EP0773078B1 - Presse à étages transformable - Google Patents

Presse à étages transformable Download PDF

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Publication number
EP0773078B1
EP0773078B1 EP96117995A EP96117995A EP0773078B1 EP 0773078 B1 EP0773078 B1 EP 0773078B1 EP 96117995 A EP96117995 A EP 96117995A EP 96117995 A EP96117995 A EP 96117995A EP 0773078 B1 EP0773078 B1 EP 0773078B1
Authority
EP
European Patent Office
Prior art keywords
transporting
arrangement
carrier means
rail
rails
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
EP96117995A
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German (de)
English (en)
Other versions
EP0773078A1 (fr
Inventor
Hans Hofele
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 EP0773078A1 publication Critical patent/EP0773078A1/fr
Application granted granted Critical
Publication of EP0773078B1 publication Critical patent/EP0773078B1/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5124—Plural diverse manufacturing apparatus including means for metal shaping or assembling with means to feed work intermittently from one tool station to another
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T483/00—Tool changing
    • Y10T483/10—Process

Definitions

  • the invention relates to a multi-station press several, one after the other according to a processing sequence arranged press stations.
  • DE 38 43 975 C1 is a transport device known for larger workpieces in a step press.
  • the Step press has several, along a transport direction arranged and spaced-apart press stations in which are intended to hold the workpieces Matrices or lower tools on sliding tables are arranged interchangeably.
  • Above the sliding tables are vertically up and down movable plunger provided are driven in unison.
  • Each pestle is with one Upper tool provided and defined with that on the sliding table arranged lower tool a press station.
  • a cross-beam transfer device is provided, the has two mutually parallel transport rails.
  • the Transport rails are on both sides of the press stations over the entire length of the step press and connected to each other by cross beams.
  • the gripper rail parts are included the grippers, which with the respective workpiece in To be engaged during the continuous sections the gripper rails only as a carrier for the Serve gripper rail parts.
  • the outer parts are in Can be moved telescopically with respect to the respective middle section, being used to drive the same piston-cylinder units are provided.
  • a transfer device is known from DE 43 09 643 A1 for workpiece transport, which is a three-axis transfer is trained.
  • the conversion device is on a press with several press stations and has two spaced parallel across the entire length the transport rails extending on the press. This are moved synchronously in and against the transport direction and if necessary via appropriate lifting devices raised or lowered.
  • the transport rails towards and away from each other.
  • Carrier rails are carried by the transport rails, which provide gripping devices for the workpieces are.
  • Multi-station press with a transfer device create when both machining workpieces serving tools as well as for transporting the workpieces serving gripper means provided on the transfer device are automatically exchangeable in a simple manner, without additional space for moving the transport rails or to move the sliding tables out to the side to require. It is also an object of the invention a procedure for changing the gripper means To create tool changes that meet the requirements mentioned enough.
  • Two on the transport rail adjacent carrier means go through a longitudinal stroke during their transfer movement, the their own length plus the distance to corresponds to the next adjacent carrier.
  • Both carriers can be on the sliding table in one Area to be accommodated, its in the direction of transport measured longitudinal extent does not exceed the stroke length and preferably a maximum of one Carrier. This can be due in particular to overlapping Arrangement of the carrier means can be achieved by this e.g. stacked one above the other.
  • Such Storage of the carrier means enables the inclusion of additional carriers, which are then required in particular if clipboards are between the sliding tables are arranged.
  • Each transport rail then carries two carriers per sliding table.
  • the receiving device for example, also rigid can be, is preferably pivotable on the Sliding table mounted. This makes it possible to use the receiving device after delivery of the vehicle swing away sideways so that the gripper means from the Tool area and the carrier means from the range of motion the transport rail can be moved out.
