JPS5527452A - Bending method of tubular body - Google Patents
Bending method of tubular bodyInfo
- Publication number
- JPS5527452A JPS5527452A JP10036778A JP10036778A JPS5527452A JP S5527452 A JPS5527452 A JP S5527452A JP 10036778 A JP10036778 A JP 10036778A JP 10036778 A JP10036778 A JP 10036778A JP S5527452 A JPS5527452 A JP S5527452A
- Authority
- JP
- Japan
- Prior art keywords
- tubular body
- bending
- annular bodies
- packings
- packed
- 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
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To prevent the production of crease in the bent part and make fabrication easy by fitting annular bodies to the outside of the tubular body packed with packings.
CONSTITUTION: Required packings 2 are packed in the tubular body 1 to be bent and covers are provided at both ends of the tubular body 1. Next, required number of annular bodies 3 are disposed with spacers in-between by leaving a specified spacing onto the bending part of the tubular body 1. The outside of the tubular bodies 3 are engaged to the pressing piece 8 and holding members 5, 5' of a bending machine and a hydraulic unit 6 is operated. Then, it forces out its operating shaft 7 to press the pressing piece 8 to the intermediate direction of the holding members 5, 5', thereby bending the tubular body 1 by way of the annular bodies 3 without producing any strain.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10036778A JPS5527452A (en) | 1978-08-17 | 1978-08-17 | Bending method of tubular body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10036778A JPS5527452A (en) | 1978-08-17 | 1978-08-17 | Bending method of tubular body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5527452A true JPS5527452A (en) | 1980-02-27 |
Family
ID=14272081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10036778A Pending JPS5527452A (en) | 1978-08-17 | 1978-08-17 | Bending method of tubular body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5527452A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61193725A (en) * | 1985-02-21 | 1986-08-28 | Nippon Denso Co Ltd | Bending method |
| CN102218461A (en) * | 2011-03-02 | 2011-10-19 | 北京北方车辆集团有限公司 | Stretch-bending formation method of lower enclosing rib of rectangular hollow section gun turret |
| CN104307948A (en) * | 2014-09-26 | 2015-01-28 | 北京北方车辆集团有限公司 | Rectangular hollow steel profile stretch bending forming method and special clamping device thereof |
| CN107583980A (en) * | 2017-11-15 | 2018-01-16 | 吉林大学 | Tubing free bend equipment with Wrinkle-resisting unit |
-
1978
- 1978-08-17 JP JP10036778A patent/JPS5527452A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61193725A (en) * | 1985-02-21 | 1986-08-28 | Nippon Denso Co Ltd | Bending method |
| CN102218461A (en) * | 2011-03-02 | 2011-10-19 | 北京北方车辆集团有限公司 | Stretch-bending formation method of lower enclosing rib of rectangular hollow section gun turret |
| CN104307948A (en) * | 2014-09-26 | 2015-01-28 | 北京北方车辆集团有限公司 | Rectangular hollow steel profile stretch bending forming method and special clamping device thereof |
| CN107583980A (en) * | 2017-11-15 | 2018-01-16 | 吉林大学 | Tubing free bend equipment with Wrinkle-resisting unit |
| CN107583980B (en) * | 2017-11-15 | 2019-01-29 | 吉林大学 | Tubing free bend equipment with Wrinkle-resisting unit |
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