JPS5775310A - Detector for positional error of numerical control machine tool - Google Patents

Detector for positional error of numerical control machine tool

Info

Publication number
JPS5775310A
JPS5775310A JP15243580A JP15243580A JPS5775310A JP S5775310 A JPS5775310 A JP S5775310A JP 15243580 A JP15243580 A JP 15243580A JP 15243580 A JP15243580 A JP 15243580A JP S5775310 A JPS5775310 A JP S5775310A
Authority
JP
Japan
Prior art keywords
signal
chz
error
accuracy
fold
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
Application number
JP15243580A
Other languages
Japanese (ja)
Other versions
JPH0338604B2 (en
Inventor
Yoshinori Nakanishi
Etsuji Oda
Norihiro Kabei
Koji Ito
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.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine 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 Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP15243580A priority Critical patent/JPS5775310A/en
Publication of JPS5775310A publication Critical patent/JPS5775310A/en
Publication of JPH0338604B2 publication Critical patent/JPH0338604B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
    • G05B19/21—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE:To increase the resolution in an economical way, by increasing the accuracy up to the n-fold value in terms of an electronic circuit. CONSTITUTION:An incremental shaft encoder 12 produces channel signals CHA, CHB and CHZ of phases (a), (b) and (z) respectively. The signals CHA and CHB have a difference of phase of 90 deg. to each other and can disriminate the rotating direction of a motor 11. The signal CHZ means a 1-rotation signal which is produced with each rotation of the encoder 12. A counting part 15 is set at zero by the clear signal CL to be the original point of the position data. An n-fold accuracy counter 16 receives an input by the channel signal, and a 2-bit data is formed at the counter 16 to obtain the n-fold accuracy. An error detecting part 17 detects no error when a count-zero signal (g) is produced at the part 15 at the moment when the signal CHZ is applied, and then applies the error signal ERROR to the computer side of an NC device when no CHZ nor (g) is applied.
JP15243580A 1980-10-30 1980-10-30 Detector for positional error of numerical control machine tool Granted JPS5775310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15243580A JPS5775310A (en) 1980-10-30 1980-10-30 Detector for positional error of numerical control machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15243580A JPS5775310A (en) 1980-10-30 1980-10-30 Detector for positional error of numerical control machine tool

Publications (2)

Publication Number Publication Date
JPS5775310A true JPS5775310A (en) 1982-05-11
JPH0338604B2 JPH0338604B2 (en) 1991-06-11

Family

ID=15540464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15243580A Granted JPS5775310A (en) 1980-10-30 1980-10-30 Detector for positional error of numerical control machine tool

Country Status (1)

Country Link
JP (1) JPS5775310A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59106006A (en) * 1982-12-10 1984-06-19 Toyota Central Res & Dev Lab Inc Increment-type detector of driving quantity
JPS60180436A (en) * 1984-02-27 1985-09-14 株式会社日立製作所 Device for protecting encoder motor
JPS61184606A (en) * 1985-02-13 1986-08-18 Fanuc Ltd Machine's position detector
JPS61235910A (en) * 1985-04-12 1986-10-21 Hitachi Ltd Control device for robot positioning
JPH01278124A (en) * 1988-04-30 1989-11-08 Hitachi Koki Co Ltd Count error detecting device for counting device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5095687A (en) * 1973-12-27 1975-07-30

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5095687A (en) * 1973-12-27 1975-07-30

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59106006A (en) * 1982-12-10 1984-06-19 Toyota Central Res & Dev Lab Inc Increment-type detector of driving quantity
JPS60180436A (en) * 1984-02-27 1985-09-14 株式会社日立製作所 Device for protecting encoder motor
JPS61184606A (en) * 1985-02-13 1986-08-18 Fanuc Ltd Machine's position detector
JPS61235910A (en) * 1985-04-12 1986-10-21 Hitachi Ltd Control device for robot positioning
JPH01278124A (en) * 1988-04-30 1989-11-08 Hitachi Koki Co Ltd Count error detecting device for counting device

Also Published As

Publication number Publication date
JPH0338604B2 (en) 1991-06-11

Similar Documents

Publication Publication Date Title
KR900002366B1 (en) Automatic error compensator for position adjustor
US5525885A (en) Position detecting apparatus and position compensating method therefor
EP0126211A3 (en) Incremental length or angle measuring system
US4358723A (en) Method and apparatus for measuring the rotation of a work table
EP0139769A4 (en) System of detecting absolute position of servo control system.
KR840000862B1 (en) Tracer control system
US5202842A (en) Rotational position detecting device which compensates for eccentricity of rotating object
US4882529A (en) Pulse encoder
US2988681A (en) Error compensated servo
EP0054935A3 (en) High speed digital position monitoring system
JPS5775310A (en) Detector for positional error of numerical control machine tool
JPS6138409A (en) Measuring device for position of numerical control machine tool, etc.
US5164896A (en) Positioning system
JPS6110715A (en) Absolute-position detecting system
US4689539A (en) Speed detecting device
EP0200791A1 (en) Method and apparatus for detecting position
CN112433543A (en) Method for accurately positioning steering wheel in zero direction
US5119004A (en) Reference-point return method
JPS56118611A (en) Highly accurate split reader for signal
JPS62864A (en) Speed detecting device
JPS5748449A (en) Detecting method of operating position of limit switch detecting original point in numerically controlled machine tool
JPH0588751A (en) Positioning device
JPS6457174A (en) Speed signal detector
JPS57178106A (en) Error correcting device for length measuring device
KR100252079B1 (en) Apparatus for detecting position