EP0621093B1 - Train de presses avec dispositif de transfert pour transférer des pièces - Google Patents

Train de presses avec dispositif de transfert pour transférer des pièces Download PDF

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Publication number
EP0621093B1
EP0621093B1 EP94103670A EP94103670A EP0621093B1 EP 0621093 B1 EP0621093 B1 EP 0621093B1 EP 94103670 A EP94103670 A EP 94103670A EP 94103670 A EP94103670 A EP 94103670A EP 0621093 B1 EP0621093 B1 EP 0621093B1
Authority
EP
European Patent Office
Prior art keywords
press
cross
transport
drive
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.)
Expired - Lifetime
Application number
EP94103670A
Other languages
German (de)
English (en)
Other versions
EP0621093A1 (fr
Inventor
Rainer Reichenbach
Erich Harsch
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.)
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
Application filed by Maschinenfabrik Mueller Weingarten AG, Mueller Weingarten AG filed Critical Maschinenfabrik Mueller Weingarten AG
Publication of EP0621093A1 publication Critical patent/EP0621093A1/fr
Application granted granted Critical
Publication of EP0621093B1 publication Critical patent/EP0621093B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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 Press line or large part step press with one Transport device to Transporting workpieces according to the generic term of claim 1.
  • a press line consists of a series of individual presses, their type and number through the range of parts to be produced is determined.
  • a large-part step press is in principle a special case a press line and exists depending on the desired Number of stages from individual presses, via the press stands too are joined together in a fixed bond and by an in Drive direction driven drive shaft driven will.
  • Both for press lines and for large part step presses can the workpieces, for example sheet metal parts, from Processing level to processing level using crossbeams are transported at right angles to the transport direction arranged and stored at their ends in trolleys are.
  • the trolleys are at two in Direction of transport or press longitudinal axis
  • Carrier rails can be moved in and against the transport direction stored (DE 38 24 058 C1).
  • the trolleys are in the direction of transport extending push rods connected to each other.
  • By Moving in and against the transport direction is the Carried out step.
  • the lifting and lowering movement of the Crossbeams are lifted and lowered by lifting them together Carrier rail itself executed.
  • To change the location of the Workpieces are generally between the Work stages an empty stage in which the workpiece is temporarily stored (see DE 41 04 810 A1).
  • such Transport equipment has the disadvantage that per stage two part-specific cross members are required, which a maximum of half a transport step from the respective processing station to the intermediate one Carry out blank and back, one intermediate resting position for the crossbars can be provided.
  • These crossbars must be used Tool change with the sliding tables from the press be pulled out and replaced.
  • the prior art can also be disadvantageous Number of complex and inflexible curves for Implementation of the parts transport control, being large Weights of push rods and mounting rails and others moveable units overcoming large mass forces required.
  • Crossbeams to the individual processing stations be transported.
  • this transport device additional dolly or sledges on the by the Press leading transport rails provided, by means of which the crossbeams move relative to each other can perform at least two degrees of freedom.
  • compensation steps only for part adjustment performed.
  • the movement of the Crossbeams are only relative to each other educated.
  • the invention has for its object the above disadvantages described in the prior art as possible avoid and especially one Press line or large part step press with one Transport device too create which with high economy and extreme Flexibility can work. Thereby the Transport device regardless of the design of a press with successive processing stations.
  • the invention Avoids press line or large part step press first the disadvantages mentioned above.
  • the invention lies there the core idea is that universal mobility both the crossbeams for admission, change of position and Transport of workpieces as well as flexible mobility the press ram can be achieved. This is especially true even if the individual press stages are independent work from each other.
  • a universal mobility of the workpiece receiving and transporting crossbar achieved according to the invention in particular that everyone Crossbeam at least one dolly or Transport carriage is assigned which has its own drive allowed in at least two degrees of freedom, where in particular a horizontal movement of the trolley in and against the transport direction as well as a vertical movement of the trolley for up and down movement of the Crossbeam is provided.
  • these Transport movements can be controlled individually for each crossbeam, so that a drive that is completely independent of time and place each crossbeam made within the press assembly can be.
  • the movements of the Processing stages d. H. e.g. B.
  • the transport device can also be a Have rotating device to rotate the Crossbar around its longitudinal axis and thus one Carry out additional swiveling movement of the workpiece can.
  • a Have rotating device to rotate the Crossbar around its longitudinal axis and thus one Carry out additional swiveling movement of the workpiece can.
  • a crossbar arranged trolley can Requires a desired cross-beam inclination can be set. This results in two more Degrees of freedom of movement.
  • the pivoting movement of the workpiece by means of a rotary drive the crossbeam also serves in particular to change one Oblique position in the tool when entering and removing the Workpiece to have better freedom of movement over the To achieve the upper tool.
  • the crossbars are made up of two lateral transport car of the type described above held.
  • the trolleys are expediently on two mounting rails arranged in the longitudinal axis of the press run and at least two processing stages each connect.
