CN201364323Y - Vortex nondestructive flaw detection device - Google Patents
Vortex nondestructive flaw detection device Download PDFInfo
- Publication number
- CN201364323Y CN201364323Y CNU2009203008103U CN200920300810U CN201364323Y CN 201364323 Y CN201364323 Y CN 201364323Y CN U2009203008103 U CNU2009203008103 U CN U2009203008103U CN 200920300810 U CN200920300810 U CN 200920300810U CN 201364323 Y CN201364323 Y CN 201364323Y
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Abstract
The utility model relates to a vortex nondestructive flaw detection device, which comprises a probe, a remote control signal box and a mainframe system; the mainframe system is connected with a detected workpiece machining lathe control system by a first serial cable and is connected with a measurement arm by a second serial cable. The vortex nondestructive flaw detection device is characterized in that two ends of the first serial cable and the second serial cable are provided with a photoelectric isolator pair respectively and an air conditioning device is added to the remote control signal box, thus effectively overcoming the defects that the normal operation of the existing vortex nondestructive flaw detection device is affected by electromagnetic interference, power surge and high temperature of the industrial field.
Description
Technical field
The utility model relates to eddy current nondestructive testing technique field, is specifically related to a kind of eddy current nondestructive examination pick-up unit.
Background technology
The eddy current nondestructive examination belongs to a branch in nondestructive testing technique field, is applicable to the crackle and the corrosion Non-Destructive Testing of various hardwares.In the grinding machine industry, eddy detection technology is the important component part of roll online measuring technique.In the steel industry, because roll is one of important consumption spare part of steel rolling, the inner hiding many disadvantages of the integrality of its structure and surface thereof and working lining all will have a strong impact on the operating rate of serviceable life, product quality and the milling train of roll.For guaranteeing the quality of Rolling Production, the control aspect of breaker roll surface quality is especially carried out On line inspection to the roll in using and is then seemed particularly important.
Existing eddy current nondestructive examination pick-up unit has the following disadvantages.One, be subject to the influence of ambient temperature.When being in hot environment, the remote control signal case of eddy current nondestructive examination pick-up unit can have influence on the stability of defectoscope, make measurement accuracy obviously descend, can have influence on the normal use of eddy current nondestructive examination pick-up unit when serious, also can cause occurring reporting by mistake and detecting inaccurate phenomenon, detect with reason and to be forbidden to cause roll roll breakage in the operation of rolling, to occur or lose flesh, badly influence normally carrying out of production.Two, be subject to the interference of electromagnetic pulse in the site environment.Because the operation of various electrical equipments all can be sent electromagnetic pulse in the site environment, can form interference in various degree to the operate as normal of eddy current nondestructive examination pick-up unit.
In addition, many reasons such as ground connection owing to the electric equipment electric power system, make the earth potential between its two equipment surpass the normal signal amplitude, caused vertical interference for the signal that receives, make the surge that has short circuit or big inductive load starting to cause in the same basic routing line, the transient impact of its surge electric wave then can cause communicating interrupt, and serial ports is damaged.
The utility model content
Technical problem to be solved in the utility model provides a kind of eddy current nondestructive examination pick-up unit, overcomes the shortcoming of electromagnetic interference (EMI) because of industry spot, power surge, the existing eddy current nondestructive examination pick-up unit operate as normal of temperatures involved.
For solving the problems of the technologies described above, the utility model provides a kind of eddy current nondestructive examination pick-up unit, comprise detecting head, remote control signal case, host computer system, described host computer system connects measured piece lathe for machining control system by first serial cable, be used for testing result is transferred to measured piece lathe for machining control system CNC, be convenient to measured piece lathe for machining control system CNC and process adjusting.Described host computer system connects described remote control signal case by concentric cable, described remote control signal case connects described detecting head by cable, the signal of described detecting head is sent to described host computer system after described remote control signal case A/D conversion and Filtering Processing, described host computer system is carried out data analysis and handled.Described detecting head is installed on the gage beam of described measured piece lathe for machining, and described host computer system connects described gage beam by second serial cable, by with described lathe control system CNC reciprocation, regulate the position of described the above detecting head of gage beam; A pair of first photoisolator inserts the two ends of described first serial cable respectively, realizes the opto-electronic conversion in the testing result transmission course, isolates the interference to the testing result transmission of industry spot electromagnetic pulse and surge.
As prioritization scheme, the utility model comprises that also a pair of second photoisolator inserts the two ends of described second serial cable respectively, realize the opto-electronic conversion in described host computer system and the described gage beam communications, isolate the interference of industry spot electromagnetic pulse and surge this communications.
As further prioritization scheme, the utility model also comprises aircondition, and described aircondition prevents the accuracy of measuring because of temperatures involved for described remote control signal case provides adjustment.
The utility model is at various electromagnetic pulses and surge situation, adopt photoisolator in the serial communication link, of the interference of the electromagnetic pulse of the surge of the excessive generation of transient voltage and other equipment be can avoid effectively, measuring reliability and accuracy rate improved serial data transmission.After increasing the automatic testing result preparation of eddy current rate greatly, just can cancel original breaker roll and carry out the conventional way of quantitative grinding, then can reasonably instruct more economically the need grinding roller is carried out grinding according to the survey data of defectoscope, reduced the roller consumption of roll greatly, prolonged the life cycle of roll, the benefit of its long-term accumulative total is considerable.In addition, by providing adjustment, further improved the utility model in high temperature area reliability of applying to the remote control signal case.
