JPS57138558A - Detecting device of contact of tool with work, as well defect in tool - Google Patents

Detecting device of contact of tool with work, as well defect in tool

Info

Publication number
JPS57138558A
JPS57138558A JP2021981A JP2021981A JPS57138558A JP S57138558 A JPS57138558 A JP S57138558A JP 2021981 A JP2021981 A JP 2021981A JP 2021981 A JP2021981 A JP 2021981A JP S57138558 A JPS57138558 A JP S57138558A
Authority
JP
Japan
Prior art keywords
tool
signal
contact
over
work
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
JP2021981A
Other languages
Japanese (ja)
Inventor
Eiji Murashige
Hiroaki Shimazutsu
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 Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP2021981A priority Critical patent/JPS57138558A/en
Publication of JPS57138558A publication Critical patent/JPS57138558A/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 detect the life of a tool properly by providing a tool holding member with an AE sensor for detecting defect in a tool and providing a work holding member with an AE sensor for contact detection to detect the contact of a tool and a work. CONSTITUTION:When the start button is pressed down, an AE signal control device 18 changes over a signal change-over unit 20 by means of signal to a pre- amplifier 5b side and at the same time sets up the frequency range of a band pass filter change-over unit 21 at a width (10kHz-1MHz) that is suitable for signal processing of an AE signal for sensing contact. When contact of the tool with a work is sensed by the signal from the AE sensor 17, the signal change- over units 20 and 27 are changed-over and at the same time a band-pass filter change-over unit 21 is also changed over and the frequency is changed to the frequency range (100kHz-1MHz) for sensing a defect in the tool, and it is sensed by the signal from the AE sensor 4.
JP2021981A 1981-02-16 1981-02-16 Detecting device of contact of tool with work, as well defect in tool Pending JPS57138558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021981A JPS57138558A (en) 1981-02-16 1981-02-16 Detecting device of contact of tool with work, as well defect in tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021981A JPS57138558A (en) 1981-02-16 1981-02-16 Detecting device of contact of tool with work, as well defect in tool

Publications (1)

Publication Number Publication Date
JPS57138558A true JPS57138558A (en) 1982-08-26

Family

ID=12021046

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021981A Pending JPS57138558A (en) 1981-02-16 1981-02-16 Detecting device of contact of tool with work, as well defect in tool

Country Status (1)

Country Link
JP (1) JPS57138558A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709198A (en) * 1985-05-29 1987-11-24 Kabushiki Kaisha Toyota Chuo Kenkyusho High-speed machining controller
JPS6391352U (en) * 1986-12-03 1988-06-13
US5030920A (en) * 1988-10-14 1991-07-09 Sumitomo Electric Industries, Ltd. Method of detecting wear of cutting tool by ascertaining a tool workpiece contact resistance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709198A (en) * 1985-05-29 1987-11-24 Kabushiki Kaisha Toyota Chuo Kenkyusho High-speed machining controller
JPS6391352U (en) * 1986-12-03 1988-06-13
US5030920A (en) * 1988-10-14 1991-07-09 Sumitomo Electric Industries, Ltd. Method of detecting wear of cutting tool by ascertaining a tool workpiece contact resistance

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