EP1060810B1 - Transfereinrichtung - Google Patents

Transfereinrichtung Download PDF

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Publication number
EP1060810B1
EP1060810B1 EP00111139A EP00111139A EP1060810B1 EP 1060810 B1 EP1060810 B1 EP 1060810B1 EP 00111139 A EP00111139 A EP 00111139A EP 00111139 A EP00111139 A EP 00111139A EP 1060810 B1 EP1060810 B1 EP 1060810B1
Authority
EP
European Patent Office
Prior art keywords
drive
transfer
transfer feeder
workpiece
feeder according
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
EP00111139A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1060810A3 (de
EP1060810A2 (de
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/de
Publication of EP1060810A3 publication Critical patent/EP1060810A3/de
Application granted granted Critical
Publication of EP1060810B1 publication Critical patent/EP1060810B1/de
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 with the Features of claim 1.
  • the inventive Transfer device is used in particular for workpiece transport in forming machines, such as step presses or other machines where workpieces by several Processing stations must be performed.
  • Forming machines for example, large section presses (body presses) usually have a sequence of workstations, For example, press stages on which the workpieces go through one after another, being on their way in each Station undergo another reshaping, so that gradually the desired end product is created.
  • the total processing time a workpiece is made up of the for the Workpiece forming required times and transport times together.
  • the productivity of a press plant or other machine can be increased if their Application, i. the number of per unit time produced Parts is increased. Will with a press to this Purpose increases the number of strokes, i. the speed of a Pressing the main drive increases transport times not remain unchanged, but they take accordingly from.
  • From DE 2741808 A1 is a transfer device known for progressive presses, the two parallel in the distance extending to each other over several stages Has transport rails.
  • the transport rails can be raised and lowered, including arranged from the end Serve electric motors ago powered screw jack.
  • a longitudinal movement of the gripper rails is through a base frame arranged electric motors causes the act on connected to the gripper rails racks.
  • a longitudinal movement of the racks is thus on the Transfer gripper rails.
  • the superimposed by a Lifting movement with the transfer movement achieved transfer curve is achieved by an electronic sequential circuit, which drives the motors starting from mechanical curves.
  • A1 is a transfer device known, which is designed as Zweiachstransfer.
  • the Sucker bridges are assigned to two different groups, wherein the suction pads of the first group a something go through another transfer curve than the Saugermaschinen the second group. They differ in terms of theirs Longitudinal movement.
  • two are stored stationary Transfer drive units provided.
  • the first transfer drive unit has a vertically oriented linear guide on, that of the direction of leadership in the transfer direction is moved back and forth.
  • One on the linear guide provided carriage is in communication with a push rod, which drives the Saugermaschinen, those of the relevant Drive unit are assigned.
  • a corresponding Arrangement is for driving the Saugermaschinen the other Group provided.
  • the transfer drive units must except the suction pads and push rods also move the linear guides.
  • US-PS 5383348 discloses a transfer device for a press with two facing each other on both sides of the workpieces extending guide rails by lifting units synchronously lifted and lowered.
  • To the Guide rails are stored between carriages each carrying a suction bridge. Every carriage is a horizontal drive assigned individually.
  • the drive motors These drives are from the guide rails carried.
  • the guide rails are divided into segments, the are laterally offset from each other. Thereby overlap the ranges of movement of the individual suction bridges, so that delivered by a sucker bridge and discarded sheet metal part picked up from the other suction bridge can be.
  • the transfer device has a Guide device, by the at least two workpiece holding means independently in the direction of transfer are slidably mounted.
  • the workpiece holding means can be, for example, Saugermaschinen.
  • the management device is in this case by two parallel and by far formed arranged guide rails.
  • the Transfer direction then agrees with the rail length direction match and the predetermined by the guide device Track is then a straight line.
  • the Guide rails where two each a workpiece holding means containing group of workpiece holding means stored are, can also provide multiple guide elements become.
  • the workpiece holding means on a Rail to be fixed, which is longitudinally displaceable in guide elements is stored.
  • the guide elements can, for example. the stators of linear motors or other drives for contain the movement of the rails.
  • the guide device carries at least two drive devices, around the at least two workpiece holding means move independently in the direction of leadership to be able to.
  • the arrangement of the drive devices on the guide device significant advantages for the design of the transfer device.
  • the drive connection between the drive devices and the workpiece holding means can be extremely short and without horizontal decoupling respectively.
  • can use any connecting rods Linear guides or other facilities omitted, such as they are required for stationary mounted transfer drive units are when the guide rail or other Guide device to be adjusted in height.
  • the moving inert masses can be minimized.
  • the drive devices for the transfer step are simply taken away by the management device.
  • the guide rails can be moved upwards To allow for unimpeded tool change enable.
