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JPS57211602A - Numerical controlling method - Google Patents

Numerical controlling method

Info

Publication number
JPS57211602A
JPS57211602A JP9563981A JP9563981A JPS57211602A JP S57211602 A JPS57211602 A JP S57211602A JP 9563981 A JP9563981 A JP 9563981A JP 9563981 A JP9563981 A JP 9563981A JP S57211602 A JPS57211602 A JP S57211602A
Authority
JP
Japan
Prior art keywords
length
movement
cutting tool
case
next block
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
JP9563981A
Other languages
Japanese (ja)
Inventor
Hajime Kishi
Maki Seki
Kunio Tanaka
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 JP9563981A priority Critical patent/JPS57211602A/en
Priority to EP82303199A priority patent/EP0068765B1/en
Priority to US06/389,936 priority patent/US4506331A/en
Priority to DE8282303199T priority patent/DE3276500D1/en
Priority to KR8202731A priority patent/KR880002420B1/en
Publication of JPS57211602A publication Critical patent/JPS57211602A/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
    • G05B19/42—Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine
    • G05B19/4202—Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine preparation of the programme medium using a drawing, a model
    • 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
    • G05B2219/34—Director, elements to supervisory
    • G05B2219/34101—Data compression, look ahead segment calculation, max segment lenght

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Numerical Control (AREA)

Abstract

PURPOSE:To shorten the working time and to improve the working efficiency, by prefetching a position command of the next block during a numerically controlled work and comparing an actual movement length of the movement based on this command with an allowable movement length to perform processings. CONSTITUTION:In a numerically controlled device which prefetches NC data of the next block during a numerically controlled work, an allowable movement length TD and an allowable length TW are set preliminarily. A length AD from a current position R0 of a cutting tool to a next point R1 based of data prefetch is operated, and the length TD and the length AD are compared with each other. In case of AD>=TD, the cutting tool is moved along a line R0R1, and the next block is prefetched during the movement of the cutting tool as R1 R0, R2 R1..., and this operation is repeated. In case of AD<TD, the movement control based on the position command of the current block is omitted, and a line S connecting points R0 and R1 is operated, and NC data at the point R2 is prefetched, and a length AW from the point R2 to the line S is obtained. The length AW and the length TW are compared with each other; and in case of AW<TW, the position command of the next block is read; and in case of AW>=TW, the cutting tool is moved to a position indicated by the just preceding block.
JP9563981A 1981-06-20 1981-06-20 Numerical controlling method Pending JPS57211602A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP9563981A JPS57211602A (en) 1981-06-20 1981-06-20 Numerical controlling method
EP82303199A EP0068765B1 (en) 1981-06-20 1982-06-18 Numerical control method
US06/389,936 US4506331A (en) 1981-06-20 1982-06-18 Numerical control method
DE8282303199T DE3276500D1 (en) 1981-06-20 1982-06-18 Numerical control method
KR8202731A KR880002420B1 (en) 1981-06-20 1982-06-18 Numerical control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9563981A JPS57211602A (en) 1981-06-20 1981-06-20 Numerical controlling method

Publications (1)

Publication Number Publication Date
JPS57211602A true JPS57211602A (en) 1982-12-25

Family

ID=14143074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9563981A Pending JPS57211602A (en) 1981-06-20 1981-06-20 Numerical controlling method

Country Status (1)

Country Link
JP (1) JPS57211602A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6048506A (en) * 1983-07-23 1985-03-16 エ−イ−・ピ−エルシ− Apparatus and method for controlling working machine
JPS6125211A (en) * 1984-07-13 1986-02-04 Yaskawa Electric Mfg Co Ltd Parallel processing numerical controller
JPS6142605U (en) * 1984-08-20 1986-03-19 トキコ株式会社 industrial robot
JPS61269707A (en) * 1985-05-24 1986-11-29 Hitachi Seiki Co Ltd Controller for work size correction of nc machine tool
JPS62130411A (en) * 1985-11-30 1987-06-12 Fanuc Ltd Numerical control method
JPS62130412A (en) * 1985-12-03 1987-06-12 Fanuc Ltd Numerical control method
JPS6326707A (en) * 1986-07-21 1988-02-04 Makino Milling Mach Co Ltd Method and device for prevention of generation of path error caused by fast nc working droop
JPS63127302A (en) * 1986-11-17 1988-05-31 Matsushita Electric Ind Co Ltd Electronic equipment
WO1988005565A1 (en) * 1987-01-23 1988-07-28 Fanuc Ltd Method of numerical control having a parallel processing function
JPS63254502A (en) * 1987-04-10 1988-10-21 Fanuc Ltd Robot controller

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6048506A (en) * 1983-07-23 1985-03-16 エ−イ−・ピ−エルシ− Apparatus and method for controlling working machine
JPS6125211A (en) * 1984-07-13 1986-02-04 Yaskawa Electric Mfg Co Ltd Parallel processing numerical controller
JPS6142605U (en) * 1984-08-20 1986-03-19 トキコ株式会社 industrial robot
JPS61269707A (en) * 1985-05-24 1986-11-29 Hitachi Seiki Co Ltd Controller for work size correction of nc machine tool
JPS62130411A (en) * 1985-11-30 1987-06-12 Fanuc Ltd Numerical control method
JPS62130412A (en) * 1985-12-03 1987-06-12 Fanuc Ltd Numerical control method
JPS6326707A (en) * 1986-07-21 1988-02-04 Makino Milling Mach Co Ltd Method and device for prevention of generation of path error caused by fast nc working droop
JPS63127302A (en) * 1986-11-17 1988-05-31 Matsushita Electric Ind Co Ltd Electronic equipment
WO1988005565A1 (en) * 1987-01-23 1988-07-28 Fanuc Ltd Method of numerical control having a parallel processing function
JPS63254502A (en) * 1987-04-10 1988-10-21 Fanuc Ltd Robot controller

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