CN203616080U - Metal tube seepage automatic detection system - Google Patents
Metal tube seepage automatic detection system Download PDFInfo
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- CN203616080U CN203616080U CN201320572499.4U CN201320572499U CN203616080U CN 203616080 U CN203616080 U CN 203616080U CN 201320572499 U CN201320572499 U CN 201320572499U CN 203616080 U CN203616080 U CN 203616080U
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- metal tube
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- carrying roller
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Abstract
The utility model discloses a metal tube seepage automatic detection system and a detection method, and relates to the technical field of metal tube detection apparatus. The system comprises a PLC controller, an industrial control computer, a position sensor, a caliber identification system, a frequency converter, a carrying roller motor, a position detection encoder, a CCD camera and a carrying roller. The industrial control computer and the PLC controller are bi-directionally connected; the caliber identification system, the position sensor and the position detection encoder are electrically connected with an input end of the PLC controller; the carrying roller motor is electrically connected to an output end of the PLC controller through the frequency converter; the CCD camera is electrically connected with the industrial control computer; and the carrying roller motor drives a metal tube to be checked rotate through the carrying roller mechanism. The system energy realize mixed pipe seepage detection, raise work efficiency and reduce rejection rate.
Description
Technical field
The utility model relates to metal tube detection technique field, relates in particular to the automatic checkout system of a kind of metal tube seepage (industrial be commonly called as sweating).
Background technology
In the prior art, the leak detection of metal tube hydraulic pressure is judged as manual operation, at leak detection station, two post works are set and carry out artificial visually examine's judgement, main basis for estimation is that whether fast-descending and pipe shaft have obvious washmarking to manual observation hydrostatic testing machine pressure, for detecting the serious pipe of pipe shaft seepage, post personnel easily find and make identification judgement, but during for hydraulic pressure leak detection, pipe shaft only has the metal tube of seepage a little, due to light, the reasons such as visual angle, post workman is not easy to observe, or omit and detect some position, will exist so indivedual metal tubes not to be judged to useless and to enter into the problem of next process at this station, thereby affect the quality of metal tube.
CCD(Charge Coupled Device) industrial camera compares civil camera, there is higher picture steadiness, high-transmission ability and high anti-jamming capacity, can carry out the Real-time Collection of view data, combining image is processed and recognition technology, CCD industrial camera is widely used in industry spot and carries out Real-Time Monitoring and control, can greatly enhance productivity and save human cost.
As Japanese documentation JP3156764U discloses the technical scheme that CCD industrial camera is applied to metal tube leak detection, wherein, the direction of transfer of metal tube is for to carry out along the axial directions X of metal tube, and on the face perpendicular to tubular axis along metal tube be circumferentially evenly arranged four CCD camera image collection points so that the capture angle on pipe shaft the whole body can be covered comprehensively.This detection scheme has been realized robotization detection, but also there are some following technological deficiencies: the one, can not automatically adapt to the leak detection requirement of multiple different tube diameters, in the time that caliber is larger, due to only uniform motion vertically of metal tube, four CCD cameras may be not enough to the whole body capture angle of comprehensive covering metal pipe, thereby be faced with the distance of adjusting between image-forming block and metal tube and can cover the problem of all surfaces of metal tube to guarantee multiple cameras, even also need to increase CCD camera, to guarantee capture covering metal tube-surface comprehensively; The 2nd, the casting work on the spot environment of metal tube is conventionally more severe, and production space is very limited, newly added equipment will affect the layout of existing production line, no matter be, four CCD camera image collection points are evenly set along the whole body of metal tube, still be increased to as mentioned above four above CCD camera image collection points, the problem that all exists production line to adjust; The 3rd, adopt multiple CCD camera costs higher, the control to equipment and to the workload of data processing also corresponding increasing.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of metal tube seepage automatic checkout system and method, described system can automatically detect and judge whether metal tube has breakthrough, sensing range can covering metal pipe pipe shaft all surfaces, guarantee the quality of metal tube, the labour intensity that has reduced workman, has improved work efficiency.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of metal tube seepage automatic checkout system, comprise electric control system, pipe shaft image acquisition part and caliber recognition system, described caliber recognition system is for detection of the caliber of metal tube, and caliber information is sent to described electric control system, described electric control system makes metal tube according to default speed rotation according to pipe diameter size, described image acquisition part gathers metal tube whole body image according to the default number of times of taking pictures according to pipe diameter size, judge that by image comparison treatment technology seepage appears in which position of pipe shaft simultaneously.
