JPS5614028A - Die for bending work - Google Patents
Die for bending workInfo
- Publication number
- JPS5614028A JPS5614028A JP8854379A JP8854379A JPS5614028A JP S5614028 A JPS5614028 A JP S5614028A JP 8854379 A JP8854379 A JP 8854379A JP 8854379 A JP8854379 A JP 8854379A JP S5614028 A JPS5614028 A JP S5614028A
- Authority
- JP
- Japan
- Prior art keywords
- die
- parts
- spring back
- tip
- bar type
- 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 carry out the forming work for the channel type parts through one pass, and to prevent the deformation caused by the spring back action, by inclining the supplementary die within the main die utilizing the working load.
CONSTITUTION: The punch P is pressed down onto the bar type blank placed on the upper surface of the die in order to push the bar type blank into the die hole C; hereby, the bar type blank is bent into U-shape, and the U-type parts M is formed within the die hole C. By further pressing down the punch P, a downward force is loaded on the tip of the side protuberance 3B of the supplmentary die 3 through the parts M, so that the tip is pushed down. This downward force is converted into the force to incline the tip end of the upper externsion 3A to the left side; hereby, the parts M is pressed from the side by the side wall 2a2 and the supplementary die surface 3a2. As a result, the spring back action is prevented by this side pressing action, and the spring back action does not work even after the parts M is removed away from the die.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8854379A JPS5614028A (en) | 1979-07-12 | 1979-07-12 | Die for bending work |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8854379A JPS5614028A (en) | 1979-07-12 | 1979-07-12 | Die for bending work |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5614028A true JPS5614028A (en) | 1981-02-10 |
Family
ID=13945757
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8854379A Pending JPS5614028A (en) | 1979-07-12 | 1979-07-12 | Die for bending work |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5614028A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS647842A (en) * | 1987-06-30 | 1989-01-11 | Ricoh Kk | Image communication telephone set |
-
1979
- 1979-07-12 JP JP8854379A patent/JPS5614028A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS647842A (en) * | 1987-06-30 | 1989-01-11 | Ricoh Kk | Image communication telephone set |
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