CN201593975U - System for measuring structure of end of steel pipe - Google Patents
System for measuring structure of end of steel pipe Download PDFInfo
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- CN201593975U CN201593975U CN2010200432854U CN201020043285U CN201593975U CN 201593975 U CN201593975 U CN 201593975U CN 2010200432854 U CN2010200432854 U CN 2010200432854U CN 201020043285 U CN201020043285 U CN 201020043285U CN 201593975 U CN201593975 U CN 201593975U
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Abstract
The utility model provides a system for measuring the structure of the end of a steel pipe. The system comprises a system electrical apparatus control cabinet, a CCD camera system, a positioning mechanism and an image processing and displaying mechanism which are electrically connected with one other. A measuring order is performed by entering through a man-machine interaction interface of an industrial personal computer, the industrial personal computer transmits a signal to the system electrical apparatus control cabinet, a PLC in the system electrical apparatus control cabinet transmits the signal to an LED light source, a PLC signal of the system electrical apparatus control cabinet controls a connecting rod to drive a camera to forward move, the camera starts to shoot, and shot image is transmitted to the industrial personal computer through a USB line. The system has the following benefits: the camera and the industrial personal computer form a vision system to automatically capture an image of an end surface of the steel pipe, and the image is processed through the industrial personal computer, thereby improving the measuring precision, eliminating the human error, improving the measuring speed, reducing the labor intensity of quality control personnel, improving the speed and the accuracy of detection data, realizing the automatic on-line detection of products, greatly improving the safety for detecting the thickness of the end of the pipe, and being capable of eradicating the safe accidents during detection.
Description
Technical field
The utility model relates to a kind of measurement mechanism, is a kind of measuring system to the pipe end structure.
Background technology
Wall thickness is the important technology index of weldless steel tube, and the measurement fast and accurately of pipe end wall thickness has great significance to the crudy of weldless steel tube.Therefore, seamless steel tube production enterprise all is equipped with pipe end wall thickness measuring station at each bar production line, and per tour is inferior all to have full-time quality inspection personnel to detect.Measure the pipe end wall thickness, parameters such as ovality are pursued a measurement by the quality inspection personnel at scene with measurer, and human factor causes accuracy of measurement to descend.How to realize the automatic measurement of pipe end parameter, designing a kind of measurement mechanism is the task of top priority.
Summary of the invention
For solving the problem that exists in the above-mentioned technology, the purpose of this utility model provides a kind of measuring system to the pipe end structure, is beneficial to realize the measurement fast and accurately to the pipe end wall thickness, improves accuracy of detection, alleviates labor intensity of operating personnel.
For achieving the above object, the technical solution adopted in the utility model provides a kind of measuring system to the pipe end structure, wherein: this measuring system includes system's electric control cabinet of mutual electrical connection, the CCD camera system, detent mechanism and Flame Image Process indication mechanism, described system electric control cabinet includes PLC, PLC comprises the power module and the Programmable Logic Controller module of mutual electrical connection, described CCD camera system comprises the camera and the led light source of mutual electrical connection, described detent mechanism comprises the connecting rod and the distance measuring sensor of mutual electrical connection, and described Flame Image Process indication mechanism is the mechanism by industrial computer control; After the human-computer interaction interface of measurement instruction process industrial computer enters the instruction of measurement, industrial computer passes to the system electrical switch board with signal, PLC in the system electrical switch board passes to led light source with signal, the PLC signal controlling connecting rod of simultaneity factor electrical control cabinet drive camera march forward to, camera is taken, and is transferred to industrial computer by the USB line.
Effect of the present utility model is that this system is the automatic detection system of external diameter ovality in the cover pipe end, utilize camera and industrial computer to form vision system and catch steel pipe end view drawing picture automatically, carry out Flame Image Process through industrial computer, improve measuring accuracy, eliminate personal error, improve measuring speed.Realize that On-line Product detects robotization because pipe end imaging thickness measuring system has adopted non-contact measurement method, cancelled manual pipe end thickness measuring, improved the security that the pipe end thickness measuring detects greatly, can stop the security incident that this detects link.Simultaneously, adopt pipe end imaging thickness measuring system and data-transformation facility, reduced the labour intensity of quality inspection personnel, improved the speed and the accuracy that detect data.Field test data and static manual measurement data basically identical show and adopt the technological means of pipe end imaging thickness measuring system as the pipe end wall thickness measuring, satisfy the requirement of technology and accuracy of detection fully.Therefore, pipe end imaging thickness measuring system has excellent application performance and technical advance, has wide promotional value.
Description of drawings
Fig. 1 is a measuring system synoptic diagram of the present utility model;
Fig. 2 is that measuring system of the present utility model connects block diagram;
Fig. 3 is measuring system signal conveying flow figure of the present utility model.
