JPS54141968A - Numerical control device - Google Patents
Numerical control deviceInfo
- Publication number
- JPS54141968A JPS54141968A JP4876178A JP4876178A JPS54141968A JP S54141968 A JPS54141968 A JP S54141968A JP 4876178 A JP4876178 A JP 4876178A JP 4876178 A JP4876178 A JP 4876178A JP S54141968 A JPS54141968 A JP S54141968A
- Authority
- JP
- Japan
- Prior art keywords
- machine
- locus
- feedforward
- positioning
- position error
- 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
- 238000005070 sampling Methods 0.000 abstract 1
Landscapes
- Numerical Control (AREA)
- Feedback Control In General (AREA)
- Control Of Position Or Direction (AREA)
Abstract
PURPOSE: To reduce time of the positioning and to improve the performance by providing an information input device which commands a locus of the control object machine, locus distributing device, move quantity detector, position error circuit and feedforward digital servomechanism.
CONSTITUTION: The distrubuting device 13 divides a locus of the machine, which is punched in paper tape 11 read by the tape reader 12, into short segments 1 for each sampling time. The integrating device 14 subtracts a move quantity m of the machine 18, which is detected by the detector 19, from the short segment 1 and integrates it to provide a position error PE as the output, the feedforward circuit multiplies the short segment 1 by a factor α to provide it as the output. The D-A converter 15 delivers the sum of both outputs of the internrating device 14 and feedforward circuit as a speed command signal. Therefore a delay of the machine can be made less and time of the positioning can be reduced.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4876178A JPS54141968A (en) | 1978-04-26 | 1978-04-26 | Numerical control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4876178A JPS54141968A (en) | 1978-04-26 | 1978-04-26 | Numerical control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54141968A true JPS54141968A (en) | 1979-11-05 |
Family
ID=12812256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4876178A Pending JPS54141968A (en) | 1978-04-26 | 1978-04-26 | Numerical control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54141968A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57127293U (en) * | 1981-02-03 | 1982-08-07 | ||
| JPS59194207A (en) * | 1983-04-20 | 1984-11-05 | Fanuc Ltd | Correction system for delay error of servo system in numerical control |
| JPS60233703A (en) * | 1984-05-04 | 1985-11-20 | Kawasaki Heavy Ind Ltd | Feed speed controller of hydraulic drive mechanism |
| JPS61214002A (en) * | 1985-03-20 | 1986-09-22 | Toshiba Mach Co Ltd | Control system for follow-up error |
| US4675490A (en) * | 1981-06-25 | 1987-06-23 | Fanuc Limited | Method and apparatus for controlling electrode position in an electric discharge machine by counting feedback pulses and repeatedly adding the count |
| JPH0199485A (en) * | 1987-10-09 | 1989-04-18 | Toshiba Corp | Controlling device for servo motor |
-
1978
- 1978-04-26 JP JP4876178A patent/JPS54141968A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57127293U (en) * | 1981-02-03 | 1982-08-07 | ||
| JPH0140158Y2 (en) * | 1981-02-03 | 1989-12-01 | ||
| US4675490A (en) * | 1981-06-25 | 1987-06-23 | Fanuc Limited | Method and apparatus for controlling electrode position in an electric discharge machine by counting feedback pulses and repeatedly adding the count |
| JPS59194207A (en) * | 1983-04-20 | 1984-11-05 | Fanuc Ltd | Correction system for delay error of servo system in numerical control |
| JPS60233703A (en) * | 1984-05-04 | 1985-11-20 | Kawasaki Heavy Ind Ltd | Feed speed controller of hydraulic drive mechanism |
| JPS61214002A (en) * | 1985-03-20 | 1986-09-22 | Toshiba Mach Co Ltd | Control system for follow-up error |
| JPH0199485A (en) * | 1987-10-09 | 1989-04-18 | Toshiba Corp | Controlling device for servo motor |
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