EP0850710B1 - Flexibler Mehrachstransfer - Google Patents
Flexibler Mehrachstransfer Download PDFInfo
- Publication number
- EP0850710B1 EP0850710B1 EP97122034A EP97122034A EP0850710B1 EP 0850710 B1 EP0850710 B1 EP 0850710B1 EP 97122034 A EP97122034 A EP 97122034A EP 97122034 A EP97122034 A EP 97122034A EP 0850710 B1 EP0850710 B1 EP 0850710B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crossbeam
- transfer device
- transfer
- drive
- workpieces
- 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
Links
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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
Definitions
- the invention relates to a transfer device for Transport of workpieces from a work station in a processing station following in the processing sequence.
- the invention also relates to a processing device with such transfer facilities.
- a transfer system picks up the workpiece and guides it to the next workstation in the processing sequence and put it there. Gripping or holding means of the The transfer system must then leave the workstation be brought out so as not to hit the workpiece colliding tool.
- the one in the transfer transfer movement to be carried out by the holding means depends on the specific conditions in relation to the Workpiece and tool dependent. Will the multi-station press or the other processing device retooling a new workpiece is usually the same Adjust transfer curve.
- the concrete ones Dimensions and parameters of the to be machined Workpieces at the time of conception and / or erection of the multi-station press not to the last Detail set. Therefore the transfer curves in the can be adjusted afterwards.
- the transfer movement is usually a two-dimensional one Curve consisting of a stroke and a feed component is composed. It may also be required be to swivel the workpieces around transverse axes, if, for example, a different orientation in a drawing step have than in a subsequent press station. In many cases it is useful to choose between several Work stations define different transfer curves.
- From US-A-4 887 446 is a three-axis transfer trained transfer system known. Belong to this two are along the direction of flow through several press stations extending transfer rails. These are arranged on both sides of the tools. On the transfer rails The retention means provided are for temporary use Picking up the workpieces.
- the retention means are from held a longitudinal beam which is longitudinally displaceable on the Transfer rail stored and via electric linear drives is driven controlled in the longitudinal direction. Additional linear units are used to move the transfer rail in the vertical stroke direction as well as that Transfer rails towards and away from each other move (open / close).
- This transfer device which is for all workstations working in unison, only allows lifting, transporting and lowering the workpieces. No other positioning options are provided.
- the driving forces of each axis are from to apply the drives assigned to the relevant axis, which are on the other drives or Support the guides of the other axis directions.
- the clipboards claim a noteworthy Installation space, which affects the effort for the press system overall precipitates.
- a transfer system is known from WO93 / 00185, whose features are the preamble of claim 1 form.
- the transfer system contains individual, between Transfer stations arranged at work stations. Each Transfer device leads transversely to the direction of the parts pass extending suction bridge along a programmable transfer curve. Two are used for this transfer drives holding the suction bridge at their ends.
- Each transfer drive demonstrates one vertically below extending extension on which by means of a Drive unit is telescopic in the stroke direction. To the Extension is also by means of a drive unit Lever mounted about a vertical axis, which over a connecting rod is connected to the end of the suction bridge.
- the acceleration of the suction bridge in Reaction forces occurring in the flow or longitudinal direction are from the vertically telescopic carrier to record.
- scissor and handlebar guides are from practice known to serve tools in space to lead.
- the holding means for example suction cups, from a crossbar held up in turn at both ends by Handlebar gearbox is worn and guided.
- the handlebar gear have handlebar elements that are mainly on train or on pressure and not or only slightly on bending be charged. You're essentially stretched with an offset for space reasons is to be provided.
- Both handlebar gears position the crossbar fixed in two directions with respect to the longitudinal extent the essentially elongated Crossbar are radial directions. This is one controlled parallel guidance possible.
- a handlebar gearbox the position of the crossbar in one further direction, for example in the longitudinal direction of the crossbar firmly. This position can be fixed or be adjustable.
- the drive units attached to the ends of the link elements remote from the carrier means can be articulated, the steering gear operated by the handlebar elements individually or together be moved synchronously or unsynchronously.
- a control unit coordinates these movements so that a desired one Transfer curve is obtained.
- the maximum six possible degrees of freedom of the Holding means do not only allow a translation of the Workpiece but also tilting, turning and swiveling the same around all three spatial directions. So that's one Transfer facility created in the design the workpieces and tools have a high degree of freedom of movement allows. So the transfer system is also for possible ones suitable for future complicated tasks.