  • the from the transport rails of the drive unit and the transfer unit formed by the gripper means is preferred trained as a three-axis transfer, in which the Transport rails parallel to each other and parallel to the transport direction are arranged and in the transport direction, i.e. horizontally, vertically and towards each other and can be moved away from each other.
  • the three-axis transfer is the transfer of the Carrier means held on the corresponding rails Pick up on the sliding tables on special simple way using the three-axis transfer to Introducing and hanging the carrier means in the receiving means without the aid of additional drive units possible.
  • Fig. 1 is a multi-station press 1 in the cutout shown, the five along a transport direction T press stations 11, 12 arranged one behind the other 13, 14, 15.
  • the multi-station press 1 is included only shown in sections and their machine frame is indicated on the basis of press stands 17 which on both sides of that determined by the transport direction T. Workpiece transport path set up in a row are.
  • the press stands 17 are additional each marked with a letter a to f, the press stands arranged to the right of the transport route 17d, 17e, 17f only by their floor plans are indicated.
  • the one illustrated by the press stand 17 Among other things, the machine frame carries in synchronism movable up and down, not shown Ram, each of which press station 11, 12, 13, 14, 15 one is assigned to each.
  • Such a plunger 19 is For example, indicated in Fig. 3 for the press station 11.
  • the press stations 11, 12, 13, 14, 15 each in areas of Transport route T arranged, in which no press stands 17 stand.
  • the press station 11 between the press stands 17a, 17b, 17d, 17e arranged while the press stations 12, 13 between the press stands 17b, 17c, 17e, 17f are arranged.
  • the press station 11 has a sliding table 21 on, the stationary and to accommodate a below of the plunger 19 arranged lower tool 22 is. On the towards the lower tool 22 and from this moving plunger 19 is an upper tool 23 hung. Coupling means 25 are used for this purpose, if necessary are solvable.
  • the lower tools are the Press stations 12, 13 on a common sliding table 31 and the lower tools of the press stations 14, 15 a sliding table 32 arranged (Fig. 1).
  • the sliding tables 21, 31, 32 allow a lateral extension the press area, for example with the sliding table connected lower tool 22 and the one placed thereon To be able to replace the upper tool 23.
  • a transfer device 35 For transporting workpieces along the transport direction T through all press stations 11, 12, 13, 14, 15, a transfer device 35 is provided, which as Triaxial transfer is formed.
  • the transfer facility a pair points to each other near the stand entire length of the multi-station press 1 extending Transport rails 41, 42, which are parallel to the transport direction T are arranged.
  • the transport rails 41, 42 are arranged parallel to one another and via a Drive device 45 both in the direction of transport T matching X direction as well as in the vertically and transversely to the transport direction T.
  • the vertical is as the Y direction and the transverse direction is referred to as the Z direction.
  • the transport device 45 contains for the transport rails 41, 42 one end with the transport rail 41, 42 connected linear drive 47, which can be controlled separately is and the transport rails, regardless of their Stroke position or their distance from each other, a longitudinal movement can give in and against the X direction.
  • the transport device 45 also include Drive units 49a, 49b, with the transport rails 41, 42 are connected via linear guides.
  • the Drive units 49a, 49b are so-called lock boxes trained and adjust the transport rails 41, 42 in their distance from each other (Z direction) and in their Height (Y direction).
  • the lock boxes 49a, 49b are in the Stand area arranged where there are no sliding tables anyway are provided. There are clipboard positions above the lock boxes intended for the workpieces. this applies also for the space between the press stations 11 and 12, a workpiece storage position is also provided here.
  • the transport rails 41, 42 are with carrier rails 51 releasably connected with itself from the transport rail 41, 42 away grippers 53 are provided.
  • the Grippers 53 extend essentially along the Z direction and can be done by a specific lateral movement of the respective transport rail 41, 42 with that on the respective lower tool, for example the lower tool 22 (FIG. 3), workpiece lying in and out of engagement become.
  • the carrier rails 51 are flat on the Transport rails 41, 42 lying, stiffened carrier bodies.
  • the carrier rail 51 lies with its flat underside 55 on the top of the support rail 41 and engages with their side edges 56, 57 the flanks of the Transport rail 41.
  • the side edges 56, 57 at least carry an inner groove 59, 60 into each end corresponding, firmly connected to the transport rail 41 Web 61 can intervene.
