EP0685276A1 - Transfer device in a forming machine, in particular in a transferpress - Google Patents

Transfer device in a forming machine, in particular in a transferpress Download PDF

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Publication number
EP0685276A1
EP0685276A1 EP95107533A EP95107533A EP0685276A1 EP 0685276 A1 EP0685276 A1 EP 0685276A1 EP 95107533 A EP95107533 A EP 95107533A EP 95107533 A EP95107533 A EP 95107533A EP 0685276 A1 EP0685276 A1 EP 0685276A1
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EP
European Patent Office
Prior art keywords
transfer device
carriages
transfer
lifting
crossbar
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
EP95107533A
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German (de)
French (fr)
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EP0685276B1 (en
Inventor
Gerhard Allgöwer
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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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
    • B21D43/052—Devices having a cross bar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
    • 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 device in a forming machine according to the kind defined in the preamble of claim 1.
  • Transfer presses, large section presses, press systems are forming machines in which sheet metal parts are formed through process steps such as drawing and punching.
  • the presses have at least one ram to which a tool or tool set (upper tool) is fastened, which interacts with a tool or tool set (lower tool) in the press table or on a sliding table.
  • the plungers can be moved up and down via drive means of the press.
  • Intermediate shelves are arranged in areas between the stands for downstream presses, the so-called empty stages.
  • the tools or tool sets are changed using sliding tables that can be moved out of the press for this purpose.
  • transfer devices are known from practice, with carriages on transfer rails which run parallel to the conveying direction of the sheet metal parts are provided, two opposing carriages each being connected to one another by means of at least one crossbar.
  • Devices for receiving or transporting the sheet metal parts processed in the press or to be processed in the downstream press are attached to the crossbeams.
  • the aforementioned devices can be designed, for example, as grippers or suction devices.
  • the transfer device In order to lift the sheet metal part out of a press or insert it into the tool of a downstream press, the transfer device must, among other things, make a movement perpendicular to the floor, i.e. a lifting or lowering movement.
  • the lifting and lowering movement takes place in that the entire transfer rail, or individual areas of the transfer rail, is raised or lowered with the carriages arranged thereon.
  • the stroke movement is controlled by at least one cam disk, which is moved synchronously together with other cam disks, so that all movable parts of the transfer device can be moved synchronously.
  • a disadvantage of the prior art described, however, is that the manufacturing and assembly costs are relatively high, since a large number of individual parts have to be manufactured and assembled.
  • Another disadvantage is the large number of moving masses, all of which occur during a lifting movement of the transfer device have to be accelerated and braked. Specifically, this means that to move the sheet metal part to be transported, the entire transfer rail with all the components arranged thereon may have to be accelerated and braked.
  • the present invention is therefore based on the object of providing a transfer device which can be produced and assembled easily and inexpensively and which has fewer moving masses during a lifting movement.
  • a view of a lifting and lowering device 1 is shown, which is arranged on a carriage 2, which is slidably mounted on a transfer rail 3.
  • a linear guide 4, in which a sliding block 5 is guided, is mounted on the carriage 2 perpendicular to the longitudinal axis of the transfer rail 3.
  • the sliding block 5 is moved by means of a motor 6, which drives a torque transmission device 8 via a gear 7, which is designed, for example, as an angular gear or as a worm gear, which in the present exemplary embodiment is designed as a toothed belt drive.
  • the ends of the toothed belt 9 of the torque transmission device 8 are both attached to the sliding block 5.
  • the toothed belt 9 is deflected here via toothed belt wheels 10, 11, the toothed belt wheel 10 being arranged on the output shaft of the transmission 7.
  • the sliding block 5 is moved via the gear 7 and the toothed belt 9, in the lifting direction of the transfer device, a transverse cross member 12 attached to the sliding block 5 also being moved at the same time.
  • Grippers or suction devices 13 are arranged on the crossbar 12 and can hold and hold a sheet metal part.
  • FIG. 2 shows a variant of the lifting and lowering device 1 according to FIG. 1.
  • the lifting and lowering device 1 is also arranged on a carriage 2, which can be moved on the transfer rail 3.
  • the sliding block 5 is also mounted in a linear guide 4, but the torque transmission device 8 is designed as a ball screw 14.
  • the ball screw 14 is moved directly by a motor 6, so that the interposition of a gear between the motor 6 and the ball screw 14 is unnecessary.
  • a crossbar 12 with suction devices 13 is attached to the sliding block 5.
  • FIG. 3 shows a plan view of a transfer device which has carriages 2, 15 which are provided with lifting and lowering devices 1.
  • the carriages 2, 15 are guided in a linearly movable manner on the transfer rails 3.
  • the cross-beam 12 is arranged, on which in turn suction cups 13 are attached to receive and transport a sheet metal part 16.
  • An intermediate shelf 20 is arranged between the crossbeam 12 and a subsequently arranged crossbeam 17, which in turn is connected to its own carriages 18, 19.
  • the sheet metal part 16 When the sheet metal part 16 is being transported, it is removed by the suction devices 13 on the crossbar 12 from the first press and placed on the clipboard 20. Subsequently, the sheet metal part 16 of the suction cups on the further crossbar 17, i.e. the subsequent cross-beam, picked up and inserted into a subsequent press.
  • the clipboard 20 is freely programmable and adjustable in several axes.
  • the sheet metal part 16 is moved by the lifting and lowering devices 1, which are arranged on the carriages 2, 15, in a direction perpendicular to the xz plane shown in FIG. 3.
  • the drives 6 of the individual lifting and lowering devices are electrically coupled so that the lifting movement takes place synchronously.
  • the directions z and x are entered in a coordinate system in FIG. 3, the directions defined in the coordinate system to be used subsequently.
  • the cross members 12, 17 can - as is known - be rotated about their longitudinal axis.
  • a laterally arranged drive motor (not shown) can be provided with a worm gear or an angular gear. In this way, rotary movements of the crossbeams 12, 17 can be carried out in a simple manner.
  • Fig. 4 shows a plan view of a carriage 2, which is additionally provided with an adjusting member 21, the adjusting member compensating movement of the crossbar 12 in the x direction, i.e. can perform parallel to the direction of transport of the sheet metal parts 16.
  • the lifting and lowering device 1 is arranged on the adjusting member 21, the adjusting member 21 having its own drive 22.
  • the adjusting member 21 is guided in a linear guide 23, so that a linear movement of the adjusting member 21 with all the components attached to it is possible.
  • the linear guide is designed as a guide rail 23.
  • the adjusting member 21 can also be attached to the lifting and lowering device 1, i.e. an intermediate member, not shown, is arranged on the sliding block 5, on which guide rails 23 are attached. In turn, the adjusting member 21 is guided in the guide rails, to which the crossbar 12 connects.
  • FIG. 6 shows a further exemplary embodiment of the transfer device.
  • the lifting and lowering devices 1 opposing carriages 2, 15 are not controlled simultaneously or in the same direction, so that the sliding blocks 5 of the respective lifting and lowering device 1 are not at the same height.
  • the distance between the two lifting and lowering devices 1 is increased by an amount ⁇ z, ie a length compensation of the amount ⁇ z must be carried out by the crossbar 12.
  • a length compensation device is provided in the crossbar 12, which in the present embodiment is designed as a telescopic tube 24.
  • the crossbar 12 is hollow on the inside, a further tube or rod being inserted into the hollow interior of the crossbar 12, and the tube or the rod in the crossbar 12 is slidably mounted.
  • the ends of the crossbar 12 are provided with joints 25, 26, which adjust the different positions of the lifting and lowering device 1 in the y direction and the resulting change in position Allow crossbar 12.
  • the carriages 2, 15 can also be provided with the adjusting element 21 described in connection with FIGS. 4 and 5, as is the case in the exemplary embodiment according to FIG. 6. If the joints 25, 26 are designed as ball joints, it is no longer necessary to synchronize the drive motors 22 in the x direction (see FIGS. 4 and 5).
  • the described transfer device enables the intermediate storage 20 to be made simpler between successive presses.
  • the clipboard 20 must still carry out compensating movements, but these are limited to compensating movements ⁇ z with respect to a pivoting movement about the x direction.
  • the tilt compensation movement on the clipboard 20 can be omitted at the same time.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Specific Conveyance Elements (AREA)
  • Transmission Devices (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Reciprocating Conveyors (AREA)

