EP1072335B1 - Transfer drive for a press - Google Patents

Transfer drive for a press Download PDF

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Publication number
EP1072335B1
EP1072335B1 EP00113329A EP00113329A EP1072335B1 EP 1072335 B1 EP1072335 B1 EP 1072335B1 EP 00113329 A EP00113329 A EP 00113329A EP 00113329 A EP00113329 A EP 00113329A EP 1072335 B1 EP1072335 B1 EP 1072335B1
Authority
EP
European Patent Office
Prior art keywords
movement
lever
lifting
levers
transfer drive
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.)
Expired - Lifetime
Application number
EP00113329A
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German (de)
French (fr)
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EP1072335A2 (en
EP1072335A3 (en
Inventor
Erich Harsch
Rainer Reichenbach
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.)
Mueller Weingarten AG
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Mueller Weingarten AG
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Filing date
Publication date
Priority claimed from DE10012022A external-priority patent/DE10012022A1/en
Application filed by Mueller Weingarten AG filed Critical Mueller Weingarten AG
Publication of EP1072335A2 publication Critical patent/EP1072335A2/en
Publication of EP1072335A3 publication Critical patent/EP1072335A3/en
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Publication of EP1072335B1 publication Critical patent/EP1072335B1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00Details of machines for forging, pressing, or hammering
    • B21J13/08Accessories for handling work or tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, 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
    • B21D43/02Advancing work in relation to the stroke of the die or tool
    • B21D43/04Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/05Advancing 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
    • B21D43/055Devices comprising a pair of longitudinally and laterally movable parallel transfer bars
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K27/00Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof

Definitions

  • the invention relates to a transfer drive for a press according to the preamble of claim 1.
  • a transport device for transporting parts in A transfer press consists of two in the transport direction of the parts running gripper rails, which are next to the longitudinal and Carry out an additional transverse movement, where gripper elements on the gripper rails themselves are provided. So that the transport elements when Machining process of the press within the tool room do not disturb, the gripper rails must three-dimensional transfer system from the tool room be moved out laterally.
  • DE 38 42 182 C1 is a gripper rail drive for Step presses become known, in which the Carry out a three-dimensional movement of the gripper rails.
  • the Carry out a three-dimensional movement of the gripper rails.
  • an additional transverse movement as a clamping or closing movement provided for gripping or clamping the workpieces.
  • each gripper rail is articulated via a push rod a slidable carriage mounted to a Adapt to the respective workpiece size.
  • the respective closing movement of the gripper rail then takes place as lateral pivoting movement on one in the transverse direction fixed sledge using appropriate ball joints.
  • DE 39 13 663 A1 also describes a transfer device for a transfer press where the drive of carriages in the parts transport direction by a Cam follower arrangement.
  • the lifting movement of the The running rail is driven by a Cam follower lever, its movement over a longitudinal bar and a deflection device is transmitted to the running rail.
  • a disadvantage of this prior art is the fact that the three-dimensional movements through complicated and dirt-sensitive guides for the individual Movement organs need to be supported and complicated Make protective covers necessary.
  • the guides in the area of Transport level or even below the transport level are arranged.
  • the invention has for its object a To create transfer drive that is largely based on dirt-sensitive guides for the individual Movement elements dispensed with.
  • the invention is based on the finding that an under rough production conditions used transfer drive if possible without dirt-sensitive guides for the individual Movement organs must get by. With this knowledge strikes the invention before a transfer drive made of moving Articulated rods in a hanging arrangement, whereby a kind "Floating storage” is achieved without additional guides.
  • a transfer drive made of moving Articulated rods in a hanging arrangement whereby a kind "Floating storage” is achieved without additional guides.
  • a kind of "multi-point suspension” is created, that is, the gripper rails are in all three axes of movement Defined hung on joints, so that on usual guides due to their sensitivity to dirt can be dispensed with. It is advantageous that all articulated rods and Push rods arranged above the transport plane of the parts are so that the underlying transport space without any contaminated guides equipped for the transfer drive can be.
  • the transfer drive is therefore used for all movements the gripper rails in all three directions of movement Articulated rods or push rods and levers equipped there these are connected to each other via swivel joints, which are very to seal against dirt much better than usual Linear guides.
  • swivel joints which are very to seal against dirt much better than usual Linear guides.
  • Another significant advantage of this arrangement is that the good accessibility of the work area, e.g. B. for that Spray system for engraving the shape or when changing the die.
  • Embodiment is a transfer for a Forging machine 1 as seen in side view in Fig. 3 and in left end view from the direction of arrow 2 in FIG. 1 and from the direction of arrow 3 in Fig. 2 is shown.
  • the two in the transport direction 4 through the forging machine or forging press 1 running gripper rails 5, 6 are each four hinge rods 7 to 14 gimbaled. Doing so the gripper rail 5 in the front machine area 15 of the two link rods 7, 8 and in the rear machine area 16 carried by the link rods 9, 10. This is from Fig. 3 in Side view recognizable. The outside of the in Fig. 3 Further gripper rail 6 lying in the drawing plane is in the front Area 15 through the articulated rods 11, 12 and in the rear Area 16 carried by the link rods 13, 14.
  • a lever shaft 18 in the rear machine area 16 there is a lever shaft 19, each with a lever 20, 21 and one Push rod 22 are operatively connected to each other.
  • Levers 23 to 26 are attached to the lever shafts 18, 19 which the individual joint rods 7 to 14 gimbal are hung.
  • the lever shaft 18 is rotatably mounted in the cam box 17 and from a pair of curves 27 via a roller lever 28 (Cam follower lever) driven.
  • the one in the back Machine area 16 arranged lever shaft 19 is in Bearing blocks 29, 30 rotatably mounted.
  • the drive of the lever shaft 19 takes place through the lever shaft 18 via the lever arrangement 20, 21 with push rod 22. This kinematics means that Lifting movement of the gripper rails 5, 6 performed.
  • the closing movement of the gripper rails 5, 6 takes place via the additional joint rods 31 to 34, the joint rods 31, 32 laterally gimbaled on the gripper rail 5 in the front 15 and rear machine area 16 are articulated.
  • the Articulated rods 33, 34 are equally gimbaled to the Gripper rail 6 in the front and rear machine area 15, 16 hinged on the side. For this, reference is made to FIGS. 1, 2.
  • the joint rods 31 to 34 are each on a first Leg 40 of an angle lever 35 to 38 articulated, each is held in a warehouse 39.
  • One more each Leg 40 'of the respective angle lever 35 to 38 is with each connected to an articulated rod 41 to 44, which in turn via levers 45 to 48, each with a lever shaft 49, 50 are connected.
  • the drive of the lever shaft 49 in the front Machine area 15 again takes place via a roller lever 51 by a pair of curves 52 in the curve box 17 in the front Machine area 15.
  • This rotary movement of the lever shaft 49 in front machine area 15 is in turn via a lever 53 a push rod 54 and via the lever 55 to the lever shaft 50 transmitted in the rear machine area 16.
  • a camshaft 63 is driven by the press itself driven and serves to drive the feed mechanism, the Clamping and closing mechanism and the lifting / Lowering mechanism.
  • FIG. 4 shows a basic position with a lowered transfer in an open clamping and Closing device.
  • Fig. 5 shows the position for the Part removal with lowered transfer in closed Position.
  • Fig. 6 shows the transfer in raised transport position with closed closing or Clamping mechanism.
  • the three-axis transfer is usually the three Movements, namely feed, lifting and closing, of one each Cam gear generated. This is also the first, before described embodiment.
  • a cost saving can be achieved in that the lifting and Closing movement carried out by a common cam mechanism becomes, that is, a movement becomes a vertical and creates a transverse movement. As shown in the figures 4 to 6 this is done by taking the following measures in there shown transfer drive 100 reached.
  • a rocker 101 which can be pivoted about a pivot point 102 is stored in two vertically displaceable Carriage 103, 104 two angle levers 105, 106 and one each Linkage lever 107, 108 rotatably mounted.
  • the gripper rails 109, 110 gimbaled 111 with universal joints At the angle and Linkage levers 105 to 108 are the gripper rails 109, 110 gimbaled 111 with universal joints.
  • the angle levers 105, 106 are each gimbal-mounted Push rod 112, 113 suspended in a lever 114, 115, the via a lever shaft 116 and roller lever 117 from the cam mechanism 118 is driven.
  • the closing movement for the gripper rails 109, 110 is over a stop 119 and the stroke movement via a stop 120 capped.
  • the cam mechanism takes one between lifting and closing Locked position in order to hit the stops hard avoid.
  • the rest of the drive mechanism is the same as for Embodiment according to FIGS. 1-3.
  • the lifting drive 122 moves the lifting shaft 123 on the lever 23, 24 are attached.
  • the execution of the lifting movement corresponds to that process already described, but is regulated by Stroke drive 122 the time, the stroke size and the Freely selectable lifting speed.
  • Closing shaft 125 exaggerates Levers 45, 47 the kinematic chain for the closing stroke of the Gripper rails 5, 6 in the form already described.
  • the feed drive 126 generates levers via feed shaft 127 58, 59 and articulated rods 56, 57 the horizontal part of the Transport step of the gripper rails 5, 6.
  • Drive 128 drives spindle 129 in connection with the nuts 130 attached to the mounting plates 131, 132 stands.
  • Construction plate 131, 132 are horizontal in guides 133 slidably mounted. Since the drive and Guide elements of the lifting and closing movement of the Gripper rails 5, 6 are located on the mounting plate 131, 132, can easily by a horizontal movement Width adjustment done.
  • the lifting and Closing shaft 123, 125 omitted and for each gripper rail 5, 6 a separate lifting drive 122 and closing drive 124 proposed.
  • This will increase the flexibility of the Transfer system further increased and enables, for example, across an inclined position of the gripper rails for the transport direction 5, 6 to each other or based on the closing drive asymmetrical closing movement.
  • push rods 22, 54 waived, and will also become their own at the end of the transfer
  • Lift actuators 122 and closing actuators 124 are provided as well an inclination of the gripper rails in the transport direction possible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Specific Conveyance Elements (AREA)
  • Forging (AREA)
  • Transmission Devices (AREA)