  • the mounting rails can go through the entire press run in one piece.
  • the DIN rails using a separate drive Height-adjustable to accommodate tool changes to lie above the stored upper tool and thus to allow the tool set to be moved out. Before can the cross members by moving above the Tool set to be staked out on this.
  • the upper tool When changing tools, the upper tool is placed on the Lower tool driven and detached from the ram. Subsequently the ram is moved to the top dead center position and the Support rails are with the car and the crossbars booted. It is - as mentioned - advantageous if the crossbars moved laterally over the tools and staked on this, d. H. from the dolly be uncoupled. The cars are in the Stand area moved and the mounting rails as far up driven that the sliding tables with the tools and unplugged cross members from the press. It is also advantageous if the cross members at Can be swiveled to the side when changing over to create additional space and to change tools facilitate.
  • the invention further provides that the entry of Blanks in the first processing station also by means of a crossbar can be made. Because of several Degrees of freedom on the dolly can also be greater Transport steps are carried out, for example, the System to a larger spider or gripper to adapt this area.
  • FIG. 1 to 4 in side view, and Fig. 5 to 7 in front view is a press line, a large part step press or a press group in general in different editing settings.
  • the press assembly initially consists of headers 1 to 4 as well as the respective press stands 9 one behind the other, 9a to 13, 13a.
  • the press stands are on the Press tables 5 to 8 on which the sliding tables 14 to 17 are arranged.
  • the press rams 18 to 21 with associated Upper tools 26 to 29 with the lower tools 22 to 25 interact.
  • Transport trolleys 32, 32a In the longitudinal direction through the individual presses or the Press assembly are mounting rails 31, 31a in height-adjustable slide 30, 30a mounted, which in turn are guided in vertical guides 63, 63a to 67, 67a (Fig. 5).
  • Transport trolleys 32, 32a in and against the transport direction of the workpieces slidably guided.
  • the transport trolleys 32, 32a have in turn vertical guides 33, 33a on which Carriages 34, 34a are vertically displaceably mounted (see Fig. 5).
  • the carriages 34, 34a have pivotable receptacles 35, 35a, in which the crossbars 37 to 41 can be inserted are attached (Fig. 5).
  • the crossbeams are with Transport elements 80, e.g. B. sucker or magnetic elements equipped on which a board 42 or the workpieces 43rd up to 47 can be transported through the press stages.
  • the drive of the trolley 32, 32a takes place via z. B. programmable electric drives or the like, the Drive is synchronized with the press control. Furthermore, the drive of the trolleys 32, 32a for the Crossbeams 37 to 41 electric motors in connection with Pinions, racks or toothed belt pulleys with toothed belts respectively. As an alternative, a linear motor drive be provided. Finally, the drive of the Transport trolleys 32, 32a also mechanically from the individual presses controlled, whereby cam gears, levers, spline shafts, Toothed belts and racks or the like can be provided can.
  • the cross beams 37 to 41 are open Stake out pins 48, 48a to 52, 52a preferably for placing or removing the tools on the Sliding tables 14 to 17 as shown in dashed lines in Fig. 3 also laterally in an approximately horizontal position can be pivoted away. The swinging away takes place outside or to the side of the press or tool set.
  • the energy supply for the drives of the trolleys 32, 32a takes place via a cable drag chain 58, 58a to 62, 62a (see Fig. 2 or 4).
  • Figures 1 and 2 show press rams 18 to 21, the work out of phase with each other. This is with the arrows 93 shown.
  • the plunger 18 hurries to the plunger in FIG. 1 19 a little ahead, while the plunger 20 straight in the lower Dead center lingers and the plunger 21 a downward movement carries out.
  • the trolleys 32, 32a be arranged outside the processing room, they can but are already moving in this direction.
  • the Tappet 18 in Fig. 1 first moved up, the First approach the first transport trolley with cross-beam 37 and the board 42 from the board feed belt to the first Lead processing station 5 (Fig. 2).
  • the press ram 18 can already move downwards (see arrow 93 in Fig. 2).
  • Alike the second crossbar 38 takes over the workpiece from the first processing station 5 and transfers this with a full work step taking advantage of the necessary Degrees of freedom of movement to the second processing station 6.
  • the other cross members 39 to 41 work analogously, whereby the phase shift of the movement of the Press rams 18 to 21 alike from the dolly 32, 32a of the individual cross members. This results in a considerable saving of time.
  • the distance between the top and bottom Boundary lines 91, 92 represent the step distance or the Transport step between the processing stations 5, 6.
  • the center line 90 corresponds to half the step spacing Parking or waiting positions 94 shown there for the Transport trolleys 32, 32a.
  • the curve section 70 shows the retraction of the crossbar 38 into the tool 22 to remove the workpiece 43.
  • the Curve section 71 the workpiece in the tool 23 on Press ram 19 transported.
  • the curve section 72 drives the crossbar 38 back out of the tool 23 out and is when the plunger 19 reaches point 73 is in waiting position 94 between the processing stations 5, 6, d. H. from the collision area with the associated one Tool upper parts 26, 27.
  • To measure 74 offset of the lower or top dead center UT, OT) are the press rams 18 to 21 out of phase with each other.
  • the cross members 37 to 41 run out of phase to each other, z. B. the crossbar 38 in Transport step 71 the cross member 39 by the dimension 75 catches up. This measure must be smaller than the measure of Step distance minus the sheet metal part width.
  • the invention is not based on that shown and described Embodiment limited. Rather, it includes everyone professional training and development within the framework of the inventive idea. In particular, the Invention in both a mechanical and a hydraulic press.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Claims (9)

