JPS55120443A - Production of special bolt - Google Patents
Production of special boltInfo
- Publication number
- JPS55120443A JPS55120443A JP2703779A JP2703779A JPS55120443A JP S55120443 A JPS55120443 A JP S55120443A JP 2703779 A JP2703779 A JP 2703779A JP 2703779 A JP2703779 A JP 2703779A JP S55120443 A JPS55120443 A JP S55120443A
- Authority
- JP
- Japan
- Prior art keywords
- blank
- punch
- head part
- ram
- outside
- 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
Abstract
PURPOSE: To form the correct head part without loss of shape and with good efficiency by fitting the blank head part into the front half of a punch, restraining and holding a die in the punch and molding the desired polygonal part simultaneously inside and outside.
CONSTITUTION: The blank (a) which is fed out by a fixed size by a quill 3 at every advancing of a ram 4 is cut by a cutter bar 6 and is transferred to the front of a die 2a. The punch 5c forming the final head part is of barrel form and its front part 5' is protruding from the front face of a punch holding case 5. The inside circumference of the front half is made circular part 8. Thereupon, when the ram 4 advances to force-insert the blank (c) into the opposing die 2c, the head part of the blank fits in the circular part 8 and as the ram 4 advances further, protruding flights 9 and the hexagonal end protrusion 11' of a rod body 11 are simultaneously press- fitted, the former into the outside circumference of the blank head part and the latter onto the axial center face, whereby the blank head part is subjected to the desired molding on the outside and outside circumference in the state where it is restrained in the punch.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2703779A JPS5848259B2 (en) | 1979-03-07 | 1979-03-07 | Special bolt manufacturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2703779A JPS5848259B2 (en) | 1979-03-07 | 1979-03-07 | Special bolt manufacturing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55120443A true JPS55120443A (en) | 1980-09-16 |
| JPS5848259B2 JPS5848259B2 (en) | 1983-10-27 |
Family
ID=12209863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2703779A Expired JPS5848259B2 (en) | 1979-03-07 | 1979-03-07 | Special bolt manufacturing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5848259B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4546630A (en) * | 1983-08-23 | 1985-10-15 | Yoshikazu Sakamura | Former having continuous forming-rolling assembly |
| CN104148573A (en) * | 2014-06-25 | 2014-11-19 | 贵州航天精工制造有限公司 | Bolt hexagonal flange surface machining method and device |
| CN106141060A (en) * | 2016-08-25 | 2016-11-23 | 厦门同恒金属有限公司 | A kind of cold forging punch die of the little component of rod category of molding major part |
| CN106623747A (en) * | 2017-02-22 | 2017-05-10 | 上海索力迪紧固件系统有限公司 | Two-die three-punching device for ultra small screws |
-
1979
- 1979-03-07 JP JP2703779A patent/JPS5848259B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4546630A (en) * | 1983-08-23 | 1985-10-15 | Yoshikazu Sakamura | Former having continuous forming-rolling assembly |
| CN104148573A (en) * | 2014-06-25 | 2014-11-19 | 贵州航天精工制造有限公司 | Bolt hexagonal flange surface machining method and device |
| CN106141060A (en) * | 2016-08-25 | 2016-11-23 | 厦门同恒金属有限公司 | A kind of cold forging punch die of the little component of rod category of molding major part |
| CN106623747A (en) * | 2017-02-22 | 2017-05-10 | 上海索力迪紧固件系统有限公司 | Two-die three-punching device for ultra small screws |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5848259B2 (en) | 1983-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS55120443A (en) | Production of special bolt | |
| JPS5659557A (en) | Press-forming method of flange nut material | |
| JPS5645209A (en) | Method and apparatus for extrusion work | |
| JPS54134066A (en) | Production of pinion for engine starter | |
| JPS551930A (en) | Product detacher in bolthead forming machine | |
| JPS5540073A (en) | Burring work method of metallic plate | |
| JPS5483652A (en) | Manufacture of deformed parts | |
| JPS5772746A (en) | Production of nut | |
| GB1348795A (en) | Extruder | |
| JPS52116996A (en) | Method for shaping superhard gear | |
| JPS5536027A (en) | Molding method of outside packing body of plastic product and the like | |
| JPS57195546A (en) | Manufacure of cap nut | |
| JPS56128611A (en) | Erhardt pipe forming method | |
| JPS5614047A (en) | Working method by upsetter | |
| JPS5717321A (en) | Production of blank material for impact extrusion | |
| JPS5699039A (en) | Manufacture of long head bolt | |
| JPS5617146A (en) | Production of long sized hollow material by outer circumferential restraining | |
| JPS55149708A (en) | Manufacture of seamless metallic pipe | |
| JPS56157607A (en) | Manufacture of tire stud shank | |
| JPS5564940A (en) | Production of bolt blank with claw by hot heading method | |
| JPS5662641A (en) | Working method of bolt and nut blank material in steering gear of vehicle | |
| JPS5292806A (en) | Die equipment for forming formed body having oblique grooves | |
| JPS57160542A (en) | Push bench process for manufacture of pipe | |
| JPS55158833A (en) | Straightening die | |
| JPS576120A (en) | Roller nanufacturing method |