Description

Die Erfindung betrifft einen Transferantrieb für eine Presse nach dem Oberbegriff des Anspruchs 1.The invention relates to a transfer drive for a press according to the preamble of claim 1.

Stand der Technik:State of the art:

Eine Transporteinrichtung zum Transportieren von Teilen in einer Transferpresse besteht aus zwei in Transportrichtung der Teile verlaufenden Greiferschienen, die neben der Längsund Hubbewegung eine zusätzliche Querbewegung durchführen, wobei Greiferelemente an den Greiferschienen selbst vorgesehen sind. Damit die Transportelemente beim Bearbeitungsvorgang der Presse innerhalb des Werkzeugraumes nicht stören, müssen die Greiferschienen beim dreidimensionalen Transfersystem aus dem Werkzeugraum seitlich wieder herausgefahren werden.A transport device for transporting parts in A transfer press consists of two in the transport direction of the parts running gripper rails, which are next to the longitudinal and Carry out an additional transverse movement, where gripper elements on the gripper rails themselves are provided. So that the transport elements when Machining process of the press within the tool room do not disturb, the gripper rails must three-dimensional transfer system from the tool room be moved out laterally.

Aus der DE 38 42 182 C1 ist ein Greiferschienenantrieb für Stufenpressen bekannt geworden, bei welchem die Greiferschienen eine dreidimensionale Fahrbewegung ausführen. Insbesondere ist neben der üblichen Längsbewegung und Hubbewegung der beiden parallel verlaufenden Greiferschienen eine zusätzliche Querbewegung als Spann- bzw. Schließbewegung zum Greifen bzw. Spannen der Werkstücke vorgesehen. Hierfür ist jede Greiferschiene über eine Schubstange gelenkig an einem quer verschiebbaren Schlitten gelagert, um eine Anpassung an die jeweilige Werkstückgröße vorzunehmen. Die jeweilige Schließbewegung der Greiferschiene erfolgt dann als seitliche Schwenkbewegung an einem in Querrichtung feststehenden Schlitten mittels entsprechender Kugelgelenke. Zur Durchführung der Vorrück-, Spann- und Hubbewegung der Tragschienen sind übliche, von Kurvenfolgerhebel abgefahrene Kurvenscheiben vorgesehen, wobei der Antrieb des Getriebes vom Pressenkopf aus erfolgt. Eine prinzipielle Darstellung eines solchen Antriebs eines Greiferschienenpaares ist auch in der EP 0 210 745 A2 (Fig. 4) wiedergegeben.DE 38 42 182 C1 is a gripper rail drive for Step presses become known, in which the Carry out a three-dimensional movement of the gripper rails. In particular, in addition to the usual longitudinal movement and Stroke movement of the two parallel gripper rails an additional transverse movement as a clamping or closing movement provided for gripping or clamping the workpieces. Therefor each gripper rail is articulated via a push rod a slidable carriage mounted to a Adapt to the respective workpiece size. The The respective closing movement of the gripper rail then takes place as lateral pivoting movement on one in the transverse direction fixed sledge using appropriate ball joints. To carry out the advancing, tensioning and lifting movement of the Carrier rails are standard ones that are worn by cam followers Cam discs are provided, the drive of the transmission done from the press head. A basic presentation such a drive of a pair of gripper rails is also reproduced in EP 0 210 745 A2 (Fig. 4).

