EP0333052A3 - Drawing apparatus for shaping sheet metal blanks - Google Patents

Drawing apparatus for shaping sheet metal blanks Download PDF

Info

Publication number
EP0333052A3
EP0333052A3 EP19890104248 EP89104248A EP0333052A3 EP 0333052 A3 EP0333052 A3 EP 0333052A3 EP 19890104248 EP19890104248 EP 19890104248 EP 89104248 A EP89104248 A EP 89104248A EP 0333052 A3 EP0333052 A3 EP 0333052A3
Authority
EP
European Patent Office
Prior art keywords
flow paths
drawing apparatus
pressure
annular piston
cylinder spaces
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
EP19890104248
Other languages
German (de)
Other versions
EP0333052B1 (en
EP0333052A2 (en
Inventor
Erhardt Reitter
Karl Hehl
Herbert Dipl.-Ing. Kraibuhler
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT89104248T priority Critical patent/ATE91653T1/en
Publication of EP0333052A2 publication Critical patent/EP0333052A2/en
Publication of EP0333052A3 publication Critical patent/EP0333052A3/en
Application granted granted Critical
Publication of EP0333052B1 publication Critical patent/EP0333052B1/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
    • B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
    • B21D24/10—Devices controlling or operating blank holders independently, or in conjunction with dies
    • B21D24/14—Devices controlling or operating blank holders independently, or in conjunction with dies pneumatically or hydraulically

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Control Of Presses (AREA)
  • Press Drives And Press Lines (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Pens And Brushes (AREA)

Abstract

The motion of the blank holder (15) can be converted by a hydraulic unit of the drawing apparatus into a simultaneous but opposite motion of the drawing punch (17). The hydraulic unit has a central working piston (12), an annular piston (13) surrounding the latter, and a cylinder (10d) surrounding the annular piston. The working piston (12) and the annular piston (17) can be pressurised from hydraulically separated cylinder spaces (51, 52; 48) which communicate with one another via at least two alternative flow paths (lines 20; 20a; 20b). Due to their different hydraulic design, the flow paths entail a pressure variation on a different pressure level in the intercommunicating cylinder spaces (51, 52; 48). A pressure transducer (21) detecting the pressure of the hydraulic fluid in the cylinder spaces (51, 52; 48) connects up the alternative flow paths when limiting pressures are exceeded. It is thereby possible to manufacture even drawn components which are extremely difficult as regards deformation profile and/or material and/or drawing depth without the necessity to sacrifice the cost- and space-saving construction of the drawing apparatus. <IMAGE>
EP89104248A 1988-03-12 1989-03-10 Drawing apparatus for shaping sheet metal blanks Expired - Lifetime EP0333052B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89104248T ATE91653T1 (en) 1988-03-12 1989-03-10 DRAWING TOOL FOR FORMING SHEET METAL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3808262 1988-03-12
DE3808262 1988-03-12

Publications (3)

Publication Number Publication Date
EP0333052A2 EP0333052A2 (en) 1989-09-20
EP0333052A3 true EP0333052A3 (en) 1990-09-26
EP0333052B1 EP0333052B1 (en) 1993-07-21

Family

ID=6349548

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89104248A Expired - Lifetime EP0333052B1 (en) 1988-03-12 1989-03-10 Drawing apparatus for shaping sheet metal blanks

Country Status (6)

