21), which is in operative engagement with a gearwheel (22) rotatably mounted on the support element (3), and that the gearwheel (22) with an inner bore (20) is axially displaceable on a motor-driven, longitudinally profiled shaft (23), but is non-rotatably mounted. 4. Transferpresse nach einem der vorhergehenden Ansprüche, gekennzeichnet durch ein Antriebssystem aus Stellmotor (27), Wellen, Gelenkwellen, Getrieben u.dgl. Drehübertragungsmittel (24, 26, 28), das alle längsprofilierten Wellen (23) der Greiferschienen (1) mechanisch miteinander verbindet.4. Transfer press according to one of the preceding claims, characterized by a drive system comprising a servomotor (27), shafts, cardan shafts, gears and the like. Rotation transmission means (24, 26, 28) which mechanically connects all the longitudinally profiled shafts (23) of the gripper rails (1). 5. Transferpresse nach einem der Ansprüche 1 bis 3, gekennzeichnet durch ein erstes Antriebssystem aus Stellmotor (27), Wellen, Gelenkwellen, Getrieben u.dgl. Drehübertragungsmitteln (24, 26, 28,) das alle einer ersten Greiferschiene (1) zuordenbaren längsprofilierten Wellen (23) mechanisch miteinander verbindet, und durch ein zweites Antriebssystem von im wesentlichen gleichem Aufbau (24', 26', 27', 28'), das alle der zweiten Greiferschiene (1') zuordenbaren längsprofilierten Wellen (23') mechanisch miteinander verbindet.5. Transfer press according to one of claims 1 to 3, characterized by a first drive system comprising a servomotor (27), shafts, cardan shafts, gears and the like. Rotation transmission means (24, 26, 28,) which mechanically connects all the longitudinally profiled shafts (23) which can be assigned to a first gripper rail (1), and by a second drive system of essentially the same structure (24 ', 26', 27 ', 28') which mechanically connects all the longitudinally profiled shafts (23 ') which can be assigned to the second gripper rail (1'). 6. Transferpresse nach einem der Ansprüche 1 bis 3, gekennzeichnet durch in der Anzahl an längsprofilierten Wellen (23, 23') vorhandene (synchron) ansteuerbare Stellmotore (27, 27').6. Transfer press according to one of claims 1 to 3, characterized in that the number of longitudinally profiled shafts (23, 23 ') present (synchronously) controllable servomotors (27, 27').
EP19850100729 1985-01-25 1985-01-25 Transfer press Expired - Lifetime EP0188648B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8585100729T DE3583332D1 (en) 1985-01-25 1985-01-25 TRANSFER PRESS.
EP19850100729 EP0188648B1 (en) 1985-01-25 1985-01-25 Transfer press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19850100729 EP0188648B1 (en) 1985-01-25 1985-01-25 Transfer press

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EP0188648A1 true EP0188648A1 (en) 1986-07-30
EP0188648B1 EP0188648B1 (en) 1991-06-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2640531A1 (en) * 1988-12-15 1990-06-22 Mueller Weingarten Maschf DEVICE FOR DRIVING TIE BARS FOR STAGE PRESSES
FR2658101A1 (en) * 1990-02-21 1991-08-16 Erfurt Umformtechnik Gmbh ACTUATING DEVICE FOR SPACING ADJUSTMENT OF PRESSURE TRANSFER PRESSURE RAILS.
EP0620072A1 (en) * 1993-03-15 1994-10-19 Mabi Ag Method and apparatus for machining thin metal sheets
CN105903839A (en) * 2016-04-28 2016-08-31 安徽兴远家电成套设备有限公司 Novel conveying manipulator for metal plate for refrigerator enclosing plate

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2359912A1 (en) * 1973-11-29 1975-06-12 Hitachi Shipbuilding Eng Co PUSH ROD DRIVE DEVICE FOR A TRANSFER PRESS
DE2525616A1 (en) * 1975-06-02 1976-12-16 Komatsu Mfg Co Ltd DEVICE FOR ADJUSTING THE LATERAL DISTANCE BETWEEN A FEEDER RAIL PAIR OF A FEEDING DEVICE
JPS566743A (en) * 1979-06-29 1981-01-23 Aida Eng Ltd Stepless adjusting device of inside width of feed bar in transfer
DE3103046A1 (en) * 1981-01-30 1982-08-12 Maschinenfabrik Weingarten Ag, 7987 Weingarten Device for adjusting the spacing of the feed bars in presses, in particular in multiple-die presses

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2359912A1 (en) * 1973-11-29 1975-06-12 Hitachi Shipbuilding Eng Co PUSH ROD DRIVE DEVICE FOR A TRANSFER PRESS
DE2525616A1 (en) * 1975-06-02 1976-12-16 Komatsu Mfg Co Ltd DEVICE FOR ADJUSTING THE LATERAL DISTANCE BETWEEN A FEEDER RAIL PAIR OF A FEEDING DEVICE
JPS566743A (en) * 1979-06-29 1981-01-23 Aida Eng Ltd Stepless adjusting device of inside width of feed bar in transfer
DE3103046A1 (en) * 1981-01-30 1982-08-12 Maschinenfabrik Weingarten Ag, 7987 Weingarten Device for adjusting the spacing of the feed bars in presses, in particular in multiple-die presses

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2640531A1 (en) * 1988-12-15 1990-06-22 Mueller Weingarten Maschf DEVICE FOR DRIVING TIE BARS FOR STAGE PRESSES
FR2658101A1 (en) * 1990-02-21 1991-08-16 Erfurt Umformtechnik Gmbh ACTUATING DEVICE FOR SPACING ADJUSTMENT OF PRESSURE TRANSFER PRESSURE RAILS.
EP0620072A1 (en) * 1993-03-15 1994-10-19 Mabi Ag Method and apparatus for machining thin metal sheets
CN105903839A (en) * 2016-04-28 2016-08-31 安徽兴远家电成套设备有限公司 Novel conveying manipulator for metal plate for refrigerator enclosing plate

Also Published As

Publication number Publication date
DE3583332D1 (en) 1991-08-01
EP0188648B1 (en) 1991-06-26

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