JPS5689348A - Forging device - Google Patents
Forging deviceInfo
- Publication number
- JPS5689348A JPS5689348A JP16691579A JP16691579A JPS5689348A JP S5689348 A JPS5689348 A JP S5689348A JP 16691579 A JP16691579 A JP 16691579A JP 16691579 A JP16691579 A JP 16691579A JP S5689348 A JPS5689348 A JP S5689348A
- Authority
- JP
- Japan
- Prior art keywords
- collet
- molding
- pieces
- punch
- undercut
- 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
Links
- 238000005242 forging Methods 0.000 title 1
- 238000000465 moulding Methods 0.000 abstract 5
Landscapes
- Forging (AREA)
Abstract
PURPOSE: To forge an undercut part of parts with a simple device by fixing the part having the undercut part with a lower die and an upper die, inserting a collet to the inside surface thereof and pushing the same with a punch.
CONSTITUTION: A molding having an undercut part in the inside of the opening is firmly held by means of a lower die 1 and an upper die 3, and a collet 8 provided with a plurality of segmental collet pieces 8a is inserted thereto. The segmental collet pieces 8a are expanded by the downward movement of a punch 5 owing to the descending of a slide 6 so that the outer surfaces thereof are abutted on the inside surface of the molding. When the slide 6 is further lowered, the upper die 3 draws the outside circumference of the opening inlet part of the molding. The inside surface of the molding abuts on the outside shape of the collet pieces 8a, thus spherical working having an undercut is accomplished. When the slide 6 ascends, the punch 5 ascends and its end circular conical part leaves the collet pieces 8a, then the collet pieces 8a shrink in the direction perpendicular to the axis, and the collet 8 is taken out from the molding.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16691579A JPS59297B2 (en) | 1979-12-24 | 1979-12-24 | forging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16691579A JPS59297B2 (en) | 1979-12-24 | 1979-12-24 | forging equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5689348A true JPS5689348A (en) | 1981-07-20 |
| JPS59297B2 JPS59297B2 (en) | 1984-01-06 |
Family
ID=15839993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16691579A Expired JPS59297B2 (en) | 1979-12-24 | 1979-12-24 | forging equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59297B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59501858A (en) * | 1982-10-14 | 1984-11-08 | ピ−エフデイ−・リミテツド | Tools and methods for manufacturing hollow parts |
| JPS6371939U (en) * | 1986-10-29 | 1988-05-13 | ||
| JPS63174939U (en) * | 1987-04-28 | 1988-11-14 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0515391U (en) * | 1991-08-02 | 1993-02-26 | 株式会社モリテツクス | Light source for lighting |
| JP3617693B2 (en) * | 1994-07-21 | 2005-02-09 | 株式会社デンソー | Method of manufacturing fuel injection device component having undercut |
-
1979
- 1979-12-24 JP JP16691579A patent/JPS59297B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59501858A (en) * | 1982-10-14 | 1984-11-08 | ピ−エフデイ−・リミテツド | Tools and methods for manufacturing hollow parts |
| JPS6371939U (en) * | 1986-10-29 | 1988-05-13 | ||
| JPS63174939U (en) * | 1987-04-28 | 1988-11-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59297B2 (en) | 1984-01-06 |
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