EP2229247B1 - Press for shaping workpieces - Google Patents

Press for shaping workpieces Download PDF

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Publication number
EP2229247B1
EP2229247B1 EP08867344.7A EP08867344A EP2229247B1 EP 2229247 B1 EP2229247 B1 EP 2229247B1 EP 08867344 A EP08867344 A EP 08867344A EP 2229247 B1 EP2229247 B1 EP 2229247B1
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EP
European Patent Office
Prior art keywords
workpieces
press
transfer device
gripper
adjustable
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.)
Not-in-force
Application number
EP08867344.7A
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German (de)
French (fr)
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EP2229247A2 (en
Inventor
Klemens Nock
Uwe Zeibig
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Sander Automation GmbH
Original Assignee
Erdrich Beteiligungs GmbH
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Application filed by Erdrich Beteiligungs GmbH filed Critical Erdrich Beteiligungs GmbH
Publication of EP2229247A2 publication Critical patent/EP2229247A2/en
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Publication of EP2229247B1 publication Critical patent/EP2229247B1/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
    • B21D43/003—Positioning devices

Definitions

  • the invention relates to a press for producing or forming in several steps their final shape obtaining workpieces, which are transportable by means of a transfer device for stepwise shifting to individual forming points of the press, wherein the transfer device for stepwise displacement at least one or two in Feed direction for the feed and return movement back and forth movable, gripper parts or gripper areas for detecting the workpieces having gripper rails which are adjustable for detecting the workpieces and moving in the feed direction and then back to initial position, the press at least one for an upward and a table provided for downward movement, which is designed as a plunger or stator plate and in particular for receiving a shuttle table with at least a portion of the tool, preferably the lower tool, is provided and for transmitting the pressing force is movable with its upward movement from bottom to top against a fixed counterpart.
  • the transfer device for stepwise displacement at least one or two in Feed direction for the feed and return movement back and forth movable, gripper parts or gripper areas for detecting the workpieces having gripper rails which
  • transfer devices belonging to presses of this kind for stepwise displacement of the workpieces within this press are no longer needed DE 102 06 773 C1 or off DE 10 2004 023 525 B4 known and have proven themselves.
  • these prior art devices are intended to move workpieces within presses, in which the pressing movement is exerted from above on the workpiece, which is doing on a fixed table or base of the press supported.
  • the invention is therefore an object of the invention to provide for a press of the type mentioned with upwardly movable table or plunger, a transfer device for the gradual displacement of workpieces and adapt, with the most economical and effective processing of the workpieces is possible.
  • the initially defined press is characterized in that the transfer device for moving the workpieces with the table or plunger mitbewegbar arranged or formed and during the downward movement of the table in the sense of a displacement of workpieces can be actuated.
  • a further advantageous embodiment of the invention can provide that the transfer device with its drive relative to the table is adjustable so that the area of the tool located on the table for a change from the side is accessible. Thus, a tool change despite the attachment of the transfer device to the table is easily possible.
  • a favorable embodiment may provide that the adjustable transfer device is mounted with its drive on a rail guide approximately horizontally movable and adjustable in particular in its extension direction. If the transfer device is displaced out of the range of use with the gripper rail (s) in its direction of extent, the tool area of the press becomes easily accessible from the side.
  • a further or additional embodiment can provide that the transfer device with its drive is adjustable transversely or at right angles to its extension upwards or downwards or to the side for releasing the area for the tool change.
  • the transfer device with its drive is adjustable transversely or at right angles to its extension upwards or downwards or to the side for releasing the area for the tool change.
  • the gripper rail or can Gripper rails of the transfer device and the movable holder releasably and be stored on a shelf or console on the press.
  • the gripper rails do not need to be adjusted when changing tools or repairs, but it is sufficient to move their drive, which is easier and also requires less space.
  • the gripper rails having transfer device may be mitbewegbar with the table or plunger or it may be provided an additional stand for which this device can join the table movements via suitable coupling means, whereby the table receives a lower weight.
  • a designated as a whole with 1 press is used to form in several steps their final form obtaining workpieces 2, which are transported by means of a generally designated 3 transfer device stepwise to individual deformation points of the press 1, as for example DE 10 2004 023 525 B4 is known in principle.
  • the transfer device 3 for stepwise shifting has two in the feed direction according to the arrow PF1 in FIG Figure 4 in the feed direction for the feed and in the opposite direction for a return movement movable back and forth, gripper parts 4 for detecting the workpieces 2 having gripper rails 5, which are adjustable in a known manner for detecting the workpieces and moving in the feed direction and then back to home position, wherein also a lift-off movement of the workpieces takes place from the respective deformation point.
  • the press 1 has an intended for an upward and downward movement table 6, which is designed as a plunger or stator plate and for receiving a shuttle table 7 with at least a portion of the respective tool, in the embodiment of the lower tool is provided.
  • an upward and downward movement table 6 which is designed as a plunger or stator plate and for receiving a shuttle table 7 with at least a portion of the respective tool, in the embodiment of the lower tool is provided.
  • To transmit the pressing force of this table 6 is movable from bottom to top against a fixed counterpart 8.
  • the transfer device 3 is arranged to move the workpieces 2 with the movable up and down table 6 and the shuttle table 7 mit Unterwerkmaschinemaschine mitbewegbar and during the downward movement of the table 6 away from the counterpart 8 in the sense of a shift can be actuated by workpieces 2 in the feed direction.
  • the time in which the table is moved from the upper pressing position to a lower position, for operating the transfer device 3 and the further movement of the workpieces 2 can be utilized.
  • the transfer device 3 for moving or transporting the workpieces 2 on the table 6 or tappet 7 is fastened indirectly via bearings to be described, whereby the movement with the table 6 takes place automatically.
  • the transfer device 3 is slidably guided on vertical supports 9 and coupled or engageable with the table 6 via drivers 10 so that the table 6 has a lesser load to carry, yet the transfer device 3 can join the table movement to enter the lowered position to transport the workpieces 2 or to be able to transport further.
  • the closing movement of the gripper rails 5 is thus provided during the downward movement of the table 6 and the lower tool of the press 1 and the lifting and further transporting of the workpieces 2 can take place during the further lowering of the table 6, so that during the subsequent upward movement of the table 6 and the lower tool the gripper rails 5 again from the workpieces 2 in the in Fig. 5 shown position are movable away.
  • the press 1 can thus work with the mitbewegbaren with the table 6 transfer device 3 in shorter cycle times, as if the device 3 is not taken from the table 6.
  • the transfer device 3 for the workpiece transfer with its drive relative to the table 6 is adjustable so that the area of the tool located on the table 6 is accessible, for example, for a change of this tool or for a repair from the side , Above all in Fig. 6 It can be seen clearly that the transfer device 3 - detached from the gripper rails 5, are moved on rail guides 11 out of the press area. This results in simultaneous consideration of FIGS. 6 and 7 in that the adjustable transfer device 3 is mounted with its drive on the rail guide 11 approximately horizontally movable and adjustable in the direction of extent or feed direction of the workpieces. Thus, the area on the side of the press 1 where the tools are located becomes free for replacement or repair.
  • the transfer device 3 with or without Gripper rails 5 in particular with its drive perpendicular to the feed direction and its extent up or down or even to the side is adjustable to release the area for a tool change on the press 1.
  • Fig. 2 It is shown how the transfer device 3 - without the case of her loosening gripper rails 5 - is moved away from the table 6, and then in the in Fig. 6 shown position to be moved.
  • Fig. 2 and 6 is still shown that the gripper rails 5 can be solved with the grippers 4 when not in use of the transfer device 3 and its drive and stored on a tray 13 on the press 1. In this case, this tray 13 is located laterally from the actual tool area.
  • the press 1 for deforming workpieces 2 in several steps has a transfer device 3 with gripper rails 5 in order to stepwise grasp and move the workpieces 2.
  • the table 6 supporting the pressing tool or the bottom tools of the press 1 is movable up and down and the transfer device 3 is movable with this table 6 by being attached either directly or indirectly to the table 6 or to carriers 9 held and coupled via driver 10 directly or indirectly with the table to join in its movement.
  • the transfer device 3 can be operated with the gripper rails 5 during the downward movement of the table 6 in the sense of further movement of the workpieces 2.