- the transfer device can do less than six degrees of freedom, with the Handlebar elements, however, at least in two different Extend directions away from the support means and this at two articulation points located apart from each other wear. Even with such a system, they share loads and forces acting on the crossbar the handlebar elements and drive units.
- the drive units are preferably each stored stationary. Each drive unit thus manages the Drives and managers directly in a base frame from. This results in a rigid mounting and guidance of the Carrier and thus even at high transfer speeds good positioning accuracy.
- the Handlebar elements can be made light and stiff.
- the drive units are preferably linear drives, whose outputs each define an axial direction. Although these differ in principle from each other could result with corresponding axial directions, i.e. parallel directions of movement, the individual Outputs clear geometric relationships that the calculation of the individual control signals of the drive units facilitated by the control device.
- the drive units are preferably electrical Drives where the rotary motion of a servo motor via appropriate gear means in a linear movement is implemented or in which the linear movement by Linear motors is generated directly.
- a processing device such as For example, a multi-station press that is used for the transfer reduce the required times and thus the work cycle to increase the multi-station press. It is it is also possible to schedule the individual press stations to work offset against each other, so that by the phase shift between successive ones Press or work stations have sufficient transfer time is made possible. Conversely, with a press circulation less time is reserved for the transfer, which means also the work cycle of the multi-station press can accelerate.
- Multi-station press 1 has several in a row arranged work or press stations 2, 3, 4, 5, 6 on, on sliding tables 8, 9, 10, 11, 12 dies 14, 15, 16, 17, 18 are held. These form sub-tools, which each have an upper tool 21, 22, 23, 24, 25 is assigned. This is in each case on a plunger 26, 27, 28, 29, 30 held, the one beyond shown eccentric drive or an articulated drive is moved up and down.
- the drive and the Tappets are supported by a not shown Press frame from which in Fig. 1 only schematically and exemplifies part of a stand 31 is.
- the plungers 26 to 30 lead out of phase with one another an up and down movement.
- time and phase offset of the ram movement neighboring plunger is compared to in common mode working plungers achieve a better load distribution.
- Required flywheel masses can be significantly reduced and the multi-station press becomes a total lighter.
- a transfer device 41, 42, 43, 44 arranged along the workpieces a direction of travel T through the multi-station press 1 transport.
- the transfer devices 41 to 44 are identical to each other and below using the example of the transfer device 41.
- This has a crossbar 46 which is transverse to the Passage direction T extends and along a transfer curve K is to be moved.
- On the crossbar is one Suction spider 47 held so that the crossbar 46th together with the suction spider 47 a vacuum operated Holding agent forms.
- the crossbar 46 is at both ends Joint units 48, 49 connected, each to one Handlebar gear 50 (50a, 50b) belong.
- the joint unit 48 is with the crossbar 46 via a hinge joint 51 connected, the hinge axis 52 with the direction of passage T matches.
- At the other end is the Crossbar 46 with the hinge unit 49 rigid or articulated.
- the steering gear 50a puts the Position of the crossbar 46 in the direction of T and in the vertical direction V.
- the steering gear 50b sets also the position of the crossbar 46 in the direction of passage T and in the vertical direction V and additionally in Transverse direction fixed.
- the joint unit 48 is made up of a total of three handlebars or rods 53, 54, 55 carried. These are included one end each with a joint on the joint unit 48 stored, the at least one pivoting movement by one Axis 56 oriented transversely to the direction of travel T allowed.
- the joints of the rods 53, 54 have the Joint axis 56 together.
- The is spaced from it Rod 55 articulated to the joint unit 48.
- the hinge axis 57 of the corresponding joint is to the joint axis 56 parallel and spaced from this.
- Each rod 53, 54, 55 is with its from the joint unit 48 remote ends each with a vertical oriented linear drive unit 61, 62, 63 connected.
- the linear drive units 61, 62, 63 each have one guided on guide rails 65 in the vertical direction Slide 67, 68, 69 on the one with the one in question Rod 53, 54, 55 with at least one transverse axis defining joint is connected.
- a servo motor drives the slide 67 71, the rotational movement of which is not further illustrated Gear means, such as a toothed belt, a screw jack, a rack or the like, converted into a linear movement and on the Carriage 61 is transmitted. Accordingly, the Carriage 69 driven by a servo motor 72, the Rotary movement via a reduction gear 73 and one Toothed belt drive 74 or comparable gear means in a linear movement is implemented using a connecting rod 75 is transferred to the carriage 69.
- Another servo motor 77 is via a reduction gear 78 and a toothed belt 79 and a connecting rod 80 connected to the carriage 68.
