EP0672480B1 - Système de transport - Google Patents

Système de transport Download PDF

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Publication number
EP0672480B1
EP0672480B1 EP95102384A EP95102384A EP0672480B1 EP 0672480 B1 EP0672480 B1 EP 0672480B1 EP 95102384 A EP95102384 A EP 95102384A EP 95102384 A EP95102384 A EP 95102384A EP 0672480 B1 EP0672480 B1 EP 0672480B1
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EP
European Patent Office
Prior art keywords
transport
hoisting
drive
transport system
work piece
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
EP95102384A
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German (de)
English (en)
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EP0672480A1 (fr
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
Original Assignee
Maschinenfabrik Mueller Weingarten AG
Mueller Weingarten AG
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Publication of EP0672480A1 publication Critical patent/EP0672480A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
    • B21D43/052—Devices having a cross bar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
    • B21D43/055—Devices comprising a pair of longitudinally and laterally movable parallel transfer bars

Definitions

  • the invention relates to a transport system for transporting workpieces through processing stations of a press or press line according to the preamble of claim 1.
  • step or transfer presses have a transport device with which the workpieces are transported from one work station to the next.
  • the longitudinal and transverse movements controlled by cam mechanisms as well as any lifting movements of the transport device are derived from the main drive and are thus associated with the tappet movement synchronized.
  • the basic structure of such a drive is shown in EP 0 210 745, Fig. 4.
  • the classic transfer system therefore performs the following functions in two directions:
  • Gripping transverse movement
  • lifting vertical movement
  • conveying longitudinal movement
  • suction bars cannot move outwards during the pressing process, like the gripper rails in 3-axis operation with their transverse closing and opening movement, a parking position for the suction bars must be created for this suction bar transfer, in which they are moved during the actual machining process.
  • driven slides, carriages or the like can also be arranged on the support rails, to which the cross members are attached with suction devices (DE 38 24 058 C1).
  • the mounting rails only carry out a lifting movement during the transport process, while the longitudinal movement of the suction bars takes place through the slides.
  • step presses which are basically similar in structure, with the difference that the transport steps are much larger due to the tool size or workpiece size.
  • GT presses large part step presses
  • the use of stepping presses or large-part stepping presses therefore enables high production output, since all the manufacturing steps required to manufacture a workpiece are carried out simultaneously.
  • a part is completed with each ram stroke, regardless of how many workstations are required to manufacture it in individual cases.
  • a comparison with conventional press lines with individual presses therefore shows with step presses the advantage of a more compact production system, lower energy costs and investment costs, as well as less downtime when changing tools and during the changeover process.
  • step presses of the type mentioned have the disadvantage that a forced linking of all processing stations is required.
  • the workpieces are passed through the step press in a certain machining cycle, with longer parts and thus longer transport routes for large parts and the associated large tools Transport times between the individual machining processes are set because all press rams perform the machining process synchronously and at the same time.
  • An individual, phase-shifted and thus time-saving handling of the workpieces within the press is not possible.
  • the press In order to apply the high forces with simultaneous tappet loading, the press must be sized accordingly.
  • the invention is based on the object of avoiding the abovementioned disadvantages and, in particular, of obtaining as universal a transfer drive as possible for a step press and in particular a large part step press or a press line.
  • the basic idea of the invention is that the transfer is given its own drive in each tool stage, which can work independently of the adjacent drive. This achieves universal mobility of the workpiece transport between the individual processing stages, and because of the existing possibility of changing the position during the transport process, the otherwise required orientation stations can also be omitted.
  • the invention realizes the principle of a completely independent drive in any degree of freedom, i. H. that the workpiece is transported from one machining station to the next completely independently of a central drive by individually programmable drives.
  • the transport movements of the workpieces and the machining processes in the individual stations can take place at different times.
  • the control of the press and in particular the movements of the transfer must be designed so that no collisions occur.
  • the movements of the individual transfer axes inevitably run synchronously with the press drive.
