JPS5533856A - Blanking die for acute angle parts - Google Patents

Blanking die for acute angle parts

Info

Publication number
JPS5533856A
JPS5533856A JP10677678A JP10677678A JPS5533856A JP S5533856 A JPS5533856 A JP S5533856A JP 10677678 A JP10677678 A JP 10677678A JP 10677678 A JP10677678 A JP 10677678A JP S5533856 A JPS5533856 A JP S5533856A
Authority
JP
Japan
Prior art keywords
counter holding
holding member
punch
ram
acute angle
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.)
Pending
Application number
JP10677678A
Other languages
Japanese (ja)
Inventor
Iwao Mizutani
Masato Okubo
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 JP10677678A priority Critical patent/JPS5533856A/en
Publication of JPS5533856A publication Critical patent/JPS5533856A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent ocurrence of a crack and fissure at acute parts by arranging the counter holding member opposing to a punch and die, and setting up the pressure member for pressing the area nearby acute angle parts of the product against the counter holding member.
CONSTITUTION: After loading the material 5 on the lower counter holding member 18 and rising the ram, the material 5 is put between the upper counter holding member 19 and die 14, also punch 10 and lower counter holding member 18. When the ram further rises, the punch 10 goes into the material 5, and the rod 28 goes back to upward. While this process, the upper and lower counter holding members 19 and 18 are holding the material 5 with certain pressure. From the starting time of blanking, the pressing member 29 is pressed by means of the oil pressure piston pressed by pressure oil, and the ram is further rised, then blanking is completed.
COPYRIGHT: (C)1980,JPO&Japio
JP10677678A 1978-08-31 1978-08-31 Blanking die for acute angle parts Pending JPS5533856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10677678A JPS5533856A (en) 1978-08-31 1978-08-31 Blanking die for acute angle parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10677678A JPS5533856A (en) 1978-08-31 1978-08-31 Blanking die for acute angle parts

Publications (1)

Publication Number Publication Date
JPS5533856A true JPS5533856A (en) 1980-03-10

Family

ID=14442296

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10677678A Pending JPS5533856A (en) 1978-08-31 1978-08-31 Blanking die for acute angle parts

Country Status (1)

Country Link
JP (1) JPS5533856A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103100590A (en) * 2011-11-01 2013-05-15 陈淑姿 Thin gasket punch forming device
CN103223451A (en) * 2013-04-07 2013-07-31 苏州菱欧自动化设备有限公司 Terminal stamping device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103100590A (en) * 2011-11-01 2013-05-15 陈淑姿 Thin gasket punch forming device
CN103223451A (en) * 2013-04-07 2013-07-31 苏州菱欧自动化设备有限公司 Terminal stamping device

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