Among the figure:
1, system electrical switch board 2, camera 3, connecting rod 4, led light source
5, tested steel pipe 6, power module 7, Programmable Logic Controller module
8, metallic channel 9, pressure-air valve 10, module guide rail 11, industrial computer
Embodiment
Structure to the measuring system to the pipe end structure of the present utility model is illustrated in conjunction with the accompanying drawings.
As Fig. 1, shown in 2, measuring system to the pipe end structure of the present utility model, this measuring system includes system's electric control cabinet 1 of mutual electrical connection, the CCD camera system, detent mechanism and Flame Image Process indication mechanism, described system electric control cabinet 1 includes PLC, PLC comprises the power module 6 and the Programmable Logic Controller module 7 of mutual electrical connection, described CCD camera system comprises the camera 2 and the led light source 4 of mutual electrical connection, described detent mechanism comprises the connecting rod 3 and the distance measuring sensor of mutual electrical connection, and described Flame Image Process indication mechanism is the mechanism by industrial computer 11 controls; After the human-computer interaction interface of measurement instruction process industrial computer 11 enters the instruction of measurement, industrial computer 11 passes to system electrical switch board 1 with signal, the PLC that the system electrical switch board is 1 li passes to led light source 4 with signal, the PLC signal controlling connecting rod 3 of simultaneity factor electrical control cabinet 1 drive cameras 2 march forward to, camera 2 is taken, and is transferred to industrial computer 11 by the USB line.
The length of described connecting rod 3 is decided to be 1 meter, and described distance measuring sensor is located on the top board of connecting rod 3 front ends.
This measuring system includes system's electric control cabinet 1, CCD camera system, detent mechanism and the Flame Image Process indication mechanism of mutual electrical connection.System electrical the switch board 1 main power supply of being responsible for whole measuring system, air feed and robotization control.The PLC module of system in the electrical control cabinet 1 comprises power module 6 and Programmable Logic Controller module 7, and Programmable Logic Controller module 7 is used for calling and carrying out user program, drives measurement mechanism and finishes and measure action.Its model is OMRON CPM1A-20CDR-A-V1.PLC module in the system electrical control cabinet 1 installs and fixes by module guide rail 10.Also be provided with in the system electrical control cabinet 1 and make metallic channel 8 and the pressure-air valve 9 that electric connection line is used in order, pressure-air valve 9 is responsible for the switching of pressure-air.
The DH3102-UT camera 2 that adopts Visual Co.,Ltd of Daheng to produce, valid pixel is 2048 * 1510.Tableaux can be taken, dynamic image can not be clearly taken.Camera 2 is connected by the USB line with industrial computer 11, and the USB line is used for the transmission of data and control signal, and is camera 2 power supplies.
The length of connecting rod 3 is fixed as 1 meter, and its front end is provided with top board and distance measuring sensor.Connecting rod 3 is controlled its action by the control program in the system electrical switch board 1, and drives camera 2 and move forward and backward together, guarantees that object distance is 1 meter of a fixed value.
Led light source 4 can send very strong parallel rays, for the sharpness of imaging provides assurance.
In the industrial computer 11 imgae processing software is arranged, select the HALCON imgae processing software of German MVTec company for use.HALCON is a all-round machine vision software bag, and it provides current function the most powerful vision algorithm kit based on up-to-date computer image treatment and computer vision technique, is the most comprehensive machine vision process software in the world.The human-computer interaction interface that computer also has the user to write is used to accept operational order and shows measurement result.