  • the transfer also has 6 degrees of freedom, which means that existing tool sets can be mechanized with different partial layers. Due to the individual drives of the transfer for each tool stage, larger distances between the tool stages can be compensated for, in particular by phase shifts, so that individual presses can also be loaded in press lines without there being poor freedom of movement due to long transport routes.
  • step press 1 in particular a large part step press 1 (GT press), for example, the first five processing steps 3 to 7 in side view or in longitudinal section (FIG. 1) or in plan view (FIG. 2 ).
  • GT press large part step press 1
  • Each processing stage 3 to 7 each has a sliding table 9 with a lower tool 10 fastened thereon.
  • An upper tool 11 is fastened to a press ram 12 in each processing stage, which in turn is connected to the head piece 13 of the press via a drive chain.
  • the head pieces 13 of the press are connected to the associated press tables, not shown, by the press stands 14, 14 'to 19, 19' arranged to the side of the processing station, between which the press rams of each processing stage are guided.
  • a suction beam drive is provided for the transport of the respective workpiece 20, consisting of a suction beam or a crossbar 21 with attached suction spiders, magnet holders 22 or the like (see also FIG. 3).
  • a gripper arrangement 23 running in 3-axis movement can also be provided for the lateral gripping of the workpiece 20, as shown in FIG. 5.
  • a gripper arrangement 23 is provided with a transport system 24, which is installed as an independent workpiece transport unit for each processing stage 3 to 7.
  • Each transport system 24 consists of a first longitudinal transport device 25 for carrying out the horizontal longitudinal movement in the workpiece transport direction 27 and a second stroke / transverse movement device 26, for carrying out a stroke movement in the vertical direction 28 and any required transverse movement 29, which in 3-axis operation as a working axis or may be required in 2-axis operation as a setup axis.
  • the press according to the invention can therefore be operated in 2-axis operation or in 3-axis operation with a suction beam drive or gripper arrangement. As a result, different press systems can be implemented in a single press.
  • FIGS. 1 to 3 and FIGS. 8a to 8c being used.
  • the longitudinal transport device 25 is fastened to a lifting mechanism designed as a lifting column 30.
  • the longitudinal transport device 25 has, according to the detailed illustration according to FIGS. 8a to 8c, a horizontal longitudinal beam 31 which is fastened to a drive housing 32, which in turn is firmly connected to the lifting column 30.
  • a rope or belt 34 is attached to both ends 35, 36 of the horizontal longitudinal member 31 via a first cable or belt drive 33 and driven by a drive motor 39 via two deflection rollers 37, 37 'and a drive pinion 38. If the drive pinion 38 rotates, the belt 34 and thus the horizontal longitudinal member 31 are displaced horizontally, the Direction of displacement depends on the direction of rotation of the drive pinion 38. As a result, the horizontal longitudinal member 31 can carry out a horizontal lifting movement over almost its entire length. 8a, 8b, the longitudinal beam 31 is aligned almost completely to the right.
  • the horizontally movable longitudinal member 31 (bearing 40) mounted on the drive housing 32 in turn has guide means 41 which permit a horizontal longitudinal transport of a carriage 42.
  • the carriage 42 serves to receive the suction beam 21 or crossbar 21 or a gripper arrangement 23 shown in FIG. 5.
  • the longitudinal transport of the carriage 42 in the guide means 41 takes place via a cable or belt drive 43 fastened by means of a clamping device 78, z. B.
  • a belt 44 is guided over two deflection rollers 45, 45 ', which in turn are located at the ends of the horizontal longitudinal member.
  • the belt 44 is fastened to the drive housing 32 via a clamping device 79.
  • the slide 42 shown in a side view in FIG. 8 a and a top view in FIG. 8 b is consequently displaced in the guides 41 over almost the entire length of the longitudinal beam 31. This is indicated by arrow 46 in Fig. 8b.
  • the horizontal longitudinal transport device 25 is shown in different positions in the respective processing stage 3 to 7.
  • the first processing stage 3 in the first stand area 14, 14 ', there is a transport system 24 with the associated longitudinal transport device 25, the horizontal longitudinal beam 31 of which is oriented almost completely in the direction of the workpiece transport (arrow 27), the suction beam or the cross-beam 21 being exactly in the Machining area of the tools 10, 11 is located.
  • the workpiece placement position in the first processing stage 3 is accordingly shown here.
  • FIGS. 1 and 2 show further transport systems 24 arranged between the further press stands 15 to 19, the horizontal longitudinal beams 31 of which, with the support carriages 42 thereon for the suction beams 21, are in the various processing positions, as is the case in connection with the stroke / cross to be explained below - Movement device is described in more detail.
  • This combined lifting / transverse movement device 26 comprises a carrying carriage 49 guided in a horizontal housing 48, which in turn receives the lifting column 30 in vertical guide means 50.
  • a spindle 52 is driven via a first drive motor 51, which interacts with a spindle nut 53 fastened to the support slide 49 for the horizontal transverse displacement thereof.
  • the support carriage 49 can consequently cross the transport direction according to arrow 29 over the entire length of the drive spindles 52 be moved.
