JPS5720625A - Detection of tool chipping - Google Patents

Detection of tool chipping

Info

Publication number
JPS5720625A
JPS5720625A JP9558080A JP9558080A JPS5720625A JP S5720625 A JPS5720625 A JP S5720625A JP 9558080 A JP9558080 A JP 9558080A JP 9558080 A JP9558080 A JP 9558080A JP S5720625 A JPS5720625 A JP S5720625A
Authority
JP
Japan
Prior art keywords
circuit
chipping
output
vibration
frequency spectra
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
JP9558080A
Other languages
Japanese (ja)
Other versions
JPS6121787B2 (en
Inventor
Hajime Inaba
Yukio Ono
Mitsuo Hiraizumi
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP9558080A priority Critical patent/JPS5720625A/en
Publication of JPS5720625A publication Critical patent/JPS5720625A/en
Publication of JPS6121787B2 publication Critical patent/JPS6121787B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To improve the sureness in the detection of chipping without being restricted by conditions of cutting tools and work pieces by detecting tool chipping from the shapes of the frequency spectra of the vibration of a tool rest. CONSTITUTION:The output of an acceleration pickup 12 is amplified by a charge amplifier 13, and is applied to an AD converter 18 via a 1/3 octave band pass filter, a logarithmic compressor 15, a rectifier circuit 16 and a smoothing circuit 17. The output of the AD converter 18 and the signal from an interface part 19 are applied to the input of a comparator 21, by which the steady cutting state by full band vibration levels is judged. When the state is judged to be a steady cutting state, the output is fed to a vibration frequency spectrum calculating circuit 22. In the circuit 22, vibration frequency spectra are determined and are outputted to a buffer circuit 23, by which frequency spectra are accumulated. In the comparator 24 connected to a buffer circuit 23, a reference data memory device 27 and a set value table memory device 28, the presence or absence of chipping by the comparison with the reference data is decided.
JP9558080A 1980-07-15 1980-07-15 Detection of tool chipping Granted JPS5720625A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9558080A JPS5720625A (en) 1980-07-15 1980-07-15 Detection of tool chipping

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9558080A JPS5720625A (en) 1980-07-15 1980-07-15 Detection of tool chipping

Publications (2)

Publication Number Publication Date
JPS5720625A true JPS5720625A (en) 1982-02-03
JPS6121787B2 JPS6121787B2 (en) 1986-05-28

Family

ID=14141525

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9558080A Granted JPS5720625A (en) 1980-07-15 1980-07-15 Detection of tool chipping

Country Status (1)

Country Link
JP (1) JPS5720625A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5963528A (en) * 1982-10-01 1984-04-11 Ishikawajima Harima Heavy Ind Co Ltd Diagnosing method of rotary machine
JPS5963529A (en) * 1982-10-01 1984-04-11 Ishikawajima Harima Heavy Ind Co Ltd Diagnosing method of rotary machine
JPS59175942A (en) * 1983-03-23 1984-10-05 Agency Of Ind Science & Technol Rms processing unit in cutting edge damage detecting device for intermittent cutting machine
JPH1183618A (en) * 1997-09-04 1999-03-26 Toshiba Corp Acoustic monitoring device
JP2016135511A (en) * 2015-01-23 2016-07-28 三菱電機株式会社 Irregular machining detecting apparatus and irregular machining detecting method
WO2019044729A1 (en) * 2017-08-31 2019-03-07 Ntn株式会社 State-monitoring method and state-monitoring device
JP2019045484A (en) * 2017-08-31 2019-03-22 Ntn株式会社 State monitoring method, and state monitoring device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5963528A (en) * 1982-10-01 1984-04-11 Ishikawajima Harima Heavy Ind Co Ltd Diagnosing method of rotary machine
JPS5963529A (en) * 1982-10-01 1984-04-11 Ishikawajima Harima Heavy Ind Co Ltd Diagnosing method of rotary machine
JPS59175942A (en) * 1983-03-23 1984-10-05 Agency Of Ind Science & Technol Rms processing unit in cutting edge damage detecting device for intermittent cutting machine
JPS6317581B2 (en) * 1983-03-23 1988-04-14 Kogyo Gijutsuin
JPH1183618A (en) * 1997-09-04 1999-03-26 Toshiba Corp Acoustic monitoring device
JP2016135511A (en) * 2015-01-23 2016-07-28 三菱電機株式会社 Irregular machining detecting apparatus and irregular machining detecting method
WO2019044729A1 (en) * 2017-08-31 2019-03-07 Ntn株式会社 State-monitoring method and state-monitoring device
JP2019045484A (en) * 2017-08-31 2019-03-22 Ntn株式会社 State monitoring method, and state monitoring device

Also Published As

Publication number Publication date
JPS6121787B2 (en) 1986-05-28

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