JPS54134689A - Abnormality detecting method at press fitting in press fitting machine - Google Patents
Abnormality detecting method at press fitting in press fitting machineInfo
- Publication number
- JPS54134689A JPS54134689A JP4212678A JP4212678A JPS54134689A JP S54134689 A JPS54134689 A JP S54134689A JP 4212678 A JP4212678 A JP 4212678A JP 4212678 A JP4212678 A JP 4212678A JP S54134689 A JPS54134689 A JP S54134689A
- Authority
- JP
- Japan
- Prior art keywords
- press fitting
- acoustic signal
- press
- machine
- detector
- 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
- 230000005856 abnormality Effects 0.000 title abstract 2
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 abstract 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
PURPOSE: To distinctly judge the abnormal state in press fitting without being affected by indefinite criteria such as visual osbervation, hearing sounds, etc. and environments as usual by mounting an AE detector to the press fitting machine and directly detecting only the acoustic signal generated at the press fitting.
CONSTITUTION: After other member 3 is set to one member 2 which is temporally placed on the table 1c of a press fitting machine, the piston 1b which is operated by the hydraulic pressure of a cylinder 1a is lowered to press fit the other member 3 onto one member 2. An AE detector 4 is mounted by means of, e.g., adhesive agents or the like, to the portion which does not hinder the press fitting work, on the side face of the abovementioned piston 1b and only the acoustic signal generated with abnormaly is normally detected a the time of press fitting work. The acoustic signal having been detected is amplified with a preamplifier 5 and the signal is filtered with a filter 6. The filtered signal is further amplified with a main amplifier 7 and is then subjected to judgement of abnormality by a judgement circuit 8.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4212678A JPS54134689A (en) | 1978-04-12 | 1978-04-12 | Abnormality detecting method at press fitting in press fitting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4212678A JPS54134689A (en) | 1978-04-12 | 1978-04-12 | Abnormality detecting method at press fitting in press fitting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54134689A true JPS54134689A (en) | 1979-10-19 |
Family
ID=12627239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4212678A Pending JPS54134689A (en) | 1978-04-12 | 1978-04-12 | Abnormality detecting method at press fitting in press fitting machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54134689A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5788362A (en) * | 1980-11-20 | 1982-06-02 | Toyota Motor Corp | Device and method for detection of stress relief cracking |
| JPH061594U (en) * | 1992-06-08 | 1994-01-14 | マツ六株式会社 | Rim with hanging equipment |
| JP2007132844A (en) * | 2005-11-11 | 2007-05-31 | Toyota Motor Corp | Press monitoring system and AE evaluation method |
-
1978
- 1978-04-12 JP JP4212678A patent/JPS54134689A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5788362A (en) * | 1980-11-20 | 1982-06-02 | Toyota Motor Corp | Device and method for detection of stress relief cracking |
| JPH061594U (en) * | 1992-06-08 | 1994-01-14 | マツ六株式会社 | Rim with hanging equipment |
| JP2007132844A (en) * | 2005-11-11 | 2007-05-31 | Toyota Motor Corp | Press monitoring system and AE evaluation method |
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