JPS55120954A - Method for detection of machine tool life - Google Patents

Method for detection of machine tool life

Info

Publication number
JPS55120954A
JPS55120954A JP2908779A JP2908779A JPS55120954A JP S55120954 A JPS55120954 A JP S55120954A JP 2908779 A JP2908779 A JP 2908779A JP 2908779 A JP2908779 A JP 2908779A JP S55120954 A JPS55120954 A JP S55120954A
Authority
JP
Japan
Prior art keywords
machine tool
circuit
current
load
tool life
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
JP2908779A
Other languages
Japanese (ja)
Other versions
JPS5923943B2 (en
Inventor
Yoshitoku Kozai
Shigeki Kawada
Yoshimoto Fujioka
Naoto Oota
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 JP2908779A priority Critical patent/JPS5923943B2/en
Publication of JPS55120954A publication Critical patent/JPS55120954A/en
Publication of JPS5923943B2 publication Critical patent/JPS5923943B2/en
Expired 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 provide a method for automatic and accurate control of machine tool life by detecting the rate of load applied to the machine tool. CONSTITUTION:Load applied to the machine tool is in proportion to current Ia of armature. Load rate is output by the armature current detection circuit 10 and current absolute value circuit 10''. It is regulated by the load rate regulating circuit 10''' and input into the strong current sequence circuit 13 after conversion to digital volume by means of A/D converter 11. The strong current sequence circuit 13 compares between actual and standard load rates and inputs machine tool exchange instruction signal ATC into the machine exchange device 15 through the strong current panel 14.
JP2908779A 1979-03-13 1979-03-13 Tool life detection method Expired JPS5923943B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2908779A JPS5923943B2 (en) 1979-03-13 1979-03-13 Tool life detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2908779A JPS5923943B2 (en) 1979-03-13 1979-03-13 Tool life detection method

Publications (2)

Publication Number Publication Date
JPS55120954A true JPS55120954A (en) 1980-09-17
JPS5923943B2 JPS5923943B2 (en) 1984-06-06

Family

ID=12266560

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2908779A Expired JPS5923943B2 (en) 1979-03-13 1979-03-13 Tool life detection method

Country Status (1)

Country Link
JP (1) JPS5923943B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6384560B1 (en) 1999-09-10 2002-05-07 Yoshiaki Kakino Abnormality detection apparatus for tool and numerical control apparatus provided with same
WO2024116313A1 (en) * 2022-11-30 2024-06-06 株式会社Fuji Machine tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6384560B1 (en) 1999-09-10 2002-05-07 Yoshiaki Kakino Abnormality detection apparatus for tool and numerical control apparatus provided with same
WO2024116313A1 (en) * 2022-11-30 2024-06-06 株式会社Fuji Machine tool

Also Published As

Publication number Publication date
JPS5923943B2 (en) 1984-06-06

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