  • On her other face is the carrier rail 51 with a locking device 63 provided that the support rail 51 by means of a Locking bolt 64 fixed on the transport rail 41 locked.
  • the carrier rail 51 with positive couplings 65, 66 provided with a on the respective sliding table On its side remote from the grippers 53 the carrier rail 51 with positive couplings 65, 66 provided with a on the respective sliding table,
  • the sliding table 22 provided receiving device 69 can optionally be coupled.
  • Each sliding table is on both sides with such a recording device 69 provided, because of the symmetry of the multi-station press 1 to a along and vertically extending plane of symmetry 70 in FIG. 3 only which, seen against the direction of transport T, on the right lying side of the press station 11 is shown.
  • the Receiving device 69 has two parallel spacings mutually arranged pivoting levers 72a, 72b which by means of a pneumatic swivel device 73 synchronously to each other in a first storage position shown in FIG. 3 and in a second, shown in Fig. 4, Recording position can be pivoted.
  • the swivel levers For this purpose, 72a, 72b are mounted in a curve guide 74.
  • the curve guide 74 has 72 for each pivot lever a guide groove 74a in which two pins 74b, 74c to run.
  • the guide groove is in a straight, extending outward and into a circular arc Section divided. This leads the Swivel lever 72 a combined lift-swivel or Swivel lowering movement.
  • the receiving device formed by the pivot levers 72a, 72b 69 has two in the working position one above the other arranged receiving points for support rails 51 on, by corresponding to the couplings 65, 66 of the Carrier rails 51 matching, complementary couplings 75, 76 are formed.
  • the carrier rail 51 is with their Couplings 65, 66 can be connected to the receiving device 69, by their couplings 65, 66 in the complementary Couplings 75, 76 hooked in and positively is connected to them.
  • a first step shown in FIG the plunger 19 to its uppermost position driven and the transport rail 41 is set so that a first, on the receiving device 69 of the sliding table 21 support rail 51 to be deposited in a defined Starting position is.
  • the carrier rail is in this 51 in the press station 11.
  • the transport rail 41 After loosening the locking bolt shown in Fig. 2 64, the transport rail 41 performs a short longitudinal movement in the X direction, whereby the web 61 from the Grooves 59, 60 comes out and the support rail 51 is released becomes.
  • the transport rail 41 is removed from its in Fig. 5 position as shown in Fig. 6 by a thick solid arrow is shown, lowered and one complete, by the distance between two consecutive Press stations 12, 13 defined stroke width S in Move the transport direction T (X direction) until the carrier rail 51 just below that already with the receiving device 69 connected upper support rail 51 in Area of the press station 11 is.
  • the transport rail 41 a coupling movement indicated by an arrow 80, through which the lower support rail 51 is positively connected to the Recording device 69 is coupled.
  • a short, directed against the transport direction T and by a Arrow 81 is illustrated as the release move Fig. 2 is indicated, a separation of the transport rail 41 brought about by the carrier rail 51. That state is in Fig. 8 looking in the opposite direction of transport T illustrates.
  • the storage of the carrier rails 51 of the transport rail 42 at corresponding reception facilities takes place in accordingly simultaneously and synchronously.
  • a multi-station press 1 there is a three-axis transfer provided with two transport rails 41, 42 on which support rails 51 are placed.
  • the support rails 51 carry grippers 53 for the workpieces.
  • the transport rail 41 is first moved so that a first carrier rail 51 connected to it on the Receiving device 69 sets. Then the transport rail 41 separated from the support rail 51 and so moved that she had a second one, still connected to her Carrier rail 51 leads to the receiving device 69.
  • the receiving device 69 is designed so that it second carrier rail 51 in the immediate vicinity the first support rail 51 receives, both of them Carrier rails 51 overlap and ideally side to side Side are spaced from each other. The receiving device 69 is then pivoted away to the side. The placement of the carrier rails 51 on the receiving device 69 takes place without the aid of between the transport rail 41 and the drive rail 51 acting drive means, making the construction simple and that Weight of the entire device is comparatively low can be held. This enables good dynamics of three-axis transfer with moderate drive power.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multi-Process Working Machines And Systems (AREA)
  • Press Drives And Press Lines (AREA)
  • Specific Conveyance Elements (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Claims (16)

