JPS6475933A - Method for detecting abnormality of machine - Google Patents
Method for detecting abnormality of machineInfo
- Publication number
- JPS6475933A JPS6475933A JP23409887A JP23409887A JPS6475933A JP S6475933 A JPS6475933 A JP S6475933A JP 23409887 A JP23409887 A JP 23409887A JP 23409887 A JP23409887 A JP 23409887A JP S6475933 A JPS6475933 A JP S6475933A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- piezoelectric element
- machine
- generating source
- vibration waveform
- 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
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
PURPOSE:To automatically detect an abnormal state, by mounting a piezoelectric element for converting the vibration from a vibration generating source to an electric signal and comparing the vibration waveform in the normal state from the vibration generating source with that from the piezoelectric element. CONSTITUTION:For example, a piezoelectric element 1 is embedded in a vibration generating source such as the motor, gear, cutting tool or vane pump of a lathe and connected to a control apparatus 11. A control operation part 11a, a memory part 11b having a vibration waveform in a normal state stored therein and an alarm generating member 14 are mounted on the control apparatus 11. The vibration waveform from the element 1 and that sent out from the memory part 11b are compared and operated by the operation part 11a and, when both waveforms are different, a stop signal is sent to a machine driving part 19 and an alarm is generated from the member 14. Therefore, the abnormality of the machine can be automatically detected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23409887A JPS6475933A (en) | 1987-09-18 | 1987-09-18 | Method for detecting abnormality of machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23409887A JPS6475933A (en) | 1987-09-18 | 1987-09-18 | Method for detecting abnormality of machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6475933A true JPS6475933A (en) | 1989-03-22 |
Family
ID=16965591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23409887A Pending JPS6475933A (en) | 1987-09-18 | 1987-09-18 | Method for detecting abnormality of machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6475933A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05281101A (en) * | 1992-03-31 | 1993-10-29 | Agency Of Ind Science & Technol | Method and apparatus for extracting ae signals on rotary body |
US7340985B2 (en) * | 1998-10-22 | 2008-03-11 | Staffansboda Compagnie Ab | Method and device for vibration control |
-
1987
- 1987-09-18 JP JP23409887A patent/JPS6475933A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05281101A (en) * | 1992-03-31 | 1993-10-29 | Agency Of Ind Science & Technol | Method and apparatus for extracting ae signals on rotary body |
US7340985B2 (en) * | 1998-10-22 | 2008-03-11 | Staffansboda Compagnie Ab | Method and device for vibration control |
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