Description of drawings
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is further described in detail.
Fig. 1 is a structure principle chart of the present utility model.
Embodiment
As shown in Figure 1, first serial cable 6 by the RS232 pattern between host computer system 1 and the measured piece lathe for machining control system CNC2 is connected, and a pair of serial optical electric isolator 10 is connected on the two ends of first serial cable 6 respectively.Measured piece lathe for machining control system CNC2 is used for testing result is transferred to measured piece lathe for machining control system CNC2, is convenient to measured piece lathe for machining control system CNC and processes adjusting.Host computer system 1 connects remote control signal case 3 by concentric cable 8, and remote control signal case 3 is installed in the aircondition 12.Aircondition 12 adopts the special air conditioner cooling tank, has adopted electromagnetic shielding material in the air-conditioning cooling tank, has farthest avoided the interference of site environment to the remote signal case; The design of air-conditioning box capacity size is placed remote control signal case 3 so that enough spaces to be arranged, and the integrated circuit board in the remote control signal case is turned round in constant low temperature environment.By actual measurement, when summer, environment temperature was up to 50 ℃, the stability of whole defectoscope system, accuracy and the output of carrying out flaw detection result data were all uninfluenced after taking thermostatically controlled technological transformation.
Remote control signal case 3 connects detecting head 4 by cable, the signal of detecting head 4 is sent to host computer system 1 after remote control signal case A/D conversion and Filtering Processing, host computer system 1 is carried out the data analysis processing, and analysis result is fed back to measured piece lathe for machining control system CNC2.Detecting head 4 is installed on the gage beam 5 of measured piece lathe for machining, detecting head locating module 11 in the host computer system 1 connects gage beam 5 by second serial cable 7 of RS232 pattern, by with described lathe control system CNC2 reciprocation, regulate the position of detecting head 4 on the gage beam 5; Another inserts the two ends of second serial cable 7 respectively to second serial photoisolator 9, realizes the opto-electronic conversion in described host computer system and the described gage beam communications, isolates the interference to this communications of industry spot electromagnetic pulse and surge.
First, second serial ports photoisolator technical parameter is: JaRa 3107A, 3109 RS232 photoisolator 57.6Kbps3 lines are isolated, meet V.24 asynchronous protocol of EIA RS232 and CCITT, the continuous 2500V of isolation voltage, moment 7000V pulse, support that asynchronous speed reaches 57.6Kbps, isolate transmission TxD RxD RTS CTS DTR DSR DCD RI GND signal.
It is as follows to transform the accessible basic mechanical design feature index in back:
Detect crack depth (sensitivity): 〉=0.1mm;
Crackle recall rate: 〉=99.99%;
Zero defect false drop rate:＜3%;
Working method: flaw detection continuously, sorting automatically.
It should be noted last that, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (3)
1. eddy current nondestructive examination pick-up unit, comprise detecting head, remote control signal case, host computer system, described host computer system connects measured piece lathe for machining control system by first serial cable, connect described remote control signal case by concentric cable, described remote control signal case connects described detecting head by cable; Described detecting head is installed on the gage beam of described measured piece lathe for machining, and described host computer system connects described gage beam by second serial cable; It is characterized in that it comprises a pair of first photoisolator, described a pair of first photoisolator inserts the two ends of described first serial cable respectively.
2. eddy current nondestructive examination pick-up unit according to claim 1 is characterized in that, comprises that also a pair of second photoisolator inserts the two ends of described second serial cable respectively.
3. eddy current nondestructive examination pick-up unit according to claim 1 and 2 is characterized in that, also comprises aircondition, and described aircondition provides adjustment for described remote control signal case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009203008103U CN201364323Y (en) | 2009-02-24 | 2009-02-24 | Vortex nondestructive flaw detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009203008103U CN201364323Y (en) | 2009-02-24 | 2009-02-24 | Vortex nondestructive flaw detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201364323Y true CN201364323Y (en) | 2009-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009203008103U Expired - Fee Related CN201364323Y (en) | 2009-02-24 | 2009-02-24 | Vortex nondestructive flaw detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201364323Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812611B (en) * | 2014-02-11 | 2017-02-08 | 湖州师范学院 | Eddy current testing data transmission algorithm |
| CN111721833A (en) * | 2019-03-18 | 2020-09-29 | 上海纪岩电力科技有限公司 | High-voltage cable lead sealing eddy current detection system |
-
2009
- 2009-02-24 CN CNU2009203008103U patent/CN201364323Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812611B (en) * | 2014-02-11 | 2017-02-08 | 湖州师范学院 | Eddy current testing data transmission algorithm |
| CN111721833A (en) * | 2019-03-18 | 2020-09-29 | 上海纪岩电力科技有限公司 | High-voltage cable lead sealing eddy current detection system |
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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 |
Granted publication date: 20091216 Termination date: 20150224 |
|
| EXPY | Termination of patent right or utility model |