  1. Presse à stations multiples (1) comprenant plusieurs stations de presse (11, 12, 13, 14, 15) disposées l'une à la suite de l'autre d'une façon qui correspond à une série d'usinages,
    des tables à translation (21, 31, 32) associées aux stations de presse (11, 12, 13, 14, 15),
    un dispositif de transfert (35) prévu pour le transport de pièces entre les stations de presse (11, 12, 13, 14, 15) dans une direction de transport (T), le dispositif de transfert (35) comportant au moins deux barres de transport (41, 42),
    un dispositif d'entraínement (45) au moyen duquel les barres de transport (41, 42) peuvent être entraínées de manière qu'elles décrivent un mouvement de transfert,
    des moyens porteurs (51) qui sont reliés aux barres de transport (41, 42) de façon séparable, à distance les uns des autres dans l'espace, et qui sont pourvus de moyens preneurs (53),
    au moins un dispositif de préhension (69) ménagé sur la table à translation (21), pour s'accoupler aux moyens porteurs (51), qui est agencé pour maintenir au moins deux moyens porteurs (51) distincts qui sont associés à la même barre de transport (41 ou 42) dans une disposition mutuelle dans l'espace dans laquelle ils présentent un espacement mutuel sensiblement réduit par rapport à l'espacement sur les barres de transport (41, 42).
  2. Presse à stations multiples selon la revendication 1, caractérisée en ce que le dispositif de préhension (69) est disposé de manière que les moyens porteurs (51) portés par le dispositif de préhension (69) se chevauchent au moins par segments dans la direction de transport (T).
  3. Presse à stations multiples selon la revendication 1, caractérisée en ce que le dispositif de préhension (69) est réalisé de manière que les moyens porteurs (51) saisis par ce dispositif soient maintenus parallèlement entre eux, les uns à côté ou au-dessus des autres.
  4. Presse à stations multiples selon la revendication 1, caractérisée en ce que les moyens porteurs (51) comportent chacun une hauteur qui est plus petite que la hauteur de la barre de transport (41, 42).
  5. Presse à stations multiples selon la revendication 1, caractérisée en ce que le moyen porteur (51) ne comporte pas de moyens d'entraínement pour le réglage longitudinal par rapport à la barre de transport (41, 42).
  6. Presse à stations multiples selon la revendication 1, caractérisée en ce que le moyen porteur (51) est fixé à la barre de transport (41, 42) par un moyen d'accouplement (59, 60, 61, 63) à liaison par sûreté de forme, et qui peut être mis en prise et hors de prise par un déplacement relatif de la barre de transport (41, 42) par rapport à la barre porteuse (51).
  7. Presse à stations multiples selon la revendication 1, caractérisée en ce que le moyen porteur (51) peut être bloqué sur la barre de transport (41, 42) au moyen d'un dispositif de verrouillage (63).
  8. Presse à stations multiples selon la revendication 1, caractérisée en ce que le dispositif de préhension (69) peut être accouplé au moyen porteur (51) par une liaison par sûreté de forme.
  9. Presse à stations multiples selon la revendication 8, caractérisée en ce que le moyen porteur (51) est maintenu en position fixe par rapport à la direction de transport (T) par la liaison par sûreté de forme avec le dispositif de préhension (69).
  10. Presse à stations multiples selon la revendication 7 ou 8, caractérisée en ce que le dispositif de verrouillage (59, 60, 61, 63) qui agit entre le moyen porteur (51) et la barre de transport (41, 42) est dans une position de déverrouillage lorsque le moyen porteur (51) est relié au dispositif de préhension (69) par une liaison par sûreté de forme.
  11. Presse à stations multiples selon la revendication 1, caractérisée en ce que le dispositif de préhension (69) est monté sur la table à translation (21), au moyen d'un dispositif de pivotement (74), de façon à pouvoir pivoter autour d'un axe s'étendant parallèlement à la direction de transport (T), et à pouvoir se déplacer en translation dans les directions transversale et verticale.
  12. Presse à stations multiples selon la revendication 11, caractérisée en ce que le dispositif de pivotement (74) est configuré de telle manière que la barre de transport (41, 42) peut être placée dans une première position de pivotement dans laquelle le moyen porteur (51) peut être mis en prise et hors de prise avec le dispositif de préhension (69), et dans une deuxième position de pivotement dans laquelle la barre de transport (41, 42) peut être déplacée dans la direction verticale sans obstacle.
  13. Presse à stations multiples selon la revendication 1, caractérisée en ce que les barres (41, 42) sont agencées dans un plan commun le long de la direction de transport (T) et peuvent être déplacées au moins dans la direction de transport (T) ainsi que perpendiculairement à ce plan au moyen du dispositif d'entraínement (45).
  14. Presse à stations multiples selon la revendication 13, caractérisée en ce que les barres de transport (41, 42) peuvent en outre être déplacées dans le sens qui les rapproche et dans le sens qui les éloigne l'une de l'autre.
  15. Presse à stations multiples selon la revendication 14, caractérisée en ce que le dispositif d'entraínement (45) comprend une unité distincte (47) pour le déplacement des barres de transport (41, 42) dans la direction de transport (T) et au moins une unité d'entraínement (49) qui en est distincte, pour imprimer aux barres de transport (41, 42) un mouvement d'élévation et d'abaissement ainsi qu'un mouvement d'ouverture et de fermeture.
  16. Procédé pour changer des outils (22, 23) et des moyens preneurs (53) dans des presses à stations multiples selon l'une des revendications 1 à 15 équipées de tables à translation (21, 31, 32) et d'un dispositif (35) de transfert de pièces, dans lesquelles le dispositif (35) de transfert de pièces comprend des barres de transport (41, 42) qui sont reliées respectivement de façon séparable à des moyens porteurs (51) distincts les uns des autres, qui portent des moyens preneurs (53),
       dans lequel un dispositif de préhension (69) prévu sur la table à translation (21) est amené à la table à translation (21) dans un mouvement orienté latéralement par rapport à une direction de transport (T) définie par le flux de pièces,
       dans lequel le moyen porteur (51) est amené à une zone de préhension du dispositif de préhension (69) et y est accouplé par un mouvement de la barre de transport (41),
       dans lequel la barre de transport (41) est détachée du moyen porteur (41) qui, maintenant, est porté par le dispositif de préhension (69),
       dans lequel un autre moyen porteur (51) est amené par un autre mouvement de la barre de transport (41) à une autre zone de préhension du dispositif de préhension (69) qui est adjacente à l'autre zone de préhension et y est accouplée,
       dans lequel la barre de transport (41) est détachée du dernier moyen porteur (51) qui est maintenant porté par le dispositif de préhension (69),
       dans lequel le dispositif de préhension (69) est éloigné de la table à translation (21),
       dans lequel la table à translation (21) qui porte l'outil (22, 23) et les moyens porteurs (51) est évacuée latéralement de la zone de travail de l'installation de presse.
EP96117995A 1995-11-13 1996-11-09 Presse à étages transformable Expired - Lifetime EP0773078B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19542203A DE19542203A1 (de) 1995-11-13 1995-11-13 Umrüstbare Mehrstationenpresse
DE19542203 1995-11-13

