EP0576878B1 - Dispositif pour échanger et ajuster un outil dans une presse - Google Patents

Dispositif pour échanger et ajuster un outil dans une presse Download PDF

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Publication number
EP0576878B1
EP0576878B1 EP93109180A EP93109180A EP0576878B1 EP 0576878 B1 EP0576878 B1 EP 0576878B1 EP 93109180 A EP93109180 A EP 93109180A EP 93109180 A EP93109180 A EP 93109180A EP 0576878 B1 EP0576878 B1 EP 0576878B1
Authority
EP
European Patent Office
Prior art keywords
clamping
press
die
clamping base
fixture block
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
EP93109180A
Other languages
German (de)
English (en)
Other versions
EP0576878A1 (fr
Inventor
Gerd Vasel
Berthold Jarosch
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 EP0576878A1 publication Critical patent/EP0576878A1/fr
Application granted granted Critical
Publication of EP0576878B1 publication Critical patent/EP0576878B1/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
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/212—Details
    • B21C23/215—Devices for positioning or centering press components, e.g. die or container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/212—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B21J13/03—Die mountings

Definitions

  • the invention relates to a device of the type specified in the preamble of claim 1.
  • the device serves for the exchange as well as the press-tight installation of the tool consisting of tool die and punch in the installation space of a press on press table and ram.
  • the press operation is to be secured through the mass production of workpieces to be formed.
  • the setting of the tool parts with reference to the punch axis and die axis must be enabled and secured. The adjustment is done after changing the tool and when replacing e.g. only the stamp is necessary.
  • DE 40 10 747 A1 describes an extrusion press which has a frame to which a die tool is fastened by means of a die holder, a centering plate and a centering frame.
  • the stamp is mounted with its shaft in a stamp holder connected to the plunger.
  • the die tool with the die holder, the centering plate and the centering frame are arranged on a base plate.
  • the die is centered directly, i.e. between the press-fixed mounting block and the clamping base that supports the die.
  • the centering elements are supported on the press-fixed mounting block.
  • the device can be used not only on the table side but also on the ram side, and the stamp holder can also be used on the table side. The possibility of radial adjustment is provided for the stamp.
  • a press table 1 of an extrusion press is indicated.
  • the installation space for a die tool is numbered 3.
  • the installation space for a stamp on a plunger positioned with 2 is marked with 4.
  • This arrangement is exemplary, since the die tool and stamp can also be installed on the mutual press part, stamp on the table or die tool on the ram.
  • the press table 1 carries a receiving block 5 which is fixed by means of screw elements 9, 15 or in some other way.
  • a clamping base 6 has been inserted into the receiving block 5 from above into the insertion side 52, which is below the clamping elements 7 on the press table 1
  • Intermediate layer of the receiving block 5 can be fixed after the following to FIGS. 2 and 3 still to be described adjustment to the central axis of the stamp 17 has been made.
  • the clamping elements 7 are rotary clamps, each with a clamping head 8 in the extension of the clamping axis.
  • the clamping head 8 can be moved and rotated in the indicated positions 8 ′′ and 8 ′.
  • the tensioning takes place after passing through the mounting block 5 and tensioning base 6 and rotation by approximately 90 degrees by pulling back the tensioning anchors.
  • the die 13 is fastened to the clamping base 6 by means of a clamping nut 14 with the interposition of a pressure plate 12 in a position fixed with respect to the clamping base 6.
  • the elements shown on the plunger 2 are explained in relation to FIG. 4.
  • the clamping base 6 is inserted from above into the receiving block 5.
  • the receiving block 5 has a recess 23.
  • the recess 23 is against the emergence of the clamping base 6 by guide strips 22 in the upper region and secured by guide strips 24 in the lower area.
  • the insertion area located at the top can be closed by a cover plate 10, which can be swung open about the pivot point 25 and can be fixed on the receiving block 5 by a screw element 26 passing through a recess 27.
  • the die is adjusted by movements of the wedges 29.
  • the threaded spindles 31, 32 are simultaneously rotated in the clamping direction by moving the wedges to the vertical center, the die is moved in the vertical direction, when only one wedge 29 is clamped at right angles to the wedge movement.
  • a horizontal adjustment of the die is achieved by rotating the threaded spindles 31, 32 in opposite directions.
  • the clamping base 6 can be fixed by screwing means 11.
  • the die tool 13 (12, 13, 14) is adjusted when the screwing means 11 is loosened and when the insert is closed by the cover plate 10 by means of wedges 29 inserted in the additional block 35 in the receiving block 5 are supported on the one hand on a sliding surface 30 in the recess 35 of the receiving block 5 and on the other hand on one sliding surface 34 of the clamping base 6.
  • the sliding surfaces 30 and 34 are inclined surfaces, respectively, which are at an angle of inclination, e.g. as shown.
  • the wedges 29 can be adjusted by means of a threaded spindle 31 and a ball nut 33 by motor, or also manually by means of moving or screw threads and threaded spindle 32 via an adjusting head 37. With 39 the bearing point for the threaded spindle 31 is indicated; the position number 38 indicates the breakthrough in the mounting block 5 and the clamping base 6 for the clamping head 8.
  • FIG. 3 serves to make it easier to see the opening 38 and the mounting of the clamping wedges 29.
  • the installation space 4 is shown with components that can be seen in more detail in FIG. 4.
  • Brackets 47 are introduced into the installation space 4.
  • a clamping bar 46 is attached to each of these.
  • the clamping bar 46 has printing units 48, for example. hydraulic type, which act on a clamping plate 40 via pistons, in order to bring about a pressure of a clamping set receiving the punch 17 consisting of clamping nut 18, clamping cone 19, pressure plate 20 and clamping head 16 on the plunger 2.
  • the clamping plate 40 is provided with an opening for the passage of the clamping head 16 in the direction of the press table 1.
  • the clamping plate 40 is held laterally between the brackets 47 and by a bracket 44.
  • clamping plate 40 and thus the punch are locked in the vertical plane by clamping elements 21, for example. hydraulic type 43 with pistons 42 which can be advanced against inclined surfaces or clamping surfaces 41 on the clamping plate 40.
  • clamping head 16 and clamping plate 40 After inserting the clamping head 16 and clamping plate 40 into the recess formed by the brackets 47 and clamping strips 46 with the pressure units 48, the clamping head 16 with the stamp 17 can be rotated with only slight pressure being applied to the printing units 48. A targeted rotation takes place via a radial adjustment 51 from an angle plate 49 with screw elements 50.
  • the screw elements 50 are placed on a projection 53 rigidly fastened to the clamping head 16. It has been shown that, for example, tensioning elements such as the tensioning bars positioned with 7 or the tensioning bars positioned with 46 can be replaced by equivalent means.
  • An embodiment according to the invention provides for the mounting block 5 and clamping base 6 to be used to hold the stamp 17 and to adjust it on the stamp 2.
  • the table-side adjustment of the die is then limited to a radial adjustment using the means shown in FIG. 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Claims (9)

