EP0523478A1 - Transfer press line - Google Patents

Transfer press line Download PDF

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Publication number
EP0523478A1
EP0523478A1 EP92111316A EP92111316A EP0523478A1 EP 0523478 A1 EP0523478 A1 EP 0523478A1 EP 92111316 A EP92111316 A EP 92111316A EP 92111316 A EP92111316 A EP 92111316A EP 0523478 A1 EP0523478 A1 EP 0523478A1
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EP
European Patent Office
Prior art keywords
press
suction
presses
transfer
press line
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Granted
Application number
EP92111316A
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German (de)
French (fr)
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EP0523478B1 (en
Inventor
Wolfgang Hartung
Uwe Darr
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Umformtechnik Erfurt GmbH
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Umformtechnik Erfurt GmbH
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Publication of EP0523478A1 publication Critical patent/EP0523478A1/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
    • B21D43/057—Devices for exchanging transfer bars or grippers; Idle stages, e.g. exchangeable

Definitions

  • the invention relates to a transfer press line for processing large-area sheet metal parts in several work stages according to the preamble of claim 1.
  • a known press system of this type (DE-OS 39 05 069) consists of several presses set up at a short distance from one another, the press tables and head pieces of which are connected to one another by separate press stands or by two presses associated with two adjacent presses and which are connected by means of connecting shafts from a central drive are driven synchronously.
  • Each press contains only one stage. In the stand area between two work stages, an empty stage is provided in which the sheet metal parts are stored in a position-oriented manner. When changing tools, the height of the clipboards and the size, shape and inclined position of the sheet metal parts can be adjusted fully automatically using adjusting devices.
  • suction traverses which are slidably mounted in mounting rails that extend through the entire press system and are driven by the press drive via a cam mechanism.
  • suction traverses - detached from the mounting rails - are placed in the slots of the sliding tables and extended together with the tools from the press.
  • the clipboards in the empty stages are provided with part-specific storage stations which, when the tool is changed, are inserted in the receptacles provided on the sliding table in addition to the suction traverse and are moved out of the press together with the tool set.
  • the storage templates and suction traverses assigned to the new tool set are returned to the press in reverse order.
  • a disadvantage of the former solution is the considerable control effort for the automatic adjustment of the clipboard to the respective part shape and in the latter solution the high effort required for the automatic coupling and locking systems both on the clipboards and on the sliding tables.
  • the storage templates and suction traverses which are locked to the side of the tool set on the sliding table, require a not inconsiderable amount of space, which leads to a larger press stand width in the direction of travel of the sheet metal parts.
  • This increases the mass used, in particular for the rams guided on the press stands with optimum rigidity requirements and a favorable guidance ratio, which in turn has a negative effect on the dynamics of the drive.
  • the limited space between press stands and sliding tables considerably limits the use of wide suction spiders, which limits optimal handling of the sheet metal parts.
  • the invention is based on the problem of designing a transfer press line according to the preamble of patent claim 1 such that, due to a narrower design of the sliding tables in the parts transport direction, due to the elimination of the superstructures required for the coupling systems for receiving the suction crossbeams or suction spiders and If necessary, the storage templates in addition to the tools when changing the tool shortens the column width of the individual presses and thus improves the rigidity and dynamic behavior, while at the same time making the systems for changing the suction traverses and storage templates easier and clearer.
  • the press tables 2 - seen in plan view - are preferably of I-shape (FIG. 3) and are mounted on the foundation 8 by means of columns 7 (FIG. 1), the press tables 2 of the adjacent seizures 1.1 - 1.3 each being on common columns 7 stored and possibly connected in their outer area by means of clamping bolts 9. In this area, the elastic deformation of the press tables 2 goes to zero.
  • the width of the press stand 4 and its position on the feed tables 2 is selected so that there is a free space between the press stands 4 of adjacent feeds 1.1 - 1.3.
  • Only one working level is assigned to each press 1.1 - 1.3.
  • An empty level is provided between each work level, in which the sheet metal parts are placed on intermediate shelves in a position-oriented manner and their position may be changed.
  • the tools 10 are arranged on sliding tables 11 which can be moved out of the tool space of the presses 1.1-1.3 when the tool is changed.
  • two support rails 12 are provided which run through all the presses 1.1 - 1.3 of the line and are connected to one another by suction crossbeams 13 or crossbeams equipped with suction spiders and their movement via Drawing is not derived from the press drive with cam gear or cam coupling gear shown.
  • suction crossbeams 13 or crossbeams equipped with suction spiders and their movement via Drawing is not derived from the press drive with cam gear or cam coupling gear shown.
  • the transport would of course also be possible in a known manner by means of gripper rails that can be moved in two or three dimensions.
  • each empty stage there is a storage and retrofitting station 14 in which the template supports 15 for receiving the part-specific, interchangeable storage templates 16 can be adjusted in height by means of a lifting device 24, can be pivoted by a limited angle by means of a swivel drive 25, and can be displaced in the transport direction by means of an actuator 20 (Figs. 4 and 5).
  • the template carriers 15 are designed to be divided and can be lowered into a vertical position by swivel drives 17 when changing tools for space reasons.
  • Above the template carrier 15 there are two receptacles 18, 19 for the suction traverse 13 or suction spinning when changing the tool.
  • the receptacles 18, 19 are provided with lifting devices 26 and with locking means by means of which the suction cross members 13 or suction spiders are successively decoupled from the support rails 12 and placed one above the other on two levels.
  • the receptacles 18, 19 can be pivoted into a horizontal position by means of swivel drives 23.
  • swivel drives 23 In the same way, it would of course also be possible to design only one receptacle 18 with corresponding detents in such a way that the two suction cross members 13 can be accommodated one above the other.
  • suction traverses 13 that are wide in the direction of transport, it may be necessary for reasons of space. also expedient to pivot them in the receptacles 19 into a vertical position.
  • the storage and changeover stations 14 with the storage templates 16 and suction traverses 13 or suction spiders located thereon are moved through the space between the press stands 4 of the adjacent presses 1.1 - 1.3 by means of separate drives on rails 22 analogously to the Sliding tables 11 extended out of the empty step areas and replaced by the ready ones, already converted to the next sheet metal part to be machined outside the presses.
  • spacers 21 (FIG. 1) between the head pieces 3 and the upper area of the press stands 4 of adjacent presses 1.1 - 1.3 (FIG. 1), which - to compensate for the expansion of the press frames under load - are elastic in the vertical direction, but stiff in the horizontal direction are executed.
  • the spacers 21 could consist of two flanges which can be screwed onto the head pieces 3 and by means of a resilient intermediate web, e.g. B. a relatively thin sheet, are interconnected (Fig. 5).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