Abstract

The arrangement comprises a cam drive which engages with pushrods to which carriages (2,15) are linked. These carriages run on transfer rails while two carriages at opposite sides are interconnected by a cross traverse (12). The traverse is connected to the carriages via raising and lowering arrangements (1). Each lowering and raising arrangement has its own drive (6) which moves a link block running in a slot, via a torque transmission mechanism in the form of a toothed belt drive or a recirculating ball spindle. <IMAGE>

Description

Die Erfindung betrifft eine Umsetzvorrichtung in einer Umformmaschine nach der im Oberbegriff von Anspruch 1 näher definierten Art.The invention relates to a transfer device in a forming machine according to the kind defined in the preamble of claim 1.

Transferpressen, Großteilstufenpressen, Pressen-Anlagen sind Umformmaschinen, in denen Blechteile durch Verfahrensschritte wie ziehen und Stanzen geformt werden. Die Pressen weisen hierfür zumindest einen Stößel auf, an dem ein Werkzeug oder Werkzeugsatz (Oberwerkzeug) befestigt ist, das mit einem Werkzeug oder Werkzeugsatz (Unterwerkzeug) im Pressentisch oder auf einem Schiebetisch zusammenwirkt. Die Stößel sind über Antriebsmittel der Presse auf- und abbewegbar. In Bereichen zwischen den Ständern zu nachgeordneten Pressen, den sogenannten Leerstufen, sind Zwischenablagen angeordnet. Das Wechseln der Werkzeuge bzw. Werkzeugsätze erfolgt vermittels Schiebetischen, die aus der Presse hierfür herausfahrbar sind.Transfer presses, large section presses, press systems are forming machines in which sheet metal parts are formed through process steps such as drawing and punching. For this purpose, the presses have at least one ram to which a tool or tool set (upper tool) is fastened, which interacts with a tool or tool set (lower tool) in the press table or on a sliding table. The plungers can be moved up and down via drive means of the press. Intermediate shelves are arranged in areas between the stands for downstream presses, the so-called empty stages. The tools or tool sets are changed using sliding tables that can be moved out of the press for this purpose.