Aus der DE 39 13 663 A1 ist weiterhin eine Umsetzeinrichtung für eine Transferpresse bekannt geworden, bei der der Antrieb von Laufwagen in Teile-Transportrichtung durch eine Kurvenfolgerhebelanordnung erfolgt. Die Hubbewegung der Laufschiene erfolgt über den Antrieb eines Kurvenfolgerhebels, dessen Bewegung über eine Längsstange und eine Umlenkeinrichtung zur Laufschiene übertragen wird.DE 39 13 663 A1 also describes a transfer device for a transfer press where the drive of carriages in the parts transport direction by a Cam follower arrangement. The lifting movement of the The running rail is driven by a Cam follower lever, its movement over a longitudinal bar and a deflection device is transmitted to the running rail.

Aus dem gattungsbildenden Dokument US-A-5,488,852 ist eine Transferantrieb für eine Presse bekannt geworden, bei welcher Gelenkstangenantrieb zur Durchführung einer Schließbewegung sowie einer Längsbewegung der Trag- oder Greiferschienen vorgesehen ist. Die Hubbewegung des Systems wird hier ebenfalls mittels schmutzempfindlichen Längsführungen durchgeführt.One is from the generic document US-A-5,488,852 Transfer drive for a press, in which Articulated rod drive for performing a closing movement and a longitudinal movement of the support or gripper rails is provided. The lifting movement of the system is here also using dirt-sensitive longitudinal guides carried out.

Nachteilig an diesem Stand der Technik ist die Tatsache, dass die dreidimensionalen Bewegungen durch komplizierte und schmutzempfindliche Führungen für die einzelnen Bewegungsorgane unterstützt werden müssen und komplizierte Schutzabdeckungen erforderlich machen. Bei rauhen Betriebsverhältnissen mit einem hohen Schmutzanfall, wie dies beispielsweise bei Schmiedepressen der Fall ist, werden die Führungen für die einzelnen Bewegungen stark strapaziert und Funktionsstörungen sind unvermeidlich durch z. B. Riefen oder dem sogenannten "Fressen" der Führungsflächen. Insbesondere ist es von Nachteil, wenn die Führungen im Bereich der Transportebene oder sogar unterhalb der Transportebene angeordnet sind.A disadvantage of this prior art is the fact that the three-dimensional movements through complicated and dirt-sensitive guides for the individual Movement organs need to be supported and complicated Make protective covers necessary. When rough Operating conditions with a high level of dirt, like this is the case with forging presses, for example Guides for the individual movements are heavily used and Malfunctions are inevitable due to e.g. B. grooving or the so-called "eating" of the guide surfaces. In particular it is a disadvantage if the guides in the area of Transport level or even below the transport level are arranged.

Aufgabe und Vorteile der Erfindung:Object and advantages of the invention:

Der Erfindung liegt die Aufgabe zugrunde, einen Transferantrieb zu schaffen, der weitestgehend auf schmutzempfindliche Führungen für die einzelnen Bewegungselemente verzichtet. The invention has for its object a To create transfer drive that is largely based on dirt-sensitive guides for the individual Movement elements dispensed with.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This object is solved by the features of claim 1.

In den Unteransprüchen sind vorteilhafte und zweckmäßige Weiterbildungen des im Patentanspruch 1 beanspruchten Transferantriebs angegeben.In the subclaims are advantageous and expedient Developments of the one claimed in claim 1 Transfer drive specified.

Der Erfindung liegt die Erkenntnis zugrunde, daß ein unter rauhen Produktionsbedingungen eingesetzter Transferantrieb möglichst ohne schmutzempfindliche Führungen für die einzelnen Bewegungsorgane auskommen muß. Mit dieser Erkenntnis schlägt die Erfindung einen Transferantrieb vor, der aus beweglichen Gelenkstangen in hängender Anordnung besteht, wodurch eine Art "schwimmende Lagerung" ohne zusätzliche Führungen erzielt wird. Insbesondere durch Verwendung eines dreidimensionalen Antriebs wird eine Art "Mehr-Punkt-Aufhängung" geschaffen, das heißt, die Greiferschienen sind in allen drei Bewegungsachsen definiert an Gelenken aufgehängt, so daß auf übliche Führungen aufgrund deren Schmutzempfindlichkeit verzichtet werden kann. Dabei ist es vorteilhaft, daß sämtliche Gelenkstangen und Schubstangen oberhalb der Transportebene der Teile angeordnet sind, so daß der darunter liegende Transportraum ohne jegliche verschmutzbare Führungen für den Transferantrieb ausgestattet sein kann. Der Transferantrieb wird demnach für alle Bewegungen der Greiferschienen in allen drei Bewegungsrichtungen mit Gelenkstangen bzw. Schubstangen und Hebeln ausgestattet, da diese über Drehgelenke miteinander verbunden sind, die sehr viel besser gegen Schmutz abzudichten sind, als übliche Linearführungen. Insbesondere für den Einsatz bei einem Schmiedebetrieb ist die Anordnung des Transfers oberhalb der Transportebene vorteilhaft, das heißt, der nach unten anfallende Schmutz kann den Transferantrieb nicht behindern.The invention is based on the finding that an under rough production conditions used transfer drive if possible without dirt-sensitive guides for the individual Movement organs must get by. With this knowledge strikes the invention before a transfer drive made of moving Articulated rods in a hanging arrangement, whereby a kind "Floating storage" is achieved without additional guides. In particular by using a three-dimensional drive a kind of "multi-point suspension" is created, that is, the gripper rails are in all three axes of movement Defined hung on joints, so that on usual guides due to their sensitivity to dirt can be dispensed with. It is advantageous that all articulated rods and Push rods arranged above the transport plane of the parts are so that the underlying transport space without any contaminated guides equipped for the transfer drive can be. The transfer drive is therefore used for all movements the gripper rails in all three directions of movement Articulated rods or push rods and levers equipped there these are connected to each other via swivel joints, which are very to seal against dirt much better than usual Linear guides. Especially for use with a Forging operation is the arrangement of the transfer above the Transport level advantageous, that is, the bottom Dirt can not hinder the transfer drive.