The invention relates to a transfer press line for processing large-area sheet-metal parts in a plurality of work stages, comprising a plurality of presses set up a short distance apart, each of which is assigned just one work stage, with idle stages between the work stages and with devices for transporting the sheet-metal parts between the individual stages. The object is, by reducing the width of the press frames - as seen in the direction of transport - to improve rigidity and dynamic behaviour and, at the same time, to simplify the systems for changing the rails for the suction devices and of the deposition templates. According to the invention, the press tables (2), which are connected together at their front sides, are designed in such a way that there is a free space between the press frames (4) of adjacent presses (1.1-1.3) and that arranged between two presses (1.1-1.3) there is in each case a deposition and resetting station (14) which can be moved out of the region of the idle stage, through the free space, transversely to the direction of transport of the sheet-metal parts. <IMAGE>

Description

Die Erfindung betrifft eine Transferpressenlinie zur Bearbeitung von großflächigen Blechteilen in mehreren Arbeitsstufen gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a transfer press line for processing large-area sheet metal parts in several work stages according to the preamble of claim 1.

Eine bekannte Pressenanlage dieser Art (DE-OS 39 05 069) besteht aus mehreren in geringem Abstand zueinander aufgestellten Pressen, deren Pressentische und Kopfstücke durch separate Pressenständer oder durch jeweils zwei benachbarten Pressen zugeordnete gemeinsame Pressenständer miteinander verbunden sind und die mittels Verbindungswellen von einem zentralen Antrieb synchron angetrieben werden. Jede Presse enthält nur eine Arbeitsstufe. Im Ständerbereich zwischen zwei Arbeitsstufen ist jeweils eine Leerstufe vorgesehen, in der die Blechteile lageorientiert abgelegt werden. Die Zwischenablagen sind beim Werkzeugwechsel in der Höhe sowie auf die Größe, Form und Schräglage der Blechteile mittels Stellmitteln vollautomatisch einstellbar. Der Transport der Blechteile in bzw. aus der Presse sowie von einer Arbeitsstufe zur nächsten erfolgt mittels Saugertraversen, die in durch die gesamte Pressenanlage reichenden Tragschienen verschiebbar gelagert und über ein Kurvengetriebe vom Pressenantrieb angetrieben werden. Beim Werkzeugwechsel werden die Saugertraversen -von den Tragschienen gelöst -in Aufnahmen der Schiebetische abgelegt und gemeinsam mit den Werkzeugen aus der Presse ausgefahren.A known press system of this type (DE-OS 39 05 069) consists of several presses set up at a short distance from one another, the press tables and head pieces of which are connected to one another by separate press stands or by two presses associated with two adjacent presses and which are connected by means of connecting shafts from a central drive are driven synchronously. Each press contains only one stage. In the stand area between two work stages, an empty stage is provided in which the sheet metal parts are stored in a position-oriented manner. When changing tools, the height of the clipboards and the size, shape and inclined position of the sheet metal parts can be adjusted fully automatically using adjusting devices. The sheet metal parts are transported into and out of the press and from one working stage to the next by means of suction traverses, which are slidably mounted in mounting rails that extend through the entire press system and are driven by the press drive via a cam mechanism. When changing tools, the suction traverses - detached from the mounting rails - are placed in the slots of the sliding tables and extended together with the tools from the press.