Zum Überbrücken der beschriebenen Leerstufen zwischen den Pressen sind aus der Praxis Umsetzvorrichtungen bekannt, wobei auf Transferschienen, welche parallel zur Förderrichtung der Blechteile verlaufen, Laufwägen vorgesehen sind, wobei zwei sich gegenüberliegende Laufwägen jeweils mittels wenigstens einer Quertraverse miteinander verbunden sind.In order to bridge the empty stages described between the presses, transfer devices are known from practice, with carriages on transfer rails which run parallel to the conveying direction of the sheet metal parts are provided, two opposing carriages each being connected to one another by means of at least one crossbar.

An den Quertraversen sind Einrichtungen zum Aufnehmen bzw. Transportieren der in der Presse bearbeiteten bzw. in der nachgeordneten Presse zu bearbeitenden Blechteile angebracht. Die genannnten Einrichtungen können beispielsweise als Greifer oder Sauger ausgeführt sein.Devices for receiving or transporting the sheet metal parts processed in the press or to be processed in the downstream press are attached to the crossbeams. The aforementioned devices can be designed, for example, as grippers or suction devices.

Um das Blechteil aus einer Presse herauszuheben bzw. in das Werkzeug einer nachgeordneten Presse einzulegen, muß von der Umsetzvorrichtung unter anderem eine Bewegung senkrecht zum Boden, d.h. eine Heb- oder Senkbewegung, durchgeführt werden.In order to lift the sheet metal part out of a press or insert it into the tool of a downstream press, the transfer device must, among other things, make a movement perpendicular to the floor, i.e. a lifting or lowering movement.

Bei bekannten Umsetzvorrichtungen erfolgt die Heb- und Senkbewegung dadurch, daß die gesamte Transferschiene, bzw. einzelne Bereiche der Transferschiene, mit den daran angeordneten Laufwägen angehoben oder abgesenkt wird. Gesteuert wird die Hubbewegung von wenigstens einer Kurvenscheibe, welche zusammen mit anderen Kurvenscheiben synchron bewegt wird, um somit sämtliche beweglichen Teile der Umsetzvorrichtung synchron bewegen zu können.In known transfer devices, the lifting and lowering movement takes place in that the entire transfer rail, or individual areas of the transfer rail, is raised or lowered with the carriages arranged thereon. The stroke movement is controlled by at least one cam disk, which is moved synchronously together with other cam disks, so that all movable parts of the transfer device can be moved synchronously.

Nachteilig an dem beschriebenen Stand der Technik ist jedoch, daß der Herstellungs- und Montageaufwand relativ hoch ist, da eine Vielzahl von Einzelteilen hergestellt und montiert werden muß.A disadvantage of the prior art described, however, is that the manufacturing and assembly costs are relatively high, since a large number of individual parts have to be manufactured and assembled.

Ein weiterer Nachteil sind die vielen bewegten Massen, die alle bei einer Hubbewegung der Umsetzvorrichtung beschleunigt und abgebremst werden müssen. Konkret bedeutet dies, daß zum Bewegen des zu transportierenden Blechteiles unter Umständen die gesamte Transferschiene mit allen darauf angeordneten Bauteilen beschleunigt und abgebremst werden muß.Another disadvantage is the large number of moving masses, all of which occur during a lifting movement of the transfer device have to be accelerated and braked. Specifically, this means that to move the sheet metal part to be transported, the entire transfer rail with all the components arranged thereon may have to be accelerated and braked.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Umsetzvorrichtung vorzusehen, welche einfach und kostengünstig hergestellt und montiert werden kann, und die weniger bewegte Massen bei einer Hubbewegung aufweist.The present invention is therefore based on the object of providing a transfer device which can be produced and assembled easily and inexpensively and which has fewer moving masses during a lifting movement.

Erfindungsgemäß wird diese Aufgabe durch die im kennzeichnenden Teil von Anspruch 1 genannten Merkmale gelöst.According to the invention this object is achieved by the features mentioned in the characterizing part of claim 1.

Durch die Anordnung einer Heb- und Senkeinrichtung auf jedem einzelnen der Laufwägen ist es nicht mehr notwendig, die gesamte Transferschiene bzw. Bereiche davon mit sämtlichen an der Transferschiene angeordneten Bauteilen anzuheben, so daß wesentlich weniger Masse beschleunigt werden muß, was sich auf die gesamte Dimensionierung der Umsetzvorrichtung vorteilhaft auswirkt.By arranging a lifting and lowering device on each of the carriages, it is no longer necessary to lift the entire transfer rail or areas thereof with all the components arranged on the transfer rail, so that much less mass has to be accelerated, which affects the entire dimensioning the conversion device has an advantageous effect.

Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und den nachfolgend anhand der Zeichnung prinzipmäßig beschriebenen Ausführungsbeispielen.Advantageous refinements and developments of the invention result from the subclaims and the exemplary embodiments described in principle below with reference to the drawing.

