JPS5677020A - Method and apparatus for correcting elliptical distortion of tubular body - Google Patents
Method and apparatus for correcting elliptical distortion of tubular bodyInfo
- Publication number
- JPS5677020A JPS5677020A JP15322179A JP15322179A JPS5677020A JP S5677020 A JPS5677020 A JP S5677020A JP 15322179 A JP15322179 A JP 15322179A JP 15322179 A JP15322179 A JP 15322179A JP S5677020 A JPS5677020 A JP S5677020A
- Authority
- JP
- Japan
- Prior art keywords
- correcting
- tubular body
- elliptical
- elliptical distortion
- detected
- 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
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
PURPOSE: To efficiently correct the elliptical distortion of the tubular body, by detecting the elliptical distortion in the inner circumference of the bell-mouth of the tubular body to be corrected, being laid on the support stand, and by pressing the correcting ram while turning the correcting head in a turning angle corresponding to the detected elliptical distortion.
CONSTITUTION: The tubular body M is laid on the support stand 1, and the correcting arm 6 is moved by the cylinder unit 21 so as to insert the correcting head 7 into the bell-mouth (m) of the tubular body M. If the correcting head 7 is 180° turned, the probe 42 moves along the inner circumference D3 of the bell-mouth (m), and the elliptical distortion is detected by the turning angle gauge; at the same time, the position of the elliptical minor axis is detected by the meter relay from the variation of the angular position of the probe 42. These detected data are memorized by a suitable controller, by whose command the correcting head 7 is turned in a turning angle for bringing the correcting ram 8 into a position corresponding to the position of the elliptical minor axis; then, the correcting ram 8 presses the tubular body M and corrects the elliptical distortion.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15322179A JPS5677020A (en) | 1979-11-26 | 1979-11-26 | Method and apparatus for correcting elliptical distortion of tubular body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15322179A JPS5677020A (en) | 1979-11-26 | 1979-11-26 | Method and apparatus for correcting elliptical distortion of tubular body |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5677020A true JPS5677020A (en) | 1981-06-25 |
Family
ID=15557692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15322179A Pending JPS5677020A (en) | 1979-11-26 | 1979-11-26 | Method and apparatus for correcting elliptical distortion of tubular body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5677020A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05146826A (en) * | 1991-11-27 | 1993-06-15 | Kubota Corp | Device for correcting roundness of pipe end part of steel pipe sheet pile |
US7027709B2 (en) | 2000-05-10 | 2006-04-11 | Funai Electric Co., Ltd. | Method for forming magnetic gap of video signal erasure head, erasure head, and video recorder having the same |
JP2017080798A (en) * | 2015-10-30 | 2017-05-18 | 株式会社横山基礎工事 | Steel pipe correction method, steel pipe joining method, and shape holding tool |
CN112044986A (en) * | 2020-07-28 | 2020-12-08 | 中广核核电运营有限公司 | Maintenance tool |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5133878U (en) * | 1974-09-04 | 1976-03-12 |
-
1979
- 1979-11-26 JP JP15322179A patent/JPS5677020A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5133878U (en) * | 1974-09-04 | 1976-03-12 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05146826A (en) * | 1991-11-27 | 1993-06-15 | Kubota Corp | Device for correcting roundness of pipe end part of steel pipe sheet pile |
US7027709B2 (en) | 2000-05-10 | 2006-04-11 | Funai Electric Co., Ltd. | Method for forming magnetic gap of video signal erasure head, erasure head, and video recorder having the same |
JP2017080798A (en) * | 2015-10-30 | 2017-05-18 | 株式会社横山基礎工事 | Steel pipe correction method, steel pipe joining method, and shape holding tool |
CN112044986A (en) * | 2020-07-28 | 2020-12-08 | 中广核核电运营有限公司 | Maintenance tool |
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