EP1060810A2 - Dispositif de transfert - Google Patents

Dispositif de transfert Download PDF

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Publication number
EP1060810A2
EP1060810A2 EP00111139A EP00111139A EP1060810A2 EP 1060810 A2 EP1060810 A2 EP 1060810A2 EP 00111139 A EP00111139 A EP 00111139A EP 00111139 A EP00111139 A EP 00111139A EP 1060810 A2 EP1060810 A2 EP 1060810A2
Authority
EP
European Patent Office
Prior art keywords
drive
transfer device
holding means
transfer
workpiece
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.)
Granted
Application number
EP00111139A
Other languages
German (de)
English (en)
Other versions
EP1060810B1 (fr
EP1060810A3 (fr
Inventor
Hans Hofele
Karl Thudium
Andreas Dangelmayr
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.)
L Schuler GmbH
Original Assignee
L Schuler GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by L Schuler GmbH filed Critical L Schuler GmbH
Publication of EP1060810A2 publication Critical patent/EP1060810A2/fr
Publication of EP1060810A3 publication Critical patent/EP1060810A3/fr
Application granted granted Critical
Publication of EP1060810B1 publication Critical patent/EP1060810B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D43/055—Devices comprising a pair of longitudinally and laterally movable parallel transfer bars
    • 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

