EP0283810B1 - Presse transfert - Google Patents

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Publication number
EP0283810B1
EP0283810B1 EP88103484A EP88103484A EP0283810B1 EP 0283810 B1 EP0283810 B1 EP 0283810B1 EP 88103484 A EP88103484 A EP 88103484A EP 88103484 A EP88103484 A EP 88103484A EP 0283810 B1 EP0283810 B1 EP 0283810B1
Authority
EP
European Patent Office
Prior art keywords
mounting
bayonet
pin
bush
template
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
EP88103484A
Other languages
German (de)
English (en)
Other versions
EP0283810A2 (fr
EP0283810A3 (en
Inventor
Edmund Daubner
Gerald Mikusch
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 EP0283810A2 publication Critical patent/EP0283810A2/fr
Publication of EP0283810A3 publication Critical patent/EP0283810A3/de
Application granted granted Critical
Publication of EP0283810B1 publication Critical patent/EP0283810B1/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
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7005—Lugged member, rotary engagement
    • Y10T403/7007—Bayonet joint

Definitions

  • the invention relates to a device of the type specified in the preamble of claim 1.
  • step presses large step presses u. Like. Transfer presses, in which larger workpieces are processed in stages arranged one behind the other, so-called empty stages are present between the press stands. No forming takes place in these. As a result of the fixed transfer movement for the workpieces, the empty steps must have a clipboard, the top of which corresponds to the shape of the underside of the workpieces in the support areas. With every tool change, clipboards must be set up that are adapted to the new workpiece.
  • DE-PS 33 34 021 a device for the intermediate storage of workpieces in empty stages of transfer presses has been shown and described.
  • the device consists of a gripping and holding device arranged in the area of an empty stage.
  • racks attached to the gripping and holding device movable in the transfer direction and designed as a gripper
  • templates that can be moved with the sliding table can be grasped and implemented in the area of the empty stage.
  • the templates are gripped by rotatable anchors on the grippers which, for this purpose, grip bayonet-like through openings in the template.
  • the templates are held on the sliding tables via bolt hole guides and holding magnets during the exchange of the sliding tables. This type of suspension of the templates on the sliding tables is an inexpensive one; however, this carries the risk of improper handling of the templates.
  • the object of the invention lies both in the precise guidance of the template when uncoupling from the sliding table or tool, the accurate insertion of the template into the empty stage and the precise fitting of the template on the sliding table or on the Tool when changing tools as well as avoiding manual intervention by a person unfamiliar with the proper handling of the templates.
  • the stencil is removed from the sliding table or from the tool in an inventive manner after the stencil carrier is brought up to the sliding table by a single rotary movement in which the stencil is closed by the bayonet-like arrangement of means on the locating pin and on the locating bushing Grippers fixed and released by opening the lock of the bayonet-like arrangement of means on the receptacle and on the holding means of the sliding table of this or of the tool.
  • the sliding table is only released when the template is securely coupled to the grippers.
  • the template is docked to the sliding table in the reverse manner, likewise by only one rotary movement for coupling to the sliding table or to the tool and the uncoupling from the gripper, which occurs later.
  • the precisely fitting components and the time-delayed sequence of coupling / uncoupling enable a fully automatic change process to be carried out and monitored by the press control.
  • the automatic, unwanted adjustment of the locked dome position of the locating pin and locating bush is prevented.
  • the multi-part design of the template enables the use of lighter materials.
  • Fig. 1 an empty stage area between the press stands 1 of a transfer press is shown.
  • the press stand located at the front has been omitted for better identification of a gripping and holding device 3 in the empty stage area.
  • the indicated transfer rails 2 serve to transfer workpieces between the processing stages and empty stages.
  • the gripping and holding device 3 has a motor drive 8, which can comprise hydraulically, pneumatically or electrically actuated actuating means, by means of which the template carrier 7 can be extended and retracted in a preferably horizontal direction.
  • the stencil supports 7 have actuating means 9 of an electrical, hydraulic or pneumatic type and mounting bolts 10 on the extendable end parts.
  • Sliding tables 4 can be moved into the tool spaces of the transfer press for the tool change.
  • Support elements 5 for stencils 6 are fastened to the side parts of the sliding tables 4. With 6 ⁇ the support position of the templates 6 is indicated in one of several possible empty levels.
  • each support element 5 closes at the top with a holding plate 20.