Further, described pipe seepage automatic checkout system comprises PLC controller, industrial computer, CCD camera, industrial computer and described two-way connection of PLC controller, CCD camera is electrically connected with industrial computer, also comprise position transducer, caliber recognition system, frequency converter, carrying roller motor, position probing scrambler and carrying roller, caliber recognition system, position transducer and position probing scrambler are electrically connected with PLC controller, carrying roller motor is electrically connected with described PLC controller by frequency converter, described carrying roller motor is fixedly connected with carrying roller, carrying roller drives metal tube to be detected to rotate, position probing scrambler is coaxial with carrying roller, in order to detect the anglec of rotation of metal tube, PLC controller is controlled frequency converter according to the anglec of rotation of the metal tube of the caliber of the metal tube of caliber recognition system identification and position coder detection.
Further, described PLC controller is electrically connected with described caliber recognition system, according to the metal tube anglec of rotation of the metal tube caliber of described caliber recognition system identification and the detection of described position probing scrambler, described frequency converter is controlled.
Further, the above CCD camera be positioned at metal tube to be detected directly over.
Further, described caliber recognition system is positioned at left side or the right side of described metal tube to be detected.
Further, described carrying roller is provided with two groups, the two ends of supporting respectively metal tube, and every group of carrying roller comprises two carrying rollers, and described position transducer is between two carrying rollers, and described position probing scrambler is fixed on described carrying roller.
In the time that metal tube to be detected enters into leak detection station, position transducer is input to PLC controller the pipe signal that has detecting; In the time detecting that leak detection station has had metal tube, PLC controller control caliber recognition system starts, and the caliber signal that caliber recognition system is detected is delivered to PLC controller; Identifying after caliber information, receiving that this signal rear drive CCD camera takes one group of metal tube the whole body picture to after the Program time delay regular hour in PLC controller signal of industrial computer, industrial computer; Taken after first group of photo to metal tube the whole body, PLC controller drives the rotation of carrying roller motor, and the metal tube of different tube diameters is at the uniform velocity rotated according to different speed, and speed regulates to control and realized by frequency converter.
In rotating 360 degrees process, the many groups of CCD camera shooting photos, the anglec of rotation detects by the position probing scrambler detection coaxial with carrying roller, and carrying roller is that point contacts with metal tube to be detected, the carrying roller that prevents rotation causes scratch to the periphery of metal tube, interference detection results.The photo that industrial computer is taken after using image processing software to the metal tube hydraulic testing is analyzed, according to image software, data are processed, if there is seepage in metal tube pipe shaft, on industrial computer display screen, automatically indicate leakage area and send alerting signal, record seepage information, as metal tube, not occur that seepage is just judged to be qualified.
Described system comprises electric control system and part of data acquisition, part of data acquisition comprises industrial computer, industrial computer is by the data of CCD collected by camera metal tube and carry out data processing by the software in industrial computer, electric control system adopts PLC controller and sensor to realize, described system can automatically detect and judge whether metal tube has breakthrough, improve the quality of metal tube, reduced workman's labour intensity, improved work efficiency.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the control structure schematic diagram of the utility model metal tube seepage automatic checkout system;
Fig. 2 is metal tube right view in the utility model metal tube seepage automatic checkout system;
Wherein: 1, PLC controller 2, industrial computer 3, position transducer 4, caliber recognition system 5, frequency converter 6, carrying roller motor 7, position probing scrambler 8, CCD camera 9, metal tube to be detected 10, carrier roller mechanism.
Embodiment
As shown in Figure 1, a kind of metal tube seepage automatic checkout system, comprises PLC controller 1, industrial computer 2, position transducer 3, caliber recognition system 4, frequency converter 5, carrying roller motor 6, position probing scrambler 7, CCD camera 8 and carrier roller mechanism 10.Described industrial computer 2 and described two-way connection of PLC controller 1, caliber recognition system 4, position transducer 3 and position probing scrambler 7 are electrically connected with PLC controller 1, carrying roller motor 6 is electrically connected with the output terminal of described PLC controller 1 by frequency converter 5, described CCD camera 8 is electrically connected with industrial computer 2, described carrying roller motor 6 is fixedly connected with carrier roller mechanism 10, and carrier roller mechanism 10 drives metal tube 9 to be detected to rotate.