Definitions

  • the invention relates to a transfer device the features of the preamble of claim 1.
  • the Transfer device according to the invention serves in particular workpiece transport in forming machines, such as step presses or other machines where workpieces must be passed through several processing stations.
  • Forming machines e.g. large section presses (body presses) usually have a sequence of processing stations, For example, press levels on the workpieces go through one after the other, being on their way in each station undergoes a further transformation, so that The desired end product is created step by step.
  • the total processing time of a workpiece consists of the times required for workpiece forming and the Transportation times together.
  • the productivity of a press system or other machine can be increased if their application, i.e. the number of per unit time manufactured parts is increased. Will be at a press for this purpose increases the number of strokes, i.e. the speed of a main press drive can increase transport times do not remain unchanged, but take accordingly from.
  • Sheet metal parts to be moved in large section presses often relatively large. You can 1m in the direction of transport up to 2m long and across the transport direction over 4m wide his. Together with appropriate workpiece holding devices This results in a significant total mass, which at Transport from tool to tool accelerated and braked must become.
  • the distances to be covered are there in the range of several meters with press systems Clipboards, e.g. at 2m to 3m.
  • the workpiece transport can only be done in a very tight time window, i.e. the transfer movement must be relatively precise the work of the other press system must be coordinated.
  • a transfer device is known from DE 2741808 A1 known for stepping presses, the two are parallel in spacing extending to each other over several stages Has transport rails.
  • the transport rails can be raised and lowered, for which purpose arranged from the end Servo electric jacks are used.
  • a longitudinal movement of the griffin appears through on causes a base frame arranged electric motors that act on racks connected to the gripper rails.
  • a longitudinal movement of the racks is thus on the Transfer gripper rails.
  • DE 4310057 A1 Three-axis transfer device for the transport of workpieces known in stepped presses.
  • For workpiece transport serve two spaced parallel Transfer rails used to pick up and put down the workpieces towards and away from each other. They can be raised and lowered to effect transport as well as movable in the transfer direction.
  • To drive all movements serve electric motors.
  • the transfer step effecting electric motors are on a fixed base frame arranged that outside the processing stations (Forming stages) is arranged.
  • the base frame carries Drive units that act as an output on a linear guide have slidably mounted slides. This is over a connecting rod with the one assigned to it Gripper rail connected so that its longitudinal movement of determines the movement of the slide, regardless of this however, it can be raised and lowered.
  • the ones to be considered for determining the overall dynamics Inert masses also include outside the gripper rails arranged parts, such as. Carriage and Connecting rods used to connect the gripper rails and serve the drive units.
  • a transfer device is known from DE 19506520 A1 known, which is designed as a two-axis transfer.
  • carriages On guide rails, which are parallel and spaced from each other extend through a press system, carriages are longitudinally displaceable stored. Is between two carriages a suction bridge is arranged, which serves a workpiece temporarily record and transport.
  • the Suction cups are assigned to two different groups, the suction bridges of the first group a little run through a different transfer curve than the suction bridges of the second group. They differ in their Longitudinal movement. Accordingly, there are two stationary ones Transfer drive units provided.
  • the first transfer drive unit has a vertically aligned linear guide on that to the direction of leadership in the transfer direction is moved back and forth.
  • One on the linear guide provided slide is connected to a push rod, which drives the suction bridges, that of the concerned Drive unit are assigned.
  • a corresponding Arrangement is for driving the suction bridges of the others Group provided.
  • the transfer drive units must be in addition to the suction bridges and push rods also move the linear guides.
  • the transfer device has a Guide device through which at least two workpiece holding means independently of each other in the transfer direction are slidably mounted.
  • the workpiece holder can be, for example, suction bridges.
  • the leadership facility is parallel in this case by two and at a distance mutually arranged guide rails formed.
  • the The transfer direction then coincides with the longitudinal direction of the rail agree and the one specified by the guide device Path is then a straight line.
  • the Guide rails on which two each have a workpiece holder containing group of workpiece holding means stored are several guide elements can also be provided become.
  • the guide elements can, for example. the stators of linear motors or other drives for included the movement of the rails.
  • the guide device carries at least two drive devices, around the at least two workpiece holding means move independently of each other in the direction of guidance to be able to.
  • the arrangement of the drive devices significant advantages on the guide device for the design of the transfer facility.
  • the drive connection between the drive devices and The workpiece holding means can be extremely short and without horizontal decoupling respectively.
  • E.g. can any connecting rods Linear guides or other devices are omitted, such as they are required for stationary transfer drive units if the guide rail or other Guide device should be adjusted in height. This can take into account the dynamics of the transfer device be improved on the transfer movement.
  • the moving ones inert masses can be minimized.
  • E.g. is a height adjustment of the guide device easily possible.
