CN101131315A - On-line visual measuring system for tile size and shape - Google Patents
On-line visual measuring system for tile size and shape Download PDFInfo
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- CN101131315A CN101131315A CNA2006100622518A CN200610062251A CN101131315A CN 101131315 A CN101131315 A CN 101131315A CN A2006100622518 A CNA2006100622518 A CN A2006100622518A CN 200610062251 A CN200610062251 A CN 200610062251A CN 101131315 A CN101131315 A CN 101131315A
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Abstract
The invention discloses a size and shape online visual measurement system of ceramic tile; it was installed with two horizontal guide rails and two vertical guide rails fixed on the frame above the belt conveyer, the two vertical guide rails were installed with slide rails, slide rail on each vertical guide is set with two fore and after sliding block, each sliding block was installed with camera erecting fixture adjustable for height with a CCD camera fixed on it, four CCD camera were connected with computer image acquisition module, each CCD camera take a picture of angle of tile. The present invention overcomes the error of optical imaging, as well as the shortcomings of low measurement accuracy induced by the larger the tiles, the lower the measurement accuracy was, to achieve the measuring accuracy of 0.05 mm; as it simply only measure the size and shape, its detection speed was more faster, can less than 500 ms, can achieve real-time measurement in the ceramic tile production line.
Description
Technical field
The present invention relates to a kind of measuring system, particularly a kind of being used for carried out the robotization vision measurement system that online (production line) detects to the every size and the shape thereof of ceramic tile.
Background technology
The size of ceramic tile and shape error are very big to the quality influence of ceramic tile.Most of producers adopt the size and the shape of manual measurement ceramic tile, and all there are a lot of problems in the accuracy of measurement, stability and efficient.Therefore, people are badly in need of developing a kind of high-level efficiency, high-precision machine checkout equipment, and control plays an important role to the ceramic tile quality of production.At present, the someone has developed the ceramic tile of single CCD camera and has produced online vision measurement system, and its groundwork principle is to utilize the image of the ceramic tile of a CCD camera collection by its shooting area, take the photograph image be used for dimensional measurement; Dimensional measurement is to locate each edge that ceramic tile shows in image, calculate through some survey instruments, calculates the size of the ceramic tile of being surveyed.System compares this numerical value and qualified numerical value, if this numerical value within qualified span, then is judged to be certified products; If this numerical value outside qualified span, then is judged to be unacceptable product, this moment, system reported to the police automatically.Said system can comprehensively be finished the detection of size, edge defect, spot and aberration, detection speed 30-80 spare/minute, the shortcoming that the vision measurement system of this single CCD camera is used for dimensional measurement is to increase measuring accuracy with ceramic tile dimension to reduce, the influence of adding optical imaging error is big, therefore measuring accuracy is not high, generally has only 0.2mm.
Summary of the invention
The present invention be to solve the measuring accuracy that exists in the prior art with ceramic tile dimension increase reduce, problem that optical imaging error influences measuring accuracy, a kind of have the more ceramic tile dimension and the online vision measurement system of shape of high measurement speed and measuring accuracy are provided.
For solving the problems of the technologies described above, the present invention has adopted following technical scheme: design the online vision measurement system of a kind of ceramic tile dimension and shape, comprise ceramic tile travelling belt on the ceramic tile production line and the ceramic tile that transmits by the ceramic tile travelling belt, described ceramic tile travelling belt top is provided with the longitudinal rail that two cross slide waies being fixed on the frame and two can laterally move along cross slide way, be respectively equipped with slide rail on two longitudinal rails, two slide blocks before and after being respectively equipped with on the slide rail of every longitudinal rail, every slide block is provided with adjustable for height camera erecting frame, the bottom of each camera erecting frame is fixed with a CCD camera, four CCD cameras all are connected with the computer picture collecting unit, the image at an angle of each CCD camera picked-up ceramic tile.
Also downwards be provided with a backlight suspending rod on every slide block, the upper end of every backlight suspending rod is fixed on the slide block with extending, and the lower end is fixed with a backlight, this backlight be positioned at corresponding C CD camera under.Also be respectively arranged with on the described every slide block can with slide block and on camera erecting frame and backlight suspending rod be locked in slide block locking knob on the suitable lengthwise position.