Preferably, in order to take pictures conveniently, described CCD camera 8 be positioned at metal tube 9 to be detected directly over, be used for taking before metal tube test experience with experiment after pipe shaft image.Because the coverage of CCD camera on metal tube is axial is limited, therefore the number of CCD camera is installed and determines according to the length of metal tube, in pipe shaft drops on a CCD camera shooting sample range completely time, only start the work of a CCD camera.Described caliber recognition system 4 is positioned at left side or the right side of described metal tube to be detected 9, for identifying the information of caliber.Described carrier roller mechanism 10 is provided with two groups, every group two, described position transducer 3 is between two carrying rollers, described position probing scrambler 7 is fixed on described carrier roller mechanism 10, carrying roller motor 6 drives carrier roller mechanism 10 to rotate, and carrier roller mechanism 10 drives metal tube 9 to be detected to rotate, in the time that metal tube 9 to be detected is put between two groups of carrier roller mechanisms 10, position transducer 3 perceives metal tube 9 and has placed, and sends relevant information to PLC controller 1.
As shown in Figure 2, every group of carrier roller mechanism 10 is positioned at the two ends of described metal tube to be detected 9, described carrier roller mechanism 10 forms point with two ends of metal tube 9 to be detected and contacts, in order to reduce carrying roller wearing and tearing to metal tube body periphery in rotary course, and then avoid having influence on the pattern recognition of doing for detecting seepage.
The workflow of described system is as follows:
(1) complete after the hydraulic testing, metal tube 9 to be detected enters into leak detection station, and position transducer 3 is sent to PLC controller 1 the pipe signal that has detecting;
(2) in the time detecting that leak detection station has had metal tube, PLC controller 1 is controlled caliber recognition system 4 and is started, and the caliber signal that caliber recognition system 4 is detected is sent to PLC controller 1;
(3) identifying after caliber information, receiving that this signal rear drive CCD camera 8 takes one group of metal tube the whole body photo to after the Program time delay regular hour in PLC controller 12 one signals of industrial computer, industrial computer 2;
(4) taken after first group of photo to metal tube 9 the whole body, PLC controller 1 drives carrying roller motor 6 to rotate, the caliber detecting according to caliber recognition system 4, PLC controller drives carrying roller motor 6 according to the rotational speed uniform rotation metal tube 9 of setting for the metal tube of different tube diameters, and speed regulates to control and realized by frequency converter 5; In the at the uniform velocity rotary course of 360 degree, CCD camera, under industrial computer 2 is controlled, is taken several groups of photos according to caliber, and the anglec of rotation detects by the position probing scrambler 7 detection realizations coaxial with carrier roller mechanism 10.Because the rotational speed of carrier roller mechanism 10 and the shooting number of times of CCD camera all match with caliber, therefore, can under minimum shooting number of times, effectively detect the seepage situation of metal tube.
(5) when CCD camera is taken, the photo that industrial computer is taken after using image processing software to the metal tube hydraulic testing is processed, use image processing method to data analysis, if there is seepage in metal tube pipe shaft, on industrial computer display screen, automatically indicate leakage area and send alerting signal, record seepage information, as metal tube, not occur that seepage is just judged to be qualified.Whether the principle that image processing software in industrial computer there are differences according to painted, colourity, reflecting rate, index of refraction etc., identifying the metal tube pipe shaft that utilizes CCD camera imaging to take has seepage situation.
(6) metal tube, completing after rotation leak detection in a week, enters next station.
Described system comprises electric control system and part of data acquisition, and part of data acquisition comprises industrial computer, and industrial computer passes through the pipe shaft view data of CCD collected by camera metal tube, and carries out data processing by the image processing software in industrial computer.Electric control system adopts PLC controller and sensor to realize, and described system can automatically detect and judge whether metal tube has breakthrough, has guaranteed the quality of metal tube, has reduced workman's labour intensity, has improved work efficiency.
Applied a concrete enforcement example herein principle of the present utility model and embodiment thereof are set forth, the explanation of above embodiment is just with helping understand method of the present utility model and core concept thereof.It should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not depart from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also will fall in the protection domain of the utility model claim.
