EP0835699A3 - Hydraulic deep drawing apparatus - Google Patents

Hydraulic deep drawing apparatus Download PDF

Info

Publication number
EP0835699A3
EP0835699A3 EP97117310A EP97117310A EP0835699A3 EP 0835699 A3 EP0835699 A3 EP 0835699A3 EP 97117310 A EP97117310 A EP 97117310A EP 97117310 A EP97117310 A EP 97117310A EP 0835699 A3 EP0835699 A3 EP 0835699A3
Authority
EP
European Patent Office
Prior art keywords
hold
load area
deep drawing
drawing apparatus
hydraulic
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
EP97117310A
Other languages
German (de)
French (fr)
Other versions
EP0835699A2 (en
EP0835699B1 (en
Inventor
Klaus-Jürgen Dr. Pahl
Stephan Kruse
Dieter Therolf
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.)
Maschinenfabrik J Dieffenbacher GmbH and Co
Dieffenbacher GmbH Maschinen und Anlagenbau
Original Assignee
Maschinenfabrik J Dieffenbacher GmbH and Co
Dieffenbacher GmbH Maschinen und Anlagenbau
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 Maschinenfabrik J Dieffenbacher GmbH and Co, Dieffenbacher GmbH Maschinen und Anlagenbau filed Critical Maschinenfabrik J Dieffenbacher GmbH and Co
Publication of EP0835699A2 publication Critical patent/EP0835699A2/en
Publication of EP0835699A3 publication Critical patent/EP0835699A3/en
Application granted granted Critical
Publication of EP0835699B1 publication Critical patent/EP0835699B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B21D24/08—Pneumatically or hydraulically loaded blank holders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Lubricants (AREA)
  • Press Drives And Press Lines (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Formation And Processing Of Food Products (AREA)

Abstract

The device is arranged so that a hold-down force for the deep drawing of a workpiece (19) is divided between an outer load area and an inner load area. The outer load area is subjected to a controlled base load by a number of hydraulic hold-down cylinders (13), which act on a tool base plate (11) that is arranged below a hold-down plate (10). The inner load area includes a number of multi-point pressure or forming pins (5,20), which act directly on the hold-down plate. The pins are energised individually or in groups by controlled short stroke hydraulic cylinders (14).
EP97117310A 1996-10-08 1997-10-07 Hydraulic deep drawing apparatus Expired - Lifetime EP0835699B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19641411 1996-10-08
DE19641411A DE19641411A1 (en) 1996-10-08 1996-10-08 Hydraulic deep-drawing device

Publications (3)

Publication Number Publication Date
EP0835699A2 EP0835699A2 (en) 1998-04-15
EP0835699A3 true EP0835699A3 (en) 1998-05-13
EP0835699B1 EP0835699B1 (en) 2002-02-20

Family

ID=7808139

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97117310A Expired - Lifetime EP0835699B1 (en) 1996-10-08 1997-10-07 Hydraulic deep drawing apparatus

Country Status (8)