  • the otherwise located next to the tools Guide rails then allow sliding tables, on which the tools are stored, laterally out of the Press stations are moved out.
  • the drive means on or at the guide means allows an unobstructed lifting and lowering stroke when Go through a transfer curve.
  • the drive devices be lifted and lowered with the guide device.
  • the workpiece holding means of the first and second group different transfer curves run through. This at a mechanically simple Basic structure of the transfer device. In this way allows the workpieces to be removed when removing the tools, for example, be moved on other curves than when inserting the workpieces in the tools. Both Transfer curves or paths are thus separate and separate can be optimized from each other.
  • the guiding device with the ones carried by it Drive devices can be used as separate units that are largely independent of the others Conditions are designed on the forming machine can.
  • Transfer device an embodiment in which On a transfer rail carriages are provided, the Groups are each connected to a push rod.
  • the push rods are at least at one end, for example.
  • the drive device can also be complete be worn by the guide device. It is then no external fixed point required more, at which the drive device would have to support separately.
  • the Reaction forces of the drive device when accelerating and delaying the workpiece holding means arise be first on the leadership facility and of this example. On the press stand or, if lifting units are provided, over which the lifting units on the Transfer press stand.
  • the drive reaction forces In this way you will be in the short path directly into the Press stand in and thus derived. incorrect positioning due to possible different movements between a separate frame for the drives and the Presses are thus avoided.
  • the transfer movement may be from one or more drive units be derived.
  • workpiece holding means for example.
  • Sucker bridges the end on corresponding support elements, eg. Carriage are stored, connected to each other via push rods. These are preferably connected directly to the carriage.
  • the drive units can be particularly suitable locations of the guide device are provided. These are, for example, the ends.
  • By appropriate distribution the drive units over the length of the guide rail is it possible to balance the weight at all Suspension points of the guide rail or other guide devices to match. Possible lifting units are therefore subject to a matching burden. It is also possible to interrupt the push rods, so that the drive groups emerge, respectively have a drive. The synchronization of the drives different synchronous to moving drive groups then takes place electrically.
  • the workpiece holding means preferably sour spiders, can be rigidly attached to crossbeams. Preferably however, they are about controlled drives to a transverse axis (Tilting axis) pivotable and / or laterally movable. So can be positioned during workpiece transport be made.
  • a transverse axis tiltable axis
  • the transfer device may include one or more Clipboards (storage facilities) serve, the one or have multiple axes.
  • Clipboards storage facilities
  • the transfer device may include one or more Clipboards (storage facilities) serve, the one or have multiple axes.
  • the setting of desired movement curves can done by programming.
  • FIG. 1 schematically illustrates a press installation 1, to the two in the direction of transfer T consecutive Processing stations 3, 4 belong. These belong each to press stages with sliding tables 5, 6, on those not further shown tool bases or tool shells stored are. Each tool lower part is a tool upper part assigned, with the tool parts in each case one only for the press station 3 fragmentary are shown attached ram.
  • the individual press stages 3, 4 are also shown in FIG. 1 with reference to their press stands 8, 9, 10 symbolizes on one side of the Press plant 1 in the transport direction T in a row are each arranged vertically. The on the opposite side arranged press stands are only based on their Floor plans 11, 12 illustrated.
  • a transfer device 14 is provided, to the two each in the immediate vicinity to the press stands 8, 9, 10 or the not shown opposite press stands 11/12 in the transport direction T horizontally extending through the press plant 1
  • Guide rails 15, 16 belong.
  • carriages 17 are mounted. Pairwise each hold a suction bridge 18, 19.
  • the Saugermaschinen 18, 19 are transversely to the transport direction T extending carrier, of which at corresponding Jibs protrude suction cups as workpiece holding means 21.
  • the suction pads 18, 19 can be rigid be and the carriage 17 immovable with the workpiece holding means connect. If necessary, the workpiece holding means but also pivotable or movable to the Sucker bridges 18, 19 be held. The pivoting or Displacement can be done by controlled drives.
  • the guide rails 15, 16 are of lifting units 23, 24, 25 worn, which are formed equal to each other and serving the guide rails 15, 16 in the vertical direction V to adjust.
  • Serve at the stands 8, 9, 10 mounted linear guides, by Hubantriebsticianen 26, 27, 28 are to be adjusted in height.
  • the height adjustment can serve both by overlaying with a movement of the suction bridges 18, 19 in the transport direction T to achieve desired transfer curves K1, K2, as well as, the guide rails 15, 16, for example.
  • For Tool change to move up.
  • the transfer curves K1, K2 no vertical component may also be appropriate, according to simple trained Hubantriebsticianen 23, 24, 25 only to set a desired working height.
  • the guide rails 15, 16 together form a Guide means 31 for the workpiece holding means 21, the on the suction pads 18, 19 and the carriage 17 the guide rails 15, 16 are guided.
  • the workpiece holding means 21 are alternately different groups assigned.