Bei einer anderen bekannten Lösung (DE-OS 40 01 590) sind die Zwischenablagen in den Leerstufen mit teilespezifischen Ablagestationen versehen, die beim Werkzeugwechsel neben den Saugertraversen in am Schiebetisch vorgesehenen Aufnahmen abgesteckt und gemeinsam mit dem Werkzeugsatz aus der Presse ausgefahren werden. Die dem neuen Werkzeugsatz zugeordneten Ablageschablonen und Saugertraversen gelangen in umgekehrter Reihenfolge wieder in die Presse.In another known solution (DE-OS 40 01 590), the clipboards in the empty stages are provided with part-specific storage stations which, when the tool is changed, are inserted in the receptacles provided on the sliding table in addition to the suction traverse and are moved out of the press together with the tool set. The storage templates and suction traverses assigned to the new tool set are returned to the press in reverse order.

Nachteilig wirken sich bei der erstgenannten Lösung der erhebliche Steuerungsaufwand für die automatische Einstellung der Zwischenablage auf die jeweilige Teileform und bei der letztgenannten Lösung der erforderliche hohe Aufwand für die automatischen Koppel- und Arretierungssysteme sowohl an den Zwischenablagen als auch an den Schiebetischen aus.A disadvantage of the former solution is the considerable control effort for the automatic adjustment of the clipboard to the respective part shape and in the latter solution the high effort required for the automatic coupling and locking systems both on the clipboards and on the sliding tables.

Die jeweils am Schiebetisch seitlich neben dem Werkzeugsatz arretierten Ablageschablonen und Saugertraversen erfordern einen nicht unerheblichen Raumbedarf, der zu einer größeren Pressenständerweite in Durchlaufrichtung der Blechteile führt. Damit erhöht sich insbesondere für die an den Pressenständern geführten Stößel bei optimalen Steifeforderungen und einem günstigen Führungsverhältnis der Masseeinsatz, der sich wiederum nachteilig auf die Dynamik des Antriebes auswirkt. Der begrenzte Zwischenraum zwischen Pressenständern und Schiebetischen engt die Nutzung breiter Saugerspinnen erheblich ein, wodurch eine optimale Handhabung der Blechteile eingeschränkt wird.The storage templates and suction traverses, which are locked to the side of the tool set on the sliding table, require a not inconsiderable amount of space, which leads to a larger press stand width in the direction of travel of the sheet metal parts. This increases the mass used, in particular for the rams guided on the press stands with optimum rigidity requirements and a favorable guidance ratio, which in turn has a negative effect on the dynamics of the drive. The limited space between press stands and sliding tables considerably limits the use of wide suction spiders, which limits optimal handling of the sheet metal parts.

Der Erfindung liegt das Problem zugrunde, eine Transferpressenlinie nach dem Oberbegriff des Patentanspruchs 1 so zu gestalten, daß durch eine in Teiletransportrichtung schmalere Ausführung der Schiebetische auf Grund des Wegfallens der beim Stand der Technik erforderlichen Aufbauten für die Koppelsysteme zur Aufnahme der Saugertraversen bzw. Saugerspinnen und ggf. der Ablageschablonen neben den Werkzeugen beim Werkzeugwechsel die Ständerweite der einzelnen Pressen verkürzt und damit die Steifigkeit und das dynamische Verhalten verbessert und gleichzeitig die Systeme für den Wechsel der Saugertraversen und Ablageschablonen einfacher und überschaubarer gestaltet werden.The invention is based on the problem of designing a transfer press line according to the preamble of patent claim 1 such that, due to a narrower design of the sliding tables in the parts transport direction, due to the elimination of the superstructures required for the coupling systems for receiving the suction crossbeams or suction spiders and If necessary, the storage templates in addition to the tools when changing the tool shortens the column width of the individual presses and thus improves the rigidity and dynamic behavior, while at the same time making the systems for changing the suction traverses and storage templates easier and clearer.