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

Description

Die Erfindung betrifft eine Presse zum Herstellen oder Formen von in mehreren Schritten ihre endgültige Form erlangenden Werkstücken, die mit Hilfe einer Transfer-Vorrichtung zum schrittweisen Verschieben zu einzelnen Umformstellen der Presse transportierbar sind, wobei die Transfer-Vorrichtung zum schrittweisen Verschieben wenigstens ein oder zwei in Vorschubrichtung für die Vorschub- und Rücklaufbewegung hin und her bewegbare, Greiferteile oder Greiferbereiche zum Erfassen der Werkstücke aufweisende Greiferschienen hat, die zum Erfassen der Werkstücke und zum Bewegen in Vorschubrichtung und anschließend wieder in Ausgangsstellung verstellbar sind, wobei die Presse wenigstens einen für eine Aufwärts- und eine Abwärtsbewegung vorgesehenen Tisch aufweist, der als Stößel oder Ständerplatte ausgebildet und insbesondere zur Aufnahme eines Wechseltisches mit wenigstens einem Teil des Werkzeuges, vorzugsweise des Unterwerkzeugs, vorgesehen ist und zur Übertragung der Presskraft mit seiner Aufwärtsbewegung von unten nach oben gegen ein feststehendes Gegenstück bewegbar ist.The invention relates to a press for producing or forming in several steps their final shape obtaining workpieces, which are transportable by means of a transfer device for stepwise shifting to individual forming points of the press, wherein the transfer device for stepwise displacement at least one or two in Feed direction for the feed and return movement back and forth movable, gripper parts or gripper areas for detecting the workpieces having gripper rails which are adjustable for detecting the workpieces and moving in the feed direction and then back to initial position, the press at least one for an upward and a table provided for downward movement, which is designed as a plunger or stator plate and in particular for receiving a shuttle table with at least a portion of the tool, preferably the lower tool, is provided and for transmitting the pressing force is movable with its upward movement from bottom to top against a fixed counterpart.

