JPS5627776A - Tool monitoring device - Google Patents

Tool monitoring device

Info

Publication number
JPS5627776A
JPS5627776A JP10439579A JP10439579A JPS5627776A JP S5627776 A JPS5627776 A JP S5627776A JP 10439579 A JP10439579 A JP 10439579A JP 10439579 A JP10439579 A JP 10439579A JP S5627776 A JPS5627776 A JP S5627776A
Authority
JP
Japan
Prior art keywords
frequency component
intensity
tool
work
electric transducer
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
JP10439579A
Other languages
Japanese (ja)
Inventor
Yoshito Tanaka
Takahiko Inari
Mitsuhito Kamei
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
Nippon Steel Corp
Original Assignee
Mitsubishi Electric Corp
Sumitomo Metal 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 Electric Corp, Sumitomo Metal Industries Ltd filed Critical Mitsubishi Electric Corp
Priority to JP10439579A priority Critical patent/JPS5627776A/en
Publication of JPS5627776A publication Critical patent/JPS5627776A/en
Pending legal-status Critical Current

Links

Landscapes

  • Machine Tool Sensing Apparatuses (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

PURPOSE: To monitor a tool such as grinding wheel and cutting tool placed in an actual work for the purpose of knowing proper replacement time by applying a coherent light to cutting marks left on the surface of the work and analyzing the output signals from a photo-electric transducer which receives the reflected beams.
CONSTITUTION: Laser 30 is applied to the work 12. No.1 photo-electric transducer 13A which is to sense the intensity of the produced diffraction pattern's 10 low frequency component, and No.2 phto-electric transducer 13B which is to sense the intensity of the high-frequency component, shall be arranged over the diffraction pattern 10. Electric signals obtained by this transducing for each frequency component are amplified by amplifiers 14, 15, and the intensity ratio of the low frequency component to high frequency component is calculated by a subtractor 16 to obtain an output 17. The timing of transition in the output 17 from the stabilized zone to the increasing zone sensed by a waveform shaper 18 will give a proper timing for replacement of the tool, when separation of grains etc. should have occurred.
COPYRIGHT: (C)1981,JPO&Japio
JP10439579A 1979-08-16 1979-08-16 Tool monitoring device Pending JPS5627776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10439579A JPS5627776A (en) 1979-08-16 1979-08-16 Tool monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10439579A JPS5627776A (en) 1979-08-16 1979-08-16 Tool monitoring device

Publications (1)

Publication Number Publication Date
JPS5627776A true JPS5627776A (en) 1981-03-18

Family

ID=14379539

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10439579A Pending JPS5627776A (en) 1979-08-16 1979-08-16 Tool monitoring device

Country Status (1)

Country Link
JP (1) JPS5627776A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930647A (en) * 1982-08-10 1984-02-18 エクスツル−ド・ホ−ン・コ−ポレ−シヨン Apparatus for detecting life of tool
JP2017200720A (en) * 2016-04-28 2017-11-09 株式会社ジェイテクト Grinder system
JP2020131323A (en) * 2019-02-15 2020-08-31 株式会社東京精密 Non-contact detection device and detection method for clogged grinding stone during processing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930647A (en) * 1982-08-10 1984-02-18 エクスツル−ド・ホ−ン・コ−ポレ−シヨン Apparatus for detecting life of tool
JP2017200720A (en) * 2016-04-28 2017-11-09 株式会社ジェイテクト Grinder system
JP2020131323A (en) * 2019-02-15 2020-08-31 株式会社東京精密 Non-contact detection device and detection method for clogged grinding stone during processing

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