JPS569019A - Forming method of dissimilar diameter pipe and its device - Google Patents
Forming method of dissimilar diameter pipe and its deviceInfo
- Publication number
- JPS569019A JPS569019A JP8399579A JP8399579A JPS569019A JP S569019 A JPS569019 A JP S569019A JP 8399579 A JP8399579 A JP 8399579A JP 8399579 A JP8399579 A JP 8399579A JP S569019 A JPS569019 A JP S569019A
- Authority
- JP
- Japan
- Prior art keywords
- pairs
- way
- work
- sets
- blank material
- 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
- 238000005452 bending Methods 0.000 abstract 1
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To easily dissimilar diameter pipes of arbitrary sizes without involving any change of devices and any change of setup by revolving one or more sets of work rollers on the inner and outer sides of the work while exerting diametrically opposing pressing forces and moving the same axially, in titled working in which the work is revolved.
CONSTITUTION: A pair of upper and lower frames 20 are divided and are inserted with a blank material 1 of a cylindrical and conical shape, after which the two frames are coupled by means of pins 23. Next, two sets of pressing device pairs 15, 16 are operated to bring respective sets of feed device pairs 10, 11 closer to each other. This causes mutually opposing pressing forces to be exerted to work roller pairs 2, 3 by way of feed shafts 4, 5, and at the same instant, this causes the blank material 1 to be rotated by way of a driving roller 25 by a driving unit 24. As a result, bending force acts upon the blank material which then begins to deform plastically. While this state is being maintained, the motors 12 of respective sets of the feed device pairs 10, 11 are driven. This causes the shafts 4, 5 to revolve by way of gears 14 so that the roller pairs 2, 3 are moved to the right and left by way of the connection pairs 6, 7 screwed respectively to their right-handed and left-handed screws. The dissimilar pipes may be formed by repeating these operations.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8399579A JPS569019A (en) | 1979-07-04 | 1979-07-04 | Forming method of dissimilar diameter pipe and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8399579A JPS569019A (en) | 1979-07-04 | 1979-07-04 | Forming method of dissimilar diameter pipe and its device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS569019A true JPS569019A (en) | 1981-01-29 |
Family
ID=13818107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8399579A Pending JPS569019A (en) | 1979-07-04 | 1979-07-04 | Forming method of dissimilar diameter pipe and its device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS569019A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332439A (en) * | 2018-11-26 | 2019-02-15 | 佛山市粤优创钢结构有限公司 | Three-dimension curved surface profile-forming machine and its forming method |
-
1979
- 1979-07-04 JP JP8399579A patent/JPS569019A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332439A (en) * | 2018-11-26 | 2019-02-15 | 佛山市粤优创钢结构有限公司 | Three-dimension curved surface profile-forming machine and its forming method |
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