Claims (9)
1. a metal tube seepage automatic checkout system, comprises electric control system (1,3,5,6,7,10) and pipe shaft image acquisition part (2,8), it is characterized in that,
Also comprise caliber recognition system (4), described caliber recognition system (4) is for detection of the caliber of metal tube, and caliber information is sent to described electric control system, described electric control system makes metal tube according to default speed rotation according to pipe diameter size, described image acquisition part according to pipe diameter size according to the default frequency of taking pictures to gathering metal tube whole body image, process and judge pipe shaft seepage place by image simultaneously.
2. metal tube seepage automatic checkout system as claimed in claim 1, it is characterized in that described electric control system comprises PLC controller (1), position transducer (3), position probing scrambler (7), frequency converter (5), carrying roller motor (6) and carrier roller mechanism (10), described position transducer (3) and described position probing scrambler (7) are electrically connected with PLC controller (1), described carrying roller motor (6) is electrically connected with PLC controller (1) by described frequency converter (5), described carrying roller motor (6) drives metal tube to rotate by carrier roller mechanism (10).
3. metal tube seepage automatic checkout system as claimed in claim 2, it is characterized in that described PLC controller (1) is electrically connected with described caliber recognition system (4), according to the metal tube anglec of rotation of the metal tube caliber of described caliber recognition system (4) identification and described position probing scrambler (7) detection, described frequency converter (5) is controlled.
4. metal tube seepage automatic checkout system as claimed in claim 1, is characterized in that described image acquisition part (2,8) comprises industrial computer (2) and CCD camera (8).
5. metal tube seepage automatic checkout system as claimed in claim 4, is characterized in that described industrial computer (2) carries out image processing and records detection information when described CCD camera (8) gathers image.
6. metal tube seepage automatic checkout system as claimed in claim 3, is characterized in that, described PLC controller (1) is controlled described carrying roller motor (6) and at the uniform velocity rotated with the speed drive metal tube of presetting.
7. metal tube seepage automatic checkout system as claimed in claim 5, it is characterized in that the above CCD camera (8) be arranged in leak detection station directly over.
8. metal tube seepage automatic checkout system as claimed in claim 1, is characterized in that described caliber recognition system (4) is positioned at left side or the right side of metal tube to be detected.
9. metal tube seepage automatic checkout system as claimed in claim 2, it is characterized in that described carrier roller mechanism (10) is provided with two groups, one group comprises two carrying rollers, described position transducer (3) is positioned between two groups of carrier roller mechanisms (10), and described position probing scrambler (7) is coaxially installed with the monomer carrying roller of carrier roller mechanism (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320572499.4U CN203616080U (en) | 2013-09-16 | 2013-09-16 | Metal tube seepage automatic detection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320572499.4U CN203616080U (en) | 2013-09-16 | 2013-09-16 | Metal tube seepage automatic detection system |
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| CN203616080U true CN203616080U (en) | 2014-05-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471793A (en) * | 2013-09-16 | 2013-12-25 | 新兴铸管股份有限公司 | Metal-pipe leakage automatic detection system |
| CN108828648A (en) * | 2018-06-21 | 2018-11-16 | 山东新华医疗器械股份有限公司 | A kind of reliability test device and method of electron linear accelerator target assembly |
| CN110775603A (en) * | 2019-11-07 | 2020-02-11 | 深圳永鼎医疗科技有限公司 | Blood collection tube scanning device |
| CN110812763A (en) * | 2019-11-28 | 2020-02-21 | 广东为众消防科技股份有限公司 | Fire-fighting pipeline leak source ad hoc network detection equipment based on internet of things monitoring |
-
2013
- 2013-09-16 CN CN201320572499.4U patent/CN203616080U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471793A (en) * | 2013-09-16 | 2013-12-25 | 新兴铸管股份有限公司 | Metal-pipe leakage automatic detection system |
| CN108828648A (en) * | 2018-06-21 | 2018-11-16 | 山东新华医疗器械股份有限公司 | A kind of reliability test device and method of electron linear accelerator target assembly |
| CN110775603A (en) * | 2019-11-07 | 2020-02-11 | 深圳永鼎医疗科技有限公司 | Blood collection tube scanning device |
| CN110812763A (en) * | 2019-11-28 | 2020-02-21 | 广东为众消防科技股份有限公司 | Fire-fighting pipeline leak source ad hoc network detection equipment based on internet of things monitoring |
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Granted publication date: 20140528 |
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| CX01 | Expiry of patent term |