Country Link
US (1) US5979211A (en)
EP (1) EP0835699B1 (en)
CN (1) CN1079305C (en)
AT (1) ATE213437T1 (en)
BR (1) BR9704948A (en)
DE (2) DE19641411A1 (en)
DK (1) DK0835699T3 (en)
TW (1) TW352347B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK173519B1 (en) 1999-06-21 2001-01-29 Hydraulico As Tool for press molding of metal plate and method for regulating a surface pressure using such a tool
US6418824B1 (en) 2000-03-03 2002-07-16 Pcps Limited Partnership Two stage punch press actuator with output drive shaft position sensing
KR100421799B1 (en) * 2000-09-25 2004-03-10 주식회사 위너 Double action Hydraulic-pressure Press
DE10160410A1 (en) * 2001-12-10 2003-06-18 Schuler Smg Gmbh & Co Kg Deep Drawing Press
DE10210573A1 (en) * 2002-03-11 2003-10-02 Dieffenbacher Gmbh Maschf Hydroelastic deep-drawing device
JP3983194B2 (en) * 2003-04-01 2007-09-26 トヨタ自動車株式会社 Press mold
DE10331939B4 (en) * 2003-07-15 2014-09-18 Bayerische Motoren Werke Aktiengesellschaft sheet-metal forming
DE10350089B4 (en) * 2003-10-27 2007-04-05 Alcan Deutschland Gmbh Deep drawing device for deep drawing a workpiece
US7237423B1 (en) 2004-11-12 2007-07-03 Miller Tool And Die Company Inc. Apparatus for stretch forming blanks
US20080060407A1 (en) * 2006-09-08 2008-03-13 Samuel Stamping Technologies High definition door skin and method of manufacturing the same
CN100478093C (en) * 2007-06-14 2009-04-15 吉林大学 Section-drawing clamping device
CN101428318B (en) * 2008-09-09 2011-02-16 中国航空工业第一集团公司北京航空制造工程研究所 Compound punch for multi-point forming mould
US8756970B2 (en) * 2011-03-14 2014-06-24 Ford Global Technologies, Llc Method of drawing a blank by preforming a channel in a preform that is subsequently drawn into a die cavity
DE102012018606A1 (en) * 2012-09-20 2014-03-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Deep-drawing tool and method for deep-drawing a workpiece
KR101509708B1 (en) 2013-09-05 2015-04-07 현대자동차 주식회사 Cushion pin device for press
US10695814B2 (en) 2014-03-04 2020-06-30 Nippon Steel Corporation Method for manufacturing press-formed product, device for manufacturing press-formed product, mandrel, and press-formed product
DE102016009416B4 (en) 2016-06-22 2018-09-20 Horst Baltschun Energy-efficient press with stable ram guide
US10933458B2 (en) * 2018-12-19 2021-03-02 Fca Us Llc Stretch forming die
KR20210155437A (en) * 2020-06-15 2021-12-23 삼성디스플레이 주식회사 Window molding apparatus and window molding method using the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745792A (en) * 1986-10-14 1988-05-24 Aluminum Company Of America Blankholder for a draw press
DE3724382A1 (en) * 1987-07-23 1989-02-02 Uniplanung Tiefziehtechnik Gmb Tool for drawing sheet-metal shaped parts
EP0453955A1 (en) * 1990-04-23 1991-10-30 Maschinenfabrik Müller-Weingarten AG Drawing device in a press for drawing of sheet metal formed parts
DE4435069A1 (en) * 1994-09-30 1996-04-04 Dieffenbacher Gmbh Maschf Hydraulic deep drawing unit for presses

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1970134A (en) * 1932-07-29 1934-08-14 Oilgear Co Hydraulic press
US3420089A (en) * 1966-02-16 1969-01-07 Mc Donnell Douglas Corp Variable pressure drawpress and method
BE1004564A3 (en) * 1990-08-30 1992-12-15 Cockerill Rech & Dev Control device force clamp blank in a press.
EP0531141B1 (en) * 1991-09-04 1995-03-22 Toyota Jidosha Kabushiki Kaisha Hydraulic cushioning system for press, having shut-off valve for disconnection of pressure-pin cylinders from power supply upon contact of movable die with workpiece
JP2689855B2 (en) * 1993-05-25 1997-12-10 トヨタ自動車株式会社 Air pressure setting method and device for die cushion device
JP2812201B2 (en) * 1994-07-15 1998-10-22 トヨタ自動車株式会社 Press equipment
CN1077465C (en) * 1994-09-30 2002-01-09 J·迪芬巴赫机器制造有限公司 Hydraulic deep dawing equipment of a pressing machine for mfg. streched thin plate former
JPH0929349A (en) * 1995-07-18 1997-02-04 Toyota Motor Corp Drawing method and its device using variable bead

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745792A (en) * 1986-10-14 1988-05-24 Aluminum Company Of America Blankholder for a draw press
DE3724382A1 (en) * 1987-07-23 1989-02-02 Uniplanung Tiefziehtechnik Gmb Tool for drawing sheet-metal shaped parts
EP0453955A1 (en) * 1990-04-23 1991-10-30 Maschinenfabrik Müller-Weingarten AG Drawing device in a press for drawing of sheet metal formed parts
DE4435069A1 (en) * 1994-09-30 1996-04-04 Dieffenbacher Gmbh Maschf Hydraulic deep drawing unit for presses