The structure of the measuring system to the pipe end structure of the present utility model is achieved in that process is as follows:
As shown in Figure 3, after the human-computer interaction interface of measurement instruction process industrial computer 11 enters the instruction of measurement, industrial computer 11 passes to system electrical switch board 1 with signal, the PLC that the system electrical switch board is 1 li comprises the power module 6 of mutual electrical connection, Programmable Logic Controller module 7, metallic channel 8 and module guide rail 10, and the unlatching of control pressure-air valve 9, make high pressure air drives connecting rod 3 drive cameras 2 march forward to, until the tube wall that touches tested steel pipe 5, led light source 4 unlatchings this moment, camera 2 carries out the image taking to tested steel pipe 5 tube walls, be transferred to industrial computer 11 by the USB line, obtain the profile of a pipe end after utilizing HALCON software that image is handled.After determining the center of annulus, do the straight line by the center, straight line and inside and outside circle have four intersection points, utilize the distance of software measurement homonymy two intersection points to be the wall thickness of pipe end.Get eight fan-shaped zones on annulus, each covering of the fan is spaced apart 0.5 degree by ten rectilinear(-al)s, and this regional wall thickness value is the mean value of ten some wall thickness.What show on annulus is each regional mean value, the minimum and maximum value of storage in argument table.The wall thickness value that software is measured is actually pixel value, under the condition that object distance is fixed, is converted into actual wall thickness according to a fixing ratio.At last on the man-machine interface of industrial computer, measurement result is shown measurement result is schematically as follows shown:
Table one assay example
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| Benchmark | 69.43567 | 70.75533 | 70.21267 | 71.37417 | 71.34883 | 71.19217 | 69.94033 | 69.65 |
| Measure | 69.7782 | 70.7184 | 70.3324 | 71.9954 | 71.9212 | 71.4964 | 70.461 | 69.8932 |
| Error | 0.342533 | -0.03693 | 0.119733 | 0.621233 | 0.572367 | 0.304233 | 0.520667 | 0.2432 |
Claims (2)
1. measuring system to the pipe end structure, it is characterized in that: this measuring system includes system's electric control cabinet (1) of mutual electrical connection, the CCD camera system, detent mechanism and Flame Image Process indication mechanism, described system electric control cabinet (1) includes PLC, PLC comprises the power module (6) and the Programmable Logic Controller module (7) of mutual electrical connection, described CCD camera system comprises the camera (2) and the led light source (4) of mutual electrical connection, described detent mechanism comprises the connecting rod (3) and the distance measuring sensor of mutual electrical connection, and described Flame Image Process indication mechanism is the mechanism by industrial computer (11) control; After the human-computer interaction interface of measurement instruction process industrial computer (11) enters the instruction of measurement, industrial computer (11) passes to system electrical switch board (1) with signal, the PLC of system electrical switch board (1) lining passes to led light source (4) with signal, the PLC signal controlling connecting rod (3) of simultaneity factor electrical control cabinet (1) drive camera (2) march forward to, camera (2) is taken, and is transferred to industrial computer (11) by the USB line.
2. the measuring system to the pipe end structure according to claim 1 is characterized in that: the length of described connecting rod (3) is decided to be 1 meter, and described distance measuring sensor is located on the top board of connecting rod (3) front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200432854U CN201593975U (en) | 2010-01-20 | 2010-01-20 | System for measuring structure of end of steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200432854U CN201593975U (en) | 2010-01-20 | 2010-01-20 | System for measuring structure of end of steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201593975U true CN201593975U (en) | 2010-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200432854U Expired - Lifetime CN201593975U (en) | 2010-01-20 | 2010-01-20 | System for measuring structure of end of steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201593975U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175695B (en) * | 2010-12-29 | 2012-11-21 | 天津钢管集团股份有限公司 | Operating method of endoscope in manufacture of nondestructive testing standard sample tube |
| CN105890527A (en) * | 2014-10-17 | 2016-08-24 | 中南大学 | Automatic device capable of realizing wall thickness deviation measurement of steel tube |
| CN105953864A (en) * | 2016-04-22 | 2016-09-21 | 北京石油化工学院 | Low power consumption intelligent CCD counter weight material level detection system |
| CN107941855A (en) * | 2017-11-22 | 2018-04-20 | 四川大学 | A kind of pipe end thermal imaging detection device based on permanent magnet rotary heating |
| CN110956659A (en) * | 2019-11-29 | 2020-04-03 | 航天特种材料及工艺技术研究所 | Industrial CT-based rapid measuring method for wall thickness of annular cross section |
-
2010
- 2010-01-20 CN CN2010200432854U patent/CN201593975U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175695B (en) * | 2010-12-29 | 2012-11-21 | 天津钢管集团股份有限公司 | Operating method of endoscope in manufacture of nondestructive testing standard sample tube |
| CN105890527A (en) * | 2014-10-17 | 2016-08-24 | 中南大学 | Automatic device capable of realizing wall thickness deviation measurement of steel tube |
| CN105953864A (en) * | 2016-04-22 | 2016-09-21 | 北京石油化工学院 | Low power consumption intelligent CCD counter weight material level detection system |
| CN105953864B (en) * | 2016-04-22 | 2024-02-27 | 沈阳顺义科技股份有限公司 | Low-power consumption intelligent CCD weight material level detection system |
| CN107941855A (en) * | 2017-11-22 | 2018-04-20 | 四川大学 | A kind of pipe end thermal imaging detection device based on permanent magnet rotary heating |
| CN110956659A (en) * | 2019-11-29 | 2020-04-03 | 航天特种材料及工艺技术研究所 | Industrial CT-based rapid measuring method for wall thickness of annular cross section |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190722 Address after: 300301 Tianjin, Dongli Jintang Road, No. 396 Patentee after: Tianjin Steel Tube Manufacturing Co., Ltd. Address before: 300301 Tianjin Dongli District Jintang Highway Patentee before: Tianjin Steel Pipe Group Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100929 |
|
| CX01 | Expiry of patent term |