JPS5621749A - Detector for abnormality of tool - Google Patents

Detector for abnormality of tool

Info

Publication number
JPS5621749A
JPS5621749A JP9530179A JP9530179A JPS5621749A JP S5621749 A JPS5621749 A JP S5621749A JP 9530179 A JP9530179 A JP 9530179A JP 9530179 A JP9530179 A JP 9530179A JP S5621749 A JPS5621749 A JP S5621749A
Authority
JP
Japan
Prior art keywords
signal
machining
circuit
cutting edge
dividing
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
JP9530179A
Other languages
Japanese (ja)
Inventor
Akio Kodaira
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9530179A priority Critical patent/JPS5621749A/en
Publication of JPS5621749A publication Critical patent/JPS5621749A/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
    • G05B19/4065—Monitoring tool breakage, life or condition

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Machine Tool Sensing Apparatuses (AREA)

Abstract

PURPOSE:To easily detect abnormal condition of each cutting edge by dividing compound machining signals of each cutting edge into individual machining signal based on distributing signals which correspond to the machining time of each cutting edge of a tool. CONSTITUTION:A distributing signal 300 being output from a distributing signal generating circuit 20, which is consisted of a phase locked loop 22 to which a synchronizing signal 200 is fed, a programmable counter 24, and a counter 26, is employed as a clock signal to the counter 26 and is fed to a dividing circuit 28 which constituted of an analog multiplexer. The compound machining signal 100 is synchronous at an analog machining circuit 30 with the dividing signal 300 which divides output from the analog machining circuit 30 into a block of each system at the dividing circuit 28. The individual machining signal 400 of each dividing circuit 28 is supplied to the comparator 32, and abnormality of the cutting edge is detected by comparing said signal with the standard value E.
JP9530179A 1979-07-26 1979-07-26 Detector for abnormality of tool Pending JPS5621749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9530179A JPS5621749A (en) 1979-07-26 1979-07-26 Detector for abnormality of tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9530179A JPS5621749A (en) 1979-07-26 1979-07-26 Detector for abnormality of tool

Publications (1)

Publication Number Publication Date
JPS5621749A true JPS5621749A (en) 1981-02-28

Family

ID=14133942

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9530179A Pending JPS5621749A (en) 1979-07-26 1979-07-26 Detector for abnormality of tool

Country Status (1)

Country Link
JP (1) JPS5621749A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59207874A (en) * 1983-05-10 1984-11-26 大同特殊鋼株式会社 Silicon nitride hollow body and manufacture
JPS61197487A (en) * 1985-02-22 1986-09-01 株式会社　陶研産業 Antiabrasive sintered sphere

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5548513A (en) * 1978-10-03 1980-04-07 Komatsu Ltd Abnormality detecting method of milling cutter in cutting machine and its abnormality detector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5548513A (en) * 1978-10-03 1980-04-07 Komatsu Ltd Abnormality detecting method of milling cutter in cutting machine and its abnormality detector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59207874A (en) * 1983-05-10 1984-11-26 大同特殊鋼株式会社 Silicon nitride hollow body and manufacture
JPH0513906B2 (en) * 1983-05-10 1993-02-23 Daido Steel Co Ltd
JPS61197487A (en) * 1985-02-22 1986-09-01 株式会社　陶研産業 Antiabrasive sintered sphere
JPH0261440B2 (en) * 1985-02-22 1990-12-20 Token Industries

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