EP0929370B1 - Dispositif pour le transport automatique de pieces sur une machine de formage a etages multiples - Google Patents

Dispositif pour le transport automatique de pieces sur une machine de formage a etages multiples Download PDF

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Publication number
EP0929370B1
EP0929370B1 EP97918875A EP97918875A EP0929370B1 EP 0929370 B1 EP0929370 B1 EP 0929370B1 EP 97918875 A EP97918875 A EP 97918875A EP 97918875 A EP97918875 A EP 97918875A EP 0929370 B1 EP0929370 B1 EP 0929370B1
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EP
European Patent Office
Prior art keywords
tong
pliers
tongs
casing
forming
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
EP97918875A
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German (de)
English (en)
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EP0929370A1 (fr
Inventor
Ulrich Steinhauser
Stefan STÖCKLE
Christoph Pergher
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Hatebur Umformmaschinen AG
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Hatebur Umformmaschinen AG
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Publication of EP0929370A1 publication Critical patent/EP0929370A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K27/00—Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K27/00—Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof
    • B21K27/02—Feeding devices for rods, wire, or strips
    • B21K27/04—Feeding devices for rods, wire, or strips allowing successive working steps

Definitions

  • the present invention relates to a device for the automatic transport of workpieces on a multi-stage, for non-cutting forming of metal parts Forming machine, as in the preamble of the independent Claim 1 is defined (see e.g. DE-A-29 29 800).
  • Such a device known from EP-B-0 206 186 has an upper and a lower, in the work cycle of the forming machine driven and in their forming area in fixed Bear reciprocating cross transport pipe on which an upper or lower pliers box is attached is.
  • the two cross transport tubes are to form one sliding unit connected by a yoke.
  • the Workpieces are captured by means of pairs interacting Plier gripper, one in the upper one Pliers box and the other arranged in the lower pliers box and the opening and closing movement of the through the each interacting pliers grippers formed pliers through control shafts rotatably arranged in the cross transport tubes controlled in the form of camshafts via transmission levers becomes.
  • Such pliers enable in a simple manner the detection of very different in hot forming machines large workpieces.
  • a disadvantage of this device is that for detecting a Workpiece a pliers gripper from below to this becomes a great danger for the gripper there is a collision with falling parts.
  • the pliers grippers are also especially in hot forming machines heavy pollution, for example from lubricants and / or exposed to scale and / or water.
  • In addition are used to control the opening and closing movements of the pliers two camshafts and for the reciprocation of the pliers two cross transport tubes necessary, whereby the movements of the two camshafts and the two transverse transport tubes must be coordinated in each case.
  • the invention has the following object underlying.
  • a multi-stage forming machine without one from below pliers gripper to be brought up to a workpiece to be gripped gets along, being simple and inexpensive it should be ensured that workpieces are very different Diameter or stepped workpieces, such as flange shafts or similar parts with different diameters freely selectable positions can be recorded.
  • the Device should be constructed as simply as possible.
  • the essence of the invention is that in one device for the automatic transport of workpieces a multi-stage, for chipless forming of metal parts serving forming machine attached to a cross transport tube Tong box comprises a tong box base body, on the one or more interchangeable pliers cassettes with pliers, with which a workpiece from above is laterally detectable, are arranged. Every pair of pliers is over a coupling point with it, in the pliers box body arranged, a pliers curve to control the Opening and closing movement of the transfer means having pliers connected, which in turn with one in the cross transport tube rotatably mounted control shaft in operative connection stand.
  • the device according to the invention is also of simple construction, because the pliers on a single, on a cross transport tube attached pliers box are arranged and the opening and closing movement of the pliers from a single control shaft is controlled.