Country Link
US (1) US4909061A (en)
EP (1) EP0333052B1 (en)
JP (1) JPH01309798A (en)
AT (1) ATE91653T1 (en)
DE (1) DE58904930D1 (en)
ES (1) ES2043917T3 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3288062B2 (en) * 1991-12-27 2002-06-04 英夫 星 Cylinder type processing equipment
DE4208138A1 (en) * 1992-03-13 1993-09-16 S & S Electronic Gmbh & Co Kg METHOD AND DEVICE FOR MEASURING CONNECTING AND DRAWING FORCE ON CONNECTING CONTACTS
US5419169A (en) * 1992-04-07 1995-05-30 Toyota Jidosha Kabushiki Kaisha Method and apparatus for adjusting press operating conditions depending upon dies used
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
EP0675419B1 (en) * 1994-03-31 1999-05-26 Toyota Jidosha Kabushiki Kaisha Method and apparatus for optimizing press operating condition based on press operating environment and/or physical condition of blank
US6205831B1 (en) * 1998-10-08 2001-03-27 Rayovac Corporation Method for making a cathode can from metal strip
US7337645B2 (en) * 2006-07-27 2008-03-04 Ford Motor Company Draw press with a fixed draw punch and a floating draw punch
BRPI0818695A2 (en) * 2007-10-01 2015-09-01 Inventio Ag Deep inlay device
US9199389B2 (en) 2011-04-11 2015-12-01 Milwaukee Electric Tool Corporation Hydraulic hand-held knockout punch driver
WO2014022534A1 (en) 2012-07-31 2014-02-06 Milwaukee Electric Tool Corporation Multi-operational valve
FR3054968B1 (en) * 2016-08-09 2019-01-25 Adm28 S.Ar.L TOOL, DEVICE AND METHOD FOR INDIRECT ELECTROHYDRAULIC FORMING
CN111322282B (en) * 2020-03-31 2024-06-25 西安麦特沃金液控技术有限公司 Hydraulic drawing system
DE102020113739A1 (en) * 2020-05-20 2021-11-25 Universität Paderborn Load simulation test bench and capacity element for a load simulation test bench
CN111941773B (en) * 2020-08-13 2022-03-04 宁波海洲机械有限公司 High-strength injection molding machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3751962A (en) * 1970-11-06 1973-08-14 Reynolds Metals Co Method and apparatus for making a drawn article
DE3333687A1 (en) * 1983-09-17 1985-03-28 Uniplanung Metall- und Kunststoffengineering GmbH & Co KG, 7552 Durmersheim Device on tools or presses for drawing sheet-metal shaped parts
DE3424262A1 (en) * 1984-06-30 1986-01-09 Uniplanung Metall- und Kunststoffengineering GmbH & Co KG, 7552 Durmersheim Method for drawing sheet-metal shaped parts and a device on drawing tools or drawing presses for carrying out the method
DE3603107A1 (en) * 1986-02-01 1987-08-06 Uniplanung Reitter Blechformsy Die cushion, in particular for use in deep-drawing by means of single-action hydraulic drawing presses
EP0251024A2 (en) * 1986-06-21 1988-01-07 Hehl, Karl Drawing tool

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1967245A (en) * 1931-02-20 1934-07-24 American Can Co Art of drawing
US2609775A (en) * 1949-06-14 1952-09-09 Production Tool & Die Co Inc Hydraulic die
US3372569A (en) * 1963-08-01 1968-03-12 Continental Can Co Die to form and trim a round tapered container in one operation
JPS6096332A (en) * 1983-10-28 1985-05-29 Aida Eng Ltd Drawing die for press machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3751962A (en) * 1970-11-06 1973-08-14 Reynolds Metals Co Method and apparatus for making a drawn article
DE3333687A1 (en) * 1983-09-17 1985-03-28 Uniplanung Metall- und Kunststoffengineering GmbH & Co KG, 7552 Durmersheim Device on tools or presses for drawing sheet-metal shaped parts
DE3424262A1 (en) * 1984-06-30 1986-01-09 Uniplanung Metall- und Kunststoffengineering GmbH & Co KG, 7552 Durmersheim Method for drawing sheet-metal shaped parts and a device on drawing tools or drawing presses for carrying out the method
DE3603107A1 (en) * 1986-02-01 1987-08-06 Uniplanung Reitter Blechformsy Die cushion, in particular for use in deep-drawing by means of single-action hydraulic drawing presses
EP0251024A2 (en) * 1986-06-21 1988-01-07 Hehl, Karl Drawing tool

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 242 (M-417)(1965) 28 Oktober 1985, & JP-A-60 96332 (AIDA ENGINEERING KK) 29 Mai 1985, *

Also Published As

Publication number Publication date
ATE91653T1 (en) 1993-08-15
ES2043917T3 (en) 1994-01-01
JPH01309798A (en) 1989-12-14
EP0333052B1 (en) 1993-07-21
EP0333052A2 (en) 1989-09-20
DE58904930D1 (en) 1993-08-26
US4909061A (en) 1990-03-20

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