JPS6440266A - Working pressure control device for polishing machine - Google Patents
Working pressure control device for polishing machineInfo
- Publication number
- JPS6440266A JPS6440266A JP62194869A JP19486987A JPS6440266A JP S6440266 A JPS6440266 A JP S6440266A JP 62194869 A JP62194869 A JP 62194869A JP 19486987 A JP19486987 A JP 19486987A JP S6440266 A JPS6440266 A JP S6440266A
- Authority
- JP
- Japan
- Prior art keywords
- load
- working pressure
- signal
- output
- comparator
- 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
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
PURPOSE:To easily apply a precise working pressure by providing control means for comparing a load reference signal with a signal based on a detection signal detected by load detecting means and controlling constant an output from pressure applying means according to the result of comparison. CONSTITUTION:A comparator 4 compares a set value 17 of a control load with an output from a polarity inverter 13 based on a load detection signal measured by a load cell 9. A deviation signal 18 from the comparator 4 is input to a controller 5. The controller 5 decides a control characteristic of a closed loop circuit and outputs a signal as a set voltage of an electropneumatic converter 6. An output from the electropneumatic converter 6 is input to a directional selector valve 7. A pneumatic pressure selected by the directional selector valve 7 is applied to a cylinder 8. Thus, a working pressure to be applied to a work is automatically set.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62194869A JPS6440266A (en) | 1987-08-04 | 1987-08-04 | Working pressure control device for polishing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62194869A JPS6440266A (en) | 1987-08-04 | 1987-08-04 | Working pressure control device for polishing machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6440266A true JPS6440266A (en) | 1989-02-10 |
Family
ID=16331655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62194869A Pending JPS6440266A (en) | 1987-08-04 | 1987-08-04 | Working pressure control device for polishing machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6440266A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5208251A (en) * | 1986-05-09 | 1993-05-04 | Warner-Lambert Company | Styryl pyrazoles, isoxazoles and analogs thereof having activity as 5-lipoxygenase inhibitors, pharmaceutical compositions and methods of use therefor |
US6224712B1 (en) | 1997-02-17 | 2001-05-01 | Nec Corporation | Polishing apparatus |
JP2002113646A (en) * | 2000-10-10 | 2002-04-16 | Olympus Optical Co Ltd | Method and device for working lens |
-
1987
- 1987-08-04 JP JP62194869A patent/JPS6440266A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5208251A (en) * | 1986-05-09 | 1993-05-04 | Warner-Lambert Company | Styryl pyrazoles, isoxazoles and analogs thereof having activity as 5-lipoxygenase inhibitors, pharmaceutical compositions and methods of use therefor |
US6224712B1 (en) | 1997-02-17 | 2001-05-01 | Nec Corporation | Polishing apparatus |
JP2002113646A (en) * | 2000-10-10 | 2002-04-16 | Olympus Optical Co Ltd | Method and device for working lens |
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