EP0383168A2 - Presse à plusieurs étages pour des pièces de grande taille - Google Patents

Presse à plusieurs étages pour des pièces de grande taille Download PDF

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Publication number
EP0383168A2
EP0383168A2 EP90102359A EP90102359A EP0383168A2 EP 0383168 A2 EP0383168 A2 EP 0383168A2 EP 90102359 A EP90102359 A EP 90102359A EP 90102359 A EP90102359 A EP 90102359A EP 0383168 A2 EP0383168 A2 EP 0383168A2
Authority
EP
European Patent Office
Prior art keywords
tool
stages
press
workpieces
cross members
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
EP90102359A
Other languages
German (de)
English (en)
Other versions
EP0383168B1 (fr
EP0383168B2 (fr
EP0383168A3 (fr
Inventor
Erich Harsch
Rainer Reichenbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Mueller Weingarten AG
Mueller Weingarten AG
Original Assignee
Maschinenfabrik Mueller Weingarten AG
Mueller Weingarten AG
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
Family has litigation
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Application filed by Maschinenfabrik Mueller Weingarten AG, Mueller Weingarten AG filed Critical Maschinenfabrik Mueller Weingarten AG
Publication of EP0383168A2 publication Critical patent/EP0383168A2/fr
Publication of EP0383168A3 publication Critical patent/EP0383168A3/fr
Publication of EP0383168B1 publication Critical patent/EP0383168B1/fr
Application granted granted Critical
Publication of EP0383168B2 publication Critical patent/EP0383168B2/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
    • B21D43/057—Devices for exchanging transfer bars or grippers; Idle stages, e.g. exchangeable