  • This transverse movement results in a closing / opening movement, in particular for a gripper arrangement, as is shown in more detail in FIG. 5. This corresponds to a 3-axis transfer operation.
  • the transverse movement (arrow 29) of the support slide 49 can be used as a set-up axis for converting the tools.
  • the combined lifting / transverse movement device has a further drive motor 54, which represents a spline shaft 55 for a lifting drive of the lifting column 30 (arrow 28).
  • z. B. also used a ball slide shaft.
  • the drive motors 51, 54 are designed as high-precision drive motors that allow programmable movement sequences in their movements. This is done, for example, with programmable servomotors 51, 54.
  • the combined lifting / transverse movement device 26 is in turn attached to an additional, height-adjustable bracket 56, which has its own height adjustment mechanism 57 as a set-up axis.
  • This height adjustment mechanism comprises, in particular, a spindle drive 58 with deflection gear 59, a common drive motor 60 being provided for the transport systems 24 arranged on both sides of the press stands.
  • FIGS. 4a, 4b shows a further possible application of the invention based on the transport system 24 according to the invention.
  • a 2-axis suction beam drive is shown in front view, the suction beam 21 from its being due to the universal actuation of the transport system 24 usually horizontal position can be brought into an inclined position 21 '.
  • the lifting mechanisms of the lifting / transverse movement devices 26 arranged on both sides are actuated differently, so that the lifting mechanism on the right in FIG. 4 assumes, for example, a higher position than the left lifting mechanism.
  • universal joints 61 are required at the ends of the suction beam, which produce a transition to the adjacent connecting flange 62.
  • the inclined position shown in Fig. 4a must of course also be compensated for by a transverse horizontal movement (arrow 29) of the transverse transport device 26, i. H. the support slide 49 carries out an adapted transverse movement (FIG. 4b).
  • This transverse movement (arrow 29) can also take place independently of the inclined position if the production of parts makes this necessary.
  • a gripper arrangement 23 can also be used for the workpiece transport instead of the suction bar operation as shown in FIG. 5.
  • the longitudinal transport device 25 suspended on the lifting column 30 has a coupling device 63 on its support carriage 42, as is shown in more detail in FIGS. 8a to 8c.
  • this coupling device 63 comprises a swivel cross 64 which is pivotable on the central bearing pin 65 Carriage 42 is mounted.
  • the swivel cross 64 has two upper arms 66, 66 ', each with a connecting bolt 67 for fastening a transverse flange 68 for fastening the suction beam 21.
  • the two lower arms 69, 69' in turn have connecting bolts 67, on which one in Figures 8a to 8c gripper arrangement not shown is to be attached.
  • the swivel cross 64 is therefore prepared to receive both a suction bar 21 and a gripper arrangement 23, the former being shown in FIGS. 1 to 4 and FIGS. 8 and the latter in FIG. 5.
  • the swivel cross 64 can be pivoted about the central bearing pin 65.
  • the swivel cross 64 has a swivel arm 70, which is shown in FIGS. 8 a and 8c and is directed downward and is swiveled about the bearing axis 65 by means of a spindle 71 and a spindle drive 72.
  • the suction bar 21 can perform a pivoting movement about the bearing axis 65.
  • additional stake-out holders 74 are indicated on the sliding tables, on which the suction bars or the gripper arrangements can be stake out for changing tools.
  • FIGS. 1 and 2 illustrates the versatility of the transport system according to the invention, which is located between each press stand area.
  • the workpiece is placed on the lower tool 10 by the transport system 24 arranged between the press stands 14, 14 ', while in the subsequent processing stage 4 the workpiece is placed on the lower tool at the same time by the between the press stands 15, 15 'arranged further transport device is placed.
  • the transport system arranged between the press stands 16, 16 ' transports the workpiece from the processing stage 4 to the processing stage 5, from which the workpiece already processed in this processing stage 5 is removed by the transport unit arranged between the press stands 17, 17'.
  • the transport device arranged between the press stands 18, 18 ' removes the workpiece arranged in the processing stage 6 and feeds it to the processing stage 7, in which the finished workpiece is being removed from the transport device arranged between the press stands 19, 19'.
  • the transport system 24 can also be located between the processing stages of a press line 2.
  • the transport systems 24 can be constructed in the same way as described above, with each transport system 24 again serving the processing stages adjacent to it on the left and right, as can be seen from FIG. 6.
  • the transport systems 24 are accordingly fastened to associated fastening supports 75, which stand in place of the press stands in the exemplary embodiments described above.
  • transport systems 24 ' are provided, each of which likewise comprises a longitudinal transport device 25 as described above, but which is suspended from two adjacent stroke / transverse movement devices 26 for better weight distribution. Both lifting / transverse movement devices 26 can then be moved up and down as a set-up axis by means of a common height adjustment mechanism 57.