  • the tong stroke through the use of pliers cassettes with pliers with suitable Leverage ratios and / or adjustment or replacement of the pliers curves for the control of the pliers optimally adaptable to different workpieces, so that under other no unnecessarily large pliers movements Need to become.
  • pliers with suitable leverage ratios it is possible to have relatively large workpieces to grasp without the pliers moving away from neighboring ones Forceps cartridges get in the way.
  • too Workpieces with large flanges in places with small ones Diameters are recorded, the pliers then due make a large stroke of the space required for the flange.
  • the replacement of pliers cassettes is the one according to the invention Device simply by moving each pliers over only one coupling point with the associated one, in the pliers box body arranged transmission means connected which is the connection to the control shaft for control the opening and closing movement.
  • the opening and closing movement sequence each pliers individually adjustable.
  • the setting is also user-friendly, since this is not how in the previously known devices, the control shaft the cross transport tube must be removed.
  • This variant has the advantage that the Opening and closing movement of pliers using a Pliers drive shaft controlling pliers curve towards the opening and closing movement rotates, i.e. that no Redirection of movement is necessary. This allows the crowd after the plier curve are kept lower than with the previously known devices, what a faster and allows more precise movement. In addition, the vibration behavior improved.
  • the one between the control shaft and the pliers drive shaft has a motion deflection via a bevel gear no negative influence on the vibration behavior if the speed of rotation of the control shaft in normal operation is constant.
  • the cross transport tube on which the pliers box is attached rotatably arranged, so that by turning the cross transport tube by means of an outside of the forming area arranged transverse transport tube rotating device the pliers box can be raised or lowered is.
  • the pliers cartridges are preferably in a cartridge carrier arranged with the pliers box body over a cassette carrier pivot axis so connected and when lifting the pliers box is controlled so that it is together with the pliers cartridges pivoted in the opposite direction becomes.
  • the device according to the invention the coupling points of the pliers with the respectively assigned transmission means arranged in the pliers box body arranged in the region of the cassette carrier pivot axis. This causes the cassette holder to pivot not automatically a pincer opening or - closing movement.
  • an inventive one Device on an anvil in the tool room forming machine is the pliers box in its lowered position supported on the anvil, being the support is provided by a roller or sliding guide, which ensures that the tongs in the forming stations are positioned exactly vertically. That way it is vertical positioning accuracy of the pliers from the movement mechanism decoupled.
  • a device according to the invention for automatic transport of workpieces is on a four-stage, for non-cutting Forming of metal-forming machine arranged, the machine body 6, a shear station S and an anvil 8 with four forming stations U1, U2, U3, U4 has.
  • the transport device is with an in in the machine body 6 attached cross transport tube bearings 20, 21 rotatable and mounted to move back and forth in the direction of transport Transverse tube 2 provided in the coaxial control shaft 3 is arranged.
  • a pliers box 1 with a pliers box body 10 In the forming area of the forming machine is on the cross transport tube 2 a pliers box 1 with a pliers box body 10, a cassette holder 11 and three pliers cassettes 12a, 12b, 12c attached, the pliers cassette 12a here is not drawn, so that the part of the Cassette holder 11 with fastening thread 125 visible is.
  • the pliers cartridges 12a, 12b, 12c each have pliers with pliers arms 13, 14 and are by means of central cassette fastening screws 121 attached to the cassette holder 11. In the square opening 119 in the cassette holder 11 one can see one end of a tong drive lever 18 in the left and right end positions. Support bolts 152 on the pliers cartridges, e.g.
  • Screws one end face of each rests on a support element 123 of the cassette carrier 11, serve to stabilize the pliers cassettes 12a, 12b, 12c on the cassette holder 11.
  • On support elements 122 on the cassette support 11 are pivot joints 132, 142 of the Pliers arranged according to the desired pliers stroke.
  • the cassette carrier side Ends of the pivot joints 132, 142 and the Support bolts 152 lie on the support elements 122 or 123 and thus form a centering 3-point support for every pliers cassette.
