JPS56119359A - Discriminator of damage of tool - Google Patents

Discriminator of damage of tool

Info

Publication number
JPS56119359A
JPS56119359A JP2290880A JP2290880A JPS56119359A JP S56119359 A JPS56119359 A JP S56119359A JP 2290880 A JP2290880 A JP 2290880A JP 2290880 A JP2290880 A JP 2290880A JP S56119359 A JPS56119359 A JP S56119359A
Authority
JP
Japan
Prior art keywords
output
output signal
discriminator
damage
signal
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
JP2290880A
Other languages
Japanese (ja)
Other versions
JPS641266B2 (en
Inventor
Takuro Yamada
Akihiko Fujiwara
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 JP2290880A priority Critical patent/JPS56119359A/en
Publication of JPS56119359A publication Critical patent/JPS56119359A/en
Publication of JPS641266B2 publication Critical patent/JPS641266B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
    • B23Q17/0904—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool before or after machining
    • B23Q17/0919—Arrangements for measuring or adjusting cutting-tool geometry in presetting devices
    • B23Q17/0947—Monitoring devices for measuring cutting angles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Sensing Apparatuses (AREA)

Abstract

PURPOSE:To detect thermal cracks and injuries of a tool share point distinguishing from a difference of a time constant and a difference of a frequency component of an acoustic emission made by a cutting work. CONSTITUTION:After signals detected by an acoustic emission sensor 1 having been amplified by an amplifier 2, for the signal on one side, an output signal X4 is obtained through a high pass filter 14 and an envelope detector 15 and for the other, an output signal X15 is obtained through a low pass filter 14 and the envelope detector 15. Then, if the output signals X4, X15 are larger than a set point of threshold setter 8, both the output signals X9, X14 of amplitude discriminators 9, 16 are set so as to be at high levels and a damage discriminator 17 judges that the injuries arise when the output signals X9, X16 are both at the high level, that the thermal cracks are produced when the output signal S9 is at the high and the output X16 is at the low level and an alarm signal generator 13 ends a warning when the output signal of the damage discriminator 17 exceeds the predetermined frequencies.
JP2290880A 1980-02-26 1980-02-26 Discriminator of damage of tool Granted JPS56119359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2290880A JPS56119359A (en) 1980-02-26 1980-02-26 Discriminator of damage of tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2290880A JPS56119359A (en) 1980-02-26 1980-02-26 Discriminator of damage of tool

Publications (2)

Publication Number Publication Date
JPS56119359A true JPS56119359A (en) 1981-09-18
JPS641266B2 JPS641266B2 (en) 1989-01-11

Family

ID=12095732

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2290880A Granted JPS56119359A (en) 1980-02-26 1980-02-26 Discriminator of damage of tool

Country Status (1)

Country Link
JP (1) JPS56119359A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5130817A (en) * 1989-03-30 1992-07-14 Sharp Kabushiki Kaisha Electronic apparatus
CN109030565A (en) * 2018-06-28 2018-12-18 盐城工学院 A kind of inspection well cover damage detection device and method
CN111390648A (en) * 2020-03-31 2020-07-10 江麓机电集团有限公司 Turning tool abrasion judging method based on antagonistic neural network

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5130817A (en) * 1989-03-30 1992-07-14 Sharp Kabushiki Kaisha Electronic apparatus
CN109030565A (en) * 2018-06-28 2018-12-18 盐城工学院 A kind of inspection well cover damage detection device and method
CN111390648A (en) * 2020-03-31 2020-07-10 江麓机电集团有限公司 Turning tool abrasion judging method based on antagonistic neural network
CN111390648B (en) * 2020-03-31 2021-12-28 江麓机电集团有限公司 Turning tool abrasion judging method based on antagonistic neural network

Also Published As

Publication number Publication date
JPS641266B2 (en) 1989-01-11

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