Erfindungsgemäß wird das durch die im kennzeichnenden Teil des Patentanspruchs 1 beschriebenen Merkmale erreicht. Die Merkmale der Ansprüche 2 - 5 betreffen zweckmäßige Ausgestaltungen der Ablage- und Umrüststation, wobei durch die Merkmale der Ansprüche 2 und 3 der erforderliche Raumbedarf zum Umrüsten der Saugerspinnen gegenüber dem Stand der Technik nahezu halbiert wird oder die Saugerspinnenbreite zur verbesserten Handhabung vergrößerbar ist.According to the invention this is achieved by the features described in the characterizing part of patent claim 1. The features of claims 2-5 relate to expedient refinements of the storage and conversion station, the features of claims 2 and 3 almost halving the space required for converting the suction spiders compared to the prior art, or the suction spider width can be increased for improved handling.

Im Anspruch 6 ist eine Ausführung zur Erhöhung der Stabilität aufgezeigt, wobei die Auffederung der Gestelle der einzelnen Pressen nicht aufeinander übertragen wird. Durch die Merkmale des Anspruchs 7 wird die Stabilität des Pressengestells und die Genauigkeit der Stößelführung verbessert.In claim 6, an embodiment for increasing the stability is shown, the springing of the frames of the individual presses not being transferred to one another. The features of claim 7 improve the stability of the press frame and the accuracy of the ram guide.

Die Erfindung wird nachstehend an einem Ausführungsbeispiel näher erläutert. Die zugehörigen Zeichnungen zeigen:

Fig. 1:
eine Transferpressenlinie in der Vorderansicht
Fig. 2:
den Schnitt A - A von Fig. 1
Fig. 3:
den Schnitt B - B von Fig. 1
Fig. 4:
die Ablage- und Umrüststation in der Vorderansicht in der Werkzeugwechselposition
Fig. 5:
die Ablage- und Umrüststation in der Seitenansicht
Die Transferpressenlinie (Fig. 1) besteht aus mehreren in Teiletransportrichtung hintereinander aufgestellten einzelnen Fressen 1.1 bis 1.3. Jede der Fressen 1.1 - 1.3 besteht gestellseitig aus einem Pressentisch 2, dem Kopfstück 3 und den Pressenständern 4, die durch vorgespannte Zuganker 5 miteinander verbunden sind. Der Stößel 6 ist in den Stößelführungen (28) der Pressenständer 4 vertikal verschiebbar gelagert und mittels vier Pleuelstangen mit dem Getriebe verbunden. Die Getriebe aller Pressen 1.1 - 1.3 der Linie stehen über Verbindungswellen mit einem gemeinsamen Pressenantrieb in Wirkverbindung.The invention is explained in more detail below using an exemplary embodiment. The associated drawings show:
Fig. 1:
a transfer press line in the front view
Fig. 2:
the section A - A of Fig. 1st
Fig. 3:
the section B - B of Fig. 1st
Fig. 4:
the storage and changeover station in the front view in the tool change position
Fig. 5:
the storage and conversion station in side view
The transfer press line (FIG. 1) consists of several individual seizures 1.1 to 1.3 set up one after the other in the parts transport direction. Each of the feeds 1.1 - 1.3 on the frame side consists of a press table 2, the head piece 3 and the press stands 4, which are connected to one another by prestressed tie rods 5. The plunger 6 is vertically displaceably mounted in the plunger guides (28) of the press stand 4 and is connected to the transmission by means of four connecting rods. The gears of all presses 1.1 - 1.3 of the line are operatively connected to a common press drive via connecting shafts.

Die Pressentische 2 sind - in der Draufsicht gesehen - vorzugsweise I-förmig ausgeführt (Fig. 3) und mittels Säulen 7 auf dem Fundament 8 gelagert (Fig. 1), wobei die Pressentische 2 der benachbarten Fressen 1.1 - 1.3 jeweils auf gemeinsamen Säulen 7 gelagert und ggf. in ihrem äußeren Bereich mittels Spannbolzen 9 miteinander verbunden sind. In diesem Bereich geht die elastische Verformung der Pressentische 2 gegen Null. Die Breite der Pressenständer 4 und deren Lage auf den Fressentischen 2 ist so gewählt, daß zwischen den Pressenständern 4 benachbarter Fressen 1.1 - 1.3 ein Freiraum besteht.The press tables 2 - seen in plan view - are preferably of I-shape (FIG. 3) and are mounted on the foundation 8 by means of columns 7 (FIG. 1), the press tables 2 of the adjacent seizures 1.1 - 1.3 each being on common columns 7 stored and possibly connected in their outer area by means of clamping bolts 9. In this area, the elastic deformation of the press tables 2 goes to zero. The width of the press stand 4 and its position on the feed tables 2 is selected so that there is a free space between the press stands 4 of adjacent feeds 1.1 - 1.3.