  • the pliers of the pliers cassette 12c are located itself in its closed position and engages Work piece W3 while the pliers of the pliers cassette 12b is in its open position and a workpiece W2 has not yet captured.
  • the opening and closing movement of the pliers is like described in detail below, from the control shaft 3 controlled by an outside the forming area of the Forming machine arranged control shaft drive device 30 is driven.
  • the back and forth movement of the cross transport tube 2 is carried out by means of a transverse transport drive device 4, and by means of a cross transport tube rotating device 5 is the cross transport tube 2 for lifting and lowering the pliers box 1 rotated.
  • the cross transport drive device 4 and the cross transport tube turning device 5 are also outside the forming area the forming machine and more precisely below described.
  • the workflow is generally as follows:
  • the pliers capture their respectively assigned workpieces, are by Transverse displacement of the cross transport tube 2 from a forming station U1, U2, U3 to the adjacent forming station U2, U3, U4 transported and give the workpieces there the forming process freely.
  • the pliers box 1 with the pliers is then raised by turning the cross transport tube 2, the cross transport tube 2 with the pliers box 1 moved back and the pliers box 1 back to the starting position lowered.
  • the three pliers of the pliers cassettes 12a, 12b, 12c are each in their closed position, in which they have three workpieces Detect W1, W2, W3, and shown their open position.
  • Each pair of pliers includes two double-armed levers trained, rotatably suspended on pivot joints 132, 142 Plier arms 13, 14, one end of which is through with pliers shoes 131, 141 provided pliers grippers 130, 140 is formed.
  • the Pliers grippers 130, 140 are over predetermined breaking points 133, 143 connected to the rest of the gun arm 13, 14, so that at a malfunction in the forming process generally only the Forceps grippers 130, 140 cancel and the rest of the device remains intact.
  • the predetermined breaking points 133, 143 are preferably monitored with sensors 134, 144.
  • the swivel joints 132, 142 of each pliers are arranged or the lengths of the two levers of each gun arm 13, 14 are chosen so that the pliers one for the workpiece to be gripped W1, W2, W3 has a suitable pliers stroke.
  • the pliers cartridges 12a, 12b, 12c are shown here with pliers for Workpieces of small, medium or large diameters are suitable are. By changing pliers cartridges, the Transport device of the forming machine during a production changeover easily converted to new workpieces become.
  • the pliers are opened and closed by turning them the tong arms 13, 14 around the rotary joints 132, 142.
  • the rotation of the control shaft 3 convert into a suitable back and forth motion.
  • a spring 136 provides making sure that the guide surface 135 is in constant contact with the guide surface 145 is pressed and the pliers are pretensioned that it has a tendency to close.
  • Fig. 2 it can also be seen that the cassette carrier 11 pivotable about preferably preloaded roller bearings 110 is attached to the pliers box body 10. The purpose this arrangement is in connection with the below 8 and 9 explained.
  • a stamp holder 7 for receiving forming stamps arranged, the pliers for the workpiece transport in reach into the space between punch holder 7 and anvil 8.
  • the one pliers drive shaft 15 with a plier curve 16, a roller lever 17 and a tong drive lever 18 include.
  • the generally even rotation of the Control shaft 3 is on the bevel drive shaft via a bevel gear 150 15 transferred on which the pliers curve 16 is appropriate.
  • the second end of the tong drive lever 18 is via a coupling device 180 rotatably connected to the pliers arm 14 (see. Fig. 4 and 6).
  • the first tong drive lever 18 is from the left in shown in a position in which the associated pliers is closed while the second tong drive lever 18 is shown from the left in a position in which the associated Pliers is open.
  • the pliers curve 16 is through a body in the pliers box existing adjustment opening that can be closed with a cover 162 161 (see Fig. 3) adjustable so that various opening and closing movements and Plier strokes are easily adjustable.
  • the pliers box 1 is provided with a roller 101, with which he is supported on the ruler 80.
  • the vertical Positioning accuracy of the tongs in the forming stations In this way U1, U2, U3, U4 is independent of the accuracy when lowering and moving the pliers box 1 in the direction of transport.
  • Two types of attachment the roller 101 on the pliers box 1 are in connection with 10 and 11 explained.
  • the forceps arm 14 has the coupling device 180 on it facing end a coupling bolt 146 on which a first cubic part 182 is rotatably supported.