Zu derartigen Pressen gehörende Transfer-Vorrichtungen zum schrittweisen Verschieben der Werkstücke innerhalb dieser Presse sind beispielsweise aus DE 102 06 773 C1 oder aus DE 10 2004 023 525 B4 bekannt und haben sich bewährt. Dabei sind diese vorbekannten Vorrichtungen dafür vorgesehen, Werkstücke innerhalb von Pressen zu bewegen, bei denen die Pressbewegung von oben her auf das Werkstück ausgeübt wird, welches sich dabei an einem feststehenden Tisch oder Untergestell der Presse abstützt.For example, transfer devices belonging to presses of this kind for stepwise displacement of the workpieces within this press are no longer needed DE 102 06 773 C1 or off DE 10 2004 023 525 B4 known and have proven themselves. In this case, these prior art devices are intended to move workpieces within presses, in which the pressing movement is exerted from above on the workpiece, which is doing on a fixed table or base of the press supported.

Es sind aber auch Pressen oder Umformmaschinen bekannt, bei denen der Tisch als Stößel oder Ständerplatte ausgebildet ist und zur Übertragung der Presskraft von unten nach oben gegen ein feststehendes Gegenstück bewegt wird. Bei derartigen bekannten Pressen befindet sich die Vorrichtung zum Verschieben der Werkstücke seitlich von dem beweglichen Tisch oder Stößel und es muss für deren Bewegung und Handhabung jeweils abgewartet werden, bis der Tisch seine abgesenkte Stellung erreicht hat. Erst dann können die Werkstücke erfasst und weitertransportiert werden, was einen beachtlichen Zeitverlust bedeutet.But there are also presses or forming machines are known in which the table is designed as a ram or stator plate and is moved to transmit the pressing force from bottom to top against a fixed counterpart. In such known presses, the device for moving the workpieces is located laterally of the movable table or plunger and it must be waited for their movement and handling each, until the table has reached its lowered position. Only then can the workpieces be captured and transported, which means a considerable loss of time.

Der Erfindung liegt deshalb die Aufgabe zugrunde, für eine Presse der eingangs genannten Art mit aufwärtsbewegbarem Tisch oder Stößel eine Transfer-Vorrichtung zum schrittweisen Verschieben von Werkstücken zu schaffen und anzupassen, mit der eine möglichst wirtschaftliche und effektive Bearbeitung der Werkstücke möglich ist.The invention is therefore an object of the invention to provide for a press of the type mentioned with upwardly movable table or plunger, a transfer device for the gradual displacement of workpieces and adapt, with the most economical and effective processing of the workpieces is possible.

Zur Lösung dieser Aufgabe ist die eingangs definierte Presse dadurch gekennzeichnet, dass die Transfer-Vorrichtung zum Verschieben der Werkstücke mit dem Tisch oder Stößel mitbewegbar angeordnet oder ausgebildet und während der Abwärtsbewegung des Tisches im Sinne einer Verschiebung von Werkstücken betätigbar ist.To solve this problem, the initially defined press is characterized in that the transfer device for moving the workpieces with the table or plunger mitbewegbar arranged or formed and during the downward movement of the table in the sense of a displacement of workpieces can be actuated.

Dadurch wird ermöglicht, die Transfer- oder Vorschubvorrichtung mit der oder den Greiferschienen für die Werkstücke so anzubringen, dass die Werkstücke schon erfasst werden können, bevor der Tisch oder Stößel vollständig abgesenkt ist, so dass entsprechend viel Zeit eingespart, also ein unnötiger Zeitverlust vermieden wird. Sowie das jeweilige Werkstück genügend frei ist, kann die Vorrichtung bereits zum Transport dieses Werkstücks betätigt und das Werkstück erfasst und weiterbewegt werden.This makes it possible to attach the transfer or feed device with the one or more gripper rails for the workpieces so that the workpieces can already be detected before the table or plunger is completely lowered, so that saves a corresponding amount of time, so an unnecessary Time loss is avoided. As soon as the respective workpiece is sufficiently free, the device can already be actuated to transport this workpiece and the workpiece can be detected and moved on.

Besonders zweckmäßig ist es dabei, wenn die Transfer-Vorrichtung zum Verschieben oder Transportieren der Werkstücke an dem Tisch oder Stößel direkt oder indirekt befestigt oder anbringbar oder über Mitnehmer direkt oder indirekt mit dem Tisch gekoppelt oder kuppelbar ist.It is particularly useful in this case if the transfer device for moving or transporting the workpieces on the table or plunger directly or indirectly attached or attachable or coupled via driver directly or indirectly with the table or can be coupled.

Dadurch ist es auf besonders einfache Weise möglich, dass zunächst vor allem schon die Schließbewegung der Greiferschienen der Transfer-Vorrichtung während der Abwärtsbewegung erfolgt, danach, wenn die Abwärtsbewegung für die das Werkstück beaufschlagende Form genügend weit vorangeschritten ist, das Werkstück relativ zu der Form oder deren Unterteil anzuheben und weiter zu transportieren, so dass schon während der sich anschließenden Aufwärtsbewegung des Tisches oder der von ihm getragenen Form die Greiferschienen von den Werkstücken wegbewegt werden, damit die nächste Verformung ungestört durchgeführt werden kann.This makes it possible in a particularly simple manner, that first of all especially the closing movement of the gripper rails of the transfer device during the downward movement takes place, then, when the downward movement is sufficiently advanced for the workpiece acting on the mold, the workpiece relative to the mold or raise their lower part and continue to transport, so that even during the subsequent upward movement of the table or carried by him form the gripper rails are moved away from the workpieces, so that the next deformation can be performed undisturbed.

