CA2143695A1 - Press Having Gas Cylinders or Plastically Deformable Members for Even Distribution of Blank-Holding Force on Pressure Member Through Cushion Pins - Google Patents

Press Having Gas Cylinders or Plastically Deformable Members for Even Distribution of Blank-Holding Force on Pressure Member Through Cushion Pins

Info

Publication number
CA2143695A1
CA2143695A1 CA2143695A CA2143695A CA2143695A1 CA 2143695 A1 CA2143695 A1 CA 2143695A1 CA 2143695 A CA2143695 A CA 2143695A CA 2143695 A CA2143695 A CA 2143695A CA 2143695 A1 CA2143695 A1 CA 2143695A1
Authority
CA
Canada
Prior art keywords
blank
pressure member
holding force
cushion pins
cushion
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
CA2143695A
Other languages
French (fr)
Other versions
CA2143695C (en
Inventor
Kazunari Kirii
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of CA2143695A1 publication Critical patent/CA2143695A1/en
Application granted granted Critical
Publication of CA2143695C publication Critical patent/CA2143695C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • 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
    • 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
    • B21D24/02—Die-cushions

Abstract

A press including force applying means for producing a blank-holding force, a cushion pad which receives the blank-holding force when the cushion pad is lowered, cushion pins disposed on the cushion pad, and a pressure member supported by the upper ends of the cushion pins, so that the blank-holding force is transferred to the pressure member through the cushion pins to hold a blank placed on the pressure member, when the pressure member is moved down during a pressing operation on the blank. A plurality of mutually independent balancing members, such as gas cylinders each filled with a gaseous fluid, or plastically deformable members, are disposed in respective transfer paths of the blank-holding force between the pressure member and the respective cushion pins.
CA002143695A 1994-03-03 1995-03-01 Press having gas cylinders or plastically deformable members for even distribution of blank-holding force on pressure member through cushion pins Expired - Fee Related CA2143695C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6033522A JP2727954B2 (en) 1994-03-03 1994-03-03 Press equipment
JP6-33522 1994-03-03

Publications (2)

Publication Number Publication Date
CA2143695A1 true CA2143695A1 (en) 1995-09-04
CA2143695C CA2143695C (en) 1999-08-24

Family

ID=12388881

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002143695A Expired - Fee Related CA2143695C (en) 1994-03-03 1995-03-01 Press having gas cylinders or plastically deformable members for even distribution of blank-holding force on pressure member through cushion pins

Country Status (6)

Country Link
US (1) US5701778A (en)
EP (1) EP0673696B1 (en)
JP (1) JP2727954B2 (en)
KR (1) KR0163378B1 (en)
CA (1) CA2143695C (en)
DE (1) DE69504387T2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5086651B2 (en) * 2007-01-22 2012-11-28 本田技研工業株式会社 Press forming equipment
CN104014628A (en) * 2014-05-27 2014-09-03 大连诚技机电设备有限公司 Numerical control telescopic cushion with error compensation function
JP5852707B2 (en) * 2014-06-11 2016-02-03 アイダエンジニアリング株式会社 Die cushion device
DE112015004582T5 (en) * 2014-10-06 2017-08-24 Magna International Inc. PREMIUM FRAME ADAPTER FOR ADAPTING TO DIFFERENT MATRIC TERMINAL POSTS
JP6185973B2 (en) * 2015-12-01 2017-08-23 アイダエンジニアリング株式会社 Slide cushion device for press machine
JP6386115B1 (en) 2017-02-27 2018-09-05 アイダエンジニアリング株式会社 Die cushion device
JP6986370B2 (en) * 2017-06-09 2021-12-22 東洋アルミエコープロダクツ株式会社 Paper container manufacturing equipment, paper container manufacturing method and paper container
CN108637120A (en) * 2018-04-27 2018-10-12 浙江老铁匠实业有限公司 A kind of forcing press material fixing device
JP2020127964A (en) * 2019-02-12 2020-08-27 新明工業株式会社 Die device