Ein weiterer wesentlicher Vorteil dieser Anordnung besteht in der guten Zugänglichkeit des Arbeitsraumes, z. B. für das Sprühsystem der Formgravur oder bei einem Gesenkwechsel.Another significant advantage of this arrangement is that the good accessibility of the work area, e.g. B. for that Spray system for engraving the shape or when changing the die.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen im Zusammenhang mit der Figurenbeschreibung. Es zeigen

Fig. 1 bis 3
ein erstes Ausführungsbeispiel eines Transfers für eine Schmiedemaschine mit einem Transferantrieb für eine Greiferschienenanordnung, wobei
Fig. 1
eine Stirnansicht auf die Schmiedemaschine mit Transferantrieb im Pressen-Eingangsbereich,
Fig. 2
eine Stirnansicht des Transferantriebs im Endbereich der Presse zeigt und
Fig. 3
eine Seitenansicht auf die Presse mit einer Seitendarstellungen der Figuren 1 und 2 wiedergibt,
Fig. 4 bis 6
zeigt eine weiteres Ausführungsbeispiel für einen Transfer einer Schmiedemaschine in einer Variante mit einem gemeinsamen Hebe-und Schließantrieb mit gleicher Anordnung wie zu Fig. 1 bis 3 angegeben.
Fig. 7 bis 8
zeigt ein Ausführungsbeispiel eines Transfers mit separaten Antrieben für die Bewegungsachsen, sog. Elektronischer Transfer
Figur 9 und 10
zeigt ein Ausführungsbeispiel eines Transfers mit separaten Antrieben mit der Zusatzfunktion "Weiteneinstellung".
Further details and advantages of the invention result from the following description of exemplary embodiments in connection with the description of the figures. Show it
1 to 3
a first embodiment of a transfer for a forging machine with a transfer drive for a gripper rail arrangement, wherein
Fig. 1
a front view of the forging machine with transfer drive in the press entrance area,
Fig. 2
shows an end view of the transfer drive in the end region of the press and
Fig. 3
shows a side view of the press with a side view of Figures 1 and 2,
4 to 6
shows a further embodiment for a transfer of a forging machine in a variant with a common lifting and closing drive with the same arrangement as given for FIGS. 1 to 3.
7 to 8
shows an embodiment of a transfer with separate drives for the axes of motion, so-called electronic transfer
Figures 9 and 10
shows an embodiment of a transfer with separate drives with the additional function "width adjustment".

Ausführungsbeispiel mit separaten Antrieben für die Bewegungsachsen:Embodiment with separate drives for the Axes of motion:

Bei dem in den Figuren 1 bis 3 dargestellten ersten Ausführungsbeispiel handelt es sich um einen Transfer für eine Schmiedemaschine 1 wie sie in Seitenansicht in Fig. 3 sowie in linker Stirnansicht aus Blickrichtung des Pfeils 2 in Fig. 1 und aus Blickrichtung des Pfeils 3 in Fig. 2 dargestellt ist.In the first shown in Figures 1 to 3 Embodiment is a transfer for a Forging machine 1 as seen in side view in Fig. 3 and in left end view from the direction of arrow 2 in FIG. 1 and from the direction of arrow 3 in Fig. 2 is shown.

Die beiden in Transportrichtung 4 durch die Schmiedemaschine oder Schmiedepresse 1 laufenden Greiferschienen 5, 6 sind an je vier Gelenkstangen 7 bis 14 kardanisch aufgehängt. Dabei wird die Greiferschiene 5 im vorderen Maschinenbereich 15 von den beiden Gelenkstangen 7, 8 und im hinteren Maschinenbereich 16 von den Gelenkstangen 9, 10 getragen. Dies ist aus Fig. 3 in Seitenansicht erkennbar. Die in Fig. 3 außerhalb der Zeichenebene liegende weitere Greiferschiene 6 wird im vorderen Bereich 15 durch die Gelenkstangen 11, 12 und im hinteren Bereich 16 durch die Gelenkstangen 13, 14 getragen.The two in the transport direction 4 through the forging machine or forging press 1 running gripper rails 5, 6 are each four hinge rods 7 to 14 gimbaled. Doing so the gripper rail 5 in the front machine area 15 of the two link rods 7, 8 and in the rear machine area 16 carried by the link rods 9, 10. This is from Fig. 3 in Side view recognizable. The outside of the in Fig. 3 Further gripper rail 6 lying in the drawing plane is in the front Area 15 through the articulated rods 11, 12 and in the rear Area 16 carried by the link rods 13, 14.

In einem Kurvenkasten 17 im vorderen Maschinenbereich 15 befindet sich eine Hebelwelle 18, im hinteren Maschinenbereich 16 eine Hebelwelle 19, die über je einen Hebel 20, 21 und eine Schubstange 22 miteinander in Wirkverbindung stehen.In a curve box 17 in the front machine area 15 there is a lever shaft 18 in the rear machine area 16 a lever shaft 19, each with a lever 20, 21 and one Push rod 22 are operatively connected to each other.

Auf den Hebelwellen 18, 19 sind Hebel 23 bis 26 befestigt, an denen die einzelnen Gelenkstangen 7 bis 14 kardanisch aufgehängt sind.Levers 23 to 26 are attached to the lever shafts 18, 19 which the individual joint rods 7 to 14 gimbal are hung.

Die Hebelwelle 18 ist im Kurvenkasten 17 drehbar gelagert und von einem Kurvenpaar 27 über einen Rollenhebel 28 (Kurvenfolgerhebel) angetrieben. Die im hinteren Maschinenbereich 16 angeordnete Hebelwelle 19 ist in Lagerböcken 29, 30 drehbar gelagert. Der Antrieb der Hebelwelle 19 erfolgt durch die Hebelwelle 18 über die Hebelanordnung 20, 21 mit Schubstange 22. Durch diese Kinematik wird die Hubbewegung der Greiferschienen 5, 6 durchgeführt.The lever shaft 18 is rotatably mounted in the cam box 17 and from a pair of curves 27 via a roller lever 28 (Cam follower lever) driven. The one in the back Machine area 16 arranged lever shaft 19 is in Bearing blocks 29, 30 rotatably mounted. The drive of the lever shaft 19 takes place through the lever shaft 18 via the lever arrangement 20, 21 with push rod 22. This kinematics means that Lifting movement of the gripper rails 5, 6 performed.

Die Schließbewegung der Greiferschienen 5, 6 erfolgt über die zusätzlichen Gelenkstangen 31 bis 34, wobei die Gelenkstangen 31, 32 seitlich kardanisch an der Greiferschiene 5 im vorderen 15 und hinteren Maschinenbereich 16 angelenkt sind. Die Gelenkstangen 33, 34 sind gleichermaßen kardanisch an die Greiferschiene 6 im vorderen und hinteren Maschinenbereich 15, 16 seitlich angelenkt. Hierzu wird auf Fig. 1, 2 verwiesen. The closing movement of the gripper rails 5, 6 takes place via the additional joint rods 31 to 34, the joint rods 31, 32 laterally gimbaled on the gripper rail 5 in the front 15 and rear machine area 16 are articulated. The Articulated rods 33, 34 are equally gimbaled to the Gripper rail 6 in the front and rear machine area 15, 16 hinged on the side. For this, reference is made to FIGS. 1, 2.