Es kann also in sinnreicher Weise die Auf- und Abwärtsbewegung, die für die Verformung der Werkstücke jeweils erforderlich ist, bestmöglich durch die verschiedenen Arbeitsschritte der Transfer-Vorrichtung für den Vorschub dieser Werkstücke ausgenutzt werden.It is thus possible in an ingenious manner to make the best possible use of the upward and downward movement, which is required in each case for the deformation of the workpieces, through the various working steps of the transfer device for the advance of these workpieces.

Dies wird vor allem dadurch erreicht, dass die Schließbewegung der Greiferschienen während der Abwärtsbewegung des Tisches oder Stößels der Presse vorgesehen ist und dass insbesondere das Anheben und Weitertransportieren des oder der Werkstücke während des weiteren Absenkens des Tisches oder Stößels durchführbar ist und dass während der anschließenden Aufwärtsbewegung des Tisches oder Stößels die Greiferschienen von den Werkstücken wegbewegbar sind.This is achieved above all by the fact that the closing movement of the gripper rails is provided during the downward movement of the table or plunger of the press and that in particular the lifting and further transport of the workpiece or workpieces during the further lowering of the table or plunger is feasible and that during the subsequent upward movement of the table or plunger, the gripper rails are movable away from the workpieces.

Eine weitere vorteilhafte Ausgestaltung der Erfindung kann vorsehen, dass die Transfer-Vorrichtung mit ihrem Antrieb relativ zu dem Tisch derart verstellbar ist, dass der Bereich des an dem Tisch befindlichen Werkzeugs für einen Wechsel von der Seite her zugänglich ist. Somit ist auch ein Werkzeugwechsel trotz der Anbringung der Transfer-Vorrichtung an dem Tisch problemlos möglich.A further advantageous embodiment of the invention can provide that the transfer device with its drive relative to the table is adjustable so that the area of the tool located on the table for a change from the side is accessible. Thus, a tool change despite the attachment of the transfer device to the table is easily possible.

Eine günstige Ausführungsform kann dabei vorsehen, dass die verstellbare Transfer-Vorrichtung mit ihrem Antrieb an einer Schienenführung etwa horizontal verfahrbar gelagert und insbesondere in ihrer Erstreckungsrichtung verstellbar ist. Wird die Transfer-Vorrichtung mit der oder den Greiferschienen in deren Erstreckungsrichtung aus dem Benutzungsbereich verschoben, wird der Werkzeug-Bereich der Presse von der Seite her gut und einfach zugänglich.A favorable embodiment may provide that the adjustable transfer device is mounted with its drive on a rail guide approximately horizontally movable and adjustable in particular in its extension direction. If the transfer device is displaced out of the range of use with the gripper rail (s) in its direction of extent, the tool area of the press becomes easily accessible from the side.

Eine weitere oder zusätzliche Ausgestaltung kann vorsehen, dass die Transfer-Vorrichtung mit ihrem Antrieb quer oder rechtwinklig zu ihrer Erstreckung nach oben oder nach unten oder nach der Seite zum Freigeben des Bereichs für den Werkzeugwechsel verstellbar ist. Es können also die Platzverhältnisse berücksichtigt werden, die im Bereich der Presse vorhanden sind, um die Transfer-Vorrichtungen so verstellbar vorzusehen, dass für den Werkzeugwechsel auf einfache Weise Platz geschaffen werden kann.A further or additional embodiment can provide that the transfer device with its drive is adjustable transversely or at right angles to its extension upwards or downwards or to the side for releasing the area for the tool change. Thus, it is possible to take into account the space available in the area of the press in order to provide the transfer devices in an adjustable manner so that space can be easily created for the tool change.

Bei Nichtgebrauch kann die Greiferschiene oder können die Greiferschienen von der Transfer-Vorrichtung und deren verfahrbarer Halterung lösbar und auf einer Ablage oder Konsole an der Presse ablegbar sein. Somit brauchen die Greiferschienen beim Werkzeugwechsel oder bei Reparaturen nicht mit verstellt zu werden, sondern es genügt, ihren Antrieb zu verschieben, was einfacher ist und auch weniger Platz benötigt.When not in use, the gripper rail or can Gripper rails of the transfer device and the movable holder releasably and be stored on a shelf or console on the press. Thus, the gripper rails do not need to be adjusted when changing tools or repairs, but it is sufficient to move their drive, which is easier and also requires less space.

Vor allem bei Kombination einzelner oder mehrerer der vorbeschriebenen Merkmale und Maßnahmen ergibt sich eine Presse mit auf- und ab bewegbarem Tisch oder Stößel, bei welcher schon während der Tischbewegungen die seitlichen Bewegungen der Greiferschienen, sei es zum Loslassen der Werkstücke, sei es zum erneuten Erfassen der Werkstücke ausgenutzt werden können, statt abwarten zu müssen, bis das der Tisch oder Stößel jeweils seine untere Position, also die Transportlage für die Werkstücke erreicht hat. Wenn diese Transportlage erreicht ist, kann also sofort auch der entsprechende Transport der Werkstücke stattfinden, statt dass zunächst die Greiferschienen zugestellt werden müssen.Especially when combining one or more of the features and measures described above results in a press with up and down movable table or plunger, in which already during the table movements, the lateral movements of the gripper rails, either to let go of the workpieces, be it for re-capture The workpieces can be exploited, instead of having to wait until the table or plunger has reached its lower position, ie the transport position for the workpieces. When this transport position is reached, therefore, the corresponding transport of the workpieces can take place immediately, instead of first having to deliver the gripper rails.