Jeder Presse 1.1 - 1.3 ist nur eine Arbeitsstufe zugeordnet. Zwischen jeder Arbeitsstufe ist eine Leerstufe vorgesehen, in der die Blechteile auf Zwischenablagen lageorientiert abgelegt und ggf. in ihrer Lage verändert werden.Only one working level is assigned to each press 1.1 - 1.3. An empty level is provided between each work level, in which the sheet metal parts are placed on intermediate shelves in a position-oriented manner and their position may be changed.

Die Werkzeuge 10 sind auf Schiebetischen 11 angeordnet, die beim Werkzeugwechsel aus dem Werkzeugraum der Pressen 1.1 - 1.3 ausfahrbar sind.The tools 10 are arranged on sliding tables 11 which can be moved out of the tool space of the presses 1.1-1.3 when the tool is changed.

Zum Transport der Blechteile in bzw. aus der Transferpressenlinie sowie von einer Arbeitsstufe zur nächsten sind zwei durch alle Pressen 1.1 - 1.3 der Linie durchgehende Tragschienen 12 vorgesehen, die durch Saugertraversen 13 bzw. mit Saugerspinnen bestückte Traversen miteinander verbunden sind und deren Bewegung über in der Zeichnung nicht mit dargestellte Kurvengetriebe bzw. Kurvenkoppelgetriebe vom Pressenantrieb abgeleitet ist. Bei entsprechender Steife und Geometrie der Blechteile wäre der Transport natürlich auch in bekannter Weise mittels zwei- oder dreidimensional bewegbarer Greiferschienen möglich.For the transport of the sheet metal parts in or out of the transfer press line and from one working stage to the next, two support rails 12 are provided which run through all the presses 1.1 - 1.3 of the line and are connected to one another by suction crossbeams 13 or crossbeams equipped with suction spiders and their movement via Drawing is not derived from the press drive with cam gear or cam coupling gear shown. Given the appropriate stiffness and geometry of the sheet metal parts, the transport would of course also be possible in a known manner by means of gripper rails that can be moved in two or three dimensions.

In jeder Leerstufe befindet sich eine Ablage- und Umrüststation 14 in der die Schablonenträger 15 für die Aufnahme der teilespezifischen, austauschbaren Ablageschablonen 16 mittels einer Hubeinrichtung 24 höhenverstellbar, mittels eines Schwenkantriebes 25 um einen begrenzten Winkel schwenkbar sowie mittels eines Stellantriebes 20 in Transportrichtung verschiebbar gelagert sind (Fig. 4 und 5). Die Schablonenträger 15 sind geteilt ausgeführt und beim Werkzeugwechsel aus Platzgründen mittels Schwenkantrieben 17 in eine vertikale Lage absenkbar. Oberhalb der Schablonenträger 15 befinden sich zwei Aufnahmen 18, 19 für die Saugertraversen 13 bzw. Saugerspinnen beim Werkzeugwechsel. Die Aufnahmen 18, 19 sind mit Hubeinrichtungen 26 sowie mit Arretierungsmitteln versehen, durch die die Saugertraversen 13 bzw. Saugerspinnen nacheinander von den Tragschienen 12 abgekoppelt und in zwei Etagen übereinander abgelegt werden.In each empty stage there is a storage and retrofitting station 14 in which the template supports 15 for receiving the part-specific, interchangeable storage templates 16 can be adjusted in height by means of a lifting device 24, can be pivoted by a limited angle by means of a swivel drive 25, and can be displaced in the transport direction by means of an actuator 20 (Figs. 4 and 5). The template carriers 15 are designed to be divided and can be lowered into a vertical position by swivel drives 17 when changing tools for space reasons. Above the template carrier 15 there are two receptacles 18, 19 for the suction traverse 13 or suction spinning when changing the tool. The receptacles 18, 19 are provided with lifting devices 26 and with locking means by means of which the suction cross members 13 or suction spiders are successively decoupled from the support rails 12 and placed one above the other on two levels.

