CN103344745A - Device and method for automatically and spirally scanning inner wall of screw hole by eddy - Google Patents
Device and method for automatically and spirally scanning inner wall of screw hole by eddy Download PDFInfo
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- CN103344745A CN103344745A CN2013102929501A CN201310292950A CN103344745A CN 103344745 A CN103344745 A CN 103344745A CN 2013102929501 A CN2013102929501 A CN 2013102929501A CN 201310292950 A CN201310292950 A CN 201310292950A CN 103344745 A CN103344745 A CN 103344745A
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- eddy current
- feeler lever
- snap ring
- tested screw
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Abstract
The invention discloses a device and a method for automatically and spirally scanning the inner wall of a screw hole by eddy. A unique design method of a clamp ring is adopted, the rotation action of a probe rod is only remained in a rotatable detector, and the eddy probe rod is spirally moved frontwards and backwards by the clamp ring, so that the mechanical and circuit design difficulty can be greatly simplified, and the detecting cost can be reduced.
Description
Affiliated technical field
The present invention relates to a kind of the cannot-harm-detection device and method, particularly relate to a kind of eddy current automatic screw spiral inner wall scanning equipment and method.
Background technology
Detect for the screw defect in inner surface in the metal material, adopt artificial usually or rotation detecting detection screw defect in inner surface, manual detection efficiency is very low, and loss is very high; Present automatic rotation detecting, artificial mobile rotation detecting when being typically designed to the feeler lever rotation, or feeler lever rotation time linear telescopic moves, the automatic detection device detection efficiency is higher, but present this method for designing is very high to machinery and the circuit design requirement of rotation detecting, and its cost of manufacture is higher.In addition, artificial mobile rotation detecting when rotating for feeler lever, artificial movement can't guarantee that feeler lever moves forward and backward with constant speed, the effect that influence detects; For the method for designing of feeler lever rotation telescopic moving simultaneously, feeler lever is in long-term rotary extension moving process, and inner probe lead wire also is prone to wear and rupture.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of eddy current automatic screw spiral inner wall scanning equipment and method are provided, adopt unique snap ring method for designing, remove feeler lever linear telescopic shift action, only keep the spinning movement of eddy current feeler lever in the rotation detecting, the eddy current feeler lever carries out spiral by snap ring and advances or retreat.
The technical solution adopted for the present invention to solve the technical problems is: the automatic screw spiral inner wall of a kind of eddy current scanning equipment, device comprises eddy current feeler lever, snap ring, antislip ring, Rotation Controllers, described eddy current feeler lever and Rotation Controllers are connected and fixed, and the side face of eddy current feeler lever has external thread; The inside surface of described snap ring has internal thread, and snap ring is enclosed within outside the eddy current feeler lever external thread; Described antislip ring is adhesively fixed on the front end face of snap ring.The internal diameter of described snap ring equals the external diameter of eddy current feeler lever, and the external diameter of snap ring is greater than the diameter of tested screw.The automatic screw spiral inner wall of a kind of eddy current checking method is, snap ring in will installing earlier is threaded to the front end of eddy current feeler lever, the eddy current feeler lever is injected in the tested screw of metal material, the circumferential test surface of eddy current feeler lever front end just contacts fully with the inside surface on tested screw top, snap ring just is stuck in outside the tested screw, and the outer metal material surface of the antislip ring of snap ring front end face and tested screw is adjacent to; Then start Rotation Controllers, the eddy current feeler lever is with constant speed rotation, because the antislip ring of snap ring front end face and the frictional resistance between the metal material surface outside the tested screw, during the rotation of eddy current feeler lever, snap ring maintains static, the circumferential test surface of eddy current feeler lever front end moves to the bottom from tested screw top spiral, and tested screw inside surface is carried out the spiral scanning; Perhaps, snap ring in will installing earlier is threaded to the end of eddy current feeler lever, the eddy current feeler lever is injected in the tested screw of metal material, the circumferential test surface of eddy current feeler lever front end just contacts fully with the inside surface of tested screw bottom, snap ring just is stuck in outside the tested screw, and the outer metal material surface of the antislip ring of snap ring front end face and tested screw is adjacent to; Then start Rotation Controllers, the eddy current feeler lever is with constant speed rotation, because the antislip ring of snap ring front end face and the frictional resistance between the metal material surface outside the tested screw, during the rotation of eddy current feeler lever, snap ring maintains static, the circumferential test surface of eddy current feeler lever front end moves to the top from tested screw bottom spiral, and tested screw inside surface is carried out the spiral scanning.
The invention has the beneficial effects as follows, a kind of eddy current automatic screw spiral inner wall scanning equipment and method are provided, adopt unique snap ring method for designing, only keep the feeler lever spinning movement in the rotation detecting, whirligig and feeler lever carry out spiral by snap ring and advance or retreat, simplify machinery and circuit design difficulty greatly, reduced the detection cost.
Be described in further detail below in conjunction with the present invention of embodiment, but a kind of eddy current automatic screw spiral inner wall scanning equipment of the present invention and method are not limited to embodiment.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the schematic three dimensional views of the device of the embodiment of the invention.