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

Claims (20)

  1. Système de transport pour transporter des pièces à travers de postes de traitement d'une presse ou d'un train de presses, chaque poste de traitement (3 à 7) présentant au moins un dispositif de transport indépendant, propre, recevant et transportant la pièce (24) pour effectuer au moins un mouvement de transport à deux axes, qui, à l'aide d'un mécanisme d'avance, effectue un mouvement longitudinal horizontal dans la direction de transport des pièces,
    caractérisé en ce que, pour effectuer un mouvement de transport à deux axes ou à trois axes, un mouvement vertical orienté dans la direction de transport des pièces peut être effectué au moyen d'un mécanisme de levage et/ou un mouvement transversal par rapport à la direction de transport des pièces, au moyen d'un mécanisme de fermeture/ouverture, et un dispositif de transport longitudinal (25) ayant des moyens de réception (21,23) pour la pièce (20) est prévu, qui servent à la fixation alternative d'une traverse (21) à moyens d'aspiration (22) ou pour la fixation d'un dispositif de prise (23).
  2. Système de transport selon la revendication 1,
    caractérisé en ce que le dispositif de transport longitudinal (25) effectue un mouvement de transport horizontal s'étendant dans la direction de transport (27) des pièces et à l'encontre de celle-ci et est relié à un autre dispositif de transport (26) qui est monté dans un dispositif à mouvement transversal horizontal (48,49) déplaçable transversalement à la direction de transport des pièces.
  3. Système de transport selon la revendication 2,
    caractérisé en ce que l'autre dispositif de transport (26) est réalisé comme dispositif combiné de levage/mouvement transversal (26), qui comporte un mécanisme de levage (30).
  4. Système de transport selon la revendication 1 ou 2,
    caractérisé en ce que le dispositif de transport longitudinal horizontal (25) présente un bras (31) s'étendant horizontalement qui sert au transport des pièces d'un poste de traitement au plus proche (3 à 7) et sur lequel se trouve un chariot de transport longitudinalement déplaçable (42) sur des guides (41) pour la réception des pièces.
  5. Système de transport selon la revendication 4,
    caractérisé en ce que le bras horizontal (31) effectue un mouvement relatif propre dans la direction de transport des pièces (27) et à l'encontre de celle-ci au moyen de dispositifs de guidage (40) par rapport au dispositif de levage/mouvement transversal (26).
  6. Système de transport selon la revendication 4 ou 5,
    caractérisé en ce que le mouvement longitudinal du chariot de transport (42) pour la réception des pièces est effectué au moyen d'un entraînement à courrole (44) guidé par l'intermédiaire de rouleaux de renvoi (45,45') disposés aux extrémités sur le bras (31).
  7. Système de transport selon la revendication 5,
    caractérisé en ce que le déplacement longitudinal du bras (31) est effectué au moyen d'un entraînement à courroie (34), d'un entraînement à crémaillère ou analogue.
  8. Système de transport selon la revendication 2 ou 3,
    caractérisé en ce que l'autre dispositif de transport (26) comporte, d'une part, un mécanisme de levage réalisé comme colonne de levage (30), qui est guidé dans un dispositif de réception réalisé en particulier comme chariot de support (49) en étant mobile vers le haut et vers le bas au moyen d'un entraînement de levage, et en ce que le chariot de support (49), d'autre part, peut être entraîné dans un dispositif de guidage transversal horizontal (48), déplaçable transversalement par rapport à la direction de transport des pièces, au moyen d'un entraînement transversal (51 à 53) indépendamment de l'entraînement de levage (54,55).
  9. Système de transport selon une des revendications 2, 3 ou 8,
    caractérisé en ce que l'autre dispositif de transport (26), de son côté, est fixé à une console (56) réglable en hauteur qui, en particulier, est déplaçable vers le haut et vers le bas sur des guides comme dispositif d'équipement pour l'échange des outils.
  10. Système de transport selon la revendication 8,
    caractérisé en ce que le dispositif de levage/mouvement transversal (26) avec le chariot de support (49) pour la colonne de levage (30) présente un entraînement horizontal (51 à 53) pour le chariot de support (49), qui est réalisé comme entraînement à courroie (76) ou entraînement à axe (51 à 53), des servomoteurs programmables (51,54) étant prévus pour l'entraînement transversal du chariot de support (49) portant la colonne de levage (30).