  • the drive devices for the transfer step are simply taken away by the management facility.
  • the guide rails can move upwards to an unhindered tool change too enable.
  • the otherwise located next to the tools Guide rails then allow sliding tables, on which the tools are stored, from the side Press stations are moved out.
  • the drive devices on or on the guide device enables an unimpeded lifting and lowering stroke when Go through a transfer curve.
  • the drive devices are raised and lowered with the guide device.
  • the workpiece holding means of the first and second group different transfer curves run through.
  • This with a mechanically simple Basic structure of the transfer facility.
  • Both Transfer curves or routes are therefore separate and separate mutually optimizable.
  • the management facility with the ones it supports Drive devices can be used as separate units that are largely independent of the others Conditions on the forming machine can.
  • E.g. includes the invention
  • Transfer device an embodiment in which Carriages are provided on a transfer rail are connected in groups with a push rod.
  • the push rods are at least at one end, for example over a length-adjustable strut with an external fixed point connected. Is in or on the adjustable strut then a drive belonging to the drive device is arranged.
  • the drive device can also be complete be carried by the management facility. It is then no external fixed point is necessary at which the drive device would have to support separately.
  • the Reaction forces of the drive device when accelerating and delay the workpiece holding means arise are first on the management facility and by This, for example, on the press stand or, if lifting units are provided, via which the lifting units on the Transfer press stand.
  • the driving reaction forces this way, you can go straight to the Press stand on and thus derived. Mispositioning due to any different movements between a separate frame for the drives and the Presses are thus avoided.
  • the transfer movement can be from one or more drive units be derived.
  • drive units be derived.
  • the drive units can be particularly suitable points of the guide device are provided. These are the ends, for example.
  • By appropriate distribution of the drive units over the length of the guide rail it is possible to exercise weight at all Suspension points of the guide rail or other guide devices align with each other. Any lifting units are therefore subject to a corresponding load. It is also possible to interrupt the push rods so that the drive groups arise, each have a drive. The synchronization of the drives different drive groups to be moved synchronously then takes place electrically.
  • the workpiece holding means preferably acid spiders, can be rigidly attached to cross members. Preferably however, they are controlled drives about a transverse axis (Tilting axis) can be swiveled and / or moved sideways. So can position during workpiece transport be made.
  • a transverse axis tilting axis
  • Clipboards serve the one or have multiple axes.
  • E.g. can also support workpiece linearly adjustable in one or more directions as well as pivoted about one or more axes and be provided with appropriate drives. This makes possible it a higher-level control device both the Movements of the workpiece holding means, as well as the movements to control the workpiece trays in a targeted and coordinated manner.
  • the desired movement curves can be set done by programming.
  • a press system 1 is schematically illustrated in FIG. 1, which includes two processing stations 3, 4 which follow one another in the transfer direction T. These each belong to press stages with sliding tables 5, 6, on which the lower tool parts, not shown are stored. Each lower tool part is assigned an upper tool part, the lower tool parts each being attached to a plunger which is only shown in fragmentary form for the press station 3.
  • the individual press stages 3, 4 are also symbolized in FIG. 1 on the basis of their press stands 8, 9, 10, which are arranged vertically one behind the other on one side of the press system 1 in the transport direction T.
  • the press stands arranged on the opposite side are only illustrated on the basis of their layouts 11, 12.
  • a transfer device 14 To transport the workpiece through the press system 1 to effect a transfer device 14 is provided, to the two each in the immediate vicinity the press stands 8, 9, 10 and those not shown opposing press stands 11, 12 in the transport direction T extending horizontally through the press system 1 Guide rails 15, 16 belong. On the guide rails 15, 16 carriages 17 are mounted. In pairs hold a suction bridge 18, 19 each. The suction bridges 18, 19 are transverse to the direction of transport T extending beams are formed, of which at corresponding ones Extend the suction cups as workpiece holding means 21. These each form a suction spider for temporary use Picking up and holding sheet metal parts 22, for example body parts.
  • the suction bridges 18, 19 can be rigid be and the carriage 17 immobile with the workpiece holding means connect. If necessary, the workpiece holding means but also swiveling or sliding on the Suction cups 18, 19 can be held.
  • the pivoting or Shifting can be done by controlled drives.
  • the guide rails 15, 16 are of lifting units 23, 24, 25 worn, which are identical to each other and serve the guide rails 15, 16 in the vertical direction V to adjust.
  • Serve on the stands 8, 9, 10 linear guides supported by linear actuator units 26, 27, 28 are adjustable in height.
  • the height adjustment can both serve by overlay with a movement of the suction bridges 18, 19 in the transport direction T to achieve the desired transfer curves K1, K2, as well as the guide rails 15, 16, for example Tool change to move upwards.
  • the transfer curves K1, K2 are not a vertical component contain, it can also be appropriate, correspondingly simple trained lifting drive units 23, 24, 25 only to set a desired working height.
  • the guide rails 15, 16 together form one Guide device 31 for the workpiece holding means 21, the on the suction bridges 18, 19 and the carriage 17 on the guide rails 15, 16 are guided.
  • the workpiece holder 21 are alternately different groups assigned.
