Invention Grant
US4784058A Press control for maintaining a level position and a uniform pressure on
a workpiece
失效
压力控制用于保持工件的水平位置和均匀的压力
- Patent Title: Press control for maintaining a level position and a uniform pressure on a workpiece
- Patent Title (中): 压力控制用于保持工件的水平位置和均匀的压力
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Application No.: US80477Application Date: 1987-07-31
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Publication No.: US4784058APublication Date: 1988-11-15
- Inventor: Noriharu Nakagawa , Masanobu Kurumaji , Kazuyuki Kijayama , Koichi Fukushima , Nobuo Kimura , Satoshi Hirota , Hiroaki Kondo , Hiroyuki Kuwano , Toshiaki Akita , Tsutomu Sano
- Applicant: Noriharu Nakagawa , Masanobu Kurumaji , Kazuyuki Kijayama , Koichi Fukushima , Nobuo Kimura , Satoshi Hirota , Hiroaki Kondo , Hiroyuki Kuwano , Toshiaki Akita , Tsutomu Sano
- Applicant Address: JPX Kobe
- Assignee: Kabushiki Kaisha Kobe Seiko Sho
- Current Assignee: Kabushiki Kaisha Kobe Seiko Sho
- Current Assignee Address: JPX Kobe
- Priority: JPX61-191128 19860813; JPX61-202090 19860828; JPX62-002071 19870108
- Main IPC: B30B15/24
- IPC: B30B15/24
Abstract:
A press working control method for controlling the press working operation of a press having a pressure cylinder for applying a working pressure to a workpiece, a press slide operatively connected to the pressure cylinder and carrying a movable die, a bed fixedly mounted with a fixed die, a plurality of control cylinders supporting the press slide in a level position during the press working operation, and a press control system for carrying out the press working control method. The press control system comprises a first pressure detector for detecting the operative pressure of the pressure cylinder, quick-response control valves each for regulating the height of the control cylinder, height detectors each for detecting the height of the control cylinder, second pressure detectors each for detecting the operative pressure of the control cylinder, servovalves each for detecting the operative pressure of the control cylinder, and a control unit including a computer for deciding manipulated variables for the height and operative pressure control of the control cylinders on the basis of data obtained by the detectors. The respective heights of the control cylinders are regulated individually so that the press slide is maintained in a level position during the press working operation, while the respective operative pressure of the control cylinders are regulated so that a desired working pressure is applied to the workpiece.
Public/Granted literature
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