  11. Système de transport selon la revendication 8,
    caractérisé en ce que le dispositif de levage/mouvement transversal (26) avec le chariot de support (49) pour la colonne de levage (30) présente un entraînement vertical qui est réalisé comme entraînement à câble ou à courroie (77) ou entraînement à arbre cannelé et roue dentée (54,55) ou analogue, des servomoteurs programmables (54) étant prévus pour le réglage en hauteur de la colonne de levage (30).
  12. Système de transport selon une des revendications 8-11,
    caractérisé en ce que le chariot de support (49) transversalement déplaçable du dispositif de levage/mouvement transversal (26) avec la colonne de levage (30) réglable en hauteur guidée dans celui-ci présente un premier agencement à moyen de traction comme entraînement à courroie (76), qui présente des rouleaux de renvoi agencés aux extrémités du dispositif de levage/mouvement transversal (26) pour un moyen de traction pouvant être entraîné, au moyen duquel le chariot de support (49) est entraîné de façon transversalement déplaçable par rapport à la direction de transport des pièces.
  13. Système de transport selon une des revendications 8-12,
    caractérisé en ce que le chariot de support (49) transversalement déplaçable du dispositif de levage/mouvement transversal (26) avec la colonne de levage (30) réglable en hauteur guidée dans celui-ci présente, à chaque fois, des rouleaux de renvoi pour un second agencement à moyen de traction (77), le moyen de traction correspondant (77) étant maintenu dans des paliers d'extrémité agencés aux extrémités du dispositif de levage/mouvement transversal (26) et pouvant être entraîné dans le sens d'un réglage en hauteur de la colonne de levage (30), de sorte qu'une boucle de renvoi supérieure et inférieure, de longueur réglable, est formée sur la colonne de levage (30).
  14. Système de transport selon la revendication 2 ou 3,
    caractérisé en ce que les dispositifs de levage/mouvement transversal (26) sont agencés, à chaque fois, entre les supports de presse (14 à 19) d'une presse à étages ou entre des presses individuelles d'un train de presses (2).
  15. Système de transport selon une des revendications 4-14,
    caractérisé en ce que le chariot de transport (42) présente un dispositif de couplage (62,63).
  16. Système de transport selon la revendication 15,
    caractérisé en ce que le dispositif de couplage comporte une bride de raccordement (62) ou un dispositif pivotant (64), en particulier la bride de raccordement (62) ou le dispositif pivotant (64) présentant, au choix, des moyens de réception (67) pour une traverse (21) équipée d'un moyen d'aspiration (22) (poutre d'aspiration) ou pour une barrette ayant des éléments de prise (23).
  17. Système de transport selon une des revendications 15 ou 16,
    caractérisé en ce que le dispositif de couplage (62,63) pour la traverse (21) ou les éléments de prise (23) comporte une croix pivotante (64) comme bride de réception pour la poutre d'aspiration (21,22) ou des éléments de prise (23), la croix pivotante (64) étant montée, par l'intermédiaire d'un entraînement pivotant (72), autour d'un axe de palier horizontal (65) au moyen d'un entraînement à arbre (71) à moteur programmable ou analogue, de façon pivotante.
  18. Système de transport selon une des revendications précédentes,
    caractérisé en ce que les dispositifs de levage/mouvement transversal (26) sont agencés des deux côtés de l'espace d'outils et sont commandables indépendamment l'un de l'autre, des articulations de compensation (61) étant prévues pour compenser une inclinaison de la pièce (20) ou de la poutre d'aspiration (21).
  19. Système de transport selon la revendication 18,
    caractérisé en ce que les dispositifs de levage/mouvement transversal (26) agencés des deux côtés de l'espace d'outils, pour poursuivre la modification de position de la pièce, effectuent un mouvement transversal relatif à l'intérieur de l'étape de transport.
  20. Système de transport selon une des revendications précédentes,
    caractérisé en ce que les dispositifs de transport longitudinal (25) sont agencés des deux côtés de l'espace d'outils et effectuent des mouvements longitudinaux différents.
EP95102384A 1994-03-12 1995-02-21 Système de transport Expired - Lifetime EP0672480B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4408449A DE4408449A1 (de) 1994-03-12 1994-03-12 Transportsystem
DE4408449 1994-03-12