Also Published As

Publication number Publication date
ATE213437T1 (en) 2002-03-15
BR9704948A (en) 2000-06-06
EP0835699A2 (en) 1998-04-15
CN1079305C (en) 2002-02-20
DE59706423D1 (en) 2002-03-28
TW352347B (en) 1999-02-11
CN1178729A (en) 1998-04-15
DK0835699T3 (en) 2002-06-03
EP0835699B1 (en) 2002-02-20
US5979211A (en) 1999-11-09
DE19641411A1 (en) 1998-04-09

Similar Documents

Publication Publication Date Title
EP0835699A3 (en) Hydraulic deep drawing apparatus
ES2083563T3 (en) APPARATUS AND METHOD FOR HYDROCONFORMING METAL SHEET.
CA2077595A1 (en) Hydraulic cushioning system for press, having hydraulic power supply including means for adjusting initial pressure to be applied to pressure-pin cylinders
EP1084798A3 (en) Hydraulic press tool
DE3163953D1 (en) Device working like a stamp or press
MY132241A (en) Method and apparatus for carrying out an operation on a mechanical workpiece
DE59710835D1 (en) FINE CUTTING PRESS WITH RING POINT AND COUNTERCYLINDER
DE3663460D1 (en) Tool-changing arrangement for a multistage metal-forming machine tool
CA2016726A1 (en) Marking tool holder for a punch press
CA2124173A1 (en) Method and Apparatus for Adjusting Pressure of Cushioning Pneumatic Cylinder Pressure on Press, When Cushion Platen is at Its Setup Position
CA2102360A1 (en) Method and Device for Controlling, Checking or Optimizing Pressure of Cushion Pin Cylinders of Press by Discharging Fluid or Initial Pressure
ES2004352A6 (en) Method and apparatus for reforming relatively imprecisely positioned members
ES8704094A1 (en) Drawing apparatus for presses.
DE59405430D1 (en) Method and device for carrying out work steps in a printing press
EP0384340A3 (en) Apparatus for scribing grain-oriented electrical steel strip
JPS6434628A (en) Work positioning and clamping equipment for machine tool
WO2004022281A1 (en) Tool for piercing nut
SU1690922A1 (en) Apparatus for feeding strip and belt material to two working zone of die set
ES2032261A6 (en) Oleopneumatic intensifier
DE3874851D1 (en) DEVICE FOR CHANGING TOOLS IN HARDENING MACHINES.
DE29706274U1 (en) Device for producing parts with an outer profile
DE50307782D1 (en) DEVICE FOR FLUID PRESSING OF WORKPIECES AND METHOD FOR OPERATING SUCH A DEVICE
IT1153142B (en) Machine tool clamping pallet positioner
ATE139726T1 (en) ARRANGEMENT FOR CONTROLLING A PLATE PRESS
PT1092498E (en) DEVICE AND PROCESS INTENDED FOR THE ASSEMBLY OF FLEXAO

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

17P Request for examination filed

Effective date: 19981113

AKX Designation fees paid

Free format text: AT CH DE DK ES FR GB GR IT LI SE

RBV Designated contracting states (corrected)

Designated state(s): AT CH DE DK ES FR GB GR IT LI SE

17Q First examination report despatched

Effective date: 19990407

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020220

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020220

REF Corresponds to:

Ref document number: 213437

Country of ref document: AT

Date of ref document: 20020315

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59706423

Country of ref document: DE

Date of ref document: 20020328

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
ET Fr: translation filed
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20020220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020829

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021031

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021031

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20021121

BERE Be: lapsed

Owner name: MASCHINENFABRIK J. *DIEFFENBACHER G.M.B.H. & CO.

Effective date: 20021031

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060630

REG Reference to a national code

Ref country code: FR

Ref legal event code: D3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20071029

Year of fee payment: 11

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20090630

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20101028

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20111019

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20111223

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111007

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59706423

Country of ref document: DE

Representative=s name: ANTON HARTDEGEN, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59706423

Country of ref document: DE

Representative=s name: HARTDEGEN, ANTON, DIPL.-ING.(FH), DE

Effective date: 20121116

Ref country code: DE

Ref legal event code: R081

Ref document number: 59706423

Country of ref document: DE

Owner name: DIEFFENBACHER GMBH MASCHINEN- UND ANLAGENBAU, DE

Free format text: FORMER OWNER: DIEFFENBACHER GMBH + CO. KG, 75031 EPPINGEN, DE

Effective date: 20121116

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130501

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59706423

Country of ref document: DE

Effective date: 20130501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081031