EP0718054A1 - Umformpresse mit elastischer Matrize - Google Patents

Umformpresse mit elastischer Matrize Download PDF

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Publication number
EP0718054A1
EP0718054A1 EP95402856A EP95402856A EP0718054A1 EP 0718054 A1 EP0718054 A1 EP 0718054A1 EP 95402856 A EP95402856 A EP 95402856A EP 95402856 A EP95402856 A EP 95402856A EP 0718054 A1 EP0718054 A1 EP 0718054A1
Authority
EP
European Patent Office
Prior art keywords
forming
tool
container
forming press
support pile
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.)
Granted
Application number
EP95402856A
Other languages
English (en)
French (fr)
Other versions
EP0718054B1 (de
Inventor
Philippe Chedru
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.)
GEC Alsthom ACB
Original Assignee
GEC Alsthom ACB
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 GEC Alsthom ACB filed Critical GEC Alsthom ACB
Publication of EP0718054A1 publication Critical patent/EP0718054A1/de
Application granted granted Critical
Publication of EP0718054B1 publication Critical patent/EP0718054B1/de
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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/10—Stamping using yieldable or resilient pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups

Definitions

  • the present invention relates to an elastic matrix forming press.
  • the stamping tool comprises a male part and a female part between which the part to be stamped is formed.
  • Elastic matrix forming consists of simplifying the tool by reducing it to a single male or female part and replacing the other part with an elastic matrix. The main advantage comes from the savings made, since there is only half a tool left to manufacture for each different series of parts.
  • the elastic matrix is either an elastomer cushion or a bladder inflated with a liquid.
  • the machine is dimensioned according to the pieces of maximum dimensions that it will have to form. Furthermore, the machine is also designed to withstand the maximum forming force which corresponds to the maximum necessary forming pressure applied to the larger part. In addition, the necessary forming pressure depends on several parameters: the material of the part, its thickness and the forming radii.
  • the forming machines of this type comprise a frame, supporting the forming forces, and generally comprising between a lower beam and an upper beam, a jack, bearing on the lower beam, and on the piston of which rests a pile of support , and on this heap of support a tool-holder table for depositing the different forming tools on which the sheets to be formed rest, and, bearing against the upper beam, a container inside of which is located the elastic cushion acting as an elastic matrix of forming acting in combination with a tool resting on the tool table.
  • the pressure exerted by the forming matrix (the elastic cushion) is exerted on the entire surface of the table which penetrates into the container.
  • the present invention aims to achieve a more economical machine by limiting the effort of the machine, and therefore the resistance of its frame. This of course comes at the price of a compromise which means that, for large parts, there is only a lower forming pressure than that which is necessary to obtain a part without manual retouching. Thus, for such parts, which represent only a small proportion of the entire production, we accept manual retouching after the forming operation by the machine.
  • the invention therefore relates to an elastic matrix forming press comprising a frame comprising at least one lower beam and one upper beam joined by connecting means, a jack bearing against the lower beam, and a forming assembly comprising a pile of support resting on the piston of the jack, a tool-holder table, and a container with an elastic cushion bearing against the upper beam, characterized in that said forming assembly: pile of support, tool-holder table, container and elastic cushion, comprises means making it possible to exchange it for another whose surface of the tool-holder table is different, the section of said tool-holder table corresponding to the internal section of the container.
  • the support pile is equipped with rollers comprising means for placing them, either in the retracted position in the support pile, or in the extended position.
  • said container is kept fixed to said frame by unlockable latches.
  • Figure 1 schematically shows an elastic matrix forming press according to the invention.
  • Figures 2 and 3 show on a machine according to that of Figure 1 a forming cycle of a part.
  • Figures 4 to 11 show a cycle of change from one forming assembly to another.
  • Figures 12a and 12b show an enlarged detail of the press according to the invention, in two different positions.
  • Figure 13 shows another enlarged detail illustrating the support of the tool table on its cradle by means of an adapter ring.
  • an elastic matrix forming press This comprises a frame 1 comprising a lower beam 2, an upper beam 3 and uprights 4 and 5 connecting the beams.
  • the press includes a removable forming assembly allowing it to be exchanged for another.
  • This forming assembly comprises a support pile 8, a tool table 9, an elastic cushion 10 and its container 11.
  • the container 11 bears against the upper beam 3 and is held in place by latches 12 and 13.
  • the support pile 8 rests on the piston 7 of the jack.
  • the tool table 9 rests on an annular cradle 14 which itself rests, by rollers 15, on rails 16 linked to the frame 1.
  • This arrangement makes it possible to release, by rotation, the tool-holder table 9 from the machine in order to place there a forming tool such as 17 and the sheet metal 18 to be formed, and to remove the part once formed and also to replace the tool 17 by another, of another shape, if need be.
  • the support pile 8 is equipped with retractable rollers 19 mounted on jacks 20 (FIGS. 12A, 12B).
  • FIG. 12A a roller 19 can be seen in the retracted position in the support pile 8.
  • FIG. 12B the jack 20 has been actuated, and the roller 19 is lowered until it bears on a guide rail 21 and then lift the support pile 8 from its support on the piston 7.
  • FIG. 13 shows the detail of the support of a tool-holder table 9 on its cradle 14 by means of an adapter ring 22 in the case where the tool-holder table 9 'is of dimensions smaller than supports 23 of the cradle 14.
  • the support pile 8 has for intended to cooperate, during the rise of the piston, with two conical holes 25 of the table 9, so as to correctly position the tool-holder table on the support pile 8.
  • Figures 2 and 3 show a part forming cycle.
  • a forming tool 17 and a sheet 18 to be formed have been deposited on the table 9, as can be seen in FIG. 1, the pressure is sent to the jack whose piston 8 rises and presses the assembly 18 , 17 in the elastic matrix 10 ( Figure 2) which comes to apply the sheet 18 against the forming tool 17 by exerting a pressure substantially normal to the walls as if it were about a liquid.
  • the piston is lowered, FIG. 3, until it returns to the starting position where the tool-holder table 9 rests on the cradle 14.
  • FIGS. 4 to 11 show a cycle for replacing one forming assembly with another in which the dimension of the tool table 9 is smaller, therefore also the section of the elastic cushion 10 and the internal section of the container 11.
  • the actuator 6 is actuated so as to raise the piston 7 until the tool-holder table (on which no tool is disposed) comes against the elastic cushion 10.
  • FIG. 9 the cylinders 20 of the rollers 19 are emptied by the line 27 of the cylinders so that the new forming assembly rests, by its support pile 8 ′, on the piston 7.
  • FIG. 10 the new forming assembly is raised until the container 11 ′ presses against the upper beam 3, and the latches 12, 13 are closed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Press Drives And Press Lines (AREA)
EP95402856A 1994-12-22 1995-12-18 Umformpresse mit elastischer Matrize Expired - Lifetime EP0718054B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9415487A FR2728489B1 (fr) 1994-12-22 1994-12-22 Presse de formage a matrice elastique
FR9415487 1994-12-22

