JPS55165231A - Working method of nut seat face - Google Patents

Working method of nut seat face

Info

Publication number
JPS55165231A
JPS55165231A JP7365179A JP7365179A JPS55165231A JP S55165231 A JPS55165231 A JP S55165231A JP 7365179 A JP7365179 A JP 7365179A JP 7365179 A JP7365179 A JP 7365179A JP S55165231 A JPS55165231 A JP S55165231A
Authority
JP
Japan
Prior art keywords
nut seat
guide post
coining die
hole
die
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
JP7365179A
Other languages
Japanese (ja)
Inventor
Toshimitsu Hayakawa
Hiroshi Takahashi
Saburo Maruyama
Washichi Iida
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.)
Topy Industries Ltd
Original Assignee
Topy Industries Ltd
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 Topy Industries Ltd filed Critical Topy Industries Ltd
Priority to JP7365179A priority Critical patent/JPS55165231A/en
Publication of JPS55165231A publication Critical patent/JPS55165231A/en
Pending legal-status Critical Current

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  • Forging (AREA)

Abstract

PURPOSE: To prevent the change in the inside diameter size of the initial hold and make the nut seat face and nut hole highly accurate by penetrating the ring-form convex part of a coining die to the circumferential edge of the die.
CONSTITUTION: A guide post 6 is protruded above the central part of a coining die 4, and further a ring-form convex part 5 is provided to the top surface of the coining die 4 at the circumferential edge of the guide post 6. A plate 1 which has beforehand been pierced with an initial hole (a) is placed on the coining die 4 in alignment to the guide post 6, thence it is screw-down-pressed from above by a plane punch 7 to penetrate the ring-form convex part 5 to the bottom surface of the plate 1. Next, if a nut seat coin punch 2 is screwed down while the guide 3 is being inserted into the initial hole (a) of the plate 1 on the coining die 4 of the shape removed of the guide post 6, a nut seat (b) is formed in the opening of the hole (a) by its tapered part (t).
COPYRIGHT: (C)1980,JPO&Japio
JP7365179A 1979-06-11 1979-06-11 Working method of nut seat face Pending JPS55165231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7365179A JPS55165231A (en) 1979-06-11 1979-06-11 Working method of nut seat face

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7365179A JPS55165231A (en) 1979-06-11 1979-06-11 Working method of nut seat face

Publications (1)

Publication Number Publication Date
JPS55165231A true JPS55165231A (en) 1980-12-23

Family

ID=13524395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7365179A Pending JPS55165231A (en) 1979-06-11 1979-06-11 Working method of nut seat face

Country Status (1)

Country Link
JP (1) JPS55165231A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010264474A (en) * 2009-05-14 2010-11-25 Amada Co Ltd Method of forming countersink and dieing die, and punching die
JP2011005529A (en) * 2009-06-26 2011-01-13 Mitsubishi Electric Corp Method and device for forming fin collar of heat exchanging fin
CN108555145A (en) * 2018-04-18 2018-09-21 温州职业技术学院 A kind of adaptive diel location structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS497154A (en) * 1972-05-12 1974-01-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS497154A (en) * 1972-05-12 1974-01-22

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010264474A (en) * 2009-05-14 2010-11-25 Amada Co Ltd Method of forming countersink and dieing die, and punching die
JP2011005529A (en) * 2009-06-26 2011-01-13 Mitsubishi Electric Corp Method and device for forming fin collar of heat exchanging fin
CN108555145A (en) * 2018-04-18 2018-09-21 温州职业技术学院 A kind of adaptive diel location structure
CN108555145B (en) * 2018-04-18 2019-07-09 温州职业技术学院 A kind of adaptive stamping die location structure

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