JPS5644907A - Anomaly monitor device - Google Patents

Anomaly monitor device

Info

Publication number
JPS5644907A
JPS5644907A JP11935579A JP11935579A JPS5644907A JP S5644907 A JPS5644907 A JP S5644907A JP 11935579 A JP11935579 A JP 11935579A JP 11935579 A JP11935579 A JP 11935579A JP S5644907 A JPS5644907 A JP S5644907A
Authority
JP
Japan
Prior art keywords
integral value
normal data
comparator
tool
integrator
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
JP11935579A
Other languages
Japanese (ja)
Inventor
Teizou Fujii
Keiichi Oizumi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11935579A priority Critical patent/JPS5644907A/en
Publication of JPS5644907A publication Critical patent/JPS5644907A/en
Pending legal-status Critical Current

Links

Landscapes

  • Machine Tool Sensing Apparatuses (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE:To make it possible to detect various kinds of abnormal mode with a single comparator, by integrating the detection signal, which is output from a detector, by an integrator and by comparing the integral value with the integral value of normal data. CONSTITUTION:Detector 1 consisting of piezoelectric elements and so on is fixed to the tool post or the cutting tool of a machine tool and detects accelerating vibration of machine vibration generated in these tools during the cutting process and inputs it to amplifier 2. Integrator 3 is connected to amplifier 2, and the detection signal is integrated, and the integral value is input to comparator 4. Meanwhile, information unit 5 is connected to comparator 4, and the integral value is compared with normal data; and if it exceeds normal data, anomaly occurrence is decided to input the anomaly signal to control unit 6. Control unit 6 stops the machine tool, issues alarm, and so on.
JP11935579A 1979-09-19 1979-09-19 Anomaly monitor device Pending JPS5644907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11935579A JPS5644907A (en) 1979-09-19 1979-09-19 Anomaly monitor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11935579A JPS5644907A (en) 1979-09-19 1979-09-19 Anomaly monitor device

Publications (1)

Publication Number Publication Date
JPS5644907A true JPS5644907A (en) 1981-04-24

Family

ID=14759430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11935579A Pending JPS5644907A (en) 1979-09-19 1979-09-19 Anomaly monitor device

Country Status (1)

Country Link
JP (1) JPS5644907A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59175945A (en) * 1983-03-24 1984-10-05 Komatsu Ltd Abnormality detecting device for multiple cutting edge tool
JPH0985587A (en) * 1995-09-28 1997-03-31 Mitsubishi Materials Corp Detecting device and method for cutting state of rotational cutting tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331075A (en) * 1976-09-03 1978-03-23 Hitachi Ltd Status supervisory methods

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331075A (en) * 1976-09-03 1978-03-23 Hitachi Ltd Status supervisory methods

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59175945A (en) * 1983-03-24 1984-10-05 Komatsu Ltd Abnormality detecting device for multiple cutting edge tool
JPH0985587A (en) * 1995-09-28 1997-03-31 Mitsubishi Materials Corp Detecting device and method for cutting state of rotational cutting tool

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