JP3255174B2 - ダイクッションピン均圧化装置のプランジャー底付け防止方法 - Google Patents

ダイクッションピン均圧化装置のプランジャー底付け防止方法

Info

Publication number
JP3255174B2
JP3255174B2 JP14492491A JP14492491A JP3255174B2 JP 3255174 B2 JP3255174 B2 JP 3255174B2 JP 14492491 A JP14492491 A JP 14492491A JP 14492491 A JP14492491 A JP 14492491A JP 3255174 B2 JP3255174 B2 JP 3255174B2
Authority
JP
Japan
Prior art keywords
pressure
die cushion
hydraulic pressure
preload
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.)
Expired - Lifetime
Application number
JP14492491A
Other languages
English (en)
Japanese (ja)
Other versions
JPH04371325A (ja
Inventor
信行 梶
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.)
Komatsu Ltd
Toyota Motor Corp
Original Assignee
Komatsu Ltd
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 Komatsu Ltd, Toyota Motor Corp filed Critical Komatsu Ltd
Priority to JP14492491A priority Critical patent/JP3255174B2/ja
Priority to DE69229863T priority patent/DE69229863T2/de
Priority to PCT/JP1992/000775 priority patent/WO1992022391A1/ja
Priority to CA002111671A priority patent/CA2111671C/en
Priority to EP92912641A priority patent/EP0592670B1/de
Publication of JPH04371325A publication Critical patent/JPH04371325A/ja
Priority to US08/572,503 priority patent/US5660074A/en
Application granted granted Critical
Publication of JP3255174B2 publication Critical patent/JP3255174B2/ja
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
    • B21D24/02—Die-cushions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/065—Press rams
    • B30B15/067—Press rams with means for equalizing the pressure exerted by a plurality of press rams

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Presses And Accessory Devices Thereof (AREA)
JP14492491A 1991-06-17 1991-06-17 ダイクッションピン均圧化装置のプランジャー底付け防止方法 Expired - Lifetime JP3255174B2 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP14492491A JP3255174B2 (ja) 1991-06-17 1991-06-17 ダイクッションピン均圧化装置のプランジャー底付け防止方法
DE69229863T DE69229863T2 (de) 1991-06-17 1992-06-17 Verfahren zum verhindern des eindringens von stösseln in den boden in einem polsterstiftdruckausgleichssystem
PCT/JP1992/000775 WO1992022391A1 (fr) 1991-06-17 1992-06-17 Procede utilise dans un systeme d'egalisation de la pression s'exerçant sur les broches de serre-flans, pour eviter que les pistons n'aillent en butee
CA002111671A CA2111671C (en) 1991-06-17 1992-06-17 A method of selecting a preload oil pressure value for a die cushion pin pressure equalizing system of a press machine
EP92912641A EP0592670B1 (de) 1991-06-17 1992-06-17 Verfahren zum verhindern des eindringens von stösseln in den boden in einem polsterstiftdruckausgleichssystem
US08/572,503 US5660074A (en) 1991-06-17 1995-12-14 Method of selecting a preload oil pressure valve for a die cushion pin pressure equalizing system of a press machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14492491A JP3255174B2 (ja) 1991-06-17 1991-06-17 ダイクッションピン均圧化装置のプランジャー底付け防止方法

Publications (2)

Publication Number Publication Date
JPH04371325A JPH04371325A (ja) 1992-12-24
JP3255174B2 true JP3255174B2 (ja) 2002-02-12

Family

ID=15373388

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14492491A Expired - Lifetime JP3255174B2 (ja) 1991-06-17 1991-06-17 ダイクッションピン均圧化装置のプランジャー底付け防止方法

Country Status (5)

Country Link
EP (1) EP0592670B1 (de)
JP (1) JP3255174B2 (de)
CA (1) CA2111671C (de)
DE (1) DE69229863T2 (de)
WO (1) WO1992022391A1 (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0239622Y2 (de) * 1985-06-20 1990-10-24
JPS6220711U (de) * 1985-07-19 1987-02-07

Also Published As

Publication number Publication date
WO1992022391A1 (fr) 1992-12-23
EP0592670A1 (de) 1994-04-20
CA2111671A1 (en) 1992-12-23
EP0592670B1 (de) 1999-08-25
DE69229863T2 (de) 2000-04-27
DE69229863D1 (de) 1999-09-30
EP0592670A4 (de) 1995-02-15
JPH04371325A (ja) 1992-12-24
CA2111671C (en) 2002-09-17

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