EP0808224B1 - Outil d'emboutissage profond a serre-flan integre - Google Patents

Outil d'emboutissage profond a serre-flan integre Download PDF

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Publication number
EP0808224B1
EP0808224B1 EP96901787A EP96901787A EP0808224B1 EP 0808224 B1 EP0808224 B1 EP 0808224B1 EP 96901787 A EP96901787 A EP 96901787A EP 96901787 A EP96901787 A EP 96901787A EP 0808224 B1 EP0808224 B1 EP 0808224B1
Authority
EP
European Patent Office
Prior art keywords
hold
deep
drawing tool
down device
stamp
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
EP96901787A
Other languages
German (de)
English (en)
Other versions
EP0808224A1 (fr
Inventor
Gerhard Pirchl
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.)
Hecralmat
Original Assignee
Hecralmat
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 Hecralmat filed Critical Hecralmat
Publication of EP0808224A1 publication Critical patent/EP0808224A1/fr
Application granted granted Critical
Publication of EP0808224B1 publication Critical patent/EP0808224B1/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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/22—Deep-drawing with devices for holding the edge of the blanks
    • 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
    • B21D24/04—Blank holders; Mounting means therefor

Definitions

  • the invention relates to a deep-drawing tool according to the The preamble of claim 1 as in JP-A-63 140 728 disclosed.
  • the hold-down device is movable separately from the stamp and should be on sit on the deep-drawn sheet and hold it down, while the stamp moves down and pulls the sheet into the deep-drawing mold with deformation.
  • the downholders known to date have the disadvantage that that the hold-down devices consist of a metal tool, which is loaded with its own press, so that this sheet is held at a relatively high pressure becomes.
  • the invention is based on the object Manufacture deep-drawing tools more cost-effectively.
  • the main advantage is achieved that on one Drive for the hold-down device itself is dispensed with at all can be. It has now been found that certain materials are best suited for the hold-down devices are a corresponding holding force on the to produce sheet metal to be held, this material so is highly deformable that while held Sheet (with high hold-down pressure) the stamp in the required Drive the deformation path into the mold can.
  • Polyurethane foam is used, which has a high resilience from e.g. 50%.
  • a plastic material is preferred as the material for the brake shoes used, which according to the requirements adjustable with different holding properties is.
  • So z. B. can be used as a plastic material a polyethylene, a polyurethane or the like. Each depending on the material used, there is a certain one Friction coefficient on contact with the sheet to be held.
  • the brake shoe as a circumferential ring is formed, on which the piece is distributed around the circumference hold down the arranged hold-down device. It can hence the hold-down force through change the type of material and the dimensions of the hold-down device to be changed. It is important that the brake shoe can deform slightly elastically, to adapt to the peripheral edge of the deep-drawn part to be able to.
  • thermoforming machines are built because on its own drive for the hold-down device can be dispensed with.
  • stamp 1 shows a deep-drawing tool 1 not according to the invention, which is known per se from one in the Direction of arrow 12 driven and raised There is stamp 3, which carries a stamp tool 4.
  • each hold-down is designed approximately as a stamp, which stamp is round, square, oval or in another way can be profiled and made of an elastomer body 6 exists.
  • the hold-down devices are preferably elongated and approximately cylindrical.
  • This elastomer body is said to have a relatively high resilience have to ensure that when entering of the stamp 3 in the direction of arrow 12 down at the same time the elastomer body 6 deformed so much, that he has a high hold-down force on the deep-drawn part 10 exercises, but at the same time the elastomer body 6 in comes together because he prefers a plastic foam is formed.
  • each Elastomer body 6 integrally formed a brake shoe 8, which either glued as an independent plastic part or is mechanically connected to the elastomer body.
  • the brake shoe integrally connected to the elastomer body is and in the same foaming process with different Hardness was produced.
  • Hold-down devices can be dispensed with at all can, because the hold-down 5 piece by piece on the circumference are distributed.
  • the recesses 7 can be at different heights or with different depths at the same height of assigned hold-downs to the Hold-down force at one point compared to one influence other place.
  • Figure 2 shows that around the stamp 3 around circumferential groove 13 is formed, in which groove the previously mentioned recesses 7 for receiving the hold-down device 5 are formed.
  • Figure 3 shows that the brake shoe is not only piece by piece each on the underside of the elastomer body can be formed, but that the brake shoe as Brake shoe ring 9 can be formed on the piece put the hold-down 5 on.
  • This brake shoe ring is preferably made of an elastomeric plastic material trained, which the circumferential edge adapts in the area of the die 11.
  • FIGS. 4, 5 there is also an irregular distribution the hold-down 5 possible in stamp 3.
  • the figures show that the hold-down 5 is not must be installed at the same height. It is of course not necessary, the hold-down to attach on a circle, but it can be any any geometric shape can be selected.
  • the hold-down devices are 5 not only with a brake shoe 8 but also with one Provide intermediate piece 14, the same as the brake shoe 8th manufactured in one piece with the hold-down can be or manufactured by him and then in appropriately attached.
  • This intermediate piece can e.g. for setting special suspension and damping characteristics the hold-down 5 serve.
  • the die 2 is at the opposite point provided with a counter holder 15.
  • the present invention thus becomes inexpensive Thermoforming tool that can be manufactured and used flexibly provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Passenger Equipment (AREA)
  • Food-Manufacturing Devices (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manipulator (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Claims (4)