Die Gelenkstangen 31 bis 34 sind jeweils an einem ersten Schenkel 40 eines Winkelhebels 35 bis 38 angelenkt, der jeweils in einem Lager 39 gehalten ist. Ein jeweils weitere Schenkel 40' des jeweiligen Winkelhebels 35 bis 38 ist mit jeweils einer Gelenkstange 41 bis 44 verbunden, die ihrerseits über Hebel 45 bis 48 mit jeweils einer Hebelwelle 49, 50 verbunden sind. Der Antrieb der Hebelwelle 49 im vorderen Maschinenbereich 15 erfolgt wiederum über einen Rollenhebel 51 durch ein Kurvenpaar 52 im Kurvenkasten 17 im vorderen Maschinenbereich 15. Diese Drehbewegung der Hebelwelle 49 im vorderen Maschinenbereich 15 wird wiederum über einen Hebel 53 eine Schubstange 54 und über den Hebel 55 auf die Hebelwelle 50 im hinteren Maschinenbereich 16 übertragen.The joint rods 31 to 34 are each on a first Leg 40 of an angle lever 35 to 38 articulated, each is held in a warehouse 39. One more each Leg 40 'of the respective angle lever 35 to 38 is with each connected to an articulated rod 41 to 44, which in turn via levers 45 to 48, each with a lever shaft 49, 50 are connected. The drive of the lever shaft 49 in the front Machine area 15 again takes place via a roller lever 51 by a pair of curves 52 in the curve box 17 in the front Machine area 15. This rotary movement of the lever shaft 49 in front machine area 15 is in turn via a lever 53 a push rod 54 and via the lever 55 to the lever shaft 50 transmitted in the rear machine area 16.

Die Vorschubbewegung für die Greiferschienen 5, 6 erfolgt über Gelenkstangen 56, 57, die jeweils kardanisch mit den Greiferschienen 5, 6 verbunden sind. Über eine kardanische Verbindung zu jeweils einem Hebel 58, 59 wird eine gemeinsame Hebelwelle 60 erreicht, die über einen Rollenhebel 61 durch ein Kurvenpaar 62 angetrieben ist.The feed movement for the gripper rails 5, 6 takes place via Articulated rods 56, 57, each gimbaled with the Gripper rails 5, 6 are connected. About a gimbal Connection to a respective lever 58, 59 becomes a common one Lever shaft 60 reached by a roller lever 61 through a A pair of curves 62 is driven.

Eine Kurvenwelle 63 wird durch den Pressenantrieb selbst angetrieben und dient zum Antrieb des Vorschubmechanismus, des Spann- und Schließmechanismus sowie des Hub-/ Senkmechanismus.A camshaft 63 is driven by the press itself driven and serves to drive the feed mechanism, the Clamping and closing mechanism and the lifting / Lowering mechanism.

Die eventuellen Verzerrungen, die durch die Hebel- und Schubstangengetriebe entstehen, werden beim Berechnen der Kurvenbahnen berücksichtigt, so daß die Bewegungen der Greiferschienen gerade mit den entsprechenden Bewegungsüberschneidungsbögen erfolgen.The possible distortions caused by the lever and Push rod gearboxes are created when calculating the Curve paths are taken into account, so that the movements of the Gripper rails straight with the corresponding ones Movement overlap arches are made.

Zweites Ausführungsbeispiel:Second embodiment:

Das weitere Ausführungsbeispiel der Erfindung nach den Figuren 4 bis 6 zeigt einen Transfer mit einem gemeinsamen Hebe- und Schließantrieb. Dabei zeigt die Fig. 4 eine Grundstellung mit einem abgesenkten Transfer in einer geöffneten Spann- und Schließeinrichtung. Die Fig. 5 zeigt die Stellung für die Teileentnahme mit abgesenktem Transfer in geschlossener Stellung. Schließlich zeigt die Fig. 6 den Transfer in angehobener Transportstellung mit geschlossenem Schließ- bzw. Spannmechanismus.The further embodiment of the invention according to the figures 4 to 6 shows a transfer with a common lifting and Closing drive. 4 shows a basic position with a lowered transfer in an open clamping and Closing device. Fig. 5 shows the position for the Part removal with lowered transfer in closed Position. Finally, Fig. 6 shows the transfer in raised transport position with closed closing or Clamping mechanism.

Beim Dreiachs-Transfer werden üblicherweise die drei Bewegungen, nämlich Vorschub, Heben und Schließen, von je einem Kurvengetriebe erzeugt. Dies ist auch im ersten, zuvor beschriebenen Ausführungsbeispiel angegeben.The three-axis transfer is usually the three Movements, namely feed, lifting and closing, of one each Cam gear generated. This is also the first, before described embodiment.

Eine Kosteneinsparung kann dadurch erfolgen, daß die Hebe- und Schließbewegung von einem gemeinsamen Kurvengetriebe ausgeführt wird, das heißt, aus einer Bewegung wird eine Vertikal- und eine Querbewegung erzeugt. Gemäß der Darstellung in den Figuren 4 bis 6 wird dies durch folgende Maßnahmen in dem dort dargestellten Transferantrieb 100 erreicht.A cost saving can be achieved in that the lifting and Closing movement carried out by a common cam mechanism becomes, that is, a movement becomes a vertical and creates a transverse movement. As shown in the figures 4 to 6 this is done by taking the following measures in there shown transfer drive 100 reached.

In einer Wippe 101, die um einen Drehpunkt 102 schwenkbar gelagert ist, sind in zwei vertikal verschiebbaren Schlitten 103, 104 zwei Winkelhebel 105, 106 und je ein Anlenkhebel 107, 108 drehbar gelagert. An den Winkel- und Anlenkhebeln 105 bis 108 sind die Greiferschienen 109, 110 mittels Kardangelenken 111 kardanisch aufgehängt.In a rocker 101, which can be pivoted about a pivot point 102 is stored in two vertically displaceable Carriage 103, 104 two angle levers 105, 106 and one each Linkage lever 107, 108 rotatably mounted. At the angle and Linkage levers 105 to 108 are the gripper rails 109, 110 gimbaled 111 with universal joints.

Die Winkelhebel 105, 106 sind über je eine kardanisch gelagerte Schubstange 112, 113 in je einem Hebel 114, 115 aufgehängt, der über eine Hebelwelle 116 und Rollenhebel 117 vom Kurvengetriebe 118 angetrieben wird.The angle levers 105, 106 are each gimbal-mounted Push rod 112, 113 suspended in a lever 114, 115, the via a lever shaft 116 and roller lever 117 from the cam mechanism 118 is driven.

Die Schließbewegung für die Greiferschienen 109, 110 wird über einen Anschlag 119 und die Hubbewegung über einen Anschlag 120 nach unten begrenzt.The closing movement for the gripper rails 109, 110 is over a stop 119 and the stroke movement via a stop 120 capped.

Durch das Anheben der Hebel 114, 115 führen die Greiferschienen 109, 110 eine Schließbewegung bis zum Anschlag 119 durch. Durch ein weiteres Anheben der Hebel 114, 115 erfolgt eine Hubbewegung, wobei der Schlitten 103, 104, der in den Führungen 121 gelagert ist, sich anhebt.By lifting the lever 114, 115 lead the Gripper rails 109, 110 a closing movement up to Stop 119 through. By further lifting the levers 114, 115 a lifting movement takes place, the carriage 103, 104, the is mounted in the guides 121, rises.