Publications (2)

Publication Number Publication Date
EP0672480A1 EP0672480A1 (fr) 1995-09-20
EP0672480B1 true EP0672480B1 (fr) 1997-10-15

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EP95102384A Expired - Lifetime EP0672480B1 (fr) 1994-03-12 1995-02-21 Système de transport

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US (1) US5584205A (fr)
EP (1) EP0672480B1 (fr)
DE (2) DE4408449A1 (fr)
ES (1) ES2110794T3 (fr)

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EP1123761A2 (fr) 2000-02-10 2001-08-16 Müller Weingarten AG Système de transport horizontal
US6712198B2 (en) 2000-09-01 2004-03-30 Müller Weingarten AG Articulated arm transport system
US6715981B1 (en) 1999-03-17 2004-04-06 Müller Weingarten AG Transport system
DE10352982B4 (de) * 2003-11-13 2007-06-21 Müller Weingarten AG Gelenkarmtransportvorrichtung
DE102004013825B4 (de) * 2003-11-13 2011-01-20 Müller Weingarten AG Gelenkarmtransportvorrichtung

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DE19654473A1 (de) * 1996-12-27 1998-07-02 Schuler Pressen Gmbh & Co Mehrstationenpresse
DE19740293A1 (de) * 1997-09-13 1999-03-18 Schuler Pressen Gmbh & Co Transferpressen mit automatischem Toolingwechsel
DE19808974C2 (de) * 1998-03-04 2002-11-28 Erfurt Umformtechnik Gmbh Verfahren und Vorrichtung zum Transportieren von Formteilen zwischen mehreren Stufen einer Umformanlage
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JP3895538B2 (ja) * 2000-11-24 2007-03-22 本田技研工業株式会社 縁曲げ加工装置
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DE59500780D1 (de) 1997-11-20
ES2110794T3 (es) 1998-02-16
US5584205A (en) 1996-12-17
EP0672480A1 (fr) 1995-09-20
DE4408449A1 (de) 1995-09-14

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