Fig. 2 is snap ring in the device of the embodiment of the invention and the schematic three dimensional views of antislip ring.
Fig. 3 is the detection schematic three dimensional views of the embodiment of the invention.
Fig. 4 is the testing process synoptic diagram of the embodiment of the invention.
Among the figure, 1. eddy current feeler lever, 2. snap ring, 3. antislip ring, 4. Rotation Controllers, 5. tested metal material, 6. tested screw, 7. defective, 10. the external thread of eddy current feeler lever side face, the circumferential scanning face of 11. eddy current feeler lever front ends, the internal thread of 20. snap ring inside surfaces.
Embodiment
As the embodiment shown in Fig. 1, Fig. 2, Fig. 3, figure are, the automatic screw spiral inner wall of a kind of eddy current scanning equipment, device comprises eddy current feeler lever 1, snap ring 2, antislip ring 3, Rotation Controllers 4, and described eddy current feeler lever 1 is connected and fixed with Rotation Controllers 4, and the side face of eddy current feeler lever 1 has external thread 10; The inside surface of described snap ring 2 has internal thread 20, and snap ring 2 is enclosed within outside eddy current feeler lever 1 external thread 10; Described antislip ring 3 is adhesively fixed on the front end face of snap ring 2.The internal diameter of described snap ring 2 equals the external diameter of eddy current feeler lever 1, and the external diameter of snap ring 2 is greater than the diameter of tested screw 6.The automatic screw spiral inner wall of a kind of eddy current checking method is, snap ring 2 in will installing earlier is threaded to the front end of eddy current feeler lever 1, eddy current feeler lever 1 is injected in the tested screw 6 of metal material 5, the circumferential test surface 11 of eddy current feeler lever 1 front end just contacts fully with the inside surface on tested screw 6 tops, snap ring 2 just is stuck in outside the tested screw 6, and the antislip ring 3 of snap ring 2 front end faces and metal material 5 surfaces outside the tested screw 6 are adjacent to; Then start Rotation Controllers 4, eddy current feeler lever 1 is with constant speed rotation, because the frictional resistance between metal material 5 surfaces outside the antislip ring 3 of snap ring 2 front end faces and the tested screw 6, during 1 rotation of eddy current feeler lever, snap ring 2 maintains static, the circumferential test surface 11 of eddy current feeler lever 1 front end moves to the bottom from tested screw 6 top spirals, and tested screw 6 inside surfaces are carried out the spiral scanning; Perhaps, snap ring 2 in will installing earlier is threaded to the end of eddy current feeler lever 1, eddy current feeler lever 1 is injected in the tested screw 6 of metal material 5, the circumferential test surface 11 of eddy current feeler lever 1 front end just contacts fully with the inside surface of tested screw 6 bottoms, snap ring 2 just is stuck in outside the tested screw 6, and the antislip ring 3 of snap ring 2 front end faces and metal material 5 surfaces outside the tested screw 6 are adjacent to; Then start Rotation Controllers 4, eddy current feeler lever 1 is with constant speed rotation, because the frictional resistance between metal material 5 surfaces outside the antislip ring 3 of snap ring 2 front end faces and the tested screw 6, during 1 rotation of eddy current feeler lever, snap ring 2 maintains static, the circumferential test surface 11 of eddy current feeler lever 1 front end moves to the top from tested screw 6 bottom spirals, and tested screw 6 inside surfaces are carried out the spiral scanning.
Above-described embodiment only is used for further specifying a kind of eddy current automatic screw spiral inner wall scanning equipment of the present invention and method; but invention is not limited to embodiment; every foundation technical spirit of the present invention all falls in the protection domain of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does.
Claims (3)
1. the automatic screw spiral inner wall of eddy current scanning equipment, device comprises eddy current feeler lever, snap ring, antislip ring, Rotation Controllers, it is characterized in that:
Described eddy current feeler lever and Rotation Controllers are connected and fixed, and the side face of eddy current feeler lever has external thread; The inside surface of described snap ring has internal thread, and snap ring is enclosed within outside the eddy current feeler lever external thread; Described antislip ring is adhesively fixed on the front end face of snap ring.
2. the automatic screw spiral inner wall of a kind of eddy current according to claim 1 scanning equipment, it is characterized in that: the internal diameter of described snap ring equals the external diameter of eddy current feeler lever, and the external diameter of snap ring is greater than the diameter of tested screw.
