JPS55142238A - Abnormality detector - Google Patents

Abnormality detector

Info

Publication number
JPS55142238A
JPS55142238A JP5051879A JP5051879A JPS55142238A JP S55142238 A JPS55142238 A JP S55142238A JP 5051879 A JP5051879 A JP 5051879A JP 5051879 A JP5051879 A JP 5051879A JP S55142238 A JPS55142238 A JP S55142238A
Authority
JP
Japan
Prior art keywords
reference value
detector
circuit
value
prescribed
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
JP5051879A
Other languages
Japanese (ja)
Inventor
Hiroshige Fukuhara
Shigenori Kawasaki
Kan Ishizuka
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.)
Rion Co Ltd
Original Assignee
Rion Co 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 Rion Co Ltd filed Critical Rion Co Ltd
Priority to JP5051879A priority Critical patent/JPS55142238A/en
Publication of JPS55142238A publication Critical patent/JPS55142238A/en
Pending 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

Abstract

PURPOSE:To enable precise abnormality detection or quality control, by comparing a calculated value such as an energy integrated value or mean value for every prescribed time in a normal state with that in measurement. CONSTITUTION:The output of a detector 1 installed in contact with an object to be detected of abnormality is amplified by an amplifier 2. Only prescribed frequency is passed through a filter 3 and applied to a calculation circuit 4, which performs calculation such as integration, differentiation, addition, subtraction, multiplication or division for every prescribed time in accordance with the state of the signal extracted from the detector. A comparison circuit 5 compares a calculated value from the circuit 4, with a prescribed reference value. When the calculated value exceeds the reference value, the comparison circuit supplies a signal to an alarm 7. Otherwise, a detector 1' is installed on a normal process portion in parallel with a detection zone A, a reference value setting unit 6 is coupled to an amplifier 2' and a filter 3' and data from the circuit 4 are compared with a reference value set by the unit 6.
JP5051879A 1979-04-24 1979-04-24 Abnormality detector Pending JPS55142238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5051879A JPS55142238A (en) 1979-04-24 1979-04-24 Abnormality detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5051879A JPS55142238A (en) 1979-04-24 1979-04-24 Abnormality detector

Publications (1)

Publication Number Publication Date
JPS55142238A true JPS55142238A (en) 1980-11-06

Family

ID=12861184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5051879A Pending JPS55142238A (en) 1979-04-24 1979-04-24 Abnormality detector

Country Status (1)

Country Link
JP (1) JPS55142238A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972045A (en) * 1982-09-03 1984-04-23 ザ・ヴアレロン・コ−ポレ−シヨン Detector for abrasion tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS534593A (en) * 1976-07-02 1978-01-17 Toyo Bearing Mfg Co Method of detecting service life of dresser

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS534593A (en) * 1976-07-02 1978-01-17 Toyo Bearing Mfg Co Method of detecting service life of dresser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972045A (en) * 1982-09-03 1984-04-23 ザ・ヴアレロン・コ−ポレ−シヨン Detector for abrasion tool
JPH0257262B2 (en) * 1982-09-03 1990-12-04 Valeron Corp

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