Um eine gegenseitige Behinderung bei der zeitlich aufeinanderfolgenden Abkoppelung der beiden Saugertraversen 13 zu vermeiden, sind die Aufnahmen 18, 19 mittels Schwenkantrieben 23 in eine horizontale Lage schwenkbar. In gleicher Weise wäre es natürlich auch möglich, nur eine Aufnahme 18 mit entsprechenden Arretierungen derart auszuführen, daß beide Saugertraversen 13 übereinanderliegend darin aufgenommen werden können. Bei in Transportrichtung breiten Saugertraversen 13 ist es aus Platzgründen u.U. auch zweckmäßig, diese in den Aufnahmen 19 in eine vertikale Position zu schwenken. Beim Werkzeugwechsel werden -zeitgleich mit den Schiebetischen 11- die Ablage- und Umrüststationen 14 mit den darauf befindlichen Ablageschablonen 16 und Saugertraversen 13 bzw. Saugerspinnen durch den Freiraum zwischen den Pressenständern 4 der jeweils benachbarten Pressen 1.1 - 1.3 mittels separater Antriebe auf Fahrschienen 22 analog den Schiebetischen 11 aus den Leerstufenbereichen ausgefahren und durch die bereitstehenden, bereits außerhalb der Pressen auf das nächste zu bearbeitende Blechteil umgerüsteten ersetzt.In order to avoid mutual hindrance when the two suction traverses 13 are uncoupled in time, the receptacles 18, 19 can be pivoted into a horizontal position by means of swivel drives 23. In the same way, it would of course also be possible to design only one receptacle 18 with corresponding detents in such a way that the two suction cross members 13 can be accommodated one above the other. With suction traverses 13 that are wide in the direction of transport, it may be necessary for reasons of space. also expedient to pivot them in the receptacles 19 into a vertical position. When changing tools, at the same time as the sliding tables 11, the storage and changeover stations 14 with the storage templates 16 and suction traverses 13 or suction spiders located thereon are moved through the space between the press stands 4 of the adjacent presses 1.1 - 1.3 by means of separate drives on rails 22 analogously to the Sliding tables 11 extended out of the empty step areas and replaced by the ready ones, already converted to the next sheet metal part to be machined outside the presses.

Zur Verminderung der Schwingungen in horizontaler Richtung ist es u.U. vorteilhaft, jeweils zwischen den Kopfstücken 3 bzw. dem oberen Bereich der Pressenständer 4 benachbarter Pressen 1.1 - 1.3 Distanzstücke 21 anzubringen (Fig. 1), die - zum Ausgleich der Dehnung der Pressengestelle unter Belastung - in vertikaler Richtung elastisch, aber in horizontaler Richtung steif ausgeführt sind. In einfachster Form könnten die Distanzstücke 21 aus zwei Flanschen bestehen, die an den Kopfstücken 3 anschraubbar und mittels eines federnden Zwischensteges, z. B. eines relativ dünnen Bleches, miteinander verbunden sind (Fig. 5).To reduce vibrations in the horizontal direction, it may be It is advantageous to attach spacers 21 (FIG. 1) between the head pieces 3 and the upper area of the press stands 4 of adjacent presses 1.1 - 1.3 (FIG. 1), which - to compensate for the expansion of the press frames under load - are elastic in the vertical direction, but stiff in the horizontal direction are executed. In the simplest form, the spacers 21 could consist of two flanges which can be screwed onto the head pieces 3 and by means of a resilient intermediate web, e.g. B. a relatively thin sheet, are interconnected (Fig. 5).

Claims (7)