  1. Train de presses ou presse à étages pour de grandes pièces, comportant un dispositif de transport pour transporter des pièces, des postes de traitement agencés les uns derrière les autres pour la pièce, dans lesquels sont agencés des coulisseaux pouvant être déplacés vers le haut et vers le bas ayant des outils pour déformer les pièces, les pièces étant fixées à des traverses qui peuvent être transportées, grâce à des moyens de transport pouvant être actionnés indépendamment les uns des autres, vers les postes de traitement,
    caractérisé en ce que, à chaque traverse (37 à 41), il est associé, à chaque fois, des deux côtés un chariot de transport (32,32a) qui présente des entraínements indépendants d'autres chariots de transport d'autres traverses dans plusieurs degrés de liberté et, pour effectuer une étape de transport quelconque de la pièce dans et à l'encontre de la direction de transport des pièces, il est prévu un entraínement longitudinal ainsi que, pour effectuer un mouvement de levage vertical de la traverse, un entraínement de levage et, avantageusement, pour effectuer un mouvement rotatif de l'axe longitudinal de la traverse, un entraínement rotatif, et en ce que, aussi bien les coulisseaux de presse (18 à 21), l'un par rapport à l'autre, qu'également les chariots de transport (32,32a) pour les traverses (37 à 41) peuvent être déplacés l'un par rapport à l'autre de façon décalée en phase.
  2. Train de presses ou presse à étages pour de grandes pièces selon la revendication 1,
    caractérisé en ce que les entraínements de levage pour les chariots de transport (32,32a) d'une traverse (37 à 41) peuvent être alimentés de façon différente pour atteindre une position inclinée souhaitée de la traverse.
  3. Train de presses ou presse à étages pour de grandes pièces selon la revendication 1 ou 2,
    caractérisé en ce que des entraínements programmables, synchronisés avec la presse, sont prévus pour l'entraínement du chariot de transport (32,32a).
  4. Train de presses ou presse à étages pour de grandes pièces selon une des revendications précédentes,
    caractérisé en ce que l'entraínement d'un coulisseau de presse hydraulique (18 à 21) et/ou des chariots de transport (32,32a) pour les traverses (37 à 41) est effectué au moyen d'une commande superposée pour atteindre des courses de déplacement spécifiques aux pièces des chariots de transport.
  5. Train de presses ou presse à étages pour de grandes pièces selon une des revendications précédentes 1-4,
    caractérisé en ce que l'entraínement des chariots de transport (32,32a) pour les traverses (37 à 41) est effectué au moyen de moteurs électriques, pignons, crémaillères ou disques à courroie crantée.
  6. Train de presses ou presse à étages pour de grandes pièces selon une des revendications précédentes 1-4,
    caractérisé en ce que l'entraínement des chariots de transport (32,32a) des traverses (37 à 41) est effectué au moyen de moteurs linéaires.
  7. Train de presses ou presse à étages pour de grandes pièces selon une ou plusieurs des revendications précédentes,
    caractérisé en ce que l'entraínement des chariots de transport (32,32a) pour les traverses (37 à 41) est effectué de façon mécaniquement commandée par les presses individuelles par des commandes à cames, des leviers, des arbres cannelés, des courroies crantées et des crémaillères ou analogues.
  8. Train de presses ou presse à étages pour de grandes pièces selon une des revendications précédentes,
    caractérisé en ce que les chariots de transport (32,32a) pour les traverses (37 à 41) sont guidés sur des rails de support (31,31a), qui sont guidés à travers la presse ou le train de presses.
  9. Train de presses ou presse à étages pour de grandes pièces selon la revendication 8,
    caractérisé en ce que les rails de support (31,31a) peuvent être réglés en hauteur par l'intermédiaire de dispositifs de levage séparés ayant des chariots réglables en hauteur (30,30a) ainsi que des guides (63 à 67 ou 63a à 67a).
EP94103670A 1993-03-25 1994-03-10 Train de presses avec dispositif de transfert pour transférer des pièces Expired - Lifetime EP0621093B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4309661A DE4309661A1 (de) 1993-03-25 1993-03-25 Transporteinrichtung zum Transportieren von Werkstücken in einer Pressenstraße, einer Großteil-Stufenpresse oder dergleichen
DE4309661 1993-03-25