Definitions

  • the invention relates to a large-part step press according to the preamble of claim 1.
  • Transport devices for transporting workpieces in a large-part stepping press generally consist of two support rails that run in the transport direction, carry out a horizontal stroke in and against the transport direction and a vertical stroke, which pass through the tool space of the press and on which cross beams with suction cups fastened transversely to the transport direction, Magnetic holders or the like are attached, by means of which the workpieces are transported from one processing stage to the next one.
  • the workflow here is such that all tool stages arranged one behind the other perform a common working stroke with their tools. After opening the two tool halves, the crossbars move with one half a horizontal stroke from a park position or rest position into the tool space and grasp the workpiece with a downward vertical stroke using the suction cups.
  • An upward vertical stroke and a full horizontal stroke convey the workpiece to the next tool stage.
  • the mounting rail again executes a downward vertical stroke and deposits the workpiece.
  • This is followed by an upward vertical stroke and a half downward horizontal stroke into a parking position between the two tool stages.
  • the upper parts of the tool can then be moved down together for the pressing process.
  • the support rails that protrude through the entire large-part step press and are arranged on the side of the tools therefore carry full and half horizontal strokes between two adjacent tool steps for transporting the workpieces and for moving to a rest position and vertical strokes for lifting or lowering the workpieces with the cross-members equipped with suction cups out.
  • the suction cups on the crossbeams are adapted to the respective surface structure of the workpiece to be gripped. This is done when converting the system to another pressed part, the crossbars being replaced with suction cups adapted to the respective parts using the respective tool set.
  • the crossbeams with suction cups Once the crossbeams with suction cups have been installed, they can only transport a workpiece from one tool level to the other tool level in a constant geometric position. This is without disadvantage if this constant position is desired in the individual tool stages.
  • tool sets are used to machine the pressed parts, not specifically are designed for the special press so that the position of the workpieces can vary from tool level to tool level.
  • a workpiece transport that is unchanged in its geometrical position by means of the crossbars equipped with suction pads could not do justice to these differently arranged tool sets, since the workpieces would not be properly inserted into the tool.
  • the position of the pressure bolts of the air cushions must also be taken into account when determining the required geometric position of the workpiece or tool, whereby an uneven transport step between two tool stages can occur.
  • the invention has for its object to avoid the aforementioned disadvantages and to allow a variable position of the workpieces in the individual tool stages.
  • the horizontal feed step or horizontal stroke of the mounting rails or the cross members equipped with suction cups is half a working stage distance, i. H. half the distance between two tool levels.
  • the distance between two adjacent tool stages is referred to as the entire working stage distance or the entire horizontal stroke.
  • the cross-beam's entry path into the tool or the tool's exit path is only a quarter of a working step apart, the cross-beam can, under certain circumstances, come to rest in the tool area with its laterally protruding suction cups, which would impede the closing of the tools. This applies all the more, the wider the respective tool.
  • the discharging crossbeams are in the return of the empty station in the direction of transport on the rails relative to these. The same applies to the crossbeams entering the workpieces when they exit the tool.
  • the crossbeams are shifted relative to the direction of transport on the mounting rails.
  • the distance between the crossbeams to one another is increased in the tool area or reduced in the intermediate storage area, which enables the tools to be closed.
  • this process is repeated in the opposite direction, so that when the workpieces are removed, the original distance, ie the same distance, exists between the crossbeams in order to be able to carry out the transport steps.
  • the movement of the crossbeams on the mounting rails can take place during the transport or return movement of the mounting rails themselves, i. H. a relative movement between the mounting rails and cross-members is generated. This is done using a programmable drive.
  • the above-mentioned relative displaceability between mounting rails and cross members can be omitted when machining smaller pressed parts or with smaller tools.
  • the required displaceability is greatest when machining the maximum largest pressed part, since here the required free space for closing the tools is greatest.
  • the shift drive for the crossbeams is also brought to generate the relative movement, ie for moving the crossbeams on the mounting rails in the staking positions between the press stand and the closed tool.
  • the slide drive is also used as a setup axis. In this position, the crossbeams are set out on the sliding tables on locking pins for tool change.
  • Figures 1 to 6 each show the first three processing stages of a large-part stage press.
  • the step press each has press tables 1 to 3, sliding tables 4 to 6 arranged above with lower tools 7 to 9 fastened thereon.
  • the upper tools 10 to 12 In the upper part of the stage press there are the upper tools 10 to 12, the press rams 13 to 15 and the upper bars 16 to 18.
  • These upper bars 16 to 18 are connected to the press tables 1 to 3 by the press stands 19 to 24, in which the press rams are also located 13 to 15 are performed.
  • a housing 37 there are curves for driving the horizontal and vertical movement of the transport device.
  • Crossbars 38 to 42 are mounted in guides 43, 44 so as to be horizontally displaceable on the mounting rails 25, 26 and are programmably driven by spindles 45, 46 and electric drives 47, 48.
  • the crossbeams 38 to 42 can be uncoupled from the mounting rails 25, 26 by means of couplings 49, 50 and are pinned on the sliding tables 4 to 6 by means of locking bolts 51, 52.
  • Boards 53, 53a for manufacturing the workpieces are fed from conveyor belts 54 and from a board lifter 55 raised to the insertion height and inserted into the lower tools 7, 7a by suction spiders 56, 56a of a loading feeder 57.
  • suction spiders 58, 58a on the cross members 38 to 42.
  • Positions 59 to 59i show the machined workpieces in various work or empty stages.
  • the distance between the crossbeams is the same and corresponds to half the step distance between two processing steps 1, 2 or between two empty steps, or the step distance between processing and empty step.
  • the crossbeams 38 to 42 are shown in the waiting position or parking position between the processing and empty stages, the crossbeams in FIGS two cross beams in the area of the tool level or work level is larger than in the area of the empty level.
  • the between storage stages 61, 61a and 62, 62a as storage for the workpieces in the empty stage have up to five degrees of freedom, which are indicated by the direction of arrows 63 to 67.
  • FIG. 7 When working with two tools per working level, two intermediate storage levels are also provided for the parts storage, as shown in FIG. 7, as shown in the working position.
  • FIG. 8 When working with only one tool per work stage, an intermediate storage stage in the work position and a second one in the park position or rest position is shown in FIG. 8.
  • the double tools per work step or tool step are shown in plan view in FIGS. 3 and 6.
  • template carriers 68, 69, 69a with deposit templates 70, 71, 71a adapted to the workpiece contour these are staked out on frames 72, 73 fastened to the sliding tables 5, 6 and pins 74, 74a, 75 and 75a by moving in the vertical direction and changed with the tool kit.
  • the dash-dotted line with arrows 76, 76a shows the travel curves of the crossbeams when transporting the workpieces from one tool level to the next tool level.
  • the dash-dotted line with arrows 77, 77a shows the travel curve of the crossbeams when returning from the tool level or empty level to the respective waiting position.
  • the dash-dotted line with arrows 78, 78a shows the travel curve of the crossbeams when entering the empty position or the tool position.
  • the invention is not restricted to the exemplary embodiment shown and described. Rather, it also includes all professional developments and modifications without their own inventive content.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Multi-Process Working Machines And Systems (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
EP90102359A 1989-02-15 1990-02-07 Presse à plusieurs étages pour des pièces de grande taille Expired - Lifetime EP0383168B2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3904471 1989-02-15
DE3904471 1989-02-15
DE4001590 1990-01-20
DE4001590A DE4001590A1 (de) 1989-02-15 1990-01-20 Grossteil-stufenpresse

Publications (4)

Publication Number Publication Date
EP0383168A2 true EP0383168A2 (fr) 1990-08-22
EP0383168A3 EP0383168A3 (fr) 1991-05-15
EP0383168B1 EP0383168B1 (fr) 1993-12-15
EP0383168B2 EP0383168B2 (fr) 1997-06-11