  • the suction bridges 18 pass through with their Workpiece holding means 21, the transfer curve K1, while the Workpiece holding means 21, which only on the in Figure 1 represented by a single suction bridge 19 suction bridges are stored, pass through the transfer curve K2.
  • the Carriages 17 of the suction bridges 18 of the first group connected to each other by push rods 32, 33.
  • the push rods 32, 33, 34, 35 are longitudinally displaceable on the Guide rails 15, 16 guided, for example, with the Carriages 17 are connected.
  • the guide rails 15, 16 carry a transfer drive 40 with a first drive device 40a and a second drive device 40b.
  • the transfer drive 40 is by drive units 42, 43, 44 on one each End of the guide rails 15, 16 and, as illustrated in FIG. 2, further drive units 52, 53, 54, 55 am opposite end of each guide rail 15, 16 is formed.
  • All drive units 42 through 55 are geared motors (Servomotors) formed over corresponding Transfer gear one directly onto the push rods 32, 33, 34, 35 generate linear motion to be transmitted.
  • the drive units 42, 52 are the first drive device 40a connected to the push rod 32.
  • the drive units 43, 53 are also the first Drive device 40a with the push rod 33, the drive units 44, 54 of the second drive device 40b with the push rod 34 and the arite drive units 45, 55 also the second drive device 40b with the Push rod 35 connected.
  • On each push rod 32, 33, 34, 35 thus eliminates two drive units, which with the Start and end of each push rod 32 to 35 connected are.
  • the housing of the drive units 42 to 55 are with the guide rails 15, 16 connected and supported thus on this.
  • the guide rails transfer accordingly 15, 16 that of the drive units 42 to 55 acceleration force to be applied to the press stand 8, 9, 10 (and the others not illustrated Press stand).
  • the mass of the guide rail increases due to their inertia, part of the force.
  • the inertial mass of the guide rails 15, 16 thus buffers any force surges from the drive units 42 up to 55 can originate.
  • the position the transfer device 14 also in the transport direction T clearly determined by the press stands 8, 9, 10 what the precision of the transfer movement and the part transfer benefits.
  • the guide rail 15 is in FIGS. 4 and 5 illustrated separately in a sectional view.
  • figure 4 is the section through the drive units 42, 44. These are consistent with the rest Drive units 43, 45, 52, 53, 54, 55 constructed.
  • Servo motors 61 with flanged gear 62 and corresponding Position measuring sensors form the drive source, whose Output 63 in the interior of a gear housing 64 protrudes.
  • the output shafts 63 are here with toothed belt pulleys 66, 67 connected, on which timing belts 68, 69 run. These are illustrated in FIG. 2. They extend into the guide rail 15 and are at a distance to the drive units 44, 42 around a further pulley 71, 72 performed, which is greater than the length of the Transfer step.
  • Driver 73, 74 attached to the respective push rod 32, 34 is connected.
  • a workpiece storage at its upper end Wear 82 As indicated only schematically in FIG storage facilities between two press stands 81 arranged, a workpiece storage at its upper end Wear 82. This is from an adjusting device 83 carried a movement of the workpiece tray 82 in one or several directions and a pivoting of the workpiece storage 82 allowed in one or more directions.
  • the storage device 81 can, if necessary passive, i.e. trained without active adjustment his. If adjustment options are available, i.e.
  • the workpiece holder 82 for example, specifically raised, lowered, in Adjusted transverse direction, moved in transport direction T and can be tilted or swiveled around one or more axes can, are the corresponding rotary actuators, such as the Lifting units 26, 27, 28 and the drive device 40, is subject to a transfer control system that is independent of all axes can control each other. So that's the transfer movement the workpiece holding means 21 not only on the Work of the press system (i.e. the movement of the press ram 7), but also on the movements of the workpiece trays 82 tunable.
  • the press system 1 described so far works as follows:
  • the plunger 7 of the press will not continue illustrated main drive raised and lowered in time.
  • the tools open by opening the tool tops each on the lower part of the tool Put on workpieces, shape them and lift them off again. While the tool tops are moving up, i.e. the Open tools, the transfer units 42, 43, 52, 53 controlled, so that the suction bridges 18 starting from a parking position A in its illustrated in Figure 1 Run position for receiving the workpieces 22.
  • the Lift drive units 26, 27, 28 are controlled in such a way that the branch originating from parking position A the transfer curve K1 results.
  • the Transfer units 44, 45, 54, 55 controlled so that the suction bar 14 out of its parking position B in the position shown in Figure 1 above the arranged here Move storage device 81.
  • the one here Workpiece 22 is to be picked up. Are all workpieces 22 from The suction drive spiders are held, the lifting drive units 26, 27, 28 and the drive units 42 to 55 of the drive device 40 driven so that the upper branches the transfer curves K1 and K2 are run through.
  • the Workpieces 22 are thereby from the tools to the Clipboards and from the clipboards to the tools transported.
  • the workpieces 22 are deposited here, after which the suction bridges 18, 19 again in their respective Reverse parking position A, B.
  • a transfer device 14, in particular for a Press system 1 has a guide device 31 the workpiece holding device belonging to two different groups 21 are mounted to be longitudinally displaceable. The Longitudinal displacement takes place with a drive device 40, which is at least partially from the guide device 31 is worn.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Specific Conveyance Elements (AREA)
  • Seal Device For Vehicle (AREA)
  • Massaging Devices (AREA)
  • Feeding Of Workpieces (AREA)
EP00111139A 1999-06-02 2000-05-24 Dispositif de transfert Expired - Lifetime EP1060810B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19925343A DE19925343A1 (de) 1999-06-02 1999-06-02 Transfereinrichtung
DE19925343 1999-06-02

