JPS54141968A - Numerical control device - Google Patents

Numerical control device

Info

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
Application number
JP4876178A
Other languages
Japanese (ja)
Inventor
Takatomo Izume
Akinami Ohashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4876178A priority Critical patent/JPS54141968A/en
Publication of JPS54141968A publication Critical patent/JPS54141968A/en
Pending legal-status Critical Current

Links

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
JP4876178A 1978-04-26 1978-04-26 Numerical control device Pending JPS54141968A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (7)

* Cited by examiner, † Cited by third party
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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