3. the automatic screw spiral inner wall of eddy current checking method is characterized in that: described spiral checking method is,
Snap ring in will installing earlier is threaded to the front end of eddy current feeler lever, the eddy current feeler lever is injected in the tested screw of metal material, the circumferential test surface of eddy current feeler lever front end just contacts fully with the inside surface on tested screw top, snap ring just is stuck in outside the tested screw, and the outer metal material surface of the antislip ring of snap ring front end face and tested screw is adjacent to; Then start Rotation Controllers, the eddy current feeler lever is with constant speed rotation, because the antislip ring of snap ring front end face and the frictional resistance between the metal material surface outside the tested screw, during the rotation of eddy current feeler lever, snap ring maintains static, the circumferential test surface of eddy current feeler lever front end moves to the bottom from tested screw top spiral, and tested screw inside surface is carried out the spiral scanning;
Perhaps,
Snap ring in will installing earlier is threaded to the end of eddy current feeler lever, the eddy current feeler lever is injected in the tested screw of metal material, the circumferential test surface of eddy current feeler lever front end just contacts fully with the inside surface of tested screw bottom, snap ring just is stuck in outside the tested screw, and the outer metal material surface of the antislip ring of snap ring front end face and tested screw is adjacent to; Then start Rotation Controllers, the eddy current feeler lever is with constant speed rotation, because the antislip ring of snap ring front end face and the frictional resistance between the metal material surface outside the tested screw, during the rotation of eddy current feeler lever, snap ring maintains static, the circumferential test surface of eddy current feeler lever front end moves to the top from tested screw bottom spiral, and tested screw inside surface is carried out the spiral scanning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310292950.1A CN103344745B (en) | 2013-07-12 | 2013-07-12 | Device and method for automatically and spirally scanning inner wall of screw hole by eddy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310292950.1A CN103344745B (en) | 2013-07-12 | 2013-07-12 | Device and method for automatically and spirally scanning inner wall of screw hole by eddy |
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| CN103344745A true CN103344745A (en) | 2013-10-09 |
| CN103344745B CN103344745B (en) | 2015-07-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324086A (en) * | 2016-09-29 | 2017-01-11 | 爱德森（厦门）电子有限公司 | Double-layer coaxial screw hole detection device and double-layer coaxial screw hole detection method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4901578A (en) * | 1988-05-20 | 1990-02-20 | Westinghouse Electric Corp. | Probe carrier drive assembly |
| CN201210150Y (en) * | 2008-06-02 | 2009-03-18 | 林俊明 | Semi-automatic rotary probe apparatus |
| CN101893603A (en) * | 2010-08-06 | 2010-11-24 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Thread detection device and crack detection method for drilling tool |
| CN202189039U (en) * | 2011-07-27 | 2012-04-11 | 北京新联铁科技发展有限公司 | Connecting device ensuring concentric connection between feeding mechanism of flaw-detecting machine and hollow axle |
| CN202814919U (en) * | 2012-09-19 | 2013-03-20 | 国核电站运行服务技术有限公司 | Eddy current testing device for king bolts of reactor pressure vessels of nuclear power stations |
| CN103063741A (en) * | 2012-12-28 | 2013-04-24 | 瓦房店轴承集团有限责任公司 | Ultrasonic flaw detector for bearing outer rings |
| CN103105187A (en) * | 2011-11-11 | 2013-05-15 | 上海宝信软件股份有限公司 | Three-claw centering device |
| CN202947992U (en) * | 2012-11-12 | 2013-05-22 | 国核电站运行服务技术有限公司 | Eddy-current detecting device for mother nut of reactor pressure vessel of nuclear power station |
| CN203337646U (en) * | 2013-07-12 | 2013-12-11 | 爱德森（厦门）电子有限公司 | Automatic eddy screw hole inner wall spiral scanning device |
-
2013
- 2013-07-12 CN CN201310292950.1A patent/CN103344745B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4901578A (en) * | 1988-05-20 | 1990-02-20 | Westinghouse Electric Corp. | Probe carrier drive assembly |
| CN201210150Y (en) * | 2008-06-02 | 2009-03-18 | 林俊明 | Semi-automatic rotary probe apparatus |
| CN101893603A (en) * | 2010-08-06 | 2010-11-24 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Thread detection device and crack detection method for drilling tool |
| CN202189039U (en) * | 2011-07-27 | 2012-04-11 | 北京新联铁科技发展有限公司 | Connecting device ensuring concentric connection between feeding mechanism of flaw-detecting machine and hollow axle |
| CN103105187A (en) * | 2011-11-11 | 2013-05-15 | 上海宝信软件股份有限公司 | Three-claw centering device |
| CN202814919U (en) * | 2012-09-19 | 2013-03-20 | 国核电站运行服务技术有限公司 | Eddy current testing device for king bolts of reactor pressure vessels of nuclear power stations |
| CN202947992U (en) * | 2012-11-12 | 2013-05-22 | 国核电站运行服务技术有限公司 | Eddy-current detecting device for mother nut of reactor pressure vessel of nuclear power station |
| CN103063741A (en) * | 2012-12-28 | 2013-04-24 | 瓦房店轴承集团有限责任公司 | Ultrasonic flaw detector for bearing outer rings |
| CN203337646U (en) * | 2013-07-12 | 2013-12-11 | 爱德森（厦门）电子有限公司 | Automatic eddy screw hole inner wall spiral scanning device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324086A (en) * | 2016-09-29 | 2017-01-11 | 爱德森（厦门）电子有限公司 | Double-layer coaxial screw hole detection device and double-layer coaxial screw hole detection method |
| CN106324086B (en) * | 2016-09-29 | 2023-04-07 | 爱德森（厦门）电子有限公司 | Double-layer coaxial screw hole detection method |
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| CN103344745B (en) | 2015-07-15 |
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