JPS56128626A - Bending method and device for sheet metal - Google Patents
Bending method and device for sheet metalInfo
- Publication number
- JPS56128626A JPS56128626A JP3202980A JP3202980A JPS56128626A JP S56128626 A JPS56128626 A JP S56128626A JP 3202980 A JP3202980 A JP 3202980A JP 3202980 A JP3202980 A JP 3202980A JP S56128626 A JPS56128626 A JP S56128626A
- Authority
- JP
- Japan
- Prior art keywords
- punch
- edge part
- sheet metal
- prebending
- stopper
- 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.)
- Granted
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To bend a sheet metal without curving and deforming and improve its working accuracy and appearance by providing a stopper to the tip of a prebending punch and prebending the sheet metal.
CONSTITUTION: The edge part W1a of a sheet metal W1 which has beforehand been slightly bent is pressed by the inclined 1st punch surface 13a by the forward oscillation of a prebending punch 13, and receives pressing force but since a stopper 26 is provided at the tip of the punch 13, the end part W1b of the edge part W1a is prevented from escaping from the punch 13 by slipping on the punch surface 13a. The end part W1b engages with the stopper 26, and the edge part W1a bends to a curved form at the edge W1c and further the 2nd punch 13b acts pressing force upon the edge part W1a, so that the edge part W1a increases the angle of curving further. Then, the punch 13 is replaced with a regular bending punch 3, by the bending whereof the edge part W1a is pressed, and is press-fixed with the edge part W2a of the sheet metal W2, whereby it is sandwiched and fixed.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3202980A JPS56128626A (en) | 1980-03-12 | 1980-03-12 | Bending method and device for sheet metal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3202980A JPS56128626A (en) | 1980-03-12 | 1980-03-12 | Bending method and device for sheet metal |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56128626A true JPS56128626A (en) | 1981-10-08 |
JPS6123046B2 JPS6123046B2 (en) | 1986-06-04 |
Family
ID=12347431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3202980A Granted JPS56128626A (en) | 1980-03-12 | 1980-03-12 | Bending method and device for sheet metal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56128626A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61222638A (en) * | 1985-03-27 | 1986-10-03 | Honda Motor Co Ltd | Edge bending device |
JPS61222639A (en) * | 1985-03-27 | 1986-10-03 | Honda Motor Co Ltd | Edge bending device |
JP2016185555A (en) * | 2015-03-27 | 2016-10-27 | ダイハツ工業株式会社 | Bending work device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021134389A1 (en) * | 2019-12-31 | 2021-07-08 | 江苏亚威机床股份有限公司 | Pneumatic combined avoidance die mechanism of edge folding machine |
-
1980
- 1980-03-12 JP JP3202980A patent/JPS56128626A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61222638A (en) * | 1985-03-27 | 1986-10-03 | Honda Motor Co Ltd | Edge bending device |
JPS61222639A (en) * | 1985-03-27 | 1986-10-03 | Honda Motor Co Ltd | Edge bending device |
JPS6341657B2 (en) * | 1985-03-27 | 1988-08-18 | Honda Motor Co Ltd | |
JPS6341659B2 (en) * | 1985-03-27 | 1988-08-18 | Honda Motor Co Ltd | |
JP2016185555A (en) * | 2015-03-27 | 2016-10-27 | ダイハツ工業株式会社 | Bending work device |
Also Published As
Publication number | Publication date |
---|---|
JPS6123046B2 (en) | 1986-06-04 |
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