  • the holding plate 20 can be designed as a crossmember and extend over, for example, two coupling areas for the template 6.
  • the holding plate 20 is drilled out in the coupling areas for receiving a receiving bushing 17 which is rotatably fixed on the template 6.
  • a cylindrical pin 19 is fitted into the holding plate 20.
  • the receptacle bushing 17 has a part of a receptacle groove 25 which, starting from the left-hand side facing away from the gripping and holding device 3, initially extends in the axial direction, depending on the immersion depth of the receptacle bushing 17 in the holding plate 20 axially extending part of the guide groove 25 merges into a part running at right angles thereto in the form of a circumferential groove, the course of which is shown in FIGS. 4 to 6 can be seen.
  • the receptacle 17 is, as shown in FIGS. 2 and 3 can be seen in more detail in a marked with 15 Recording carrier rotatably used with the help of an adjusting ring 16.
  • the receiving bushing 17 has an inwardly projecting cylindrical pin 18, which dips into a guide groove 22 in the receiving bolt 10 of the template carrier 7 (FIG. 1).
  • the guide groove 22 in the locating pin 10 extends from the latter in the FIGS. 2 and 3, the end face shown on the left in the axial direction corresponding to the immersion depth of the locating pin 10 in the locating bushing 17.
  • the guide groove 22 merges into a part running at right angles to this in the form of a circumferential groove, the course of which is shown in FIGS. 4 to 6 can be seen in more detail.
  • the receiving carrier 15 has a locking device 21 which here engages in a locking groove 23 and prevents the receiving bushing 17 from rotating freely in this position, which corresponds to the coupling / uncoupling position of the receiving bolt 10 and the receiving bushing 17.
  • a spacer ring is positioned at 14 on which the receiving bushing 17 is supported.
  • a spur gear 11 is placed by means of a fit and feather key 13, which is in operative engagement with a rack 12.
  • the toothed rack 12 can be the extended end part of a piston rod which is guided out of the adjusting means 9.
  • Fig. 3 shows in particular that the receiving bushing 17 remains on the template 6 when the template 6 is removed from the support element 5.
  • the receiving bushing 17 has been rotated through 45 angular degrees as a result of a rotation of the receiving bolt 10 by means of the adjusting means 9 and the rack 12 through 90 angular degrees.
  • the lock now snaps into the locking groove 24.
  • Fig. 4 shows the rotational position of the locating pin 10 and the locating bushing 17 during the insertion of the locating pin 10 into the locating bushing 17 or during the removal of the locating pin 10 from the locating bushing 17.
  • the cylindrical pin 18 is in the axially extending part of the guide groove 22 in the Receiving pin 10 inserted.
  • the cylindrical pin 19 is located at the end of the part of the receiving groove 25 which extends circumferentially in the receiving bushing 17.
  • the lock 21 engages in the locking groove 23 to secure the position of the receiving bushing 17.
  • the locating bushing 17 becomes initially not yet rotated, since the cylindrical pin 18 is located in the part of the guide groove 22 which is indicated by the broken line and which extends circumferentially in the locating bolt 10.
  • the cylindrical pin 18 lies against the end of the guide groove 22 while the locating pin 10 is further rotated, shown in FIG. 5, the locating bushing 17 is rotated until the part of the locating groove 25 that is axially aligned with this is aligned with the cylindrical pin 19, shown in FIG 6.
  • the template 6 can be removed from the support element 5 and the holding plate 20.
  • the lock 21 can secure this position of the receiving bushing 17 by engaging in the locking groove 24.
  • the figures 4 to 6 thus show the successive movements of the two bayonet-type closures formed by the parts: locating pin 10, guide groove 22, cylindrical pin 18 and locating bush 17 on the one hand and locating bush 17, locating groove 25, cylindrical pin 19 and retaining plate 20 on the other.
  • the stencil 6 is docked onto the sliding table 4 in an almost reverse manner, with the position of all the parts shown in FIG. 6 being assumed.
  • the locating bushing 17 initially remains in the position shown in FIG. 6 until the cylindrical pin 18, after the locating pin has rotated by 45 angular degrees, rests against the opposite end of the part of the guide groove 22 , so aligned with the axially extending part.
  • the receiving bushing 17 is rotated by 45 degrees from the receiving bolt 10, so that the end of the part of the receiving groove 25 which extends circumferentially on the receiving bushing 17 bears against the cylindrical pin 19.
  • the template carrier 7 With the alignment of the cylindrical pin 18 with the axially extending part of the guide groove 22 and the contact of the cylindrical pin 19 at the end of the part of the receiving groove which extends circumferentially in the receiving bushing 17, the template carrier 7 can be withdrawn from the sliding table 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Automatic Assembly (AREA)
  • Press Drives And Press Lines (AREA)