- All drive units 61, 62, 63 are stationary stored machine parts or elements, such as stands, Frame or the like, stored.
- rods 83, 84, 85 pivotable about several axes articulated, which belong to the steering gear section 50b.
- pivoting movement about a transverse axis 58 also at least limited swiveling movements by one Vertical axis and / or a longitudinal axis possible.
- the multi-station press 1 described so far works as follows:
- the movement of the press rams 26 to 30 is like this coordinated that the in the direction of flow tappets downstream of part flow the preceding (upstream) Tappets lag by a time offset, which in the essentially corresponds to the time that each transfer device 41 to 44 required to the crossbar 46 of one workstation to the next workstation to pan.
- the top tool begins 21 move upward, the servomotors 71, 72, 77; 96, 98, 101 controlled so that the crossbar 46 swings into the opened tool and the workpiece records.
- the control device not shown controls the servomotors 71, 72, 77; 96, 98, 101 so that the desired transfer curve K is obtained. Swiveling movements of the workpiece around a transverse axis or other more complicated positioning tasks can be done without more to be done during the transfer. As Fig. 5 shows, the transfer device has six degrees of freedom on. If necessary, the number of degrees of freedom can be reduced, the transfer device in question then simplified accordingly. In the simplest embodiment are only two linear axes available, each via pairs of rods on the Attack crossbar 46. This allows two-dimensional Achieve transfer curves K.
- handlebar elements are adjustable in length trained and with their respective, from the Transverse crossbar end fixed over a joint stored.
- the drive units are in the handlebar elements integrated.
- Simplified embodiments can be reduced Have number of drives. E.g. can they Bars 53 and 55 both on carriage 67 or 69 be stored when there is no pivoting of the cross-beam is required. It is also possible to attach the rod 83 the carriage of rod 84 or 85 if none Adjustment in the transverse direction Q is required.
- Transfer device 41 has one of several Bars 53, 54, 55; 83, 84, 85 worn restraint (46, 47) on that of the rods 53, 54, 55; 83, 84, 85 is pivotable and positionable in the room.
- the poles 53, 54, 55; 83, 84, 85 are preferably with linear drive devices 61, 62, 63; 86, 87, 88 connected, the thus act together on the holding means 46, 47.
- Embodiment grab three of the rods 53, 54, 55; 83, 84, 85 at a first hinge point 49 of the retaining means 46, 47. Define with their other ends these rods 83, 84, 85 a triangle.
Description
- Fig. 1
- eine Mehrstationenpresse mit zwischen einzelnen Arbeitsstationen angeordneten Transfereinrichtungen, in schematisierter und ausschnittsweiser Darstellung,
- Fig. 2
- die Mehrstationenpresse nach Fig. 1 in einer aufs äußerste schematisierten Seitenansicht,
- Fig. 3
- die Transfereinrichtung der Mehrstationenpresse nach den Fig. 1 und 2, in einer perspektivischen, schematisierten Ansicht,
- Fig. 4
- die Transfereinrichtung nach Fig. 3 in einer schematisierten Draufsicht, und
- Fig. 5
- die Kinematik der Transfereinrichtung nach den Fig. 3 und 4.
Claims (10)
- Transfereinrichtung (41) für auf einem vorgegebenen Weg zu transportierende Werkstücke, insbesondere für den Transport von Werkstücken entlang mehrerer aufeinanderfolgender Arbeitsstationen (2, 3, 4, 5, 6),mit einem Festhaltemittel (47), das dazu dient, Werkstücke gesteuert aufzunehmen und freizugeben,mit einer Quertraverse (46), die das Festhaltemittel (47) trägt, undmit einem Trägermittel (50), das die Quertraverse (46) trägt und auf einer vorgegebenen Transferkurve (K) führt,mit einem Antriebsmittel, mittels dessen die Quertraverse (46) in wenigstens zwei voneinander unabhängigen Richtungen (V, T) antreibbar ist und das wenigstens eine erste und eine zweite Antriebseinheit (61, 62) aufweist, die voneinander unabhängig ansteuerbar sind, wobeidas Trägermittel (50) von einem ersten und einem zweiten Lenkergetriebe (50a, 50b) gebildet ist, die jeweils zwischen dem Antriebsmittel und der Quertraverse (46) angeordnet sind,daß dadurch gekennzeichnet, die Quertraverse (46) an ihrem einen Ende von einer ersten Gruppe Lenkern oder Stangen (53, 54, 55) gehalten ist, die die Position des einen Endes der Quertraverse (46) in zwei gegebenen Richtungen (T, V) festlegen, und die Quertraverse (46) an ihrem anderen Ende von einer zweiten zweiten Gruppe Lenkern oder Stangen (83, 84, 85) gehalten ist, die die Position des anderen Endes der Quertraverse (46) ebenfalls in den zwei gegebenen Richtungen sowie in einer weiteren Richtung (Q) festlegen.
- Transfereinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß jedes Lenkergetriebe (50a, 50b) wenigstens zwei vorwiegend auf Zug und Druck belastete Lenkerelemente (53, 54; 183, 84, 85) aufweist, die sich in wenigstens zwei voneinander verschiedenen Richtungen von der Quertraverse (46) weg erstrecken und die jeweils mit einem ersten Ende über eine Gelenkeinrichtung (48) mit der Quertraverse (47) verbunden sind, wobei jedem Lenkerelement (53, 54) eine Antriebseinheit (61, 62) zugeordnet ist, mittels derer die Position des zweiten, von dem ersten Ende abliegenden Endes des Lenkerelementes (53, 54) gezielt einstellbar ist.
- Transfereinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß jedes Lenkerelement (53, 54) an seinem zweiten Ende mit der ihm zugeordneten Antriebseinheit (61, 63) jeweils über ein Gelenk verbunden ist.
- Transfereinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Lenkerelemente (83, 84, 85) des Lenkergetriebes (50b) an einem Ende der Quertraverse (46) an einer Anlenkstelle (A) und an dem anderen Ende der Quertraverse (46) an zwei voneinander beabstandeten Anlenkstellen (B, C) mit der Quertraverse (46) in Verbindung stehen, so daß die Anlenkstellen (A, B, C) ein Dreieck festlegen, wobei an einer der Anlenkstellen (A) drei Lenkerelemente (83, 84, 85), an einer anderen der Anlenkstellen (B) zwei Lenkerelemente (53, 54) und an der verbleibenden der Anlenkstellen (C) ein Lenkerelement (55) an die Quertraverse (46) angeschlossen sind.
- Transfereinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Antriebseinheiten (61, 62) jeweils ortsfest gelagert sind.
- Transfereinrichtung nach Anspruch 5, dadurch gekennzeichnet,daß die Antriebseinheiten (61, 62) jeweils Lineareinheiten sind, deren Abtriebe (67, 68) eine von einem Eingangssignal abhängige, definierte Linearbewegung ausführen, unddaß die Lineareinheiten zueinander parallele Arbeitsrichtungen (V) aufweisen und quer zu ihrer Arbeitsrichtung voneinander beabstandet angeordnet sind.
- Transfereinrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die Antriebseinheiten (61, 62) elektrische Direktantriebe sind.
- Bearbeitungseinrichtung (1) zur aufeinanderfolgenden Bearbeitung von Werkstücken in mehreren Schritten, insbesondere Saugerpresse zur Bearbeitung von Blechteilen,mit mehreren hintereinander angeordneten Arbeitsstationen (2, 3, 4, 5, 6), die von den Werkstücken aufeinanderfolgend zu durchlaufen sind, undmit wenigstens einer Transfereinrichtung (41) nach einem oder mehreren der Patentansprüche 1 bis 7.
- Bearbeitungseinrichtung nach Anspruch 8, dadurch gekennzeichnet, daß jeweils zwischen zwei aufeinanderfolgenden Arbeitsstationen (2, 3) eine Transfereinrichtung (41) angeordnet ist, die unabhängig von anderen Transfereinrichtungen (42, 43) der Bearbeitungseinrichtung (1) ansteuerbar ist.
- Bearbeitungseinrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Arbeitsstationen (2, 3, 4, 5, 6) der Bearbeitungseinrichtung (1) zueinander zeitlich versetzt arbeiten.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/770,709 US5899108A (en) | 1996-12-19 | 1996-12-19 | Flexible multi-axis transfer device |
DE19654474A DE19654474A1 (de) | 1996-12-19 | 1996-12-27 | Flexibler Mehrachstransfer |
DE19654474 | 1996-12-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0850710A1 EP0850710A1 (de) | 1998-07-01 |
EP0850710B1 true EP0850710B1 (de) | 2001-10-04 |
Family
ID=26032830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97122034A Expired - Lifetime EP0850710B1 (de) | 1996-12-19 | 1997-12-15 | Flexibler Mehrachstransfer |
Country Status (4)
Country | Link |
---|---|
US (1) | US5899108A (de) |
EP (1) | EP0850710B1 (de) |
DE (2) | DE19654474A1 (de) |
ES (1) | ES2164981T3 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19851745A1 (de) * | 1998-11-10 | 2000-05-11 | Schuler Pressen Gmbh & Co | Transfereinrichtung mit kombiniertem Antrieb |
DE19851743A1 (de) | 1998-11-10 | 2000-05-11 | Schuler Pressen Gmbh & Co | Positioniereinrichtung mit Gewichtsausgleich |
DE19851744A1 (de) * | 1998-11-10 | 2000-05-11 | Schuler Pressen Gmbh & Co | Transport- und Positioniereinrichtung |
US6672448B2 (en) * | 2000-03-10 | 2004-01-06 | Aida Engineering Co., Ltd. | Transfer device |
DE10064155A1 (de) * | 2000-12-22 | 2002-07-11 | Schuler Pressen Gmbh & Co | Bearbeitungsvorrichtung |
DE10064154B4 (de) * | 2000-12-22 | 2004-06-03 | Schuler Pressen Gmbh & Co. Kg | Mehrstufenpresse" |
DE10112393B4 (de) * | 2001-03-13 | 2004-07-15 | Müller Weingarten AG | Vorrichtung zum Transport von Formteilen |
DE10128184B4 (de) * | 2001-06-11 | 2004-05-27 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung zum mehrachsigen Transport von Werkstücken |
DE10128189B4 (de) * | 2001-06-11 | 2004-08-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Transport- und/oder Lagerungsvorrichtung für Werkstücke |
DE10157328A1 (de) * | 2001-11-23 | 2003-06-12 | Schuler Pressen Gmbh & Co | Vorrichtung zum Transport von Werkstücken innerhalb einer Mehrstufenpresse |
TW200505606A (en) * | 2003-05-20 | 2005-02-16 | Ishikawajima Harima Heavy Ind | Panel transporting device |
DE10348643B3 (de) * | 2003-10-15 | 2005-05-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Einrichtung zum Transport von Werkstücken |
CN1938207A (zh) * | 2004-05-10 | 2007-03-28 | 石川岛播磨重工业株式会社 | 面板输送装置 |
KR100868173B1 (ko) | 2006-09-29 | 2008-11-12 | 가부시키가이샤 아이에이치아이 | 패널 반송 장치 |
JP5793109B2 (ja) * | 2012-05-15 | 2015-10-14 | アイダエンジニアリング株式会社 | ワーク搬送装置 |
CN103934714A (zh) * | 2014-05-12 | 2014-07-23 | 昆山勇翔精密机械有限公司 | 一种用于加工长轴类工件的工装夹具 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5874227A (ja) * | 1981-10-27 | 1983-05-04 | Orii Jidoki Seisakusho:Kk | 被加工物の自動送り装置 |
SU1433594A1 (ru) * | 1987-04-06 | 1988-10-30 | Производственное объединение "Новокраматорский машиностроительный завод" | Грейферное подающее устройство к прессу |
DE3905068C2 (de) * | 1989-02-18 | 1999-07-22 | Schuler Pressen Gmbh & Co | Umsetzeinrichtung in einer Transferpresse o. dg. Umformmaschine |
JP2781896B2 (ja) * | 1990-01-23 | 1998-07-30 | 石川島播磨重工業株式会社 | トランスファープレス |
US5006028A (en) * | 1990-05-18 | 1991-04-09 | Jackson Donald T | Cam lift and carry parts transfer apparatus |
US5140839A (en) * | 1991-06-27 | 1992-08-25 | Hitachi Zosen Clearing, Inc. | Cross bar transfer press |
DE4237315A1 (de) * | 1992-11-05 | 1994-05-11 | Schuler Gmbh L | Presse mit einer Umsetzeinrichtung für Blechteile |
-
1996
- 1996-12-19 US US08/770,709 patent/US5899108A/en not_active Expired - Lifetime
- 1996-12-27 DE DE19654474A patent/DE19654474A1/de not_active Withdrawn
-
1997
- 1997-12-15 ES ES97122034T patent/ES2164981T3/es not_active Expired - Lifetime
- 1997-12-15 DE DE59704780T patent/DE59704780D1/de not_active Expired - Lifetime
- 1997-12-15 EP EP97122034A patent/EP0850710B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0850710A1 (de) | 1998-07-01 |
US5899108A (en) | 1999-05-04 |
ES2164981T3 (es) | 2002-03-01 |
DE19654474A1 (de) | 1998-07-02 |
DE59704780D1 (de) | 2001-11-08 |
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