JPS5744423A - Opposed type hydraulic forming apparatus with single action press - Google Patents
Opposed type hydraulic forming apparatus with single action pressInfo
- Publication number
- JPS5744423A JPS5744423A JP55118289A JP11828980A JPS5744423A JP S5744423 A JPS5744423 A JP S5744423A JP 55118289 A JP55118289 A JP 55118289A JP 11828980 A JP11828980 A JP 11828980A JP S5744423 A JPS5744423 A JP S5744423A
- Authority
- JP
- Japan
- Prior art keywords
- blank holder
- blank
- punch
- hereby
- slide
- 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
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
PURPOSE: To efficiently constitute an opposed type hydraulic forming apparatus, and to form a product in an optional shape with a good yield and accuracy, by loosely fitting a blank holder around a punch so as to relatively movable, and giving a blank holding force to the blank holder after touching a blank sheet.
CONSTITUTION: A slide 5 goes down, and hereby, a punch 7 and a blank holder 8 are brought down till touching at a blank sheet; at this point, a flange part W' is clamped between the blank holder 8 and a stationary blank holder 4 of a counter hydraulic dome 1. If the slide 5 further goes down, the descendance of the blank holder 8 is obstructed by the counter hydraulic dome 1; and the weight of the slide 5 and the output of a main cylinder 6 are impressed upon a follower cylinder 9 upholding the blank holder 8, so that a piston rod 9 withdraws. Hereby, the punch 7 goes into a pressure chamber 3 wherein a counter hydraulic pressure is generated; hereby, a press force equivalent to a stroke of the follower cylinder 9 is loaded upon the blank holder 8, and this force becomes the blank holding force for the flange part W'.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55118289A JPS6056569B2 (en) | 1980-08-29 | 1980-08-29 | Opposite hydraulic forming equipment using a single-acting press |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55118289A JPS6056569B2 (en) | 1980-08-29 | 1980-08-29 | Opposite hydraulic forming equipment using a single-acting press |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5744423A true JPS5744423A (en) | 1982-03-12 |
JPS6056569B2 JPS6056569B2 (en) | 1985-12-11 |
Family
ID=14732980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55118289A Expired JPS6056569B2 (en) | 1980-08-29 | 1980-08-29 | Opposite hydraulic forming equipment using a single-acting press |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6056569B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5956925A (en) * | 1982-09-27 | 1984-04-02 | Matsushita Electric Works Ltd | Opposed liquid pressure forming method |
-
1980
- 1980-08-29 JP JP55118289A patent/JPS6056569B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5956925A (en) * | 1982-09-27 | 1984-04-02 | Matsushita Electric Works Ltd | Opposed liquid pressure forming method |
Also Published As
Publication number | Publication date |
---|---|
JPS6056569B2 (en) | 1985-12-11 |
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