Claims (4)

  1. Installation pour le dépôt intermédiaire de pièces dans des postes à vide de presses transfert, comportant, dans les postes à vide, des dispositifs (3) de prise et de maintien de gabarits (6) qui sont introduits dans des zones équipées d'outils de la presse avec les tables mobiles (4) au moyen d'organes de maintien (5, 20), et des porte-gabarits (7) montés sur les dispositifs de prise et de maintien (3) et agencés pour se déplacer horizontalement en direction des tables mobiles (4) et en retour grâce à un entraînement motorisé (8), ces porte-gabarits étant pourvus de chevilles réceptrices (10) qu'un moyen de commande (9) peut faire tourner et qui coopèrent à la manière d'un verrouillage à baïonnette avec des ouvertures prévues dans les gabarits (6), caractérisée en ce que les gabarits (6) sont pourvus de douilles réceptrices rotatives (17) dans lesquelles les chevilles réceptrices (10) peuvent être introduites, en ce que les organes de maintien (5, 20) ont des alésages agencés pour recevoir les douilles réceptrices (17), et en ce qu'il y a un premier verrouillage à baïonnette (18, 22) entre la douille réceptrice (17) et la cheville réceptrice (10) et un second verrouillage à baïonnette (19, 25) entre les organes de maintien (5, 20) et la douille réceptrice (17), ces verrouillages à baïonnette (18, 22; 19, 25) étant actionnés l'un après l'autre de telle manière que le verrouillage à baïonnette (18, 22) entre la douille réceptrice (17) et la cheville réceptrice (10) devienne actif avant le verrouillage à baïonnette (19, 25) entre les organes de maintien (5, 20) et la douille réceptrice (17), quand la cheville (10) a été introduite dans la douille (17) pour prendre en charge le gabarit (6).
  2. Installation selon la revendication 1, caractérisée en ce que le premier verrouillage à baïonnette (18, 22) est formé par une partie d'une rainure de guidage (22) qui s'étend dans la direction de l'axe de la cheville réceptrice (10), par une partie de cette rainure (22) qui s'étend perpendiculairement à ladite direction et dans le sens opposé à celui de la rotation de la cheville (10) lors du couplage de la cheville (10) à la douille (17), et par un premier doigt cylindrique (18) encastré dans la douille (17), et en ce que le second verrouillage à baïonnette (19, 25) est formé par une partie d'une rainure réceptrice (25) qui s'étend dans la direction de l'axe de la douille réceptrice (17), par une partie de cette rainure (25) qui s'étend perpendiculairement à ladite direction et dans le sens de la rotation de la douille (17) lors du découplage de la douille (17) par rapport aux organes de maintien (5, 20), et par un second doigt cylindrique (19) encastré dans un organe de maintien (5, 20), lesdites parties des rainures (22, 25) qui s'étendent dans la direction de l'axe étant accessibles aux doigts cylindriques (18, 19) du côté opposé au dispositif de prise et de maintien (3).
  3. Installation selon la revendication 2, caractérisée en ce qu'un dispositif d'arrêt (21, 23, 24) est prévu entre la douille réceptrice (17) et le gabarit (6) pour maintenir cette douille (17) au moins dans la position de couplage et de découplage de la douille (17) et de la cheville (10).
  4. Installation selon la revendication 1, caractérisée en ce que le gabarit (6) est réalisé en plusieurs parties et comporte un support (15) dans lequel deux douilles réceptrices (17) sont logées de manière rotative et sont retenues chacune par une bague d'arrêt (16).
EP88103484A 1987-03-25 1988-03-05 Presse transfert Expired - Lifetime EP0283810B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873709762 DE3709762A1 (de) 1987-03-25 1987-03-25 Transferpresse
DE3709762 1987-03-25

Publications (3)

Publication Number Publication Date
EP0283810A2 EP0283810A2 (fr) 1988-09-28
EP0283810A3 EP0283810A3 (en) 1989-07-19
EP0283810B1 true EP0283810B1 (fr) 1992-01-29

Family

ID=6323910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88103484A Expired - Lifetime EP0283810B1 (fr) 1987-03-25 1988-03-05 Presse transfert

Country Status (5)

Country Link
US (1) US4881398A (fr)
EP (1) EP0283810B1 (fr)
CA (1) CA1279467C (fr)
DE (2) DE3709762A1 (fr)
ES (1) ES2029857T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4001590A1 (de) * 1989-02-15 1990-08-16 Mueller Weingarten Maschf Grossteil-stufenpresse
JPH0810279Y2 (ja) * 1989-08-10 1996-03-29 ダイワ精工株式会社 魚釣用両軸受型リール
DE4122074C2 (de) * 1991-07-04 1998-11-19 Erfurt Umformtechnik Gmbh Ablage für Blechformteile in Leerstufen einer Transferpresse
DE19721614A1 (de) * 1997-05-23 1998-11-26 Schuler Pressen Gmbh & Co Pressenanlagen mit automatischem Toolingwechsel und Verfahren zum Toolingwechsel
US6182491B1 (en) * 1999-11-12 2001-02-06 Cpi Products, L.C. Tool mount for automated manufacturing lines
DE10329007A1 (de) * 2003-06-27 2005-01-13 Gustav Klauke Gmbh Verriegelungsbolzen zur Befestigung eines Werkzeuges an einem hydraulischen Verpressgerät
DE102013021404A1 (de) 2013-12-18 2015-06-18 Ludwig Ehrhardt Gmbh Kupplungssystem

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503969A (en) * 1982-07-02 1985-03-12 Kabushiki Kaisha Komatsu Seisakusho Device for splitting a pair of segmented transfer bars of a transfer press or the like
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
DE3504765A1 (de) * 1985-02-13 1986-08-21 L. Schuler GmbH, 7320 Göppingen Transferpresse

Also Published As

Publication number Publication date
EP0283810A2 (fr) 1988-09-28
US4881398A (en) 1989-11-21
CA1279467C (fr) 1991-01-29
DE3868096D1 (de) 1992-03-12
ES2029857T3 (es) 1992-10-01
DE3709762A1 (de) 1988-10-06
EP0283810A3 (en) 1989-07-19

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