Publications (2)

Publication Number Publication Date
EP0718054A1 true EP0718054A1 (de) 1996-06-26
EP0718054B1 EP0718054B1 (de) 1999-02-03

Family

ID=9470116

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95402856A Expired - Lifetime EP0718054B1 (de) 1994-12-22 1995-12-18 Umformpresse mit elastischer Matrize

Country Status (9)

Country Link
US (1) US5706685A (de)
EP (1) EP0718054B1 (de)
JP (1) JPH08206884A (de)
KR (1) KR960021501A (de)
CN (1) CN1064280C (de)
DE (1) DE69507681T2 (de)
ES (1) ES2128681T3 (de)
FR (1) FR2728489B1 (de)
RU (1) RU2139194C1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2677446C1 (ru) * 2017-12-11 2019-01-16 Закрытое акционерное общество Производственная Компания "СтанкоПресс" Штамповочный пресс с упругой матрицей
CN108790548B (zh) * 2018-07-24 2024-01-23 山东招金金银精炼有限公司 一种金属薄片的压印工装、系统及方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2984176A (en) * 1957-05-15 1961-05-16 Us Industries Inc Die clamp
US3134350A (en) * 1961-05-02 1964-05-26 Danly Mach Specialties Inc Carrier clamp for quick die change press
DE1271662B (de) * 1957-06-10 1968-07-04 Us Industries Inc Vorrichtung zum Auswechseln von Gesenksaetzen in einer Blechziehpresse
AT390226B (de) * 1986-04-08 1990-04-10 Fischer Gerhard Vorrichtung zum einbauen und ausbauen von pressenwerkzeugen

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE390226C (de) * 1924-02-15 Hartmann & Braun Akt Ges Verfahren zur Messung des Scheitelwertes und des Scheitelfaktors veraenderlicher Spannungen
US3111100A (en) * 1958-01-16 1963-11-19 Danly Mach Specialties Inc Quick die change press
JPS433579Y1 (de) * 1964-08-08 1968-02-14
US3422662A (en) * 1967-08-01 1969-01-21 Bliss Co Movable bolster
US3456481A (en) * 1968-01-11 1969-07-22 Barogenics Inc Die changing apparatus
SU431928A1 (de) * 1973-01-15 1974-06-15
SE408383B (sv) * 1976-04-08 1979-06-11 Asea Ab Press for formning av platar och dylikt med hjelp av en formdyna, som under formningsskedet er innesluten i en kavitet, som bildas av en ovre och en undre verktygsdel av vilka minst en er rorligt anordnad i ett ...
SU812383A1 (ru) * 1979-05-15 1981-03-15 Отдел Физики Полимеров Уральскогонаучного Центра Ah Cccp Штамп дл гибки скоб
SU1349833A1 (ru) * 1985-09-04 1987-11-07 Предприятие П/Я В-8772 Штамп дл формовки и гибки
JPS6433228U (de) * 1987-08-21 1989-03-01
FR2683168B1 (fr) * 1991-11-04 1994-03-04 Isoform Dispositif d'emboutissage de materiaux en feuille, notamment de flans de tole.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2984176A (en) * 1957-05-15 1961-05-16 Us Industries Inc Die clamp
DE1271662B (de) * 1957-06-10 1968-07-04 Us Industries Inc Vorrichtung zum Auswechseln von Gesenksaetzen in einer Blechziehpresse
US3134350A (en) * 1961-05-02 1964-05-26 Danly Mach Specialties Inc Carrier clamp for quick die change press
AT390226B (de) * 1986-04-08 1990-04-10 Fischer Gerhard Vorrichtung zum einbauen und ausbauen von pressenwerkzeugen

Also Published As

Publication number Publication date
CN1132672A (zh) 1996-10-09
DE69507681T2 (de) 1999-09-09
EP0718054B1 (de) 1999-02-03
DE69507681D1 (de) 1999-03-18
JPH08206884A (ja) 1996-08-13
KR960021501A (ko) 1996-07-18
US5706685A (en) 1998-01-13
RU2139194C1 (ru) 1999-10-10
FR2728489A1 (fr) 1996-06-28
FR2728489B1 (fr) 1997-01-31
ES2128681T3 (es) 1999-05-16
CN1064280C (zh) 2001-04-11

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