Es zeigt:

Fig. 1
eine Ansicht eines ersten Ausführungsbeispieles für eine Heb- und Senkeinrichtung,
Fig. 2
ein zweites Ausführungsbeispiel einer Heb- und Senkeinrichtung,
Fig. 3
eine Draufsicht auf eine erfindungsgemäße Umsetzvorrichtung,
Fig. 4
eine Draufsicht auf einen Laufwagen, mit dem eine lineare Ausgleichsbewegung möglich ist,
Fig. 5
eine Seitenansicht der Anordnung nach der Fig. 4, und
Fig. 6
eine Seitenansicht eines weiteren Ausführungsbeispieles der erfindungsgemäßen Umsetzvorrichtung.
It shows:
Fig. 1
2 shows a view of a first exemplary embodiment of a lifting and lowering device,
Fig. 2
a second embodiment of a lifting and lowering device,
Fig. 3
a plan view of a transfer device according to the invention,
Fig. 4
a plan view of a carriage with which a linear compensation movement is possible,
Fig. 5
a side view of the arrangement of FIG. 4, and
Fig. 6
a side view of another embodiment of the transfer device according to the invention.

Bezugnehmend auf Fig. 1 ist eine Ansicht einer Heb- und Senkeinrichtung 1 dargestellt, welche auf einem Laufwagen 2 angeordnet ist, welcher auf einer Transferschiene 3 verschiebbar gelagert ist.1, a view of a lifting and lowering device 1 is shown, which is arranged on a carriage 2, which is slidably mounted on a transfer rail 3.

Senkrecht zur Längsachse der Transferschiene 3 ist auf dem Laufwagen 2 eine Linearführung 4 angebracht, in welcher ein Kulissenstein 5 geführt ist.A linear guide 4, in which a sliding block 5 is guided, is mounted on the carriage 2 perpendicular to the longitudinal axis of the transfer rail 3.

Der Kulissenstein 5 wird mittels eines Motors 6 bewegt, welcher über ein Getriebe 7, das beispielsweise als Winkelgetriebe oder als Schneckengetriebe ausgeführt ist, eine Drehmomentenübertragungseinrichtung 8 antreibt, welche in dem vorliegenden Ausführungsbeispiel als zahnriementrieb ausgeführt ist.The sliding block 5 is moved by means of a motor 6, which drives a torque transmission device 8 via a gear 7, which is designed, for example, as an angular gear or as a worm gear, which in the present exemplary embodiment is designed as a toothed belt drive.

Die Enden des Zahnriemens 9 der Drehmomentenübertragungseinrichtung 8 sind beide an dem Kulissenstein 5 befestigt. Die Umlenkung des Zahnriemens 9 erfolgt hierbei über Zahnriemenräder 10, 11, wobei das Zahnriemenrad 10 auf der Abtriebswelle des Getriebes 7 angeordnet ist.The ends of the toothed belt 9 of the torque transmission device 8 are both attached to the sliding block 5. The toothed belt 9 is deflected here via toothed belt wheels 10, 11, the toothed belt wheel 10 being arranged on the output shaft of the transmission 7.

Wird der Motor 6 angesteuert, so wird über das Getriebe 7 sowie den Zahnriemen 9 der Kulissenstein 5 bewegt, und zwar in Hubrichtung der Umsetzvorrichtung, wobei auch gleichzeitig eine an dem Kulissenstein 5 angebrachte Quertraverse 12 mitbewegt wird.If the motor 6 is actuated, the sliding block 5 is moved via the gear 7 and the toothed belt 9, in the lifting direction of the transfer device, a transverse cross member 12 attached to the sliding block 5 also being moved at the same time.

An der Quertraverse 12 sind Greifer oder Sauger 13 (siehe Fig. 3) angeordnet, welche ein Blechteil aufnehmen und festhalten können.Grippers or suction devices 13 (see FIG. 3) are arranged on the crossbar 12 and can hold and hold a sheet metal part.

Fig. 2 zeigt eine Variante der Heb- und Senkeinrichtung 1 nach der Fig. 1.FIG. 2 shows a variant of the lifting and lowering device 1 according to FIG. 1.

Die Heb- und Senkeinrichtung 1 ist hierbei ebenfalls auf einem Laufwagen 2 angeordnet, welcher auf der Transferschiene 3 verfahrbar ist. Der Kulissenstein 5 ist ebenfalls in einer Linearführung 4 gelagert, allerdings ist die Drehmomentenübertragungseinrichtung 8 als Kugelrollspindel 14 ausgeführt.The lifting and lowering device 1 is also arranged on a carriage 2, which can be moved on the transfer rail 3. The sliding block 5 is also mounted in a linear guide 4, but the torque transmission device 8 is designed as a ball screw 14.

Die Kugelrollspindel 14 wird direkt von einem Motor 6 bewegt, so daß das Zwischenschalten eines Getriebes zwischen den Motor 6 und die Kugelrollspindel 14 überflüssig ist.The ball screw 14 is moved directly by a motor 6, so that the interposition of a gear between the motor 6 and the ball screw 14 is unnecessary.

An dem Kulissenstein 5 ist, wie bereits in Zusammenhang mit der Fig. 1 beschrieben, eine Quertraverse 12 mit Saugern 13 angebracht.As already described in connection with FIG. 1, a crossbar 12 with suction devices 13 is attached to the sliding block 5.