Publications (3)

Publication Number Publication Date
EP1060810A2 true EP1060810A2 (fr) 2000-12-20
EP1060810A3 EP1060810A3 (fr) 2001-06-27
EP1060810B1 EP1060810B1 (fr) 2005-07-13

Family

ID=7910062

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00111139A Expired - Lifetime EP1060810B1 (fr) 1999-06-02 2000-05-24 Dispositif de transfert

Country Status (5)

Country Link
US (1) US6314786B1 (fr)
EP (1) EP1060810B1 (fr)
AT (1) ATE299410T1 (fr)
BR (1) BR0002177A (fr)
DE (2) DE19925343A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5819200A (en) * 1999-07-14 2001-02-05 Unilever Plc Apparatus for attaching a tag and a thread to a web of filter material
JP3725040B2 (ja) * 2001-04-06 2005-12-07 株式会社小松製作所 トランスファフィーダ
US7128195B2 (en) * 2004-03-22 2006-10-31 Linear Transfer Systems Ltd. Workpiece transfer system for stamping press
DE602005020330D1 (de) * 2004-09-22 2010-05-12 Hallys Corp Übertragungsvorrichtung
WO2006033369A1 (fr) * 2004-09-22 2006-03-30 Hallys Corporation Dispositif de transport
JP2009119580A (ja) * 2007-11-16 2009-06-04 Aida Eng Ltd 搬送装置および大型搬送装置
US7971468B2 (en) * 2008-07-23 2011-07-05 Hms Products Co. Part transfer system and method
JP2011194428A (ja) * 2010-03-18 2011-10-06 Aida Engineering Ltd 搬送装置の破損防止機構およびそれを用いた搬送装置
DE102012110065A1 (de) * 2012-10-22 2014-04-24 Schuler Automation Gmbh & Co. Kg Umformanlage
DE102013220496B4 (de) * 2013-10-11 2015-05-07 Christoph Welle Umformmaschine , insbesondere Presse zum Umformen von Werkstücken
CN108672698B (zh) * 2018-08-01 2024-02-23 苏州倍丰智能科技有限公司 传送清理系统
CN114351091A (zh) * 2021-12-31 2022-04-15 安徽立光电子材料股份有限公司 工件载具的传送装置
CN120815890B (zh) * 2025-09-17 2025-11-28 华友天宇科技（武汉)股份有限公司 一种机耕船用船架折弯装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1077036B (it) 1976-09-17 1985-04-27 Innocenti Santeustacchio Spa Dispositivo per comandare i movimenti di un trasferitore automatico di pezzi in una pressa a stampi multipli
JPH01130827A (ja) * 1987-11-13 1989-05-23 Ishikawajima Harima Heavy Ind Co Ltd トランスファープレス
JP2762162B2 (ja) * 1990-04-19 1998-06-04 本田技研工業株式会社 トランスファープレス機の搬送装置
DE4237313A1 (de) * 1992-11-05 1994-05-11 Schuler Gmbh L Presse mit einer Umsetzeinrichtung für Blechteile
DE4310057A1 (de) 1993-03-27 1994-09-29 Schuler Gmbh L Vorrichtung zum Transfer von Werkstücken durch eine Folge von Bearbeitungsstationen
DE4408449A1 (de) * 1994-03-12 1995-09-14 Mueller Weingarten Maschf Transportsystem
US5632181A (en) * 1995-02-23 1997-05-27 Verson, A Division Of Allied Products Corporation System and method for transferring a work piece in a multi-station press
DE19506520A1 (de) * 1995-02-24 1996-08-29 Schuler Pressen Gmbh & Co Transfervorrichtung
US5842370A (en) * 1996-12-19 1998-12-01 Schuler Pressen Gmbh & Co. Transfer device and multistation presses

Also Published As

Publication number Publication date
DE19925343A1 (de) 2000-12-07
EP1060810B1 (fr) 2005-07-13
DE50010695D1 (de) 2005-08-18
EP1060810A3 (fr) 2001-06-27
ATE299410T1 (de) 2005-07-15
BR0002177A (pt) 2001-01-02
US6314786B1 (en) 2001-11-13

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