Dabei kann die die Greiferschienen aufweisende Transfer-Vorrichtung mit dem Tisch oder Stößel mitbewegbar sein oder es kann ein zusätzlicher Ständer dafür vorgesehen sein, an welchem diese Vorrichtung über geeignete Kupplungsmittel die Tischbewegungen mitmachen kann, wodurch der Tisch ein geringeres Gewicht erhält.In this case, the gripper rails having transfer device may be mitbewegbar with the table or plunger or it may be provided an additional stand for which this device can join the table movements via suitable coupling means, whereby the table receives a lower weight.

Nachstehend sind Ausführungsbeispiele der Erfindung anhand der Zeichnung näher beschrieben. Es zeigt in zum Teil erheblich schematisierter Darstellung:

Fig. 1
Eine Ansicht einer Presse zum Verformen von in mehreren Schritten ihre endgültige Form erlangenden Werkstücken, die einen für eine Aufwärts- und eine Abwärtsbewegung vorgesehenen Tisch als Stößel- oder Ständerplatte und eine Transfer-Vorrichtung zum schrittweisen Verschieben der Werkstücke mit Greiferschienen aufweist, wobei diese Vorrichtung mit den Greiferschienen an dem Tisch oder Stößel befestigt und mit diesem auf und ab mitbewegbar ist,
Fig. 2
eine der Fig.1 entsprechende Darstellung, bei welcher die Transfer-Vorrichtung zum Verschieben der Werkstücke in Ruhestellung aus dem Bereich der Presse herausbewegt ist,
Fig. 3
eine abgewandelte Ausführungsform, bei welcher die Transfer-Vorrichtung mit den Greiferschienen an separaten Trägern mit der Bewegung des Tisches auf und ab verschiebbar gelagert und über Mitnehmer mit diesem Tisch verbunden ist,
Fig. 4
eine Draufsicht des Tisches und des darauf befindlichen Unterwerkzeugs, an welchem Werkstücke angeordnet und von Greiferteilen der Greiferschienen erfasst sind, um in eine nächste Position weiterbewegt zu werden,
Fig. 5
eine der Fig.4 entsprechende Darstellung, bei welcher sich die Greiferschienen mit ihren Greifern außer Eingriff in einer Nullstellung oder Mittelstellung befinden,
Fig. 6
eine den Fig.4 und 5 entsprechende Darstellung, die die Transfer-Vorrichtung zum Verschieben der Werkstücke in einer aus dem Bereich des Tisches und Stößels verschobenen Position zeigt, wobei die Greiferschienen mit den Greifern selbst auf einer Konsole abgelegt sind, sowie
Fig. 7
eine Seitenansicht der erfindungsgemäßen Presse, wobei sich die Transfer-Vorrichtung zum Verschieben der Werkstücke mit den Greiferschienen in ihrer Gebrauchslage im Bereich des Tisches und des Unterwerkzeugs befinden.
Hereinafter, embodiments of the invention are described in more detail with reference to the drawing. It shows in partly considerably schematized representation:
Fig. 1
A view of a press for deforming in several steps to its final form Workpieces having a table for upward and downward movement as a ram or stator plate and a transfer device for stepwise movement of the workpieces with gripper rails, this device being attached to the gripper rails on the table or ram and up and down therewith is mitbewegbar,
Fig. 2
one of the Fig.1 corresponding representation in which the transfer device for moving the workpieces in the rest position is moved out of the region of the press,
Fig. 3
a modified embodiment in which the transfer device with the gripper rails on separate carriers with the movement of the table up and down slidably mounted and connected via drivers with this table,
Fig. 4
a top view of the table and the lower tool located thereon, on which workpieces are arranged and gripped by gripper parts of the gripper rails to be moved to a next position,
Fig. 5
one of the Figure 4 corresponding representation in which the gripper rails are with their grippers out of engagement in a zero position or middle position,
Fig. 6
a the Figure 4 and 5 corresponding representation showing the transfer device for moving the workpieces in one of the area of the table and Plunger shifted position shows, with the gripper rails are stored with the grippers themselves on a console, and
Fig. 7
a side view of the press according to the invention, wherein the transfer device for moving the workpieces with the gripper rails are in their position of use in the region of the table and the lower tool.

Bei der nachfolgenden Beschreibung der Ausführungsbeispiele erhalten in ihrer Funktion übereinstimmende Teile auch bei abgewandelter Formgebung übereinstimmende Bezugszahlen.In the following description of the embodiments obtained in their function matching parts even with a modified shape matching reference numerals.

Eine im Ganzen mit 1 bezeichnete Presse, dient zum Formen von in mehreren Schritten ihre endgültige Form erlangenden Werkstücken 2, die mit Hilfe einer im Ganzen mit 3 bezeichneten Transfer-Vorrichtung schrittweise zu einzelnen Umformstellen der Presse 1 transportierbar sind, wie es beispielsweise aus DE 10 2004 023 525 B4 vom Prinzip her bekannt ist.A designated as a whole with 1 press, is used to form in several steps their final form obtaining workpieces 2, which are transported by means of a generally designated 3 transfer device stepwise to individual deformation points of the press 1, as for example DE 10 2004 023 525 B4 is known in principle.