Transferpressenlinie zur Bearbeitung von großflächigen Blechteilen in mehreren Arbeitsstufen, bestehend aus mehreren im geringen Abstand zueinander aufgestellten einzelnen Pressen, denen jeweils nur eine Arbeitsstufe zugeordnet ist und die zumindest im Bereich der Pressentische miteinander sowie mittels Verbindungswellen mit einem gemeinsamen Antrieb verbunden sind, mit Leerstufen zwischen den einzelnen Arbeitsstufen sowie Zwischenablagen zur Aufnahme der Blechteile in den Leerstufen und mit Einrichtungen zum Zuführen und Entnehmen der Blechteile sowie zur schrittweisen Weitergabe derselben von einer Stufe zur nächsten,
dadurch gekennzeichnet,
daß die stirnseitig miteinander verbundenen Pressentische (2) derart ausgebildet sind, daß zwischen den Pressenständern (4) benachbarter Pressen (1.1 - 1.3) ein Freiraum besteht und
zwischen zwei Pressen (1.1 - 1.3) jeweils eine quer zur Teiletransportrichtung durch den Freiraum aus dem Leerstufenbereich ausfahrbare Ablage- und Umrüststation (14) angeordnet ist, in der die Schablonenträger (15) für die austauschbaren Ablageschablonen (16) der Zwischenablage mittels Stellantrieben schwenkbar, höhenverstellbar und ggf. horizontal verschiebbar gelagert und/oder die Aufnahmen (18,19) für die auswechselbaren Teile der Transfereinrichtung - Saugertraversen (13) bzw. Saugerspinnen oder Greiferleisten - angeordnet sind.Transfer press line for processing large sheet metal parts in several work stages, consisting of several individual presses set up at a short distance from each other, each of which is assigned only one work stage and which are connected to each other at least in the area of the press tables and by means of connecting shafts with a common drive, with empty stages between the individual work stages as well as clipboards for holding the sheet metal parts in the empty stages and with devices for feeding and removing the sheet metal parts and for gradual transfer of them from one stage to the next,
characterized,
that the press tables (2) connected to one another on the end face are designed such that there is a free space between the press stands (4) of adjacent presses (1.1-1.3) and
Between two presses (1.1 - 1.3) a storage and retrofitting station (14), which can be extended transversely to the part transport direction through the free space, is arranged, in which the template holder (15) for the interchangeable storage templates (16) of the clipboard can be pivoted by means of actuators, Height-adjustable and, if necessary, horizontally displaceable and / or the receptacles (18, 19) for the interchangeable parts of the transfer device - suction traverses (13) or suction spiders or gripper bars - are arranged. Transferpressenlinie nach Anspruch 1,
dadurch gekennzeichnet,
daß die Aufnahmen (18, 19) für die Saugertraversen (13) bzw. Saugerspinnen oder Greiferleisten schwenkbar und/oder mittels einer Hubeinrichtung (26) höhenverstellbar auf der Ablage- und Umrüststation (14) angeordnet sind und die Saugertraversen (13) oder Greiferleisten beim Werkzeugwechsel jeweils in horizontaler Lage in zwei Etagen übereinander in den Aufnahmen (18, 19) abgelegt sind.Transfer press line according to claim 1,
characterized,
that the receptacles (18, 19) for the suction cross members (13) or suction spiders or gripper bars are pivotable and / or height-adjustable by means of a lifting device (26) on the storage and conversion station (14) and the suction cross members (13) or gripper bars at Tool changes are stored in a horizontal position on two levels one above the other in the receptacles (18, 19). Transferpressenlinie nach Anspruch 1,
dadurch gekennzeichnet,
daß die Aufnahmen (18, 19) für die Saugertraversen (13) bzw. Saugerspinnen oder Greiferleisten schwenkbar und/oder mittels einer Hubeinrichtung (26) höhenverstellbar auf der Ablage- und Umrüststation (14) angeordnet sind und die Saugertraversen (13) oder Greiferleisten beim Werkzeugwechsel jeweils um 90 Grad geschwenkt in vertikaler Lage nebeneinander abgelegt sind.Transfer press line according to claim 1,
characterized,
that the receptacles (18, 19) for the suction cross members (13) or suction spiders or gripper bars are pivotable and / or height-adjustable by means of a lifting device (26) on the storage and conversion station (14) and the suction cross members (13) or gripper bars at Tool changes swiveled by 90 degrees are stored next to each other in a vertical position. Transferpressenlinie nach Anspruch 1,
dadurch gekennzeichnet,
daß die Schablonenträger (15) zweiteilig ausgeführt und beim Werkzeugwechsel beide Teile mittels Schwenkantrieben (17) in eine vertikale Lage absenkbar sind.Transfer press line according to claim 1,
characterized,
that the template carrier (15) is made in two parts and when changing the tool both parts can be lowered into a vertical position by means of swivel drives (17). Transferpressenlinie nach Anspruch 1,
dadurch gekennzeichnet,
daß für jede Leerstufe eine zweite Ablage- und Umrüststation (14) in Warteposition außerhalb der Pressenlinie vorgesehen ist.Transfer press line according to claim 1,
characterized,
that a second storage and conversion station (14) is provided in the waiting position outside the press line for each empty stage. Transferpressenlinie nach Anspruch 1,
dadurch gekennzeichnet,
daß die Pressengestelle benachbarter Pressen (1.1 - 1.3) in ihrem oberen Bereich -vorzugsweise an den Kopfstücken (3)-jeweils mittels in vertikaler Richtung elastischer, aber in horizontaler Richtung steifer Distanzstücke (21) miteinander verbunden sind.Transfer press line according to claim 1,
characterized,
that the press frames of adjacent presses (1.1 - 1.3) are connected to one another in their upper region - preferably on the head pieces (3) - by means of spacers (21) which are elastic in the vertical direction but stiff in the horizontal direction. Transferpressenlinie nach Anspruch 1,
dadurch gekennzeichnet,
daß im Bereich der Stößelführung (28) zwischen den Pressenständern (4) jeder Presse (1.1 - 1.3) in Transportrichtung gesehen bzw. den beiden Säulen eines u-förmig ausgeführten Pressenständers (4) jeweils eine verspannbare Traverse (27) verankert ist, wobei ggf. die Spannleisten zur Einstellung der Stößelführung (28) mit Aussparungen versehen sind und die Enden der Traverse (27) die Aussparungen der Spannleisten durchgreifen.Transfer press line according to claim 1,
characterized,
that in the area of the ram guide (28) between the press stands (4) of each press (1.1 - 1.3) seen in the direction of transport or the two pillars of a U-shaped press stand (4) each has a bracing cross member (27) anchored, if necessary the clamping bars for setting the tappet guide (28) are provided with cutouts and the ends of the crossmember (27) pass through the cutouts of the clamping bars.
EP92111316A 1991-07-19 1992-07-03 Transfer press line Expired - Lifetime EP0523478B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4124083A DE4124083A1 (en) 1991-07-19 1991-07-19 TRANSFER PRESS LINE
DE4124083 1991-07-19

