JPS5680326A - U bending method of small radius and its device - Google Patents
U bending method of small radius and its deviceInfo
- Publication number
- JPS5680326A JPS5680326A JP15658779A JP15658779A JPS5680326A JP S5680326 A JPS5680326 A JP S5680326A JP 15658779 A JP15658779 A JP 15658779A JP 15658779 A JP15658779 A JP 15658779A JP S5680326 A JPS5680326 A JP S5680326A
- Authority
- JP
- Japan
- Prior art keywords
- cam
- bending
- die
- ram
- punch
- 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 perform bending of high accuracy at high speeds by applying plural times of bending to the work which is positioned and supported on a bending die during one reciprocation of a press machine.
CONSTITUTION: When a plate material M is placed on a bending die 1, and a ram PO is lowered by operating the press machine, a moving cam 20 and a bending punch 3 are lowered together with the ram PO, thereby first causing a cam 20 and a driven cam 21 to engage and a moving die 11 to be moved rightward. When the cam 20 descends further after this, the engagement with the cam 21 is released and the die 11 is reset to the fixed position by the elastic force of a spring 5. Then, a punch 3 abuts on the plate material M, and starts bending in a fixed range, so that predetermined one bending is applied at once to the material M. Next, when the ram PO starts ascending, the punch 3 and cam 20 ascend and cause the cam 20 and cam 21 to engage. Then, a moving means 2 operates to move the die 11 rightward, by which bending is applied again to the material M. When the ram PO ascends further, the engagement of the cams 20, 21 is released.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15658779A JPS5680326A (en) | 1979-12-03 | 1979-12-03 | U bending method of small radius and its device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15658779A JPS5680326A (en) | 1979-12-03 | 1979-12-03 | U bending method of small radius and its device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5680326A true JPS5680326A (en) | 1981-07-01 |
Family
ID=15631018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15658779A Pending JPS5680326A (en) | 1979-12-03 | 1979-12-03 | U bending method of small radius and its device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5680326A (en) |
-
1979
- 1979-12-03 JP JP15658779A patent/JPS5680326A/en active Pending
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