Die Transfer-Vorrichtung 3 zum schrittweisen Verschieben weist in den Ausführungsbeispielen zwei in Vorschubrichtung gemäß dem Pfeil PF1 in Fig.4 in Vorschubrichtung für den Vorschub und in entgegengesetzter Richtung für eine Rücklaufbewegung hin und her bewegbare, Greiferteile 4 zum Erfassen der Werkstücke 2 aufweisende Greiferschienen 5 auf, die in bekannter Weise zum Erfassen der Werkstücke und zum Bewegen in Vorschubrichtung und anschließend wieder in Ausgangsstellung verstellbar sind, wobei auch eine Abhebebewegung der Werkstücke von der jeweiligen Verformungsstelle stattfindet.In the exemplary embodiments, the transfer device 3 for stepwise shifting has two in the feed direction according to the arrow PF1 in FIG Figure 4 in the feed direction for the feed and in the opposite direction for a return movement movable back and forth, gripper parts 4 for detecting the workpieces 2 having gripper rails 5, which are adjustable in a known manner for detecting the workpieces and moving in the feed direction and then back to home position, wherein also a lift-off movement of the workpieces takes place from the respective deformation point.

In beiden Ausführungsbeispielen ist vorgesehen, dass die Presse 1 einen für eine Aufwärts- und eine Abwärtsbewegung vorgesehenen Tisch 6 aufweist, der als Stößel oder Ständerplatte ausgebildet und zur Aufnahme eines Wechseltisches 7 mit wenigstens einem Teil des jeweiligen Werkzeugs, im Ausführungsbeispiel des Unterwerkzeugs, vorgesehen ist. Zur Übertragung der Presskraft ist dieser Tisch 6 von unten nach oben gegen ein feststehendes Gegenstück 8 bewegbar.In both embodiments, it is provided that the press 1 has an intended for an upward and downward movement table 6, which is designed as a plunger or stator plate and for receiving a shuttle table 7 with at least a portion of the respective tool, in the embodiment of the lower tool is provided. To transmit the pressing force of this table 6 is movable from bottom to top against a fixed counterpart 8.

Bei beiden Ausführungsbeispielen, nämlich dem gemäß Fig. 1 und 2 einerseits und dem gemäß Fig. 3 andererseits ist vorgesehen, dass die Transfer-Vorrichtung 3 zum Bewegen der Werkstücke 2 mit dem auf und ab bewegbaren Tisch 6 und dessen Wechseltisch 7 mit Unterwerkzeug mitbewegbar angeordnet oder ausgebildet ist und während der Abwärtsbewegung des Tisches 6 von dem Gegenstück 8 weg im Sinne einer Verschiebung von Werkstücken 2 in deren Vorschubrichtung betätigt werden kann. Somit kann die Zeit, in welcher der Tisch aus der oberen Pressposition in eine tiefere Stellung verfahren wird, zum Betätigen der Transfer-Vorrichtung 3 und der Weiterbewegung der Werkstücke 2 ausgenutzt werden.In both embodiments, namely the according to Fig. 1 and 2 on the one hand and according to Fig. 3 On the other hand, it is provided that the transfer device 3 is arranged to move the workpieces 2 with the movable up and down table 6 and the shuttle table 7 mit Unterwerkzeug mitbewegbar and during the downward movement of the table 6 away from the counterpart 8 in the sense of a shift can be actuated by workpieces 2 in the feed direction. Thus, the time in which the table is moved from the upper pressing position to a lower position, for operating the transfer device 3 and the further movement of the workpieces 2 can be utilized.

Im Ausführungsbeispiel gemäß den Fig.1 und 2 ist die Transfer-Vorrichtung 3 zum Verschieben oder Transportieren der Werkstücke 2 an dem Tisch 6 oder Stößel 7 indirekt über noch zu beschreibende Lagerungen befestigt, wodurch die Mitbewegung mit dem Tisch 6 automatisch erfolgt.In the embodiment according to the Fig.1 and 2 For example, the transfer device 3 for moving or transporting the workpieces 2 on the table 6 or tappet 7 is fastened indirectly via bearings to be described, whereby the movement with the table 6 takes place automatically.

Im Ausführungsbeispiel gemäß Fig.3 ist die Transfer-Vorrichtung 3 an vertikalen Trägern 9 verschieblich geführt und über Mitnehmer 10 mit dem Tisch 6 gekuppelt oder kuppelbar, so dass der Tisch 6 eine geringere Last zu tragen hat, dennoch aber die Transfer-Vorrichtung 3 die Tischbewegung mitmachen kann, um in der abgesenkten Position die Werkstücke 2 transportieren oder weitertransportieren zu können.In the embodiment according to Figure 3 For example, the transfer device 3 is slidably guided on vertical supports 9 and coupled or engageable with the table 6 via drivers 10 so that the table 6 has a lesser load to carry, yet the transfer device 3 can join the table movement to enter the lowered position to transport the workpieces 2 or to be able to transport further.