Durch das Absenken der Hebel 114, 115 führt der Schlitten 103, 104 eine Senkbewegung bis zum Anschlag 120 durch. Beim weiteren Senken der Hebel 114, 115 führt die Greiferschiene 109, 110 eine Öffnungsbewegung durch, hervorgerufen durch das Schwenken der Winkelhebel 105, 106.By lowering the levers 114, 115, the carriage 103, 104 a lowering movement up to the stop 120. In the further Lowering the levers 114, 115 guides the gripper rail 109, 110 an opening movement caused by the pivoting the angle lever 105, 106.

Zwischen dem Heben und Schließen nimmt das Kurvengetriebe eine Raststellung ein, um ein hartes Anschlagen der Anschläge zu vermeiden. Der übrige Antriebsmechanismus erfolgt analog zum Ausführungsbeispiel nach Fig. 1 - 3.The cam mechanism takes one between lifting and closing Locked position in order to hit the stops hard avoid. The rest of the drive mechanism is the same as for Embodiment according to FIGS. 1-3.

Aus der Darstellung in Fig. 7 und 8 ist die Aufhängung, Lagerung und Führung der Greiferschienen 5, 6 nahezu identisch mit den bereits beschriebenen Ausführungsformen. Zum besseren Verständnis wurden die gleichen Bezeichungsnummern verwendet.From the representation in Fig. 7 and 8 is the suspension, Storage and guidance of the gripper rails 5, 6 almost identical with the embodiments already described. For the better Understandably, the same designation numbers have been used.

Neu ist, das die Bewegungen nicht mehr über den zentralen Pressenantrieb erfolgen, sondern das separate, regelbare Antriebe verwendet werden. Die in den Figuren 1 - 6 beschriebenen Bewegungsabläufe durch Zwangssynchronisation mit den Pressenbewegungen wird aufgelöst zugunsten eines flexiblen, auf den jeweiligen Umformprozeß optimal einstellbaren, Transfersystems. Die Synchronisation wird in Form der bekannten Elektronischen Welle ausgeführt. Als Antriebsmotoren werden bevorzugt drehzahlgeregelte, elektrisch oder hydraulisch angetriebene, Motoren verwendet. Die Regelung kann als ein geschlossener Regelkreis ausgeführt werden. Die Größe der jeweiligen Bewegung ist nicht mehr durch eine Kurve vorgegeben, sondern kann individuell durch die Regelung der Antriebe erfolgen.What is new is that the movements no longer take place via the central press drive, but that separate, controllable drives are used. In Figures 1 - 6 of motion described by forced synchronization with the press movements is resolved in favor of a flexible, optimally adjustable to the respective forming process, the transfer system. The synchronization is carried out in the form of the known electronic wave. Speed-controlled, electrically or hydraulically driven motors are preferably used as drive motors. The control can be carried out as a closed control loop. The size of the respective movement is no longer specified by a curve, but can be done individually by controlling the drives.

Der Hubantrieb 122 bewegt Hubwelle 123, auf der Hebel 23, 24 befestigt sind. Die Ausführung der Hubbewegung entspricht dem bereits beschriebenen Ablauf, jedoch ist durch Regelung von Hubantrieb 122 der Zeitpunkt, die Hubgröße und die Hubgeschwindigkeit frei wählbar. The lifting drive 122 moves the lifting shaft 123 on the lever 23, 24 are attached. The execution of the lifting movement corresponds to that process already described, but is regulated by Stroke drive 122 the time, the stroke size and the Freely selectable lifting speed.

Die Schließbewegung wird durch Schließantrieb 124, über Schließwelle 125, eingeleitet. Schließwelle 125 treibt über Hebel 45, 47 die kinematische Kette für den Schließhub der Greiferschienen 5, 6 in bereits beschriebener Form an.The closing movement is carried out by the closing drive 124 Closing shaft 125 initiated. Closing shaft 125 exaggerates Levers 45, 47 the kinematic chain for the closing stroke of the Gripper rails 5, 6 in the form already described.

Zur Übertragung der Hub- und Schließbewegung bzw. der Schwenkbewegung der Wellen 123, 125, vom Transferanfang zum Transferende dienen wieder Schubstangen 22, 54.To transmit the lifting and closing movement or Swiveling movement of the shafts 123, 125, from the start of the transfer to Transfer ends again serve push rods 22, 54.

Der Vorschubantrieb 126 erzeugt über Vorschubwelle 127, Hebel 58, 59 und Gelenkstangen 56, 57 den horizontalen Teil des Transportschrittes der Greiferschienen 5, 6.The feed drive 126 generates levers via feed shaft 127 58, 59 and articulated rods 56, 57 the horizontal part of the Transport step of the gripper rails 5, 6.

Wird bei einem Transfersystem auch eine Anpassung an unterschiedliche Breitenmaße der Werkstücke gefordert, wie es z.B. bei einem Stanzautomat der Regelfall ist, wird eine Ausführung gemäß Figur 9 und 10 vorgeschlagen.If a transfer system is also an adjustment to different width dimensions of the workpieces are required, as is the case e.g. is the rule with a punching machine, one Execution according to Figures 9 and 10 proposed.

Antrieb 128 treibt die Spindel 129 an, die in Verbindung mit den an den Aufbauplatten 131, 132 befestigten Muttern 130 steht. Aufbauplatte 131, 132 sind in Führungen 133 horiziontal verschiebbar gelagert. Da sich die Antriebs- und Führungselemente der Hub- und Schließbewegung der Greiferschienen 5, 6 auf der Aufbauplatte 131, 132 befinden, kann auf einfache Weise durch eine Horizontalbewegung die Weiteneinstellung erfolgen.Drive 128 drives spindle 129 in connection with the nuts 130 attached to the mounting plates 131, 132 stands. Construction plate 131, 132 are horizontal in guides 133 slidably mounted. Since the drive and Guide elements of the lifting and closing movement of the Gripper rails 5, 6 are located on the mounting plate 131, 132, can easily by a horizontal movement Width adjustment done.