  • the Saugermaschinen 18 go through with their Workpiece holding means 21, the transfer curve K1, while the Workpiece holding means 21, which on the in Figure 1 only represented by a single suction bridge 19 Saugermaschinen are stored, the transfer curve K2 go through.
  • the Carriage 17 of the sucker bridges 18 of the first group are by push rods 32, 33 connected to each other.
  • Corresponding are the carriage 17 of Saugermaschinen 19 through Push rods 34, 35 connected to each other.
  • the push rods 32, 33, 34, 35 are longitudinally displaceable on the Guide rails 15, 16 guided by, for example, with the Carriage 17 are connected.
  • the guide rails 15, 16 carry a transfer drive 40 with a first drive means 40a and a second drive device 40b.
  • the transfer drive 40 is by drive units 42, 43, 44 at each one End of the guide rails 15, 16 and, as Figure 2 illustrates, further drive units 52, 53, 54, 55 am opposite end of each guide rail 15, 16 is formed.
  • All drive units 42 to 55 are geared motors (Servo motors) formed over the corresponding Transfer gear directly to the push rods 32, 33, 34, 35 generate linear motion to be transmitted.
  • the drive units 42, 52 of the first drive means 40a connected to the push rod 32.
  • the drive units 43, 53 of 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 drive units 45, 55th also the second drive device 40b with the Connecting rod 35 connected.
  • On each push rod 32, 33, 34, 35 thus accounts for two drive units, with the Beginning and the 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 are connected and supported thus off to these. Accordingly, the guide rails transmit 15, 16 of the drive units 42 to 55 applied acceleration force on the press stand 8, 9, 10 (and the others not illustrated Pressing Stand).
  • the mass of the guide rail decreases due to their own inertia a part of the force.
  • the inertial mass of the guide rails 15, 16 thus buffers Any power surges something from the drive units 42nd can come to 55.
  • the position becomes the transfer device 14 also in the transport direction T of the press stands 8, 9, 10 clearly determines what the precision of the transfer movement and part transfer benefits.
  • the lifting units 26, 27, 28 above the guide rails 15, 16 are arranged be. If necessary, however, they can do just as well below the guide rails 15, 16 at the press stands 8, 9, 10 or stored at other suspension points be. It is essential that the guide rails 15, 16, for example. For tool change, to be moved in a height can, when the lateral moving out of the sliding tables from the press plant 1 the passage of the tools allowed under the guide rails 15, 16.
  • the guide rail 15 is shown in FIGS. 4 and 5 separately illustrated in section.
  • the section is guided by the drive units 42, 44. These are consistent with the rest Drive units 43, 45, 52, 53, 54, 55 constructed.
  • servomotors 61 with flanged gear 62 and corresponding Position measuring sensors form the drive source whose Downforce 63 in the interior of a transmission housing 64th protrudes.
  • the output shafts 63 are here with pulleys 66, 67 connected, on which toothed belts 68, 69 run. In Figure 2, these are illustrated. They extend into the guide rail 15 and are at a distance to the drive units 44, 42 by another pulley 71, 72, which is greater than the length of the Transfer step.
  • On the timing belt 68, 69 is a respective Driver 73, 74 attached, with the respective push rod 32, 34 is in communication.
  • each two press stands storage facilities 81 arranged at its upper end a workpiece tray 82 wear. This is from an adjustment 83 carried a movement of the workpiece tray 82 in a or more directions and a pivoting of the workpiece tray 82 allowed in one or more directions.
  • the storage device 81 can also be required passive, i. formed without active adjustment be. If adjustments are available, i.
  • a transfer control assumes that all axes independent can control each other. This is the transfer movement the workpiece holding means 21 not only on the Work of the press plant (i.e., the movement of the press rams 7), but also on the movements of the workpiece trays 82 tunable.
  • the press plant 1 described so far works as follows:
  • the plunger 7 of the press will not continue by one illustrated main drive in time lifted and lowered.
  • the tools open by the tool shells each on the lying on the lower tool part Place workpieces, reshape and lift them off again.
  • the transfer units 42, 43, 52, 53 driven, so that the Saugermaschinen 18 starting out a parking position A in their illustrated in Figure 1 Position for receiving the workpieces 22 run.
  • the Hubantriebsticianen 26, 27, 28 are thereby controlled, that is the outgoing from the parking position A branch the transfer curve K1 results.
  • a transfer device 14, in particular for a Press plant 1 has a guide device 31, on belonging to two different groups workpiece holding means 21 are mounted longitudinally displaceable. The Longitudinal displacement takes place with a drive device 40, at least in part by the guide means 31 worn.

Landscapes

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

Applications Claiming Priority (2)

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

Publications (3)

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

Family

ID=7910062

Family Applications (1)

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

Country Status (5)

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

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001005662A1 (en) * 1999-07-14 2001-01-25 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
WO2006033369A1 (ja) * 2004-09-22 2006-03-30 Hallys Corporation 搬送装置
JP4838136B2 (ja) * 2004-09-22 2011-12-14 株式会社 ハリーズ トランスファー装置
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

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
EP1060810A3 (de) 2001-06-27
DE19925343A1 (de) 2000-12-07
DE50010695D1 (de) 2005-08-18
EP1060810A2 (de) 2000-12-20
US6314786B1 (en) 2001-11-13
ATE299410T1 (de) 2005-07-15
BR0002177A (pt) 2001-01-02

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