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EP0425532A1 - Presse pour la fabrication en plusieurs etapes de pieces moulees en tole - Google Patents

Presse pour la fabrication en plusieurs etapes de pieces moulees en tole

Info

Publication number
EP0425532A1
EP0425532A1 EP19890907727 EP89907727A EP0425532A1 EP 0425532 A1 EP0425532 A1 EP 0425532A1 EP 19890907727 EP19890907727 EP 19890907727 EP 89907727 A EP89907727 A EP 89907727A EP 0425532 A1 EP0425532 A1 EP 0425532A1
Authority
EP
European Patent Office
Prior art keywords
press
frame
tools
tool
sheet metal
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.)
Pending
Application number
EP19890907727
Other languages
German (de)
English (en)
Inventor
Günther Haller
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.)
Allgaier Werke GmbH and Co KG
Original Assignee
Allgaier Werke GmbH and Co KG
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 Allgaier Werke GmbH and Co KG filed Critical Allgaier Werke GmbH and Co KG
Publication of EP0425532A1 publication Critical patent/EP0425532A1/fr
Pending 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/14—Particular arrangements for handling and holding in place complete dies
    • 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
    • B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
    • B21D24/005—Multi-stage presses

Definitions

  • the invention relates to a press for the production of sheet-metal shaped parts in several steps, with a press frame, a movable relative to the press frame plunger, on whose Unter ⁇ side, the tool top parts from a number of stages corresponds ⁇ speaking number of tools of a tool set.
  • a clamping plate arranged below the plunger, on the upper side of which the tool lower parts of the tool set can be fastened, and at least one number of pressure-medium-operated, individually controllable die cushions corresponding to the number of tools, which are located under the clamping plate in the Stepped steps are arranged between the corresponding mean distances and can be connected to a sheet metal holder of the respective tool by means of bolts which are axially displaceably mounted in the clamping plate.
  • the die cushions are arranged in a frame which has the clamping plate as an integral component and forms a unit which can be detachably connected to the press frame and is selected from a number of units which can be exchanged with one another, whose die cushions have different average distances for different steps.
  • the die cushions are therefore interchangeable, so that one and the same press can be used for different tool sets with different steps.
  • the die cushions can be changed easily, and the time required for converting the press can also be kept short by the fact that the new tool set is already outside the press the platen of the ready unit from die cushion and frame can be attached.
  • a number of sheet metal forming operations can be carried out for which previously several presses or even a press line were required. Since no further presses have to be provided for carrying out additional sheet metal forming operations, the investment costs and the space required for the equipment required for sheet metal forming are lower than hitherto.
  • the invention also has the advantage that existing presses with one or more permanently installed die cushions can be converted into presses according to the invention with little effort. From a simple press with only one die cushion, e.g. a transfer press for the production of sheet metal parts can be made in several stages in a simple manner, such a transfer press additionally having the advantage that different tool sets can be used with different steps.
  • a simple press with only one die cushion e.g. a transfer press for the production of sheet metal parts can be made in several stages in a simple manner, such a transfer press additionally having the advantage that different tool sets can be used with different steps.
  • the units can be arranged from die cushions and frames on the press table of the press. This option is of great advantage, especially with existing presses.
  • the arrangement of the units on the press table also has the advantage that a high rigidity of the press is achieved regardless of the design of the die cushion and frame unit.
  • FIG. 1 is a perspective view of a single-acting transfer press according to the invention with a die cushion and frame unit which is ready for exchange and on which the lower parts of the new tool set are already arranged,
  • Fig. La is a perspective view of two pairs of interchangeable gripper rails and
  • FIG. 2 shows a section broken away through a die cushion and frame unit for the press according to the invention shown in FIG. 1.
  • the illustrated in Fig. 1 single mechanical transfer press according to the invention comprises an O-shaped press frame 1, and a single through a top drive ⁇ on the movable plunger 2, to the underside of the tool top parts are secured releasably 3 of several tools.
  • the corresponding lower parts 4 of the tools are releasably attached to the top of a platen 5, which is part of an interchangeable unit 6.
  • the unit 6 consists of a frame, of which the platen 5 is an integral part.
  • the frame has a base plate 7, on which the clamping plate 5 is supported by ribs 8 made in one piece with the clamping plate 5.
  • the base plate 7 is firmly connected to the free ends of the ribs 8 and thus to the clamping plate 5.
  • Each die cushion 10 has a piston-cylinder unit 11 operated by pressure medium and a die cushion plate 12 fastened to the piston end, which is guided displaceably on the ribs 8.
  • Several bolts 13 are supported on each die cushion plate 12 and are axially displaceably mounted in the clamping plate. The bolts 13 connect the die cushions 10 to the sheet metal holders of the tools, so that the die cushions 10 can actuate the sheet metal holders during operation of the press.
  • the average distance between the die cushions 10 corresponds to the step between two adjacent tools, of which the lower parts are arranged on the platen 5 of the respective unit 6, 6 '.
  • the units 6, 6 ' have different mean distances between the drawing cushions, so that tool sets with different steps can be used.
  • the changeability of the step steps between the tools is shown in Fig. 1 demonstrates that a unit 6 is just installed in the press, which carries the lower parts 4 of a total of four tools of a tool set and has a corresponding number of die cushions, and that the unit 6 'next to the press has the lower parts 4' carries a total of eight tools from another tool set, the unit 6 * containing eight die cushions with the same external dimensions as the unit 6.
  • the unit 6 * containing eight die cushions with the same external dimensions as the unit 6.
  • the unit 6 To replace the units 6 and 6 'only the connection between the unit 6 and the press frame 1 has to be released, the unit 6 has to be removed from the press and for this the unit 6' has to be inserted and the connection between the press frame 1 and the unit 6 '.
  • the tool upper parts 3 are detachably fastened and exchangeable on the plunger 2, their step length being variable and corresponding to the size and number of the selected tools.
  • Fig. La two pairs of interchangeable gripper rails 14, 14 'for the gradual transport of the sheet metal parts to be produced are shown in perspective. While the pair of gripper rails 14 is installed in the press when the unit 6 with four tools is used as shown, the pair of gripper rails 14 is intended for the press when the unit 6 1 with eight tools is used as shown.
  • the transfer press according to the invention thus enables a variable step between the tools, so that differently sized tool sets with more or less operational options can be installed in the press.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

