CN202854096U - Eddy current test probe for testing flaws of rivet - Google Patents
Eddy current test probe for testing flaws of rivet Download PDFInfo
- Publication number
- CN202854096U CN202854096U CN201220510485.5U CN201220510485U CN202854096U CN 202854096 U CN202854096 U CN 202854096U CN 201220510485 U CN201220510485 U CN 201220510485U CN 202854096 U CN202854096 U CN 202854096U
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- eddy current
- rivet
- probe
- coil
- current test
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- Expired - Fee Related
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model relates to an eddy current test probe for testing the flaws of a rivet, belongs to the field of non-destructive testing technology, and in particular relates to eddy current test for testing the outer diameter surface flaws of rivet parts. The utility model provides a multichannel eddy current test probe for testing the flaws of the rivet, which is capable of guaranteeing a probe test coil to be well matched with the surface of a part to be tested, guaranteeing the eddy current test quality, enlarging the effective range of eddy current scanning and increasing the eddy current test efficiency. The eddy current test probe for testing the flaws of the rivet is characterized by comprising a probe, a fixed shell, a plurality of groups of work coils and a connecting line, wherein one end of the fixed shell is connected with the probe, and the end surface of the other end of the fixed shell is provided with the work coils which are connected with the connecting line; each work coil consists of an exciting coil and a detecting coil; and the work coils adopt a differential connection way.
Description
Technical field
The utility model belongs to technical field of nondestructive testing, particularly relates to a kind of EDDY CURRENT of rivet class part external diameter surface crackle.
Background technology
Rivet comprises head and bar section, is used for riveted structure, usually in the riveted joint process, produces axial crack because rivet force is spent conference at the rivet head external diameter surface.The detection mode of this surface crack adopts the fluorescent penetrant detection mode at present, owing to being subjected to the restriction of component structural, the mode processing step that fluorescent penetrant detects is more, and sense cycle is long, and some parts is not suitable for fluorescent penetrant and detects, detect the eddy current coverage rate with common eddy current probe little, often need rotating 360 degrees to carry out scanning for the rivet surface crack testing, the poor stability of scanning, the factor that sensitivity is disturbed impact is many, labour intensity is large, and detection efficiency is low, and operating difficulties.
The utility model content
Problem for the prior art existence, the utility model provides a kind of eddy current probe of multichannel detection rivet crackle, and can guarantee to pop one's head in magnetic test coil and seized part surface are good fit, guarantees the EDDY CURRENT quality, improve eddy current scanning effective range, improve EDDY CURRENT efficient.
To achieve these goals, the utility model adopts following technical scheme, a kind of eddy current probe that detects the rivet crackle, be characterized in comprising probe, stationary housing, some groups of working coils and connecting line, described stationary housing one end is connected with probe, is provided with working coil on the end face of the other end; Described working coil is connected with connecting line, and working coil is comprised of drive coil and magnetic test coil, and working coil adopts differential connecting mode.
The group number of described working coil is that port number is 2,4,6,8,10 or 12.
Described some groups of working coils are evenly distributed on the end face of stationary housing.
Described some groups of working coils adopt separate connection.
Be provided with dead slot on the end face of described stationary housing, every group of working coil is arranged on the end face of stationary housing by dead slot.
The beneficial effects of the utility model:
Adopt a kind of eddy current probe that detects the rivet crackle of the present utility model, can avoid interference signal and show, improved detection sensitivity and accuracy of detection, improve detection efficiency, easy to operate, reduce labour intensity.
Description of drawings
Fig. 1 is a kind of structural representation that detects the eddy current probe of rivet crackle of the present utility model;
Fig. 2 is the right view of Fig. 1;
Fig. 3 detects the structural representation of rivet for using the utility model;
Among the figure, 1-probe, 2-stationary housing, 3-working coil, 4-connecting line, 5-stationary housing end face, 6-rivet external diameter, the 7-the first riveting parts, the 8-the second riveting parts, 9-rivet, 10-crackle, 11-dead slot, 12-reticulate pattern.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1 and Figure 2, a kind of eddy current probe that detects the rivet crackle comprises probe 1, stationary housing 2, some groups of working coils 3 and connecting line 4, and stationary housing 2 one ends 1 are connected with popping one's head in, and are provided with working coil 3 on the end face 5 of the other end; Working coil 3 is connected with connecting line 4, working coil 3 is comprised of drive coil and magnetic test coil, adopt differential connecting mode, differential winding is conducive to find the defective of pettiness, can suppress detected member because material, the unequal interference that causes of shape shows, the group number of working coil 3 is that port number is according to rivet external diameter 6 size Selection of detected member rivet 9, the group number is that port number is 2,4,6,8,10 or 12, working coil 3 is evenly distributed on the end face 5 of stationary housing 2, end face 5 at stationary housing 2 is provided with dead slot 11, each working coil is arranged in the end face 5 corresponding dead slots 11 of stationary housing 2, and each working coil 3 adopts separate connection; Stationary housing 2 can be determined by rivet external diameter 6 sizes of detected member rivet 9, can guarantee the rivet external diameter 6 surperficial good coupling of each working coil 3 and detected member rivet 9, realization detects in same sensitivity, avoided lifting from signal, make testing result more accurately and reliably, stationary housing 2 materials are rigid plastic, are handled easily, are provided with reticulate pattern 12 at stationary housing 2 outside surfaces.