  1. Dispositif pour échanger et ajuster un outil dans l'unité intégrée de montage de l'outillage (3, 4) d'une presse, en particulier d'une presse continue, ayant un châssis, une table de presse (1) et un poussoir (2) mobile en direction de ce châssis, dans lequel l'outil est constitué d'une étampe (12, 13, 14) et d'un poussoir (12) et est interchangeable par rapport à des moyens de support, caractérisé par la combinaison des moyens suivants :
    - un bloc récepteur (5) est bloqué dans l'unité intégrée de montage de l'outillage (3, 4), par fixation au poussoir (2) du côté poussoir de la table de presse (1) et est fixé au moyen d'éléments de serrage (7, 9, 15),
    - le bloc récepteur (5) est pourvu d'un évidement (23) et de moyens de guidage (22, 24) pour recevoir un sous-ensemble de serrage (6) portant une partie (13, 17) de l'outil d'étampage,
    - un cône de serrage (29) mobile longitudinalement, s'appuie contre deux surfaces de glissement (30) obliques, inclinées par rapport à la direction d'introduction (52) du sous-ensemble de serrage (6), dans la zone inférieure de l'évidement (23), respectivement par l'intermédiaire des moyens de réglage (31, 33, 39 respectivement 32, 37),
    - le sous-ensemble de serrage (6) est en appui contre les cônes de serrage (29) avec des surfaces de glissement (34) également inclinées,
    - la face d'introduction (52) du sous-ensemble de serrage (6) du bloc récepteur (5) est obturée par une plaque de couverture (10) pendant l'ajustage et le fonctionnement,
    - la plaque de couverture (10) est, le cas échéant, pourvue d'éléments d'appui élastiques (28) qui agissent sur le sous-ensemble de serrage (6) par connexion sur les cônes (29).
  2. Dispositif selon la revendication 1, caractérisé en ce que le bloc récepteur (5) est bloqué contre la table de presse (1) pour recevoir le sous-ensemble de serrage (6) et l'outil d'étampage (12, 13, 14).
  3. Dispositif selon la revendication 1, caractérisé en ce que le bloc récepteur (5) est bloqué contre le poussoir (2) pour recevoir le sous-ensemble de serrage (6) et une étampe (17).
  4. Dispositif selon la revendication 1, caractérisé en ce que les éléments de serrage (7) sont guidés dans des alésages (38) ménagés à travers le bloc récepteur (5) et le sous-ensemble de serrage (6) et sont bloqués en position par des têtes de serrage (8) en forme de têtes d'ancrage dans le sous-ensemble de serrage (6).
  5. Dispositif selon la revendication 1, caractérisé en ce qu'un jeu est ménagé entre le guidage latéral dans le bloc récepteur (5) formé par l'évidement (23) et le sous-ensemble de serrage (6) inséré dans cet évidement et en ce que les cônes (29) sont disposés dans des évidements (35), qui sont maintenus verrouillés pour les cônes (29) et le sous-ensemble de serrage (6) par des listes de guidage (24).
  6. Dispositif selon la revendication 1, caractérisé en ce que les éléments d'appui élastiques (28) sont des billes sollicitées par des ressorts, ces billes étant agencées pour agir sur le sous-ensemble de serrage (6) par effet ressort, cet effet ressort étant remplacé par un moyen de vissage (11) après l'ajustage.
  7. Dispositif selon la revendication 1, caractérisé en ce que l'étampe (17) de l'outil est maintenue dans un mandrin de serrage (16), en ce que ce mandrin de serrage (16) est logé dans un évidement (45) d'un bloc récepteur (5) par fixation directe dans un évidement (45) du poussoir (2) et que l'évidement (45) est agencé pour permettre une rotation de l'étampe (17) en son milieu, et en ce que le mandrin de serrage (16) est pourvu d'une protubérance (53) qui est opérationnellement liée à un réglage radial (51) disposé du côté du châssis.
  8. Dispositif selon la revendication 1, caractérisé en ce que le mandrin de serrage (16) est maintenu dans une plaque de serrage (40) qui est bloquée d'une part vers la presse par des éléments de serrage (21) et qui est d'autre part contrainte et maintenue dans une direction axiale de l'étampe (17) et du mandrin de serrage (16) par des unités de pression (48) de la presse.
  9. Dispositif selon la revendication 8, caractérisé en ce que les unités de pression (48) son rendues solidaires de la presse par des moyens tels que des joues de serrage (46) et des équerres de maintien (47).
EP93109180A 1992-06-19 1993-06-08 Dispositif pour échanger et ajuster un outil dans une presse Expired - Lifetime EP0576878B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4220079A DE4220079A1 (de) 1992-06-19 1992-06-19 Vorrichtung zum Auswechseln und Justieren eines Werkzeugs im Werkzeugeinbauraum einer Presse
DE4220079 1992-06-19