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1503105A (en) * 1922-02-06 1924-07-29 Marquette Tool & Mfg Co Pressure pad
US1970134A (en) * 1932-07-29 1934-08-14 Oilgear Co Hydraulic press
DE2407864C3 (en) * 1974-02-19 1982-08-26 Maschinenfabrik Weingarten Ag, 7987 Weingarten Pressure pin arrangement on a pressure pad for presses
JPS5597819A (en) * 1979-11-22 1980-07-25 Aida Eng Ltd Regulating circuit for cushion pressure
US4635446A (en) * 1981-05-15 1987-01-13 Camp Dresser & Mckee Dehumidification apparatus
EP0074421B1 (en) * 1981-09-12 1985-05-22 L. SCHULER GmbH Deep-drawing arrangement for presses with mechanically driven drawing punch
AU564379B2 (en) * 1982-08-30 1987-08-13 Amada Company Limited Press-bellow with pneumatic to hydraulic control
US4414836A (en) * 1982-09-30 1983-11-15 National Steel Corporation Method of and apparatus for deep drawing metal containers
US4480088A (en) * 1983-10-20 1984-10-30 United Technologies Corporation Water soluble polyimide resin system
EP0173755B1 (en) * 1984-06-29 1989-02-01 L. SCHULER GmbH Drawing device in a press
US4592220A (en) * 1984-08-07 1986-06-03 Rca Corporation System and method for the in press adjustment of workpiece holding force
US4610156A (en) * 1984-12-20 1986-09-09 The Stolle Corporation Progressive die apparatus having resilient tool support means
DE3640787A1 (en) * 1986-11-28 1988-06-01 Schuler Gmbh L DRAWING DEVICE FOR A PRESS
DE3735582C1 (en) * 1987-10-21 1988-04-28 Daimler Benz Ag Double-acting press for pulling sheet metal parts
JPH0829367B2 (en) * 1988-03-31 1996-03-27 株式会社小松製作所 Pressure control device for press die cushion
US5100113A (en) * 1988-10-18 1992-03-31 Aida Engineering Co., Ltd. Pneumatic die cushion equipment
US5003807A (en) * 1989-10-30 1991-04-02 Teledyne Industries, Inc. Press assembly and method of operation
FR2655907B1 (en) * 1989-12-19 1993-07-30 Plazenet Jean HYDRAULIC BENDING PRESS WITH MOBILE LOWER APRON.
DD298484A5 (en) * 1990-10-02 1992-02-27 Umformtechnik Erfurt Gmbh,De HYDRAULIC LEAD HOLDER FOR SIMPLE-ACTING PRESSES
DE4101606A1 (en) * 1991-01-21 1992-07-23 Erfurt Umformtechnik Gmbh Plate holding force booster for press - has short stroke cylinders of multistage type engageable by several pressure levels via valves
JP2705449B2 (en) * 1992-04-07 1998-01-28 トヨタ自動車株式会社 Press type cushion pin pressure equalizer
JP2819889B2 (en) * 1991-09-04 1998-11-05 トヨタ自動車株式会社 Press machine
JP2705393B2 (en) * 1991-09-04 1998-01-28 トヨタ自動車株式会社 Cushion pin pressure equalizer for press machine
JP2871225B2 (en) * 1991-09-06 1999-03-17 トヨタ自動車株式会社 Press machine
CA2077510C (en) * 1991-09-04 1997-01-28 Kazunari Kirii 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
US5299444A (en) * 1991-09-04 1994-04-05 Toyota Jidosha Kabushiki Kaisha Hydraulic cushioning system for press, having hydraulic power supply including means for adjusting initial pressure to be applied to pressure-pin cylinders

Also Published As

Publication number Publication date
CA2143695C (en) 1999-08-24
KR950026584A (en) 1995-10-16
JPH07241625A (en) 1995-09-19
DE69504387D1 (en) 1998-10-08
DE69504387T2 (en) 1999-02-18
EP0673696A1 (en) 1995-09-27
US5701778A (en) 1997-12-30
KR0163378B1 (en) 1999-01-15
JP2727954B2 (en) 1998-03-18
EP0673696B1 (en) 1998-09-02

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20140303