Fig. 3 zeigt eine Draufsicht auf eine Umsetzvorrichtung, welche Laufwagen 2, 15 aufweist, die mit Heb- und Senkeinrichtungen 1 versehen sind. Die Laufwagen 2, 15 sind auf den Transferschienen 3 linear beweglich geführt.3 shows a plan view of a transfer device which has carriages 2, 15 which are provided with lifting and lowering devices 1. The carriages 2, 15 are guided in a linearly movable manner on the transfer rails 3.

Zwischen den sich gegenüberliegenden Laufwagen 2 und 15 ist die Quertraverse 12 angeordnet, an welcher wiederum Sauger 13 zur Aufnahme und zum Transport eines Blechteiles 16 angebracht sind.Between the opposite carriages 2 and 15, the cross-beam 12 is arranged, on which in turn suction cups 13 are attached to receive and transport a sheet metal part 16.

Zwischen der Quertraverse 12 und einer nachfolgend angeordneten Quertraverse 17, welche wiederum mit eigenen Laufwagen 18, 19 verbunden ist, ist eine Zwischenablage 20 angeordnet.An intermediate shelf 20 is arranged between the crossbeam 12 and a subsequently arranged crossbeam 17, which in turn is connected to its own carriages 18, 19.

Beim Transport des Blechteiles 16 wird dieses von den Saugern 13 an der Quertraverse 12 aus der ersten Presse entnommen und auf der Zwischenablage 20 abgelegt. Anschließend wird das Blechteil 16 von den Saugern an der weiteren Quertraverse 17, d.h. der nachfolgenden Quertraverse, aufgenommen und in eine nachfolgende Presse eingelegt.When the sheet metal part 16 is being transported, it is removed by the suction devices 13 on the crossbar 12 from the first press and placed on the clipboard 20. Subsequently, the sheet metal part 16 of the suction cups on the further crossbar 17, i.e. the subsequent cross-beam, picked up and inserted into a subsequent press.

Die Zwischenablage 20 ist frei programmierbar und in mehreren Achsen verstellbar.The clipboard 20 is freely programmable and adjustable in several axes.

Das Blechteil 16 wird von den Heb- und Senkeinrichtungen 1, die auf den Laufwagen 2, 15 angeordnet sind, in einer Richtung senkrecht zu der in der Fig. 3 dargestellten xz-Ebene bewegt.The sheet metal part 16 is moved by the lifting and lowering devices 1, which are arranged on the carriages 2, 15, in a direction perpendicular to the xz plane shown in FIG. 3.

Damit die Heb- und Senkeinrichtungen 1 auf den Laufwägen 2, 15 gleichzeitig und gleichmäßig betätigt werden, sind die Antriebe 6 der einzelnen Heb- und Senkeinrichtungen elektrisch gekoppelt, damit die Hubbewegung synchron abläuft.So that the lifting and lowering devices 1 on the carriages 2, 15 are operated simultaneously and evenly, the drives 6 of the individual lifting and lowering devices are electrically coupled so that the lifting movement takes place synchronously.

Des weiteren sind in Fig. 3 die Richtungen z und x in einem Koordinatensystem eingetragen, wobei die in dem Koordinatensystem festgelegten Richtungen nachfolgend verwendet werden sollen.Furthermore, the directions z and x are entered in a coordinate system in FIG. 3, the directions defined in the coordinate system to be used subsequently.

Die Quertraversen 12, 17 können noch - wie bekannt - um ihre Längsachse gedreht werden. Hierzu kann z.B. ein seitlich angeordneter Antriebsmotor (nicht dargestellt) mit einem Schneckengetriebe oder einem Winkelgetriebe vorgesehen sein. Hierdurch lassen sich Drehbewegungen der Quertraversen 12, 17 auf einfache Art und Weise durchführen.The cross members 12, 17 can - as is known - be rotated about their longitudinal axis. For this, e.g. a laterally arranged drive motor (not shown) can be provided with a worm gear or an angular gear. In this way, rotary movements of the crossbeams 12, 17 can be carried out in a simple manner.

Fig. 4 zeigt eine Draufsicht auf einen Laufwagen 2, welcher zusätzlich mit einem Verstellglied 21 versehen ist, wobei das Verstellglied eine Ausgleichsbewegung der Quertraverse 12 in x-Richtung, d.h. parallel zur Transportrichtung der Blechteile 16, durchführen kann.Fig. 4 shows a plan view of a carriage 2, which is additionally provided with an adjusting member 21, the adjusting member compensating movement of the crossbar 12 in the x direction, i.e. can perform parallel to the direction of transport of the sheet metal parts 16.

Die Heb- und Senkeinrichtung 1 ist hierbei auf dem Verstellglied 21 angeordnet, wobei das Verstellglied 21 einen eigenen Antrieb 22 aufweist.The lifting and lowering device 1 is arranged on the adjusting member 21, the adjusting member 21 having its own drive 22.