Publications (2)

Publication Number Publication Date
EP0576878A1 EP0576878A1 (fr) 1994-01-05
EP0576878B1 true EP0576878B1 (fr) 1996-04-17

Family

ID=6461375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93109180A Expired - Lifetime EP0576878B1 (fr) 1992-06-19 1993-06-08 Dispositif pour échanger et ajuster un outil dans une presse

Country Status (3)

Country Link
EP (1) EP0576878B1 (fr)
DE (2) DE4220079A1 (fr)
ES (1) ES2087611T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10229046A1 (de) * 2002-06-28 2004-01-15 Bayerische Motoren Werke Ag Einrichtung und Verfahren zur einstellbaren Befestigung eines Bauteils, insbesondere eines Faltverdecks an einem Kraftfahrzeug
CN102861776A (zh) * 2012-09-28 2013-01-09 太原重工股份有限公司 一种挤压机模具压紧装置及模具固定装置
DE102013006831B4 (de) * 2013-04-22 2015-05-28 Schuler Pressen Gmbh Spannsystem zum Spannen eines Stempels an einem Stößel einer Fließdruckpresse
CN104438411B (zh) * 2014-12-01 2016-09-14 杭州易钭标牌有限公司 挤压成型设备
CN108907806B (zh) * 2018-08-20 2019-12-20 三门技师学院 一种具有稳定夹持力的机械加工夹具
CN112517655B (zh) * 2020-10-21 2024-01-09 福建省南平铝业股份有限公司 一种适用于卧式加工中心加工挤压模的保压治具
CN112589707A (zh) * 2020-12-15 2021-04-02 芜湖科捷铝业科技有限公司 一种便于调节的门窗铝型材加工工装
CN114345967A (zh) * 2021-12-29 2022-04-15 重庆禾芮卓机械有限公司 一种汽车减震器配件生产加工用冷镦冷挤设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1751075A (en) * 1928-05-11 1930-03-18 Mark H Damerell Sow-block holder for hammers
DE3026295A1 (de) * 1980-07-11 1982-02-11 Schloemann-Siemag AG, 4000 Düsseldorf Hydraulische obersattel-klemm- und -drehvorrichtung an schmiedepressen
DE3740815A1 (de) * 1987-08-20 1989-03-02 Banning Ag J Schmiede-, insbesondere gesenkhammer

Also Published As

Publication number Publication date
EP0576878A1 (fr) 1994-01-05
DE4220079A1 (de) 1993-12-23
ES2087611T3 (es) 1996-07-16
DE59302239D1 (de) 1996-05-23

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