EP0858848A1 - Appareil de formage - Google Patents

Appareil de formage Download PDF

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Publication number
EP0858848A1
EP0858848A1 EP98102248A EP98102248A EP0858848A1 EP 0858848 A1 EP0858848 A1 EP 0858848A1 EP 98102248 A EP98102248 A EP 98102248A EP 98102248 A EP98102248 A EP 98102248A EP 0858848 A1 EP0858848 A1 EP 0858848A1
Authority
EP
European Patent Office
Prior art keywords
forming device
clamping
jaw
pressure chamber
counter
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
EP98102248A
Other languages
German (de)
English (en)
Other versions
EP0858848B1 (fr
Inventor
Peter Dr. Bieling
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.)
Anton Bauer Werkzeug- und Maschinenbau & Co KG GmbH
Original Assignee
Anton Bauer Werkzeug- und Maschinenbau & Co KG 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
Priority to DE19705244A priority Critical patent/DE19705244A1/de
Application filed by Anton Bauer Werkzeug- und Maschinenbau & Co KG GmbH filed Critical Anton Bauer Werkzeug- und Maschinenbau & Co KG GmbH
Priority to DE29823606U priority patent/DE29823606U1/de
Priority to EP98102248A priority patent/EP0858848B1/fr
Publication of EP0858848A1 publication Critical patent/EP0858848A1/fr
Priority to US09/154,725 priority patent/US6041633A/en
Application granted granted Critical
Publication of EP0858848B1 publication Critical patent/EP0858848B1/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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/025—Means for controlling the clamping or opening of the moulds
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/039—Means for controlling the clamping or opening of the moulds

Definitions

  • the invention relates to a forming device, in particular internal high-pressure forming device, with a multi-part mold and one against the parts of the mold the clamping device holding the forming application together.
  • the shaping device according to the invention which achieves this object is characterized in that that the clamping device and / or the mold at least one, deformations of the mold cavity at least partially compensating during forming Counter-tensioning device.
  • a certain deformation of the tensioning device is taken or / and tool in purchase, but generated by applying clamping force one or more provided in the clamping device and / or the tool Counter clamping devices for compensating deformations, so that the mold cavity largely maintains its shape.
  • clamping and tool parts are less stable with less effort Material are made. This advantageously also reduces the mass and weight of the Total forming device.
  • counter-tensioning devices can be used are, in a preferred embodiment of the invention, the counter-tensioning device a back pressure chamber.
  • the back pressure chamber can be subjected to the working pressure, which is advantageous a device used for pressurizing the workpiece also for the Back pressure chamber can be used.
  • the back pressure chamber is in one against the Forming tool adjacent clamping jaws provided, e.g. between the back pressure chamber and the tool provided a relatively thin clamping jaw wall can be, which is under the influence of the back pressure against the tool bulges and thus counteracts yielding of the clamping jaw or / and tool.
  • a short-stroke cylinder in which the back pressure chamber is formed, engage the jaws.
  • the clamping jaw lies against the mold with one by pressurizing the back pressure chamber against the rest of the jaws movable part of the jaw, this movable part in particular in the manner of a guided in the jaw Pressure piston is formed.
  • the clamping piston moves Maintaining a suitable pressure in the back pressure chamber accordingly, so that the tool part against it remains in place.
  • This embodiment with a movable jaw part is particularly advantageous in an internal high-pressure forming device, in which the clamping jaws via a bayonet ring can be brought into the clamping system against the tool, one being a Tool holder for the bayonet ring and a counter bearing forms. Due to the possibility of compensation via the jaws with the back pressure chamber Above all, defuse the strength requirements for the locking parts the bayonet lock, which therefore need to be less solid.