Wie aus der Fig. 5 ersichtlich ist, ist das Verstellglied 21 in einer Linearführung 23 geführt, so daß eine lineare Bewegung des Verstellgliedes 21 mit allen daran angebrachten Bauteilen möglich ist. In dem vorliegenden Ausführungsbeispiel ist die Linearführung als Führungsschiene 23 ausgebildet.As can be seen from FIG. 5, the adjusting member 21 is guided in a linear guide 23, so that a linear movement of the adjusting member 21 with all the components attached to it is possible. In the present exemplary embodiment, the linear guide is designed as a guide rail 23.

Um eine gleichzeitige und gleichmäßige Bewegung der Verstellglieder 21 auf sich gegenüberliegenden Laufwägen 2, 15 zu erreichen, sind die Antriebe 22 der Verstellglieder 21 synchronisiert.In order to achieve a simultaneous and uniform movement of the adjusting members 21 on carriages 2, 15 lying opposite one another, the drives 22 of the adjusting members 21 are synchronized.

Selbstverständlich kann jedoch das Verstellglied 21 auch auf der Heb- und Senkeinrichtung 1 angebracht werden, d.h. auf dem Kulissenstein 5 ist ein nicht dargestelltes Zwischenglied angeordnet, auf welchem Führungsschienen 23 angebracht sind. In den Führungsschienen wiederum ist das Verstellglied 21 geführt, an welches sich die Quertraverse 12 anschließt.Of course, however, the adjusting member 21 can also be attached to the lifting and lowering device 1, i.e. an intermediate member, not shown, is arranged on the sliding block 5, on which guide rails 23 are attached. In turn, the adjusting member 21 is guided in the guide rails, to which the crossbar 12 connects.

Fig. 6 zeigt ein weiteres Ausführungsbeispiel der Umsetzvorrichtung.6 shows a further exemplary embodiment of the transfer device.

Hierbei werden die Heb- und Senkeinrichtungen 1 sich gegenüberliegender Laufwagen 2, 15 nicht gleichzeitig bzw. gleichsinnig angesteuert, so daß sich die Kulissensteine 5 der jeweiligen Heb- und Senkeinrichtung 1 nicht auf gleicher Höhe befinden.Here, the lifting and lowering devices 1 opposing carriages 2, 15 are not controlled simultaneously or in the same direction, so that the sliding blocks 5 of the respective lifting and lowering device 1 are not at the same height.

Dies kann insbesondere dann von Vorteil sein, wenn ein Blechteil 16, welches an den Saugern 13 hängt, um eine parallel zur Transportrichtung des Blechteils 16 verlaufende Achse verschwenkt werden sollen.This can be particularly advantageous if a sheet metal part 16 which is attached to the suction cups 13 is to be pivoted about an axis running parallel to the transport direction of the sheet metal part 16.

Hierbei verlängert sich jedoch der Abstand zwischen den beiden Heb- und Senkeinrichtungen 1 um einen Betrag Δz, d.h. von der Quertraverse 12 muß ein Längenausgleich um den Betrag Δz durchgeführt werden. Dies erfolgt dadurch, daß in der Quertraverse 12 eine Längenausgleichseinrichtung vorgesehen ist, die in dem vorliegenden Ausführungsbeispiel als Teleskoprohr 24 ausgebildet ist.Here, however, the distance between the two lifting and lowering devices 1 is increased by an amount Δz, ie a length compensation of the amount Δz must be carried out by the crossbar 12. This is done in that a length compensation device is provided in the crossbar 12, which in the present embodiment is designed as a telescopic tube 24.

Die Quertraverse 12 ist hierbei innen hohl ausgeführt, wobei in den hohlen Innenraum der Quertraverse 12 ein weiteres Rohr bzw. eine Stange gesteckt ist, und das Rohr bzw. die Stange in der Quertraverse 12 verschiebbar gelagert ist.The crossbar 12 is hollow on the inside, a further tube or rod being inserted into the hollow interior of the crossbar 12, and the tube or the rod in the crossbar 12 is slidably mounted.

Um Verspannungen der Quertraverse 12 bei gegensinnigen Bewegungen der Heb- und Senkeinrichtungen 1 zu vermeiden, sind die Enden der Quertraverse 12 mit Gelenken 25, 26 versehen, die die unterschiedlichen Stellungen der Heb- und Senkeinrichtung 1 in y-Richtung und die daraus resultierende Lageänderung der Quertraverse 12 ermöglichen.In order to avoid tensioning of the crossbar 12 when the lifting and lowering devices 1 move in opposite directions, the ends of the crossbar 12 are provided with joints 25, 26, which adjust the different positions of the lifting and lowering device 1 in the y direction and the resulting change in position Allow crossbar 12.

Selbstverständlich können die Laufwägen 2, 15 zusätzlich auch mit dem in Zusammenhang mit den Fig. 4 und 5 beschriebenen Verstellglied 21 versehen sein, wie dies in dem Ausführungsbeispiel nach der Fig. 6 der Fall ist. Sind die Gelenke 25, 26 als Kugelgelenke ausgeführt, so ist in x-Richtung eine Synchronisierung der Antriebsmotoren 22 (siehe Fig. 4 und 5) nicht mehr notwendig.Of course, the carriages 2, 15 can also be provided with the adjusting element 21 described in connection with FIGS. 4 and 5, as is the case in the exemplary embodiment according to FIG. 6. If the joints 25, 26 are designed as ball joints, it is no longer necessary to synchronize the drive motors 22 in the x direction (see FIGS. 4 and 5).