Als weitere Ausführungsvariante wird auf die Hub- und Schließwelle 123, 125 verzichtet und für jede Greiferschiene 5, 6 ein separater Hubantrieb 122 und Schließantreib 124 vorgeschlagen. Hierdurch wird die Flexibilität des Tranfersystems weiter erhöht und ermöglicht beispielsweise quer zur Transportrichtung eine schrägstellung der Greiferschienen 5, 6 zueinander oder bezogen auf den Schließantrieb eine unsymetrische Schließbewegung. Wird auch auf Schubstangen 22, 54 verzichtet, und werden am Transferende ebenfalls eigene Hubantriebe 122 und Schließantriebe 124 vorgesehen, so ist auch eine Schrägstellung der Greiferschienen in Transportrichtung möglich. In einfacher konstruktiver Ausführung erfolgt die Schließbewegung dadurch, dass an dem jeweiligen Schließantrieb 124 Hebel 134 bis 137 befestigt werden, die über Gelenkstangen 31 bis 34 die Schließbewegung der Greiferschienen 5, 6 einleiten. Gemeinsam ist der Vorschubantrieb 126 in der in Fig. 7, 8 beschriebenen Funktion.As a further embodiment, the lifting and Closing shaft 123, 125 omitted and for each gripper rail 5, 6 a separate lifting drive 122 and closing drive 124 proposed. This will increase the flexibility of the Transfer system further increased and enables, for example, across an inclined position of the gripper rails for the transport direction 5, 6 to each other or based on the closing drive asymmetrical closing movement. Also on push rods 22, 54 waived, and will also become their own at the end of the transfer Lift actuators 122 and closing actuators 124 are provided as well an inclination of the gripper rails in the transport direction possible. This is done in a simple design Closing movement in that on the respective closing drive 124 levers 134 to 137 are attached using articulated rods 31 to 34 the closing movement of the gripper rails 5, 6 initiate. Common is the feed drive 126 in the in FIG. 7, 8 described function.

Ist eine Weiteneinstellung nicht erforderlich, kann auf diese Einrichtung gemäß Fig. 9 und 10 verzichtet werden. Die Ausführung besteht dann aus der Anordnung der Antriebe für Schließen, Heben und Vorschub, gemäß Darstellung und Beschreibung der Figuren 9 und 10.If a width adjustment is not necessary, you can use this 9 and 10 are dispensed with. The Execution then consists of the arrangement of the drives for Closing, lifting and feeding, as shown and Description of Figures 9 and 10.

Die Erfindung ist nicht auf die dargestellten und beschriebenen Ausführungsbeispiele beschränkt. Sie umfaßt auch vielmehr alle weiterbildungen im Rahmen der Schutzrechtsansprüche. The invention is not limited to that shown and described Embodiments limited. Rather, it includes everyone further training in the context of property rights claims.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
Schmiedemaschineforging machine
22
Pfeilarrow
33
Pfeilarrow
44
Transportrichtungtransport direction
55
Greiferschienegripper rail
66
Greiferschienegripper rail
77
Gelenkstangejoint rod
88th
Gelenkstangejoint rod
99
Gelenkstangejoint rod
1010
Gelenkstangejoint rod
1111
Gelenkstangejoint rod
1212
Gelenkstangejoint rod
1313
Gelenkstangejoint rod
1414
Gelenkstangejoint rod
1515
vorderer Maschinenbereichfront machine area
1616
hinterer Maschinenbereichrear machine area
1717
Kurvenkastencurve case
1818
Hebelwellelever shaft
1919
Hebelwellelever shaft
2020
Hebellever
2121
Hebellever
2222
Schubstangepushrod
2323
Hebellever
2424
Hebellever
2525
Hebellever
2626
Hebellever
2727
Kurvenpaarpair of curves
2828
Rollenhebelroller lever
2929
Lagerbockbearing block
3030
Lagerbockbearing block
3131
Gelenkstangejoint rod
3232
Gelenkstangejoint rod
3333
Gelenkstange joint rod
3434
Gelenkstangejoint rod
3535
Winkelhebelbell crank
3636
Winkelhebelbell crank
3737
Winkelhebelbell crank
3838
Winkelhebelbell crank
3939
Lagercamp
4040
Schenkelleg
4141
Gelenkstangejoint rod
4242
Gelenkstangejoint rod
4343
Gelenkstangejoint rod
4444
Gelenkstangejoint rod
4545
Hebellever
4646
Hebellever
4747
Hebellever
4848
Hebellever
4949
Hebelwellelever shaft
5050
Hebelwellelever shaft
5151
Rollenhebelroller lever
5252
Kurvenpaarpair of curves
5353
Hebellever
5454
Schubstangepushrod
5555
Hebellever
5656
Gelenkstangejoint rod
5757
Gelenkstangejoint rod
5858
Hebellever
5959
Hebellever
6060
Hebelwellelever shaft
6161
Rollenhebelroller lever
6262
Kurvenpaarpair of curves
6363
TransferantriebswelleTransfer drive shaft
100100
Transferantriebtransfer drive
101101
Wippeseesaw
102102
Drehpunktpivot point
103103
Schlittencarriage
104104
Schlittencarriage
105105
Winkelhebelbell crank
106106
Winkelhebelbell crank
107107
AnlenkhebelFeedback lever
108108
Anlenkhebel Feedback lever
109109
Greiferschienegripper rail
110110
Greiferschienegripper rail
111111
Kardangelenkuniversal joint
112112
Schubstangepushrod
113113
Schubstangepushrod
114114
Hebellever
115115
Hebellever
116116
Hebelwellelever shaft
117117
Rollenhebelroller lever
118118
Kurvengetriebecam gear
119119
Anschlagattack
120120
Anschlagattack
121121
Führungenguides
122122
HubantriebLinear actuator
123123
HubwelleHubwelle
124124
Schließantriebclosing drive
125125
Schließwelleclose shaft
126126
Vorschubantriebfeed drive
127127
Vorschubwellefeed shaft
128128
Antriebdrive
129129
Spindelspindle
130130
Muttermother
131131
Aufbauplattemounting plate
132132
Aufbauplattemounting plate
133133
Führungguide
134134
Hebellever
135135
Hebellever
136136
Hebellever
137137
Hebellever

Claims (16)