The one-time detection process
Figure 3 shows that the structural representation of using eddy current probe of the present utility model, at first according to the group number of the rivet external diameter 6 size Selection working coils 3 of detected member rivet 9, every group of working coil 3 corresponding passages, optional port number has 2 passages, 4 passages, 8 passages and 12 passages etc., what this detection probe was selected is 4 passages, by structural arrangement working coil 3 as shown in Figure 2, make detection probe.
1) first eddy current probe of the present utility model is connected on the multichannel swirl defectoscope by connecting line 4;
2) successively the sensitivity of each working coil 3 is demarcated;
3) detect, on the rivet external diameter 6 that is placed on detected member rivet 9 that the stationary housing 2 of eddy current probe is stable, scanning is carried out on rivet external diameter 6 surfaces, steadily will pop one's head in and rotate 90 °, can detect the crack defect in 360 °, if find Flaw display, find the present port number of display at instrument, then contrast the channel position on the probe, can determine the position at crackle 10 places.
Claims (5)
1. eddy current probe that detects the rivet crackle is characterized in that comprising probe, stationary housing, some groups of working coils and connecting line, and described stationary housing one end is connected with probe, is provided with working coil on the end face of the other end; Described working coil is connected with connecting line, and working coil is comprised of drive coil and magnetic test coil, and working coil adopts differential connecting mode.
2. a kind of eddy current probe that detects the rivet crackle according to claim 1, the group number that it is characterized in that described working coil is that port number is 2,4,6,8,10 or 12.
3. a kind of eddy current probe that detects the rivet crackle according to claim 1 is characterized in that described some groups of working coils are evenly distributed on the end face of stationary housing.
4. a kind of eddy current probe that detects the rivet crackle according to claim 1 is characterized in that described some groups of working coils adopt separate connection.
5. a kind of eddy current probe that detects the rivet crackle according to claim 1 is characterized in that being provided with dead slot on the end face of described stationary housing, and every group of working coil is arranged on the end face of stationary housing by dead slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220510485.5U CN202854096U (en) | 2012-09-29 | 2012-09-29 | Eddy current test probe for testing flaws of rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220510485.5U CN202854096U (en) | 2012-09-29 | 2012-09-29 | Eddy current test probe for testing flaws of rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202854096U true CN202854096U (en) | 2013-04-03 |
Family
ID=47985280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220510485.5U Expired - Fee Related CN202854096U (en) | 2012-09-29 | 2012-09-29 | Eddy current test probe for testing flaws of rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202854096U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868989A (en) * | 2014-03-31 | 2014-06-18 | 爱德森（厦门）电子有限公司 | Device and method for evaluating degree of riveting of blind rivets for multilayer metal components |
| CN104807880A (en) * | 2015-04-13 | 2015-07-29 | 苏州大学 | Fastener detection device |
| CN105424794A (en) * | 2015-11-25 | 2016-03-23 | 沈阳黎明航空发动机(集团)有限责任公司 | Multi-channel eddy current testing method for special-structure rivet on cartridge receiver |
-
2012
- 2012-09-29 CN CN201220510485.5U patent/CN202854096U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868989A (en) * | 2014-03-31 | 2014-06-18 | 爱德森（厦门）电子有限公司 | Device and method for evaluating degree of riveting of blind rivets for multilayer metal components |
| CN103868989B (en) * | 2014-03-31 | 2016-08-31 | 爱德森（厦门）电子有限公司 | A kind of multiple layer metal component self-plugging rivet rivet clasp scale evaluation device and method |
| CN104807880A (en) * | 2015-04-13 | 2015-07-29 | 苏州大学 | Fastener detection device |
| CN105424794A (en) * | 2015-11-25 | 2016-03-23 | 沈阳黎明航空发动机(集团)有限责任公司 | Multi-channel eddy current testing method for special-structure rivet on cartridge receiver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20170929 |