  • the back pressure chamber is including a pressure connection channel, provided with a sealing lining, which, in particular, through a plastic membrane that fills the counter-pressure chamber like a balloon can be formed.
  • a sealing liner is mainly used for the embodiment mentioned with a pressure piston-like jaw part is advantageous, because then the pressure piston is not particularly sealed in its guidance needs.
  • the drawing shows a hydroforming device in a sectional view.
  • a pot-shaped tool holder in the figure a bottom wall 2 and a vertical cylinder wall 3.
  • a bottom wall 2 In the bottom wall 2 is an opening 4 extending over a large part of the wall surface is provided.
  • an opening 4 extending over a large part of the wall surface is provided.
  • opposite openings 5 and 6 are formed in the cylinder wall 3.
  • the reference numeral 7 designates a clamping jaw which, on the other hand, is over a hydraulic cylinder 8 rotatable bayonet ring 9 is engaged.
  • a clamping jaw counter plate 10 is arranged opposite the clamping jaw 7, which rests on a shoulder formed by the remaining part of the base plate 2.
  • a mold is between the clamping jaw 7 and the clamping counter plate 10 arranged with an upper part 11 and a lower part 12.
  • a workpiece 13 formed by reshaping a tube.
  • the clamping jaw 7 has an upper part 14 with an annular recess into which an annular web 15 protruding inwards from the bayonet ring engages. Below the ring web 14, the clamping jaw 7 is slightly expanded in diameter.
  • the reference numeral 16 denotes a lower part of the clamping jaw 7, which has an upper section which is guided in the manner of a pressure piston in a recess in the upper part 14 of the clamping jaw 7 and can be placed against the underside of the upper jaw part 14 with an annular shoulder 18.
  • a counterpressure chamber 17 remains which is formed by the upper jaw part 14 and the lower jaw part 16 and can be acted upon by fluid pressure via a connecting channel 19.
  • the back pressure chamber 17 and the connecting channel 19 are lined with a sealing plastic membrane 20.
  • the bayonet ring 9 engages with locking teeth 21 arranged on its circumference in a Ring recess 22 in the cylinder wall 3, the locking teeth in a rotational position reach behind corresponding locking teeth 23 on the cylinder wall 3.
  • the bayonet ring can be lifted upwards with the clamping jaw 7 are, the locking teeth 21 of the bayonet ring 9 between the locking teeth 23rd be passed through on the cylinder wall 3.
  • the bayonet ring 9 with the clamping jaw 7 first lowered, the locking teeth 21 of the bayonet ring 9 between the locking teeth 23 on the upper edge of the cylinder wall 3 of the tool holder 1.
  • the bayonet ring is then rotated, the Teeth 21 of the bayonet ring 9 engage behind the locking teeth 23 on the cylinder wall 3.
  • the fluid pressure supply lines 26 and 27 in the manner shown in the figure via sealing means, not shown, to the tubular Workpiece 13 attached and a fluid, in the present case water, under pressure in introduced the workpiece.
  • a fluid in the present case water
  • fluid is injected into the back pressure chamber at the same pressure 17 let in.
  • the tubular workpiece deforms and increasingly creates the mold walls of the tool parts 11 and 12, which in particular in the vertical Direction between the jaws 7 and the upper tool part 11 or the jaw counter plate 10 and the lower tool part 12 effective pressing force is increased.
  • the tool holder 1 with the jaw counter plate 10 and the clamping jaw 7 formed clamping device, in particular in the region of the bayonet ring 9 is counteracted in that the prevailing in the back pressure chamber 17 Back pressure moves the lower jaw part 18 downwards to compensate, which thus holds the workpiece parts in place while keeping the height of the mold cavity constant Job holds.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
EP98102248A 1997-02-12 1998-02-10 Appareil de formage Expired - Lifetime EP0858848B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19705244A DE19705244A1 (de) 1997-02-12 1997-02-12 Umformvorrichtung
DE29823606U DE29823606U1 (de) 1997-02-12 1998-02-10 Umformvorrichtung
EP98102248A EP0858848B1 (fr) 1997-02-12 1998-02-10 Appareil de formage
US09/154,725 US6041633A (en) 1997-02-12 1998-09-17 Forming apparatus

