JPS6451244A - Small diametral mandrel - Google Patents
Small diametral mandrelInfo
- Publication number
- JPS6451244A JPS6451244A JP20589687A JP20589687A JPS6451244A JP S6451244 A JPS6451244 A JP S6451244A JP 20589687 A JP20589687 A JP 20589687A JP 20589687 A JP20589687 A JP 20589687A JP S6451244 A JPS6451244 A JP S6451244A
- Authority
- JP
- Japan
- Prior art keywords
- mandrel
- gripping
- workpiece
- hole
- mandrel body
- 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
Links
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
PURPOSE:To make the extent of gripping power larger even in case of a small diametral mandrel and grip a workpiece firmly in a simple manner by inserting a gripping part of a mandrel body into a through hole of the workpiece, and expanding the gripping part in a way of adding pressure to a taper hole part. CONSTITUTION:A mandrel body 1 is formed into a cylindrical form in substance, installing a large diametral hole part 8 at the one end side in the axial direction and a small diametral hole part 9 at the other end side respectively, and both these hole parts 8 and 9 are interconnected to each other, then plural slits 12 in the radial direction are installed in a part corresponding to at least a taper hole part 10 on an outer circumferential wall of the mandrel body 1. And, a gripping part 4 to be expanded by dint of pressure to be given to the taper hole part 10 of the mandrel body 1 is set to a forming part of these slits 12 and it is inserted into a through hole 11a of a workpiece 11, and this gripping part 4 is expanded in way of adding pressure to the taper hole part 10. Consequently, even in case of a small diametral mandrel, gripping power is large enough, so that it can firmly hold the workpiece 11 in a very simple manner.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20589687A JPS6451244A (en) | 1987-08-19 | 1987-08-19 | Small diametral mandrel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20589687A JPS6451244A (en) | 1987-08-19 | 1987-08-19 | Small diametral mandrel |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6451244A true JPS6451244A (en) | 1989-02-27 |
Family
ID=16514538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20589687A Pending JPS6451244A (en) | 1987-08-19 | 1987-08-19 | Small diametral mandrel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6451244A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5730604A (en) * | 1980-03-28 | 1982-02-18 | Sumitomo Rubber Ind Ltd | Tyre |
-
1987
- 1987-08-19 JP JP20589687A patent/JPS6451244A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5730604A (en) * | 1980-03-28 | 1982-02-18 | Sumitomo Rubber Ind Ltd | Tyre |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES407232A1 (en) | Expandable screw anchoring devices | |
WO1993005267A3 (en) | Pack-off tool | |
GB1140109A (en) | Improvements in plug insert or nut fastening devices | |
ES2006181A6 (en) | Method of joining tubes having a corrugated wall of plastic material. | |
ES8604435A1 (en) | Method of manufacturing a valve sleeve | |
JPH0374624A (en) | Expansion type anchor bolt made of synthetic material | |
ES2088376T1 (en) | SPLIT HOSE FOR A SQUARE REED MALE. | |
ES284753U (en) | Axial ball pivot for link rods in motor vehicles. | |
JPS6451244A (en) | Small diametral mandrel | |
JPS5610049A (en) | Connecting method of slip ring to rotary shaft | |
GB2014683A (en) | Threaded inserts | |
JPS569028A (en) | Forming device of end of pipe joint | |
US5085544A (en) | Expanding plug and a method to manufacture same | |
JPS569026A (en) | Connecting method of pipe | |
JPS55144336A (en) | Method and device for correcting shape and size of pipe end | |
DE59508532D1 (en) | Insulating mandrel dowels | |
EP0069027A3 (en) | Device for fixing a pear-shaped piercing or expanding mandrel to a reaction bar | |
ES8705960A1 (en) | Pipe repair sleeve apparatus and method of repairing a damaged pipe. | |
KR910010108A (en) | Tube connection | |
JPS61203905U (en) | ||
JPS6440785A (en) | Pipe joint | |
JPS57196096A (en) | Repairing method of heat exchanger tube | |
JPS558400A (en) | Production of inner blade body of reciprocating electric shaver | |
DE3473011D1 (en) | Expansion dowel with an axially deformable zone | |
JPS57194363A (en) | Measuring jig for dielectric resonator |