Durch die beschriebene Umsetzvorrichtung kann die Zwischenablage 20 zwischen aufeinanderfolgenden Pressen einfacher ausgeführt sein. Zwar muß die Zwischenablage 20 nach wie vor Ausgleichsbewegungen durchführen, diese beschränken sich jedoch auf Ausgleichsbewegungen Δz bezüglich einer Schwenkbewegung um die x-Richtung. Der bisherige Höhenausgleich in y-Richtung durch die Zwischenablage 20 wird nunmehr durch die dargestellte Heb- und Senkeinrichtung 1 (= Δy) durchgeführt. Bei dem Ausführungsbeispiel nach der Fig. 6 kann gleichzeitig die Kippausgleichsbewegung an der Zwischenablage 20 entfallen.The described transfer device enables the intermediate storage 20 to be made simpler between successive presses. The clipboard 20 must still carry out compensating movements, but these are limited to compensating movements Δz with respect to a pivoting movement about the x direction. The previous height compensation in the y direction by the clipboard 20 is now shown by the Lifting and lowering device 1 (= Δy) performed. In the embodiment according to FIG. 6, the tilt compensation movement on the clipboard 20 can be omitted at the same time.

Durch die Verstellglieder 21, die in Fig. 4 und 5 dargestellt sind, entfällt an der Zwischenablage 20 die Längsachse (= x-Richtung). Mit dem in Fig. 4 dargestellten Schnecken- oder Winkelgetriebe 6 kann an der Zwischenablage 20 die Schwenkbewegung um die z-Richtung entfallen.Due to the adjusting members 21, which are shown in FIGS. 4 and 5, the longitudinal axis (= x-direction) is omitted on the clipboard 20. With the worm or angular gear 6 shown in FIG. 4, the pivoting movement about the z-direction can be omitted on the clipboard 20.

Claims (15)

Umsetzvorrichtung in einer Umformmaschine, insbesondere einer Transferpresse, Großteilstufenpresse, Pressen-Anlage und dergleichen, mit einem über Antriebsmittel auf- und abbewegbaren Stößel für die Umformung von Blechteilen, mit Schiebetischen für den Werkzeugwechsel, mit einem Kurvenantrieb für eine Transferbewegung von Schubstangen, an denen Laufwägen angelenkt sind, die auf Transferschienen laufen, wobei jeweils zwei gegenüberliegende Laufwägen mittels wenigstens einer Quertraverse miteinander verbunden sind,
dadurch gekennzeichnet, daß
die Quertraverse (12) auf jeder Seite über eine Heb- und Senkeinrichtung (1) mit den jeweiligen Laufwägen (2,15) verbunden ist.Transfer device in a forming machine, in particular a transfer press, large section press, press system and the like, with a plunger that can be moved up and down via drive means for the forming of sheet metal parts, with sliding tables for tool change, with a cam drive for a transfer movement of push rods on which carriages are articulated, which run on transfer rails, two opposite carriages each being connected to one another by means of at least one crossbar,
characterized in that
the crossbar (12) is connected on each side to the respective carriages (2, 15) by a lifting and lowering device (1). Umsetzvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß
die Heb- und Senkeinrichtung (1) einen eigenen Antrieb (6) aufweist, welcher einen Kulissenstein (5) mittels einer Drehmomentenübertragungseinrichtung (8) bewegt.Transfer device according to claim 1,
characterized in that
the lifting and lowering device (1) has its own drive (6) which moves a sliding block (5) by means of a torque transmission device (8). Umsetzvorrichtung nach Anspruch 2,
dadurch gekennzeichnet, daß
die Drehmomentenübertragungseinrichtung als Zahnriementrieb (8) ausgebildet ist.Transfer device according to claim 2,
characterized in that
the torque transmission device is designed as a toothed belt drive (8). Umsetzvorrichtung nach Anspruch 2,
dadurch gekennzeichnet, daß
die Drehmomentenübertragungseinrichtung als Kugelrollspindel (14) ausgebildet ist.Transfer device according to claim 2,
characterized in that
the torque transmission device is designed as a ball screw (14). Umsetzvorrichtung nach Anspruch 1 und 2,
dadurch gekennzeichnet, daß
die Antriebe (6) der Heb- und Senkeinrichtungen (1) wenigstens von sich gegenüberliegenden Laufwägen (2,15) elektrisch gekoppelt sind.Transfer device according to claim 1 and 2,
characterized in that
the drives (6) of the lifting and lowering devices (1) are electrically coupled at least by opposite carriages (2, 15). Umsetzvorrichtung nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß
auf jedem der Laufwägen (2,15) ein Verstellglied (21) angeordnet ist, welches eine lineare Ausgleichsbewegung parallel zur Transportrichtung der Blechteile (16) durchführt.Transfer device according to one of claims 1 to 5,
characterized in that
An adjusting member (21) is arranged on each of the carriages (2, 15) and carries out a linear compensating movement parallel to the transport direction of the sheet metal parts (16). Umsetzvorrichtung nach Anspruch 6,
dadurch gekennzeichnet, daß
das Verstellglied (21) in wenigstens einer Linearführung (23) gelagert ist.Transfer device according to claim 6,
characterized in that
the adjusting member (21) is mounted in at least one linear guide (23). Umsetzvorrichtung nach Anspruch 7,
dadurch gekennzeichnet, daß
die Linearführung als Führungsschiene (23) ausgebildet ist.Transfer device according to claim 7,
characterized in that
the linear guide is designed as a guide rail (23). Umsetzvorrichtung nach Anspruch 2 und 6,
dadurch gekennzeichnet, daß
der Kulissenstein (5) in dem Verstellglied (21) gelagert ist.Transfer device according to claim 2 and 6,
characterized in that
the sliding block (5) is mounted in the adjusting member (21). Umsetzvorrichtung nach Anspruch 6,
dadurch gekennzeichnet, daß
wenigstens die Verstellglieder (21) gegenüberliegender Laufwägen (2,15) synchronisiert angetrieben sind.Transfer device according to claim 6,
characterized in that
at least the adjusting members (21) of opposite carriages (2, 15) are driven synchronously. Umsetzvorrichtung nach Anspruch 6 und 7,
dadurch gekennzeichnet, daß
das Verstellglied (21) auf dem Kulissenstein (5) angeordnet ist.Transfer device according to claims 6 and 7,
characterized in that
the adjusting member (21) is arranged on the sliding block (5). Umsetzvorrichtung nach Anspruch 7 und 11,
dadurch gekennzeichnet, daß
auf dem Kulissenstein (5) ein Zwischenglied angeordnet ist, welches die Linearführung (23) trägt.Transfer device according to claims 7 and 11,
characterized in that
an intermediate member is arranged on the sliding block (5), which carries the linear guide (23). Umsetzvorrichtung nach Anspruch 1 bis 12,
dadurch gekennzeichnet, daß
in der Quertraverse (12) eine Längenausgleichseinrichtung (24) vorgesehen ist.Transfer device according to claims 1 to 12,
characterized in that
A length compensation device (24) is provided in the crossbar (12). Umsetzvorrichtung nach Anspruch 13,
dadurch gekennzeichnet, daß
die Längenausgleichseinrichtung als Teleskoprohr (24) ausgebildet ist.Transfer device according to claim 13,
characterized in that
the length compensation device is designed as a telescopic tube (24). Umsetzvorrichtung nach Anspruch 12 und 13,
dadurch gekennzeichnet, daß
die Quertraverse (12) an ihren Enden jeweils über wenigstens ein Gelenk (25,26) mit dem Kulissenstein (5) oder dem Zwischenglied verbunden ist.Transfer device according to claims 12 and 13,
characterized in that
the crossbar (12) has at its ends each with at least one joint (25, 26) with the sliding block (5) or the intermediate link is connected.
EP95107533A 1994-05-26 1995-05-18 Transfer device in a forming machine, in particular in a transferpress Expired - Lifetime EP0685276B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4418417 1994-05-26
DE4418417A DE4418417A1 (en) 1994-05-26 1994-05-26 Transfer device in a forming machine, in particular a transfer press