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19705244A DE19705244A1 (de) 1997-02-12 1997-02-12 Umformvorrichtung
DE19705244 1997-02-12
DE29823606U DE29823606U1 (de) 1997-02-12 1998-02-10 Umformvorrichtung
EP98102248A EP0858848B1 (fr) 1997-02-12 1998-02-10 Appareil de formage
US09/154,725 US6041633A (en) 1997-02-12 1998-09-17 Forming apparatus

Publications (2)

Publication Number Publication Date
EP0858848A1 true EP0858848A1 (fr) 1998-08-19
EP0858848B1 EP0858848B1 (fr) 2001-10-17

Family

ID=27438546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98102248A Expired - Lifetime EP0858848B1 (fr) 1997-02-12 1998-02-10 Appareil de formage

Country Status (3)

Country Link
US (1) US6041633A (fr)
EP (1) EP0858848B1 (fr)
DE (2) DE19705244A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1080803A3 (fr) * 1999-08-31 2002-07-10 Dana Corporation Presse mécanique adapté pour faire l'hydroformage

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6164108A (en) * 1998-07-21 2000-12-26 Aquaform, Inc. Hydro compression tube forming die apparatus and method for making the same
DE19833550B4 (de) * 1998-07-24 2005-10-27 Tower Automotive Hydroforming Gmbh & Co. Kg Umformwerkzeug zum Umformen mittels eines Druckmittels
DE19858837B4 (de) * 1998-12-19 2005-03-17 Bayerische Motoren Werke Ag Presse zum Innenhochdruckumformen
NO991608L (no) * 1999-03-31 2000-10-02 Norsk Hydro As Feste/lÕseanordning
CA2312229C (fr) * 1999-06-21 2007-06-19 Aida Engineering Co., Ltd. Methode et dispositif d'hydroformage
DE19957888C2 (de) * 1999-12-01 2002-11-14 Benteler Werke Ag Vorrichtung zum hydraulischen Hochdruckformen eines rohrförmigen Bauteils oder einer Platine
CA2350731C (fr) * 2000-06-16 2004-12-07 Toyota Jidosha Kabushiki Kaisha Appareil et methode de verrouillage de moules
CA2440722A1 (fr) * 2000-12-12 2002-06-20 Schweitzer, Karl Heinz Dispositif et procede de formage sous haute pression interne (innenhochdruckumformung : ihu) et systeme d'outillage de formage sous haute pression interne
DE10113224A1 (de) * 2001-03-19 2002-10-02 Ap & T Schaefer Technologie Gm Schließeinheit für gegen aufgehende Kräfte zusammenzupressende Werkzeuge
DE10139135A1 (de) * 2001-08-09 2003-02-20 Bayerische Motoren Werke Ag Umformvorrichtung, insbesondere zur Innenhochdruckumformung
US6446476B1 (en) * 2001-11-30 2002-09-10 General Motors Corporation Hydroforming method and apparatus
US7509827B2 (en) * 2002-05-08 2009-03-31 Avure Technologies Ab Device and method for expansion forming
FR2850593B1 (fr) * 2003-01-31 2006-09-08 Bourgogne Hydro Technologie Dispositif d'hydroformage d'un corps creux
DE10334660B3 (de) † 2003-07-30 2004-11-04 Theodor Gräbener GmbH & Co. KG Vorrichtung zur Herstellung von Formteilen durch Innenhochdruckumformung
US7251973B2 (en) * 2005-09-12 2007-08-07 Gharib Mohamed T Hydroforming apparatus
JP4374399B1 (ja) * 2008-07-04 2009-12-02 新日本製鐵株式会社 ハイドロフォーム加工方法及びハイドロフォーム加工品
ATE526096T1 (de) * 2009-02-20 2011-10-15 Theodor Graebener Gmbh & Co Kg Hydroformwerkzeug
CN103212619B (zh) * 2013-04-10 2015-04-22 宁波帕沃尔精密液压机械有限公司 一种变合模力的管材内高压成形装置和方法
DE202017106654U1 (de) 2017-11-03 2018-01-11 Wvl-Werkzeug- Und Vorrichtungsbau Lichtenstein Gmbh Formbackensystem eines Innenhochdruck-Umformwerkzeuges
EP4197665A4 (fr) * 2020-08-11 2024-03-20 Sumitomo Heavy Industries, LTD. Dispositif de moulage et tuyau métallique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1370852A (fr) * 1963-07-19 1964-08-28 E Mabille Ets Caissette métallique à munitions monobloc à bossages externes obtenus par expansion hydraulique
DE1777176A1 (de) * 1966-01-29 1971-04-01 Vitkovice Zelezarny Schmiedepresse zur Herstellung von Eisenbahnradachsen
US5419171A (en) * 1993-10-14 1995-05-30 The Boeing Company Isostatic bulge forming
DE4432692A1 (de) * 1994-09-14 1996-03-21 Huber & Bauer Gmbh Vorrichtung zum Innenhochdruckumformen eines U-förmigen Rohlings

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU653006A1 (ru) * 1977-10-03 1979-03-25 Днепропетровский Ордена Трудового Красного Знамени Металлургический Институт Матрица к установке дл раздачи полых заготовок внутренним давлением
JPS5522423A (en) * 1978-08-03 1980-02-18 Nippon Baruji Kogyo Kk Operating method of lateral push cylinder in hydraulic bulge forming device
DE2935086C2 (de) * 1979-08-28 1982-04-01 Mannesmann AG, 4000 Düsseldorf Verfahren und Vorrichtung zur Herstellung von abgesetzten Hohlkörpern stark unterschiedlicher Querschnittsformen
JPS6082229A (ja) * 1983-10-08 1985-05-10 Mori Tekko Kk バルジ加工方法
JPS6096333A (ja) * 1983-10-28 1985-05-29 Hitachi Ltd 円筒容器の保持方法
SU1176994A1 (ru) * 1984-04-23 1985-09-07 Ленинградский Ордена Ленина Политехнический Институт Им.М.И.Калинина Устройство дл гидроштамповки полых деталей
SU1433527A2 (ru) * 1987-03-18 1988-10-30 Ленинградский Политехнический Институт Им.М.И.Калинина Устройство дл гидравлической штамповки полых деталей
DE4201819A1 (de) * 1991-01-28 1992-07-30 Mannesmann Ag Verfahren und vorrichtung zum hydraulischen aufweiten von rohrfoermigen hohlprofilen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1370852A (fr) * 1963-07-19 1964-08-28 E Mabille Ets Caissette métallique à munitions monobloc à bossages externes obtenus par expansion hydraulique
DE1777176A1 (de) * 1966-01-29 1971-04-01 Vitkovice Zelezarny Schmiedepresse zur Herstellung von Eisenbahnradachsen
US5419171A (en) * 1993-10-14 1995-05-30 The Boeing Company Isostatic bulge forming
DE4432692A1 (de) * 1994-09-14 1996-03-21 Huber & Bauer Gmbh Vorrichtung zum Innenhochdruckumformen eines U-förmigen Rohlings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1080803A3 (fr) * 1999-08-31 2002-07-10 Dana Corporation Presse mécanique adapté pour faire l'hydroformage

Also Published As

Publication number Publication date
US6041633A (en) 2000-03-28
DE19705244A1 (de) 1998-08-13
EP0858848B1 (fr) 2001-10-17
DE29823606U1 (de) 1999-09-02

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