Die Schließbewegung der Greiferschienen 5 ist also während der Abwärtsbewegung des Tisches 6 und des Unterwerkzeugs der Presse 1 vorgesehen und das Anheben und Weitertransportieren der Werkstücke 2 kann während des weiteren Absenkens des Tisches 6 erfolgen, so dass während der anschließenden Aufwärtsbewegung des Tisches 6 und des Unterwerkzeugs die Greiferschienen 5 wieder von den Werkstücken 2 in die in Fig. 5 dargestellte Lage weg bewegbar sind.The closing movement of the gripper rails 5 is thus provided during the downward movement of the table 6 and the lower tool of the press 1 and the lifting and further transporting of the workpieces 2 can take place during the further lowering of the table 6, so that during the subsequent upward movement of the table 6 and the lower tool the gripper rails 5 again from the workpieces 2 in the in Fig. 5 shown position are movable away.

Die Presse 1 kann also mit der mit dem Tisch 6 mitbewegbaren Transfer-Vorrichtung 3 in kürzeren Taktzeiten arbeiten, als wenn die Vorrichtung 3 von dem Tisch 6 nicht mitgenommen wird.The press 1 can thus work with the mitbewegbaren with the table 6 transfer device 3 in shorter cycle times, as if the device 3 is not taken from the table 6.

Anhand der Figuren 2 und vor allem Fig.6 wird deutlich, dass die Transfer-Vorrichtung 3 für den Werkstücktransfer mit ihrem Antrieb relativ zu dem Tisch 6 derart verstellbar ist, dass der Bereich des an dem Tisch 6 befindlichen Werkzeugs beispielsweise für einen Wechsel dieses Werkzeugs oder für eine Reparatur von der Seite her zugänglich ist. Vor allen in Fig. 6 erkennt man deutlich, dass die Transfer-Vorrichtung 3 - von den Greiferschienen 5 gelöst, an Schienenführungen 11 aus dem Pressenbereich verfahren sind. Dabei ergibt sich bei gleichzeitiger Betrachtung der Figuren 6 und 7, dass die verstellbare Transfervorrichtung 3 mit ihrem Antrieb an der Schienenführung 11 etwa horizontal verfahrbar gelagert und in Erstreckungsrichtung beziehungsweise Vorschubrichtung der Werkstücke verstellbar ist. Somit wird der Bereich an der Seite der Presse 1, wo sich die Werkzeuge befinden, frei für einen Austausch oder eine Reparatur.Based on Figures 2 and especially Figure 6 It is clear that the transfer device 3 for the workpiece transfer with its drive relative to the table 6 is adjustable so that the area of the tool located on the table 6 is accessible, for example, for a change of this tool or for a repair from the side , Above all in Fig. 6 It can be seen clearly that the transfer device 3 - detached from the gripper rails 5, are moved on rail guides 11 out of the press area. This results in simultaneous consideration of FIGS. 6 and 7 in that the adjustable transfer device 3 is mounted with its drive on the rail guide 11 approximately horizontally movable and adjustable in the direction of extent or feed direction of the workpieces. Thus, the area on the side of the press 1 where the tools are located becomes free for replacement or repair.

Denkbar wäre auch, dass die Transfervorrichtung 3 mit oder ohne Greiferschienen 5 insbesondere mit ihrem Antrieb rechtwinklig zu der Vorschubrichtung und ihrer Erstreckung nach oben oder nach unten oder auch nach der Seite verstellbar ist, um den Bereich für einen Werkzeugwechsel an der Presse 1 freizugeben. In Fig. 2 ist dabei dargestellt, wie die Transfervorrichtung 3 - ohne die dabei von ihr gelösten Greiferschienen 5 - von dem Tisch 6 wegbewegt ist, um dann in die in Fig. 6 dargestellte Position verschoben werden zu können.It would also be conceivable that the transfer device 3 with or without Gripper rails 5 in particular with its drive perpendicular to the feed direction and its extent up or down or even to the side is adjustable to release the area for a tool change on the press 1. In Fig. 2 It is shown how the transfer device 3 - without the case of her loosening gripper rails 5 - is moved away from the table 6, and then in the in Fig. 6 shown position to be moved.

In den Fig. 2 und 6 ist noch dargestellt, dass die Greiferschienen 5 mit den Greifern 4 bei Nichtgebrauch von der Transfervorrichtung 3 und deren Antrieb gelöst und auf einer Ablage 13 an der Presse 1 abgelegt werden können. Dabei befindet sich diese Ablage 13 seitlich von dem eigentlichen Werkzeugbereich.In the Fig. 2 and 6 is still shown that the gripper rails 5 can be solved with the grippers 4 when not in use of the transfer device 3 and its drive and stored on a tray 13 on the press 1. In this case, this tray 13 is located laterally from the actual tool area.

