MX340629B - Concentricity deermination device and cencentricity determination method. - Google Patents
Concentricity deermination device and cencentricity determination method.Info
- Publication number
- MX340629B MX340629B MX2013011228A MX2013011228A MX340629B MX 340629 B MX340629 B MX 340629B MX 2013011228 A MX2013011228 A MX 2013011228A MX 2013011228 A MX2013011228 A MX 2013011228A MX 340629 B MX340629 B MX 340629B
- Authority
- MX
- Mexico
- Prior art keywords
- concentricity
- shaft component
- wall thickness
- determination method
- thickness measuring
- Prior art date
Links
Landscapes
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
In the conventional determination method for determining the concentricity, the determination accuracy has not been sufficient due to the configurations in which the concentricity is calculated based on the wall thickness at two positions. [Solution] In order to determine the concentricity of a hollow portion H of a shaft component S with a hollow shape, while rotatably supporting the shaft component S about the axis, a plurality of ultrasonic thickness measuring devices 2 are used, which are disposed along the axial direction of the shaft component S. With the shaft component 2 being rotated, each ultrasonic thickness measuring device 2 measures wall thickness at predetermined intervals in the circumferential direction. With respect to the measurement data obtained by each of the ultrasonic thickness measuring devices 2, the pass/fail determination is performed of the concentricity by comparing the difference in wall thickness at two positions different by 180 degrees with a threshold value to thereby achieve a further improvement in determination accuracy in concentricity.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012216250A JP6168464B2 (en) | 2012-09-28 | 2012-09-28 | Coaxiality determination method and coaxiality determination device |
Publications (2)
Publication Number | Publication Date |
---|---|
MX2013011228A MX2013011228A (en) | 2014-03-27 |
MX340629B true MX340629B (en) | 2016-07-19 |
Family
ID=50746310
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2013011228A MX340629B (en) | 2012-09-28 | 2013-09-27 | Concentricity deermination device and cencentricity determination method. |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP6168464B2 (en) |
MX (1) | MX340629B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107748366B (en) * | 2017-11-06 | 2018-11-06 | 南京恒天领锐汽车有限公司 | Motor in electric automobile and rear axle concentricity testing device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6118806A (en) * | 1984-07-05 | 1986-01-27 | Dainichi Nippon Cables Ltd | Uneven wall thickness measuring device |
JPH07198306A (en) * | 1993-12-28 | 1995-08-01 | Kobe Steel Ltd | Method for measuring deviation of metal pipe thickness |
JPH08122041A (en) * | 1994-10-26 | 1996-05-17 | Mitsubishi Electric Corp | Position detection apparatus of mobile machine |
JP2000275035A (en) * | 1999-03-23 | 2000-10-06 | Kawasaki Steel Corp | Apparatus for measuring thickness of tube |
JP5198112B2 (en) * | 2008-03-26 | 2013-05-15 | 旭化成ケミカルズ株式会社 | Piping inspection device and inspection method thereof |
-
2012
- 2012-09-28 JP JP2012216250A patent/JP6168464B2/en active Active
-
2013
- 2013-09-27 MX MX2013011228A patent/MX340629B/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
MX2013011228A (en) | 2014-03-27 |
JP6168464B2 (en) | 2017-07-26 |
JP2014070963A (en) | 2014-04-21 |
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