  • the coupling device 180 further includes a second cubic part 181, that on a second, approximately perpendicular to the first standing coupling bolt 185, the on the tong drive lever 18 is attached, is rotatably mounted.
  • the two cubic Parts are against one another via sliding surfaces 183, 183 ' rotatable and movable. In this way a transfer is made the movement of the tong drive lever 18 on the Forceps arm 14 even when the cassette holder 11 is pivoted - With the gun arm 14 - relative to the body of the gun box 10- with the pliers drive lever 18 - enables.
  • Changing the pliers cassette can make them different Lever lengths of the gun arm 14 result (shown in dashed lines), and the cubic parts 181, 182 can be twisted and possibly again over two other sliding surfaces be coupled.
  • the tong drive lever 18 At its end opposite the coupling device 180 is the tong drive lever 18 with one of the lever base body extending right angle approach 184 for the Roller lever 17 provided.
  • pliers box 1 is also in one shown from the anvil 8 completely in the position he, for tool change or maintenance work in the tool room, brought.
  • the pliers box 1 is supported by U1, U2, U3, U4 in the embodiment variant shown in FIG a roller rotatably attached to the pliers box base body 10 101 on the ruler 80 attached to the anvil 8, while in the embodiment shown in Fig. 11 the role 101 on a pivotable to the pliers box body 10 Positioning part 103 is attached, which even when raised Forceps box 1 the contact of the roller 101 with the ruler 80 guaranteed.
  • the cross transport drive device 4 for the back and forth movement of the cross transport tube 2 in the direction of arrows X comprises a perpendicular to the transverse transport tube 2 Drive shaft 41, which has two cranks 42, 43 and two Connecting rods 44, 45 one of two to the transverse transport pipe 2 parallel guide rods 46, 47 cross head 40 moved back and forth.
  • the guide rods 46, 47 are by means of Fastening elements 461, 462, 471, 472 on the machine body 6 attached.
  • One end of the cross transport tube 2 is in the crosshead 40 stored so that it can be rotated and axially preloaded connected is. In this way, on the one hand, the Raising and lowering and on the other hand moving back and forth of the pliers box 1 by turning or moving it sideways of the cross transport tube 2 allows.
  • the control shaft 3 is driven here with a control shaft drive device 30, one parallel to the control shaft 3 arranged drive shaft 31.
  • the rotation the drive shaft 31 is via a gear transmission 32 on the Transfer control shaft 3.
  • the cross transport tube rotating device 5 for the rotation of the Cross transport tube 2 comprises two control curves 51, 52 which each have a roller 531, 532 rotatable about an axis 54 Drive lever 53 abuts. Via a pivot pin 55 is a compensating lever 56 hinged to the drive lever 53.
  • the compensating lever 56 has a contact surface 561 in the starting position shown in FIG. 15 by a compensating spring 50 to one on the drive lever 53 existing contact surface 533 is pressed.
  • About one another pivot pin 57 is the compensating lever 56 to the lower end of a coupling rod 58 articulated.
  • the top end the coupling rod 58 is connected to the cross transport tube 2 cuff-type transmission lever 59 arranged around connected, the coupling rod movements on the cross transport tube 2 transmits. This can be done, for example, using a with fluid cylinder controllable press connection between Cross transport tube 2 and transmission lever 59 can be reached, to release the pliers box 1 by loosening the press connection in the completely raised position shown in
  • the pliers box 1 in the lowered position and the tongs are the first three forming stations U1, U2, U3 assigned.
  • the pliers move to the neighboring ones Forming stations U2, U3, U4, i.e. a lateral shift of the cross transport tube 2 to the right
  • how 17 shows the upper end of the coupling rod 58 shifted to the right and in a first phase of movement, until the coupling rod 58 reaches the vertical position has, the pivot pin 57 with the associated end of the Compensation lever 56 down and the contact surface 561 pushed up.
  • this can also compensate for the Lifting or lowering the pliers box 1 by rolling the gear cone arranged on the tong drive shafts 15 of the bevel gear 150 on the on the control shaft 3 arranged gear cones modified pliers opening or pincer closing speed during lifting and lowering the pliers box 1 accordingly can be varied.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Specific Conveyance Elements (AREA)
  • Labeling Devices (AREA)
  • Punching Or Piercing (AREA)
  • Intermediate Stations On Conveyors (AREA)