  1. Outil d'emboutissage comportant plusieurs serre-flans (5) fixés directement au poinçon (3), et une matrice, caractérisé en ce que chaque serre-flan (5) est fixé au poinçon (3) de manière à pouvoir être changé et comporte un corps en élastomère qui est pourvu d'un segment de frein (8) et d'une pièce intermédiaire (14).
  2. Outil d'emboutissage selon la revendication 1, caractérisé en ce que le poinçon (3) comporte des serre-flans (5) individuels et séparés les uns des autres.
  3. Outil d'emboutissage selon la revendication 2, caractérisé en ce que plusieurs corps (6) sollicitent un segment de frein commun, en particulier en forme d'anneau de segment de frein (9).
  4. Outil d'emboutissage selon la revendication 2 ou 3, caractérisé en ce qu'il est prévu plusieurs corps (6) avec des élasticités différentes, et/ou le type de montage des corps (6) garantit une élasticité différente.
EP96901787A 1995-02-07 1996-02-06 Outil d'emboutissage profond a serre-flan integre Expired - Lifetime EP0808224B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19503874 1995-02-07
DE19503874A DE19503874A1 (de) 1995-02-07 1995-02-07 Tiefziehwerkzeug mit integriertem Niederhalter
PCT/EP1996/000485 WO1996024449A1 (fr) 1995-02-07 1996-02-06 Outil d'emboutissage profond a serre-flan integre

Publications (2)

Publication Number Publication Date
EP0808224A1 EP0808224A1 (fr) 1997-11-26
EP0808224B1 true EP0808224B1 (fr) 2000-11-02

Family

ID=7753296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96901787A Expired - Lifetime EP0808224B1 (fr) 1995-02-07 1996-02-06 Outil d'emboutissage profond a serre-flan integre

Country Status (7)

Country Link
US (1) US6354131B1 (fr)
EP (1) EP0808224B1 (fr)
JP (1) JPH11508490A (fr)
AT (1) ATE197258T1 (fr)
AU (1) AU4622596A (fr)
DE (2) DE19503874A1 (fr)
WO (1) WO1996024449A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016166701A1 (fr) * 2015-04-16 2016-10-20 Euromeccanica S.R.L. A Socio Unico Répartiteur de pression pour le pressage de métaux et matrice utilisant ledit répartiteur de pression