Die Presse 1 zum Verformen von Werkstücken 2 in mehreren Schritten weist eine Transfer-Vorrichtung 3 mit Greiferschienen 5 auf, um die Werkstücke 2 schrittweise zu erfassen und weiter zu bewegen. Dabei ist der das oder die Unterwerkzeuge der Presse 1 tragende Tisch 6 zur Erzeugung der Presskraft auf und ab bewegbar und die Transfer-Vorrichtung 3 ist mit diesem Tisch 6 mitbewegbar ausgebildet, indem sie entweder direkt oder indirekt an dem Tisch 6 befestigt oder an Trägern 9 gehalten und über Mitnehmer 10 direkt oder indirekt mit dem Tisch gekuppelt ist, um dessen Bewegung mitzumachen. Somit kann die Transfer-Vorrichtung 3 mit den Greiferschienen 5 während der Abwärtsbewegung des Tisches 6 im Sinne einer Weiterbewegung der Werkstücke 2 betätigt werden.The press 1 for deforming workpieces 2 in several steps has a transfer device 3 with gripper rails 5 in order to stepwise grasp and move the workpieces 2. In this case, the table 6 supporting the pressing tool or the bottom tools of the press 1 is movable up and down and the transfer device 3 is movable with this table 6 by being attached either directly or indirectly to the table 6 or to carriers 9 held and coupled via driver 10 directly or indirectly with the table to join in its movement. Thus, the transfer device 3 can be operated with the gripper rails 5 during the downward movement of the table 6 in the sense of further movement of the workpieces 2.

Claims (7)

  1. Press (1) for producing or forming workpieces (2) that acquire their final form in a plurality of steps and are transportable to individual forming stations of the press (1) with the aid of a transfer device (3) for stepwise displacement, wherein the device (3) for stepwise displacement has at least one or two gripper rails (5) which are movable back and forth in the advancing direction for the advancing and return movement and have gripper parts (4) or gripper regions for grasping the workpieces (2), said gripper rails being adjustable for grasping the workpieces and for moving in the advancing direction and then back into the starting position, wherein the press (1) has at least one table (6) provided for an upward and a downward movement, said table being in the form of a ram or support plate and being provided in particular for receiving a shuttle table (7) having at least a part of the die, preferably the bottom die, and being movable from bottom to top counter to a stationary counterpart (8) in order to transfer the pressing force by way of its upward movement, characterized in that the transfer device (3) is arranged or designed to be movable together with the table (6) in order to displace the workpieces (2) and is actuable for the purpose of displacing workpieces during the downward movement of the table (6).
  2. Press according to Claim 1, characterized in that the transfer device (3) is directly or indirectly fastened or attachable to the table (6) or ram in order to displace or transport the workpieces (2) or is directly or indirectly coupled or coupleable to the table via carriers (10).
  3. Press according to Claim 1 or 2, characterized in that the closing movement of the gripper rails (5) is provided during the downward movement of the table (6) or ram of the press (1), and in that in particular the lifting and further transport of the workpiece or workpieces (2) can be carried out during the further lowering of the table (6) or ram, and in that the gripper rails (5) are movable away from the workpieces during the subsequent downward movement of the table (6) or ram.
  4. Press according to one of Claims 1 to 3, characterized in that, for workpiece transfer, the transfer device (3) is adjustable relative to the table (6) by way of its drive, such that the region of the die located on the table (6) is accessible from the side, for example for a die change.
  5. Press according to one of Claims 1 to 4, characterized in that the adjustable transfer device (3) is mounted in an approximately horizontally displaceable manner on a rail guide (11) by way of its drive and is adjustable in particular in its direction of extent.
  6. Press according to one of Claims 1 to 5, characterized in that the transfer device (3) is adjustable upwardly or downwardly or to the side, transversely or at right angles to its extent, in particular by way of its drive, in order to free the region for the die change.
  7. Press according to one of Claims 1 to 6, characterized in that the gripper rail(s) (5), when not in use, is/are detachable from the drive and the displaceable holder thereof and can be set down on a support (13) on the press (1).
EP08867344.7A 2007-12-29 2008-12-06 Press for shaping workpieces Not-in-force EP2229247B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710063145 DE102007063145B4 (en) 2007-12-29 2007-12-29 Press for forming workpieces
PCT/EP2008/010382 WO2009083104A2 (en) 2007-12-29 2008-12-06 Press for shaping workpieces

Publications (2)

Publication Number Publication Date
EP2229247A2 EP2229247A2 (en) 2010-09-22
EP2229247B1 true EP2229247B1 (en) 2013-11-06

Family

ID=40690796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08867344.7A Not-in-force EP2229247B1 (en) 2007-12-29 2008-12-06 Press for shaping workpieces

Country Status (4)

Country Link
EP (1) EP2229247B1 (en)
DE (1) DE102007063145B4 (en)
ES (1) ES2440541T3 (en)
WO (1) WO2009083104A2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3607323A1 (en) * 1985-03-20 1986-11-06 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Automatically convertible feed bar transfer for presses with sliding tables
AU5725699A (en) * 1998-10-05 2000-04-26 Adval Tech Holding Ag Transferring device on a press
DE10206773C1 (en) * 2002-02-19 2003-10-02 Sander Kg Gmbh & Co Device for advancing workpieces with gripper rails
DE102004023525B4 (en) 2004-05-13 2006-07-20 Erdrich Beteiligungs Gmbh Device for stepwise movement of workpieces

Also Published As

Publication number Publication date
EP2229247A2 (en) 2010-09-22
WO2009083104A2 (en) 2009-07-09
DE102007063145A1 (en) 2009-07-02
ES2440541T3 (en) 2014-01-29
WO2009083104A3 (en) 2009-11-05
DE102007063145B4 (en) 2009-12-31

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