  1. Transfer drive for a press comprising three-axis conveying of workpieces through machining stations, with two mounting or gripper rails (5, 6; 109, 110) arranged parallel to each other and suspended and guided on hinged rods, a horizontal longitudinal movement being carried out by an advance mechanism, a lifting/lowering movement being carried out by a lifting mechanism, and a transverse movement being carried out by a fixing or closing mechanism, characterised in that the gripper rails (5, 6; 109, 110) are suspended and guided in all three axes of movement by a respective, separate hinged rod arrangement (7 to 14; 31 to 34; 56, 57), without additional guide elements.
  2. Transfer drive according to claim 1, characterised in that the gripper rails (5, 6) are suspended cardanically, without additional guides, in three axes of movement in a multi-point suspension on at least four hinged rods (7 to 10 and 11 to 14), the hinged rods preferably being liftable and lowerable by lever shafts (18, 19) with levers (23 to 26) to carry out the lifting and lowering movement.
  3. Transfer drive according to claim 1 or 2, characterised in that hinged rods (7 to 14) are suspended at their upper ends in levers (23 to 26) to carry out the lifting and lowering movement, the levers in turn being driven via lever shafts (18, 19) and roller levers (28) by means of cam control.
  4. Transfer drive according to claim 1 or 2, characterised in that to carry out the fixing or closing movement of the gripper rails (5, 6), hinged rods (31 to 34) which can be operated via angled levers (35 to 38) are provided, the angled levers (35 to 38) in turn being driven by means of a respective lever shaft (49, 50) with individual levers (45 to 48) and associated hinged rods (41 to 44).
  5. Transfer drive according to any of the preceding claims, characterised in that to carry out an advancing movement of the gripper rails (5, 6), a cam-disk drive (62) is provided which acts on a lever shaft (60) via a roller lever (61), and in that the lever shaft (60) drives a drive lever (58, 59), and the drive lever drives a hinged rod (56, 57) connected to the respective gripper rail.
  6. Transfer drive according to any of the preceding claims, characterised in that two respective front (7, 8 and 11, 12) and two respective back (9, 10 and 13, 14) hinged-rod arrangements for the lifting and lowering movement and one respective front (31, 33) and one respective back (32, 34) hinged rod are associated with the gripper rails (5, 6), the front and back hinged-rod arrangements being operatively connected to one another via push rods (22, 54).
  7. Transfer drive according to any of the preceding claims, characterised in that the hinged rods (7 to 14) for the lifting and lowering movement and/or the hinged rods (31 to 34) for the fixing and closing movement are each driven by a cam-controlled lever shaft (18, 49).
  8. Transfer drive in particular according to any of the preceding claims, characterised in that to carry out a joint lifting and closing movement a respective hinged rod (105, 106) connected to the gripper rail (109, 110) is formed as an angled lever, mounted in a carriage (103, 104) that can be displaced vertically, and that a respective lever (114, 115) mounted on a lever shaft (116) carries out a pivoting and lifting movement of the angled lever (105, 106) respectively suspended cardanically thereon.
  9. Transfer drive according to claim 7, characterised in that the closing movement and the lifting movement are limited by stops (119, 120) for the angled levers (105, 106).
  10. Transfer drive according to claim 1, characterised in that the gripper rails (5,6) are suspended cardanically, without additional guides, in three axes of movement in a multi-point suspension on at least four respective hinged rods (7 to 10 and 11 to 14), the hinged rods preferably being liftable and lowerable by a lifting drive (122) and lifting shaft (123, 19) with levers (23 to 26), to carry out the lifting and lowering movement.
  11. Transfer drive according to claim 1, characterised in that to carry out the fixing and closing movement of the gripper rails (5, 6), hinged rods (31 to 34) which can be operated via angled levers (35 to 38) are provided, the angled levers (35 to 38) in turn being driven via a closing drive (124) by a respective closing shaft (125, 50) with individual levers (45 to 48) and associated hinged rods (41 to 44).
  12. Transfer drive according to any of the preceding claims, characterised in that to carry out an advancing movement of the gripper rails (5, 6) an advance drive (126) is provided which drives the drive levers (58, 59) via advance shaft (127), and said advance shaft (127) drives a hinged rod (56, 57) connected to the respective gripper rail.
  13. Transfer drive according to any one of more of the preceding claims, characterised in that the lifting and/or closing mechanisms are mounted on a fitting plate (131, 132), and the fitting plate (131, 132) is guided and mounted in horizontal guides (133).
  14. Transfer drive according to claim 13, characterised in that a nut (130) is fixed to the fitting plate (131, 132) and is operatively connected to drive (128) via spindle (129).
  15. Transfer drive according to claim 1, characterised in that the gripper rails (5, 6) are suspended cardanically, without additional guides, in three axes of movement in a multi-point suspension on at least four respective hinged rods (7 to 10 and 11 to 14), the hinged rods preferably being liftable and lowerable by a respective lifting drive (122) with levers (23 to 26) to carry out the lifting and lowering movement.
  16. Transfer drive according to claim 1, characterised in that to carry out the fixing and closing movement of the gripper rails (5, 6), hinged rods (31 to 34) which can be operated via levers (134 to 137) are provided, wherein the levers (134 to 137) in turn can be driven by a respective closing drive (124).
EP00113329A 1999-07-27 2000-06-23 Transfer drive for a press Expired - Lifetime EP1072335B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19934460 1999-07-27
DE19934460 1999-07-27
DE10012022A DE10012022A1 (en) 1999-07-27 2000-03-11 Transfer drive for one person
DE10012022 2000-03-11

Publications (3)

Publication Number Publication Date
EP1072335A2 EP1072335A2 (en) 2001-01-31
EP1072335A3 EP1072335A3 (en) 2001-11-07
EP1072335B1 true EP1072335B1 (en) 2003-12-17

Family

ID=26004808

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00113329A Expired - Lifetime EP1072335B1 (en) 1999-07-27 2000-06-23 Transfer drive for a press

Country Status (4)

Country Link
US (1) US6338264B1 (en)
EP (1) EP1072335B1 (en)
CZ (1) CZ297659B6 (en)
ES (1) ES2212942T3 (en)

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US7128195B2 (en) * 2004-03-22 2006-10-31 Linear Transfer Systems Ltd. Workpiece transfer system for stamping press
JP6671119B2 (en) 2015-07-31 2020-03-25 コマツ産機株式会社 Work transfer device

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SU1433594A1 (en) * 1987-04-06 1988-10-30 Производственное объединение "Новокраматорский машиностроительный завод" Gripper feeding device for press
DE3721694A1 (en) * 1987-07-01 1989-01-12 Eumuco Ag Fuer Maschinenbau CONTROL DEVICE FOR THE LIFTING BAR AUTOMATIC OF A FORGING PRESS
DE3842182C1 (en) * 1988-12-15 1989-09-28 Maschinenfabrik Mueller-Weingarten Ag, 7987 Weingarten, De
DE3913663A1 (en) * 1989-04-26 1990-10-31 Schuler Gmbh L CONVERSION DEVICE IN A TRANSFER PRESS OR THE LIKE. FORMING MACHINE
DD286979A5 (en) * 1989-08-15 1991-02-14 Veb Kombinat Umformtechnik "Herbert Warnke",De GRIPPER RAIL DRIVE FOR TRANSFER PRESSES
JPH0785819B2 (en) * 1991-09-30 1995-09-20 株式会社栗本鐵工所 Automatic transport device for forging press
JP2790267B2 (en) * 1993-06-30 1998-08-27 住友重機械工業株式会社 Transfer feeder for hot forging press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006052914B3 (en) * 2006-11-08 2008-07-24 Müller Weingarten AG Transfer device for a press

Also Published As

Publication number Publication date
CZ297659B6 (en) 2007-02-28
ES2212942T3 (en) 2004-08-16
CZ20002645A3 (en) 2001-09-12
EP1072335A2 (en) 2001-01-31
US6338264B1 (en) 2002-01-15
EP1072335A3 (en) 2001-11-07

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