Claims (13)

  1. Dispositif pour le transport automatique de pièces sur une machine de formage à étages multiples, servant au formage sans enlèvement de copeaux, de pièces métalliques, chaque pièce (W1, W2, W3) étant saisie par des pinces avec doigts de saisie (130, 140) coopérant en paire, à un poste de formage (U1, U2, U3), transportée au poste de formage voisin (U2, U3, U4) où elle est relâchée, avec un tube de transport transversal (2) entraíné à la cadence de travail de la machine de formage et guidé en va et vient, dans leur zone de formage dans des supports fixes, tube sur lequel est fixée une boíte à pinces (1) qui sert au transport des pinces et dans laquelle sont disposés des moyens de transmission qui sont en liaison de fonctionnement d'un côté avec les pinces et de l'autre côté avec un arbre de commande (3) supporté de manière à pouvoir tourner dans le tube de transport transversal (2), caractérisé en ce que la boíte à pinces (1) comprend un corps de base de boíte à pinces (10) sur lequel sont disposées une ou plusieurs cassettes à pince interchangeables (12a, 12b, 12c) avec chacune une pince avec laquelle une pièce (W1, W2, W3) peut être saisie latéralement par le dessus, chaque pince étant reliée via un point d'accouplement (19) aux moyens de transmission lui étant affectés, disposés dans le corps de base de la boíte à pinces (10) et présentant une came de pince (16) pour la commande du mouvement d'ouverture et de fermeture de la pince et la course de la pince étant adaptable aux pièces (W1, W2, W3) par la mise en oeuvre de cassettes à pince (12a, 12b, 12c) avec des pinces ayant des rapports de levier appropriés et/ou par un réglage ou un échange des cames de pince (16).
  2. Dispositif selon la revendication 1, caractérisé en ce que chaque pince comprend deux bras de pince (13, 14) suspendus de manière à pouvoir tourner, en forme de levier à deux bras avec lesdits doigts de pince (130, 140), un des bras de pince (14) pouvant être mis en rotation via le point d'accouplement correspondant (19) par les moyens de transmission correspondants et pivotant conjointement l'autre bras de pince (13) lors d'une rotation via des surfaces de guidage (135, 145) disposées sur les deux bras de pince (13, 14), qui se trouvent en liaison de fonctionnement, les cassettes à pince interchangeables (12a, 12b, 12c) pouvant avoir des pinces présentant des rapports de levier différents mais les mêmes points d'accouplement par la configuration différente des bras de levier et par la disposition différente des articulations de pivotement (132, 142) des bras de pince (13, 14).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les moyens de transmission affectés à une pince comprennent un arbre d'entraínement de pince (15) disposé à angle droit par rapport à l'arbre de commande (3), se trouvant en liaison de fonctionnement avec celui-ci via un couple conique (150), sur lequel est disposé la came de pince (16) avec laquelle on commande le mouvement d'ouverture et de fermeture de la pince via au moins un autre levier dont une extrémité se trouve en liaison de fonctionnement avec la pince ou selon le cas avec ledit bras de pince (14) via le point d'accouplement (19).
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le tube de transport transversal (2) est disposé de manière à pouvoir tourner et la boíte à pinces (1) peut être abaissée ou selon le cas relevée par la mise en rotation du tube de transport transversal (2) au moyen d'un dispositif (5) de mise en rotation du tube de transport transversal disposé à l'extérieur de la zone de formage.
  5. Dispositif selon la revendication 4, caractérisé en ce que les cassettes à pince (12a, 12b, 12c) sont disposées dans un porte-cassettes (11), lequel est relié au corps de base de la boíte à pinces (10) via un axe de pivotement du porte-cassettes (113) de sorte que lors du levage de la boíte à pinces (1), le porte-cassettes (11) avec les cassettes à pince (12a, 12b, 12c) peut pivoter dans le sens opposé.
  6. Dispositif selon la revendication 5, caractérisé en ce qu'est prévue, pour la commande du pivotement du porte-cassettes (11) par rapport au corps de base de la boíte à pinces (10) sur l'axe de commande (3) au moins une came de pivotement (111), un poussoir (112) ou un levier étant disposé entre la came de pivotement (111) et le porte-cassettes (11).
  7. Dispositif selon la revendication 5 ou 6, caractérisé en ce que les points d'accouplement (19) sont disposés dans la zone de l'axe de pivotement du porte-cassettes (113).
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les points d'accouplement sont constitués de dispositifs d'accouplement (180) qui comprennent chacun deux pièces cubiques (181, 182) disposées de manière à pouvoir tourner sur des boulons d'accouplement (146, 185) qui se croisent, lesquelles pièces cubiques réalisent un accouplement via des surfaces de glissement (183, 183') superposées.
  9. Dispositif selon l'une quelconque des revendications 4 à 8 portant sur une machine de formage présentant une enclume (8) dans l'espace à outils, caractérisé en ce que la boíte à pinces (1) en position abaissée s'appuie sur l'enclume (8) et l'appui se fait via un guidage à roulement ou à glissière qui garantit que les pinces sont exactement positionnées dans la direction verticale dans les postes de formage (U1, U2, U3, U4).
  10. Dispositif selon la revendication 9, caractérisé en ce que le guidage à roulement comprend une règle (80) et au moins un galet (101), la règle étant disposée sur l'enclume (8) et le galet (101) ou les galets sur la boíte à pinces (1) ou inversement, le galet (101) ou les galets ou selon le cas la règle (80) étant monté sur le corps de base de la boíte à pinces (10) ou sur une pièce de positionnement (103) pouvant pivoter par rapport à celui-ci qui garantit le contact du galet (101) ou des galets avec la règle (80), même lorsque la boíte à pinces (1) est en position levée.
  11. Dispositif selon l'une quelconque des revendications 1 à 10, caractérisé en ce que une extrémité du tube de transport transversal (2) est placée dans une crosse (40) disposée en dehors de la zone de formage, qui est supportée d'une manière permettant un mouvement alternatif par deux tiges de guidage (46, 47) parallèles au tube de transport transversal (2), de sorte que cette extrémité est reliée à celle-ci de façon à pouvoir tourner et en précontrainte axiale.
  12. Dispositif selon la revendication 11, caractérisé en ce qu'un dispositif d'entraínement de transport transversal (4) pour le mouvement alternatif du tube de transport transversal (2) présente un arbre d'entraínement (41) avec lequel la crosse (40) peut se mouvoir en va et vient via une ou deux manivelles (42, 43) et de manière correspondante via une ou deux bielles (44, 45).
  13. Dispositif selon l'une quelconque des revendications 1 à 12, caractérisé en ce que la machine de formage est une machine de formage à chaud.
EP97918875A 1996-10-03 1997-09-29 Dispositif pour le transport automatique de pieces sur une machine de formage a etages multiples Expired - Lifetime EP0929370B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH241096 1996-10-03
CH241096 1996-10-03
PCT/CH1997/000366 WO1998014289A1 (fr) 1996-10-03 1997-09-29 Dispositif pour le transport automatique de pieces sur une machine de formage a etages multiples

