JPS5530317A - Bending method and its device - Google Patents
Bending method and its deviceInfo
- Publication number
- JPS5530317A JPS5530317A JP10212678A JP10212678A JPS5530317A JP S5530317 A JPS5530317 A JP S5530317A JP 10212678 A JP10212678 A JP 10212678A JP 10212678 A JP10212678 A JP 10212678A JP S5530317 A JPS5530317 A JP S5530317A
- Authority
- JP
- Japan
- Prior art keywords
- punch
- flange
- worked
- plate
- pad
- 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 raise work efficiency, reduce spring back, better the roundness of circular section and improve accuracy of products by blanking, punching, and bending the material to be worked, such as steel plate etc., and, at the same time, pressing the edge of the flange with the restrike punch.
CONSTITUTION: The material A to be worked which is placed on the cushion pad 2 is clamped with the pad 2 and punch 5, and bent by ordinary pressing. The punch 5 forms the material A to be worked through descent of the punch plate 7 and the flange which is formed at this time is not interfered by the restrike punch 6. When the pad 2 is compressed and lowered to the bottom of the die 1 and stopped, and the plate 7 is lowered, oil pressure in the cylinder 3 increases to exceed the setting of sequence valve. Then, the oil escapes to the accumulator through the valve. The punch 6 descends with the plate 7 and strikes the upper end of the flange a and reworks the flange a until it attiains to the specified height.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10212678A JPS5530317A (en) | 1978-08-22 | 1978-08-22 | Bending method and its device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10212678A JPS5530317A (en) | 1978-08-22 | 1978-08-22 | Bending method and its device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5530317A true JPS5530317A (en) | 1980-03-04 |
Family
ID=14319086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10212678A Pending JPS5530317A (en) | 1978-08-22 | 1978-08-22 | Bending method and its device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5530317A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62120188U (en) * | 1986-01-24 | 1987-07-30 | ||
KR20030025774A (en) * | 2002-01-30 | 2003-03-29 | 김상수 | Mothod for manufacturing kick down drum for automatic transmission of automobile |
JP2010519048A (en) * | 2007-02-19 | 2010-06-03 | フェストアルピネ・アンアルバイトゥング・ゲー・エム・ベー・ハー | Method and apparatus for temperature controlled forming of hot rolled steel |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53134762A (en) * | 1977-04-28 | 1978-11-24 | Sanei Kinzoku Kogyo Kk | Method and device for forming acute bend angle and drawing edge |
-
1978
- 1978-08-22 JP JP10212678A patent/JPS5530317A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53134762A (en) * | 1977-04-28 | 1978-11-24 | Sanei Kinzoku Kogyo Kk | Method and device for forming acute bend angle and drawing edge |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62120188U (en) * | 1986-01-24 | 1987-07-30 | ||
KR20030025774A (en) * | 2002-01-30 | 2003-03-29 | 김상수 | Mothod for manufacturing kick down drum for automatic transmission of automobile |
JP2010519048A (en) * | 2007-02-19 | 2010-06-03 | フェストアルピネ・アンアルバイトゥング・ゲー・エム・ベー・ハー | Method and apparatus for temperature controlled forming of hot rolled steel |
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