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JPS5760401A - Status release system of numerical control machine tool - Google Patents

Status release system of numerical control machine tool

Info

Publication number
JPS5760401A
JPS5760401A JP13660780A JP13660780A JPS5760401A JP S5760401 A JPS5760401 A JP S5760401A JP 13660780 A JP13660780 A JP 13660780A JP 13660780 A JP13660780 A JP 13660780A JP S5760401 A JPS5760401 A JP S5760401A
Authority
JP
Japan
Prior art keywords
power source
electric power
cut
comparator
motor
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
JP13660780A
Other languages
Japanese (ja)
Inventor
Gotaro Gamo
Mitsuo Kinoshita
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.)
Fanuc Corp
Original Assignee
Fanuc Corp
Fujitsu Fanuc 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 Fanuc Corp, Fujitsu Fanuc Ltd filed Critical Fanuc Corp
Priority to JP13660780A priority Critical patent/JPS5760401A/en
Priority to US06/304,903 priority patent/US4484287A/en
Priority to EP81304483A priority patent/EP0049151B1/en
Priority to DE8181304483T priority patent/DE3177068D1/en
Priority to KR1019810003649A priority patent/KR890000026B1/en
Publication of JPS5760401A publication Critical patent/JPS5760401A/en
Pending 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
    • G05B19/406—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 monitoring or safety
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37154—Encoder and absolute position counter
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37473—Resolver
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37486—Resolver emits pulses at zerocrossings, counter
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/50—Machine tool, machine tool null till machine tool work handling
    • G05B2219/50083—Power loss, measures again loss of power
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/50—Machine tool, machine tool null till machine tool work handling
    • G05B2219/50097—After repair, dry run program until block before restart is detected

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Numerical Control (AREA)
  • Safety Devices In Control Systems (AREA)

Abstract

PURPOSE:To shorten the time required for starting to work, by storing a position control information before cutting off an electric power source, in a nonvolatile memory, and detecting an absolute position of a moving part such as a motor or a table, etc. CONSTITUTION:A present position of a table 12 driven by a DC motor 11 of a machine tool is detected by a position detector 13, a position signal FP corresponding to the present position is applied to reversible counters 14, 15, and is reversibly counted by the counters. Contents of the couters 14, 15 are always stored in a nonvolatile memory 16 at every prescribed very short item. If a moving part has moved by a very small distance when an electric power source has been cut off, a numerical value immediately before the electric power source has been cut off is set to a command counter 3 from the memory 16 when the electric power source is turned on again, and a command phase signal CPS corresponding to said numerical value is inputted to a phase comparator 9. Also, a phase signal DSP correspondin to a very small distance which has moved when the electric power source has been cut off, from a resolver 7 is waveform-shaped 8, is inputted to a comparator 9, and in the comparator 9, the motor 11 is rotated so that a phase difference of 2 signals becomes zero, and is stopped at a position immediately before cutting off the electric power source.
JP13660780A 1980-09-30 1980-09-30 Status release system of numerical control machine tool Pending JPS5760401A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP13660780A JPS5760401A (en) 1980-09-30 1980-09-30 Status release system of numerical control machine tool
US06/304,903 US4484287A (en) 1980-09-30 1981-09-23 System for restoring numerically controlled machine tool to former condition
EP81304483A EP0049151B1 (en) 1980-09-30 1981-09-29 System for restoring numerically controlled machine tool to former condition
DE8181304483T DE3177068D1 (en) 1980-09-30 1981-09-29 System for restoring numerically controlled machine tool to former condition
KR1019810003649A KR890000026B1 (en) 1980-09-30 1981-09-29 System for restoring numerically controlled machine tool to former condition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13660780A JPS5760401A (en) 1980-09-30 1980-09-30 Status release system of numerical control machine tool

Publications (1)

Publication Number Publication Date
JPS5760401A true JPS5760401A (en) 1982-04-12

Family

ID=15179244

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13660780A Pending JPS5760401A (en) 1980-09-30 1980-09-30 Status release system of numerical control machine tool

Country Status (1)

Country Link
JP (1) JPS5760401A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58186805A (en) * 1982-04-27 1983-10-31 Fanuc Ltd Restarting system for work of machine tool with numerical controller
JPS59142613A (en) * 1983-02-03 1984-08-15 Fanuc Ltd Restart controller of numerical control working
WO1984004180A1 (en) * 1983-04-19 1984-10-25 Fanuc Ltd Method of handling power failure in apparatus employing absolute position feedback
JPS59201107A (en) * 1983-04-28 1984-11-14 Fanuc Ltd Control system for restart of processing with numerical control
JPS61118807A (en) * 1984-11-15 1986-06-06 Okuma Mach Works Ltd Method and device for reset to working position of nc program
JP6074490B1 (en) * 2015-12-22 2017-02-01 株式会社ソディック Laminate modeling apparatus and method for resuming program of additive manufacturing apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58186805A (en) * 1982-04-27 1983-10-31 Fanuc Ltd Restarting system for work of machine tool with numerical controller
JPS59142613A (en) * 1983-02-03 1984-08-15 Fanuc Ltd Restart controller of numerical control working
WO1984004180A1 (en) * 1983-04-19 1984-10-25 Fanuc Ltd Method of handling power failure in apparatus employing absolute position feedback
JPS59201107A (en) * 1983-04-28 1984-11-14 Fanuc Ltd Control system for restart of processing with numerical control
JPS61118807A (en) * 1984-11-15 1986-06-06 Okuma Mach Works Ltd Method and device for reset to working position of nc program
JP6074490B1 (en) * 2015-12-22 2017-02-01 株式会社ソディック Laminate modeling apparatus and method for resuming program of additive manufacturing apparatus
US10363604B2 (en) 2015-12-22 2019-07-30 Sodick Co., Ltd. Program resumption method of a lamination molding apparatus

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