Publications (2)

Publication Number Publication Date
EP0773078A1 EP0773078A1 (fr) 1997-05-14
EP0773078B1 true EP0773078B1 (fr) 2002-04-10

Family

ID=7777299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96117995A Expired - Lifetime EP0773078B1 (fr) 1995-11-13 1996-11-09 Presse à étages transformable

Country Status (5)

Country Link
US (2) US5771561A (fr)
EP (1) EP0773078B1 (fr)
CZ (1) CZ334596A3 (fr)
DE (2) DE19542203A1 (fr)
ES (1) ES2172619T3 (fr)

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DE10045401A1 (de) * 2000-09-14 2002-03-28 Kolbus Gmbh & Co Kg Verfahren und Vorrichtung zum Überführen von Buchblocks in ein Transportmittel einer Buchbindemaschine
DE10223897A1 (de) * 2002-05-29 2003-12-11 Mueller Weingarten Maschf Werkzeugwechselvorrichtung für Pressen
DE102004005046B4 (de) * 2004-01-30 2008-01-24 Müller Weingarten AG Transportvorrichtung für Werkstücke in Pressen
US7128195B2 (en) * 2004-03-22 2006-10-31 Linear Transfer Systems Ltd. Workpiece transfer system for stamping press
JP6768499B2 (ja) * 2016-12-28 2020-10-14 コマツ産機株式会社 プレス装置およびプレス装置の制御方法
US11584025B2 (en) 2019-01-18 2023-02-21 Norgren Automation Solutions, Llc Method and apparatus for automated transforming tooling systems
DE102021134352A1 (de) * 2021-12-22 2023-06-22 Aida Europe Gmbh Drei-Achs-Transfersystem einer Transferpresse

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Also Published As

Publication number Publication date
ES2172619T3 (es) 2002-10-01
EP0773078A1 (fr) 1997-05-14
DE59609047D1 (de) 2002-05-16
US5868655A (en) 1999-02-09
CZ334596A3 (en) 1997-05-14
US5771561A (en) 1998-06-30
DE19542203A1 (de) 1997-05-15

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