Family

ID=25877797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90102359A Expired - Lifetime EP0383168B2 (fr) 1989-02-15 1990-02-07 Presse à plusieurs étages pour des pièces de grande taille

Country Status (2)

Country Link
EP (1) EP0383168B2 (fr)
DE (2) DE4001590A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032340A1 (de) * 1990-10-09 1992-04-16 Erfurt Umformtechnik Gmbh Dreidimensionale transfereinrichtung zum werkstuecktransport in oder zwischen pressen
EP0543198A1 (fr) * 1991-11-08 1993-05-26 Umformtechnik ERFURT GmbH Station de support et de transformation entre les presses d'une ligne de presses de transfert
EP0847818A1 (fr) * 1996-12-14 1998-06-17 Müller Weingarten AG Presse de transfert

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4104810A1 (de) * 1991-02-16 1992-08-20 Schuler Gmbh L Einrichtung zum umsetzen von blechteilen in einer pressenanlage
DE4143099C2 (de) * 1991-12-27 1996-07-11 Erfurt Umformtechnik Gmbh Transporteinrichtung für Blechteile in einer Pressenstraße
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
DE19528002B4 (de) * 1995-07-31 2006-07-13 Müller Weingarten AG Transporteinrichtung für Blechteile in einer Transferpressenlinie
DE19618167C2 (de) * 1996-05-03 1998-07-02 Erfurt Umformtechnik Gmbh Ablagestation für Blechteile zwischen zwei benachbarten Werkzeugstufen einer Transferpressenlinie
DE10009574A1 (de) 2000-02-29 2001-08-30 Mueller Weingarten Maschf Flexible Transporteinrichtung für Pressen
DE102004015739B4 (de) * 2004-03-29 2006-04-13 Müller Weingarten AG Transportvorrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3334021C1 (de) * 1983-09-21 1984-06-28 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Ablage fuer Werkstueckteile in einer im Zwischenstaender vorhandenen sogenannten Leerstufe einer Grossteil-Stufenpresse
GB2134826A (en) * 1983-01-28 1984-08-22 Aida Eng Ltd Transfer device between presses
EP0140189A1 (fr) * 1983-10-04 1985-05-08 L. SCHULER GmbH Dispositif pour amener des coupes en tôle à l'outil d'emboutissage d'une presse à plusieurs étages
EP0155332A1 (fr) * 1984-03-20 1985-09-25 L. SCHULER GmbH Support intermédiaire de pièce dans une presse-transfert
JPS63230238A (ja) * 1987-03-16 1988-09-26 Honda Motor Co Ltd 塑性加工機
EP0283810A2 (fr) * 1987-03-25 1988-09-28 L. SCHULER GmbH Presse transfert

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134826A (en) * 1983-01-28 1984-08-22 Aida Eng Ltd Transfer device between presses
DE3334021C1 (de) * 1983-09-21 1984-06-28 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Ablage fuer Werkstueckteile in einer im Zwischenstaender vorhandenen sogenannten Leerstufe einer Grossteil-Stufenpresse
EP0140189A1 (fr) * 1983-10-04 1985-05-08 L. SCHULER GmbH Dispositif pour amener des coupes en tôle à l'outil d'emboutissage d'une presse à plusieurs étages
EP0155332A1 (fr) * 1984-03-20 1985-09-25 L. SCHULER GmbH Support intermédiaire de pièce dans une presse-transfert
JPS63230238A (ja) * 1987-03-16 1988-09-26 Honda Motor Co Ltd 塑性加工機
EP0283810A2 (fr) * 1987-03-25 1988-09-28 L. SCHULER GmbH Presse transfert

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 13, Nr. 20 (M-785)[3368], 18. Januar 1989; & JP-A-63 230 238 (HONDA MOTOR CO., LTD) 26-09-1988 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032340A1 (de) * 1990-10-09 1992-04-16 Erfurt Umformtechnik Gmbh Dreidimensionale transfereinrichtung zum werkstuecktransport in oder zwischen pressen
EP0543198A1 (fr) * 1991-11-08 1993-05-26 Umformtechnik ERFURT GmbH Station de support et de transformation entre les presses d'une ligne de presses de transfert
EP0847818A1 (fr) * 1996-12-14 1998-06-17 Müller Weingarten AG Presse de transfert

Also Published As

Publication number Publication date
DE4001590A1 (de) 1990-08-16
EP0383168B1 (fr) 1993-12-15
DE59003818D1 (de) 1994-01-27
EP0383168B2 (fr) 1997-06-11
EP0383168A3 (fr) 1991-05-15

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