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19646122C2 (de) * 1996-11-08 2003-04-10 Forschungsges Umformtechnik Niederhalter für die segmentweise Steuerung des Materialflusses
JP4643777B2 (ja) * 1999-06-18 2011-03-02 日新製鋼株式会社 サイディング材用金属面板の製造方法及びプレス成形装置
GB0119206D0 (en) * 2001-08-06 2001-09-26 Giantcode Tools As Blank holder means for drawing press
DE10160410A1 (de) * 2001-12-10 2003-06-18 Schuler Smg Gmbh & Co Kg Tiefziehpresse
US6668612B2 (en) * 2002-02-21 2003-12-30 General Motors Corporation Device for holding a sheet metal blank in a forming press
JP4085828B2 (ja) * 2003-01-31 2008-05-14 株式会社ジェイテクト トルク検出装置
JP3983194B2 (ja) * 2003-04-01 2007-09-26 トヨタ自動車株式会社 プレス成形用金型
US7980158B1 (en) * 2007-04-19 2011-07-19 The United States Of America As Represented By The Secretary Of The Army Polyurethane press tooling components
JP4306774B2 (ja) * 2007-08-20 2009-08-05 トヨタ自動車株式会社 プレス成形用金型およびプレス成形方法
JP5073413B2 (ja) * 2007-08-21 2012-11-14 本田技研工業株式会社 プレス成形用金型
JP2010167480A (ja) * 2009-01-26 2010-08-05 Honda Motor Co Ltd プレス成形用金型及びプレス成形方法
FR3018709B1 (fr) * 2014-03-20 2016-03-25 Peugeot Citroen Automobiles Sa Outillage d'emboutissage pour la conformation d'une piece emboutie
JP5934272B2 (ja) * 2014-03-20 2016-06-15 富士重工業株式会社 熱間プレス深絞り成形方法および装置
JP7140132B2 (ja) * 2017-10-12 2022-09-22 日本製鉄株式会社 キャラクターラインを有する外板パネルの製造方法および製造装置
US11945179B2 (en) * 2019-02-07 2024-04-02 Mitsubishi Heavy Industries, Ltd. Method and device for molding laminate

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE123718C (fr)
US682866A (en) * 1901-02-25 1901-09-17 Otto Asche Drawing-die.
US1970134A (en) * 1932-07-29 1934-08-14 Oilgear Co Hydraulic press
FR884771A (fr) 1940-02-12 1943-08-26 Helfeda S A Procédé d'emboutissage et dispositif pour sa mise en oeuvre
US2321075A (en) * 1941-06-10 1943-06-08 Brewster Aeronautical Corp Means for forming sheet metal
US2354005A (en) * 1941-10-07 1944-07-18 Hydraulic Dev Corp Inc Device for metal drawing
US2980046A (en) * 1955-04-14 1961-04-18 Lockheed Aircraft Corp Draw dies for multiple action press
DE2146461A1 (de) 1971-09-16 1973-03-22 Siemag Siegener Masch Bau Folien-tiefziehmaschine
US4745792A (en) * 1986-10-14 1988-05-24 Aluminum Company Of America Blankholder for a draw press
JPS63140728A (ja) * 1986-12-01 1988-06-13 Hitachi Ltd 二段絞り型
EP0344386A1 (fr) 1988-06-03 1989-12-06 Regie Nationale Des Usines Renault Outillage d'emboutissage de tôles à taux de portée élevé
JPH03258419A (ja) * 1990-03-06 1991-11-18 Toyota Motor Corp 絞り成形方法
JPH04100639A (ja) 1990-08-15 1992-04-02 Hitachi Ltd ジルコニウム板材のプレス成形装置およびプレス成形方法
US5505071A (en) * 1994-05-06 1996-04-09 Owens-Corning Fiberglas Technology, Inc. Apparatus and method for retention of thin foils during forming

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016166701A1 (fr) * 2015-04-16 2016-10-20 Euromeccanica S.R.L. A Socio Unico Répartiteur de pression pour le pressage de métaux et matrice utilisant ledit répartiteur de pression

Also Published As

Publication number Publication date
JPH11508490A (ja) 1999-07-27
DE59606093D1 (de) 2000-12-07
US6354131B1 (en) 2002-03-12
ATE197258T1 (de) 2000-11-15
EP0808224A1 (fr) 1997-11-26
DE19503874A1 (de) 1996-08-08
AU4622596A (en) 1996-08-27
WO1996024449A1 (fr) 1996-08-15

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