Publications (2)

Publication Number Publication Date
EP0621093A1 EP0621093A1 (fr) 1994-10-26
EP0621093B1 true EP0621093B1 (fr) 1998-02-18

Family

ID=6483794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94103670A Expired - Lifetime EP0621093B1 (fr) 1993-03-25 1994-03-10 Train de presses avec dispositif de transfert pour transférer des pièces

Country Status (3)

Country Link
EP (1) EP0621093B1 (fr)
DE (2) DE4309661A1 (fr)
ES (1) ES2115091T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7624614B2 (en) 2004-11-25 2009-12-01 Gudel Group Ag Conveyor for transporting work pieces in a press
DE102014102522B3 (de) * 2014-02-26 2015-07-09 Schuler Pressen Gmbh Transport- und Orientierungssystem zum Transportieren und Orientieren von Werkstücken

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4418417A1 (de) * 1994-05-26 1995-11-30 Schuler Pressen Gmbh & Co Umsetzvorrichtung in einer Umformmaschine, insbesondere einer Transferpresse
DE19831623A1 (de) * 1998-07-15 2000-01-20 Mueller Weingarten Maschf Verfahren zur Steuerung des Antriebs einer Großteilstufenpresse und Vorrichtung zur Durchführung des Verfahrens
DE19935033C2 (de) * 1999-07-26 2003-03-20 Konrad Schnupp Hub-Längs-Förderer
DE10064930A1 (de) 2000-02-10 2001-08-16 Mueller Weingarten Maschf Horizontales Transportsystem
DE10112395B4 (de) * 2001-03-13 2004-07-15 Müller Weingarten AG Vorrichtung zum Transport vom Formteilen
DE10112393B4 (de) * 2001-03-13 2004-07-15 Müller Weingarten AG Vorrichtung zum Transport von Formteilen
DE10117191B4 (de) * 2001-04-05 2006-01-26 Müller Weingarten AG Vorrichtung zum Transport von Formteilen
DE10223897A1 (de) 2002-05-29 2003-12-11 Mueller Weingarten Maschf Werkzeugwechselvorrichtung für Pressen
DE102004015739B4 (de) * 2004-03-29 2006-04-13 Müller Weingarten AG Transportvorrichtung
JP5665198B2 (ja) * 2012-10-10 2015-02-04 アイダエンジニアリング株式会社 クロスバー、クロスバーの交換システム及び方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3843975C1 (fr) * 1988-12-27 1990-06-13 Maschinenfabrik Mueller-Weingarten Ag, 7987 Weingarten, De
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
DE4104810A1 (de) * 1991-02-16 1992-08-20 Schuler Gmbh L Einrichtung zum umsetzen von blechteilen in einer pressenanlage
US5140839A (en) * 1991-06-27 1992-08-25 Hitachi Zosen Clearing, Inc. Cross bar transfer press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7624614B2 (en) 2004-11-25 2009-12-01 Gudel Group Ag Conveyor for transporting work pieces in a press
DE102014102522B3 (de) * 2014-02-26 2015-07-09 Schuler Pressen Gmbh Transport- und Orientierungssystem zum Transportieren und Orientieren von Werkstücken

Also Published As

Publication number Publication date
EP0621093A1 (fr) 1994-10-26
DE59405265D1 (de) 1998-03-26
ES2115091T3 (es) 1998-06-16
DE4309661A1 (de) 1994-12-01

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