JPS56139857A - Threshold value setting method of tool abnormality detector - Google Patents

Threshold value setting method of tool abnormality detector

Info

Publication number
JPS56139857A
JPS56139857A JP3949880A JP3949880A JPS56139857A JP S56139857 A JPS56139857 A JP S56139857A JP 3949880 A JP3949880 A JP 3949880A JP 3949880 A JP3949880 A JP 3949880A JP S56139857 A JPS56139857 A JP S56139857A
Authority
JP
Japan
Prior art keywords
threshold value
tool
abnormality detector
value setting
setting method
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
JP3949880A
Other languages
Japanese (ja)
Inventor
Hideyuki Wakai
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP3949880A priority Critical patent/JPS56139857A/en
Priority to DE19813111425 priority patent/DE3111425A1/en
Priority to GB8109126A priority patent/GB2075875B/en
Priority to US06/247,233 priority patent/US4456960A/en
Publication of JPS56139857A publication Critical patent/JPS56139857A/en
Priority to GB08304276A priority patent/GB2118074B/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
    • 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
    • G05B2219/34465—Safety, control of correct operation, abnormal states

Abstract

PURPOSE:To determine a threshold value with a tool abnormality detector, by successively storing input from an NC machine tool which is variable in accordance with the state of a tool as a switch is turned on. CONSTITUTION:Based on NC information NI from an NC machine tool 2, a location on a tool is decided whether it could cause any abnormality in the course of machining. A switch 3 for setting a threshold value is then checked whether on or not. If it is on, an abnormality is to be checked for setting a threshold value which requires successive writing of input data from the machine tool 2 in a given memory.
JP3949880A 1980-03-27 1980-03-27 Threshold value setting method of tool abnormality detector Pending JPS56139857A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP3949880A JPS56139857A (en) 1980-03-27 1980-03-27 Threshold value setting method of tool abnormality detector
DE19813111425 DE3111425A1 (en) 1980-03-27 1981-03-24 METHOD AND DEVICE FOR DETERMINING ABNORMAL INTERFERENCE SIZES WHEN OPERATING A MACHINE TOOL
GB8109126A GB2075875B (en) 1980-03-27 1981-03-24 Method and device for detecting tool abnormality in machine tools
US06/247,233 US4456960A (en) 1980-03-27 1981-03-25 Method and device for detecting tool abnormality in machine tools
GB08304276A GB2118074B (en) 1980-03-27 1983-02-16 Method and device for detecting tool abnormality in numerically controlled machine tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3949880A JPS56139857A (en) 1980-03-27 1980-03-27 Threshold value setting method of tool abnormality detector

Publications (1)

Publication Number Publication Date
JPS56139857A true JPS56139857A (en) 1981-10-31

Family

ID=12554706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3949880A Pending JPS56139857A (en) 1980-03-27 1980-03-27 Threshold value setting method of tool abnormality detector

Country Status (1)

Country Link
JP (1) JPS56139857A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02266916A (en) * 1989-04-07 1990-10-31 Nippon Steel Corp Method and apparatus for preparing steel pipe coated with fiber reinforced resin

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5531541A (en) * 1978-08-23 1980-03-05 Toshiba Mach Co Ltd Abnormality detecting system for cutting tool

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5531541A (en) * 1978-08-23 1980-03-05 Toshiba Mach Co Ltd Abnormality detecting system for cutting tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02266916A (en) * 1989-04-07 1990-10-31 Nippon Steel Corp Method and apparatus for preparing steel pipe coated with fiber reinforced resin

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