Publications (2)

Publication Number Publication Date
EP0685276A1 true EP0685276A1 (en) 1995-12-06
EP0685276B1 EP0685276B1 (en) 1998-09-02

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Country Status (8)

Country Link
US (1) US5727416A (en)
EP (1) EP0685276B1 (en)
KR (1) KR100346866B1 (en)
CN (1) CN1081962C (en)
CZ (1) CZ339695A3 (en)
DE (2) DE4418417A1 (en)
ES (1) ES2123857T3 (en)
WO (1) WO1995032822A1 (en)

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EP3978157A1 (en) 2020-10-01 2022-04-06 Fagor Arrasate, S.Coop. Transfer device
EP4201551A1 (en) 2021-12-27 2023-06-28 Fagor Arrasate, S.Coop. Conveyor apparatus for a press installation

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DE20114619U1 (en) 2001-09-04 2001-12-13 Schuler Pressen GmbH & Co. KG, 73033 Göppingen Device for transporting workpieces in a forming press
DE10157328A1 (en) * 2001-11-23 2003-06-12 Schuler Pressen Gmbh & Co Device for transporting workpieces within a multi-stage press
JP4269612B2 (en) * 2002-09-18 2009-05-27 株式会社Ｉｈｉ Transfer press work transfer device
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EP3978157A1 (en) 2020-10-01 2022-04-06 Fagor Arrasate, S.Coop. Transfer device
EP4201551A1 (en) 2021-12-27 2023-06-28 Fagor Arrasate, S.Coop. Conveyor apparatus for a press installation

Also Published As

Publication number Publication date
WO1995032822A1 (en) 1995-12-07
ES2123857T3 (en) 1999-01-16
EP0685276B1 (en) 1998-09-02
KR100346866B1 (en) 2002-11-14
DE4418417A1 (en) 1995-11-30
CZ339695A3 (en) 1996-07-17
DE59503406D1 (en) 1998-10-08
CN1081962C (en) 2002-04-03
KR960703689A (en) 1996-08-31
US5727416A (en) 1998-03-17
CN1128965A (en) 1996-08-14

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