JPS57190732A - Press die device for piercing and washer-faced piercing - Google Patents

Press die device for piercing and washer-faced piercing

Info

Publication number
JPS57190732A
JPS57190732A JP7612981A JP7612981A JPS57190732A JP S57190732 A JPS57190732 A JP S57190732A JP 7612981 A JP7612981 A JP 7612981A JP 7612981 A JP7612981 A JP 7612981A JP S57190732 A JPS57190732 A JP S57190732A
Authority
JP
Japan
Prior art keywords
piercing
die
cam
upper face
retainer
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
JP7612981A
Other languages
Japanese (ja)
Other versions
JPH028809B2 (en
Inventor
Goro Kobayashi
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
Priority to JP7612981A priority Critical patent/JPS57190732A/en
Publication of JPS57190732A publication Critical patent/JPS57190732A/en
Publication of JPH028809B2 publication Critical patent/JPH028809B2/ja
Granted 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)

Abstract

PURPOSE:To enable piercing and washer-based piercing selectively by one press die device by providing a back-up cam that moves the upper face of a die vertically and selectively against the upper face of a die retainer. CONSTITUTION:In the case of piercing, a work is set on the upper face of a die retainer 16 and a punch retainer 7 is lowered to the die retainer 16 by lowering a ram 4. At the same time, a switch cam 26 is also lowered. A die 18 is pushed up by advancing a back-up cam 24 by the switch cam 26 against the force of a return spring 25 and the upper face of the die 18 is brought to the same level with the upper face of the die retainer. Under this condition, a hole is pierced at specified position of the work by a punching die. Then, the punch retainer 7 and the switch cam 24 are returned to original position. In the case of washer based piercing, piercing is made after releasing the cam holder 27 so that the switch cam 24 does not come into contact with the back-up cam.
JP7612981A 1981-05-19 1981-05-19 Press die device for piercing and washer-faced piercing Granted JPS57190732A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7612981A JPS57190732A (en) 1981-05-19 1981-05-19 Press die device for piercing and washer-faced piercing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7612981A JPS57190732A (en) 1981-05-19 1981-05-19 Press die device for piercing and washer-faced piercing

Publications (2)

Publication Number Publication Date
JPS57190732A true JPS57190732A (en) 1982-11-24
JPH028809B2 JPH028809B2 (en) 1990-02-27

Family

ID=13596321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7612981A Granted JPS57190732A (en) 1981-05-19 1981-05-19 Press die device for piercing and washer-faced piercing

Country Status (1)

Country Link
JP (1) JPS57190732A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59165725U (en) * 1983-04-21 1984-11-07 トヨタ自動車株式会社 Press device for countersinking
TWI824930B (en) * 2023-01-19 2023-12-01 巴虎 林 Washer forming device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59165725U (en) * 1983-04-21 1984-11-07 トヨタ自動車株式会社 Press device for countersinking
TWI824930B (en) * 2023-01-19 2023-12-01 巴虎 林 Washer forming device

Also Published As

Publication number Publication date
JPH028809B2 (en) 1990-02-27

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