Dans une presse pour la fabrication en plusieurs étapes de pièces moulées en tôles, les coussins de serre-flan (10) sont agencés dans un cadre qui forme une unité (6, 6') reliable de manière libérable avec le bâti de presse (1) et sélectionnée parmi une pluralité d'unités interchangeables (6, 6') dont les coussins de serre-flan sont séparés entre les outils par des écarts intermédiaires différents pour différentes étapes de production. On peut ainsi incorporer à une telle presse des ensembles d'outils d'importance variable capables d'effectuer un nombre plus élevé ou plus réduit d'opérations.
EP19890907727 1988-07-22 1989-07-14 Presse pour la fabrication en plusieurs etapes de pieces moulees en tole Pending EP0425532A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3824997 1988-07-22
DE19883824997 DE3824997C1 (fr) 1988-07-22 1988-07-22

Publications (1)

Publication Number Publication Date
EP0425532A1 true EP0425532A1 (fr) 1991-05-08

Family

ID=6359350

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19890112999 Expired - Lifetime EP0351741B1 (fr) 1988-07-22 1989-07-14 Presse pour fabriquer des ébauches en tôle par plusieurs étapes de travail
EP19890907727 Pending EP0425532A1 (fr) 1988-07-22 1989-07-14 Presse pour la fabrication en plusieurs etapes de pieces moulees en tole

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19890112999 Expired - Lifetime EP0351741B1 (fr) 1988-07-22 1989-07-14 Presse pour fabriquer des ébauches en tôle par plusieurs étapes de travail

Country Status (3)

Country Link
EP (2) EP0351741B1 (fr)
DE (1) DE3824997C1 (fr)
WO (1) WO1990000943A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD557427S1 (en) 2006-09-08 2007-12-11 Samuel Stamping Technologies High definition two panel door skin
CN102489606B (zh) * 2011-12-05 2013-11-27 重庆国际复合材料有限公司 一种漏板底板预压成型模具及方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1028520B (de) * 1956-03-09 1958-04-24 Weingarten Ag Maschf Stufenpresse
DE1246652B (de) * 1962-02-10 1967-08-10 Mueller Fritz Stufenpresse
GB1250117A (fr) * 1969-03-07 1971-10-20
DE2921906C3 (de) * 1979-05-30 1982-02-25 Maschinenfabrik Weingarten Ag, 7987 Weingarten Arbeitsverfahren zur Überprüfung und Einstellung der Einzelwerkzeuge einer Mehrstufenpresse

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9000943A1 *

Also Published As

Publication number Publication date
EP0351741B1 (fr) 1993-03-17
DE3824997C1 (fr) 1989-09-28
WO1990000943A1 (fr) 1990-02-08
EP0351741A1 (fr) 1990-01-24

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Legal Events

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Free format text: VERFAHREN ABGESCHLOSSEN INFOLGE VERBINDUNG MIT 89112999.1/0351741 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) VOM 22.11.91.