Publications (2)

Publication Number Publication Date
EP0929370A1 EP0929370A1 (fr) 1999-07-21
EP0929370B1 true EP0929370B1 (fr) 2001-05-23

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EP97918875A Expired - Lifetime EP0929370B1 (fr) 1996-10-03 1997-09-29 Dispositif pour le transport automatique de pieces sur une machine de formage a etages multiples

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US (1) US6247578B1 (fr)
EP (1) EP0929370B1 (fr)
JP (1) JP3397327B2 (fr)
KR (1) KR100322945B1 (fr)
CN (1) CN1072045C (fr)
AU (1) AU4293597A (fr)
CZ (1) CZ288949B6 (fr)
DE (1) DE59703614D1 (fr)
EA (1) EA000551B1 (fr)
ES (1) ES2157069T3 (fr)
TW (1) TW378163B (fr)
UA (1) UA49038C2 (fr)
WO (1) WO1998014289A1 (fr)

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Publication number Priority date Publication date Assignee Title
EP1200213B1 (fr) * 1999-07-29 2003-03-05 Hatebur Umformmaschinen AG Dispositif pour produire un mouvement de levage et d'abaissement
TWM458366U (zh) 2012-11-30 2013-08-01 Shimano Kk 驅動裝置、及座墊支柱驅動機構
CN115338303B (zh) * 2022-08-22 2023-08-18 东莞市京优精密机械有限公司 一种龙门型高速冲床及其使用方法

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DE2929800A1 (de) 1977-09-13 1981-02-12 Nedschroef Octrooi Maats Vorrichtung zum transport von bolzen, muttern o.dgl. auf werkzeugmaschinen
ATE39633T1 (de) 1985-06-24 1989-01-15 Hatebur Umformmaschinen Ag Einrichtung zum automatischen transport von werkstuecken an einer mehrstufigen umformmaschine.
US4966028A (en) 1988-11-14 1990-10-30 Kabushiki Kaisha Sakamurakikai Seisakusho Multi-stage cold forging machine
US5713236A (en) 1995-02-08 1998-02-03 The National Machinery Company, Pick and place transfer
JP3037672U (ja) * 1996-11-11 1997-05-20 株式会社阪村機械製作所 多段式圧造成形機の素材移送装置

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CZ111399A3 (cs) 2000-07-12
KR100322945B1 (ko) 2002-10-25
CZ288949B6 (cs) 2001-10-17
KR20000022397A (ko) 2000-04-25
UA49038C2 (uk) 2002-09-16
TW378163B (en) 2000-01-01
DE59703614D1 (de) 2001-06-28
EA199900076A1 (ru) 1999-08-26
AU4293597A (en) 1998-04-24
EA000551B1 (ru) 1999-10-28
US6247578B1 (en) 2001-06-19
CN1072045C (zh) 2001-10-03
CN1228723A (zh) 1999-09-15
JP3397327B2 (ja) 2003-04-14
JP2000507509A (ja) 2000-06-20
WO1998014289A1 (fr) 1998-04-09
EP0929370A1 (fr) 1999-07-21
ES2157069T3 (es) 2001-08-01

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