Publications (2)

Publication Number Publication Date
EP0523478A1 true EP0523478A1 (en) 1993-01-20
EP0523478B1 EP0523478B1 (en) 1996-02-28

Family

ID=6436616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92111316A Expired - Lifetime EP0523478B1 (en) 1991-07-19 1992-07-03 Transfer press line

Country Status (4)

Country Link
EP (1) EP0523478B1 (en)
JP (1) JP3305360B2 (en)
DE (2) DE4124083A1 (en)
ES (1) ES2084221T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0543198B1 (en) * 1991-11-08 1995-04-12 Umformtechnik ERFURT GmbH Supporting-and transforming-station between the presses in a transfer press line
EP0879659A2 (en) * 1997-05-23 1998-11-25 SCHULER PRESSEN GmbH &amp; Co. Press installations with automatic tool change and method of tool change
WO2023104242A1 (en) * 2021-12-09 2023-06-15 Aida Europe Gmbh Transfer system for press lines

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4319339A1 (en) * 1993-06-11 1994-12-15 Schuler Gmbh L Multi-column press or similar press system for forming sheet metal parts
DE4319338A1 (en) * 1993-06-11 1994-12-15 Schuler Gmbh L Multi-column press
DE4320431B4 (en) * 1993-06-21 2004-08-19 Müller Weingarten AG Transfer Press complex
DE19927824A1 (en) * 1999-06-18 2000-12-21 Schuler Pressen Gmbh & Co Press system with automatic tool change

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3905069A1 (en) * 1989-02-18 1990-08-23 Schuler Gmbh L PRESS PLANT WITH SEVERAL PRESSES FOR MACHINING SHEET PARTS
EP0418638A2 (en) * 1989-09-18 1991-03-27 SCHULER PRESSEN GmbH &amp; Co. Intermediate storage between operation steps of a press
EP0423749A1 (en) * 1989-10-18 1991-04-24 Maschinenfabrik Müller-Weingarten AG Stacker for work pieces in progressive presses

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3905069A1 (en) * 1989-02-18 1990-08-23 Schuler Gmbh L PRESS PLANT WITH SEVERAL PRESSES FOR MACHINING SHEET PARTS
EP0418638A2 (en) * 1989-09-18 1991-03-27 SCHULER PRESSEN GmbH &amp; Co. Intermediate storage between operation steps of a press
EP0423749A1 (en) * 1989-10-18 1991-04-24 Maschinenfabrik Müller-Weingarten AG Stacker for work pieces in progressive presses

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0543198B1 (en) * 1991-11-08 1995-04-12 Umformtechnik ERFURT GmbH Supporting-and transforming-station between the presses in a transfer press line
EP0879659A2 (en) * 1997-05-23 1998-11-25 SCHULER PRESSEN GmbH &amp; Co. Press installations with automatic tool change and method of tool change
EP0879659A3 (en) * 1997-05-23 2002-01-16 Schuler Pressen GmbH & Co. KG Press installations with automatic tool change and method of tool change
WO2023104242A1 (en) * 2021-12-09 2023-06-15 Aida Europe Gmbh Transfer system for press lines

Also Published As

Publication number Publication date
JP3305360B2 (en) 2002-07-22
EP0523478B1 (en) 1996-02-28
DE59205447D1 (en) 1996-04-04
DE4124083A1 (en) 1993-01-21
ES2084221T3 (en) 1996-05-01
JPH0623450A (en) 1994-02-01

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