The height of described camera erecting frame is realized lift adjustment by the height adjustment mechanism on the slide block, and this height adjustment mechanism comprises height adjustment knob and height locking knob.
Also be respectively equipped with slide rail on described two cross slide waies, the two ends of every longitudinal rail are erected on the cross slide way by one slide-plate respectively, and the slide rail of slide plate and cross slide way forms and is slidingly matched.Described slide plate be provided with can with slide plate and on longitudinal rail be locked in longitudinal rail locking knob on the suitable lateral attitude.
The present invention has following beneficial effect and advantage with respect to prior art:
(1) owing to used four CCD cameras, each camera is inspected an angle of ceramic tile, like this no matter the ceramic tile size, all only detect the very little subrange in bight, therefore not relying on pixel counts solves size detection and SHAPE DETECTION, it is big more to have overcome ceramic tile dimension, the low shortcoming of the low more measuring accuracy that causes of measuring accuracy, can obtain very high resolution, precision can reach the pixel of CCD apart from value in theory, consider the grinding accuracy and the imaging sharpness issues at ceramic tile edge, and actual needs, therefore can realize the measuring accuracy of 0.05mm, simultaneously, also overcome the influence of the optical imaging error that exists in the prior art.
(2) owing to only measure the size and dimension precision of ceramic tile, detection speed is fast, less than 500 milliseconds, can realize real-time online measuring on ceramic tile production line, makes the measuring process full automation.
(3) improve accuracy, stability and the efficient measured, reduced cost, increased economic benefit.
Description of drawings
Fig. 1 is the structural representation of online vision measurement system of the present invention;
Fig. 2 is the structural representation of the scaling ruler that uses among the present invention.
Embodiment
As shown in Figure 1, the online vision measurement system of ceramic tile dimension of the present invention and shape is installed on the ceramic tile production line, is positioned at the rear portion of edge polisher, through the ceramic tile 1 of edge polisher polishing on the travelling belt successively by measuring system below and measured.Online vision measurement system comprises two cross slide waies 5,11 that are parallel to each other, and cross slide way 5,11 is fixed on the frame (not shown in the accompanying drawing) of whole measuring system, can't move, and is respectively equipped with slide rail on two cross slide waies 5,11.Vertically be provided with two parallel longitudinal rails 4,7 with cross slide way 5,11, the two ends of every longitudinal rail are erected on the cross slide way 5,11 by one slide-plate 13 respectively, slide plate 13 cooperates with the slide rail of cross slide way, longitudinal rail 4,7 can laterally be moved along cross slide way 5,11, thereby the lateral attitude of the camera 2 that will mention below changing is with the ceramic tile 1 that adapts to different size.Slide plate 13 is provided with longitudinal rail locking knob 6, can with slide plate 13 and on longitudinal rail 4,7 be locked on the suitable lateral attitude.Also be respectively equipped with slide rail on the longitudinal rail 4,7, two slide blocks before and after being respectively equipped with on the slide rail of every longitudinal rail, every slide block 8 is provided with adjustable for height camera erecting frame 14, and the bottom of camera erecting frame 14 is fixed with a CCD camera 2.The height of camera erecting frame 14 is realized lifting by the height adjustment mechanism on the slide block 8, and this height adjustment mechanism is mainly carried out by height adjustment knob 9, by regulating this knob, can guarantee that four cameras equate apart from the distance of ceramic tile surface; Highly regulate the back that finishes by of the height locking of height locking knob 12 with camera erecting frame 14.Also be provided with slide block locking knob 10 on the described slide block 8, can with slide block 8 and on camera erecting frame 14 be locked on the suitable lengthwise position.In addition, every slide block 8 also is provided with a backlight suspending rod 15 downwards with extending, and the upper end of every backlight suspending rod 15 is fixed on the slide block 8, and the lower end is fixed with a backlight 3, and this backlight 3 can be the LED lamp.Each backlight 3 below an angle of ceramic tile 1, be positioned at CCD camera 2 under, purpose is to guarantee that the edge imaging at angle of ceramic tile is clear; The image acquisition card connection of CCD camera and computing machine, the image at an angle of each CCD camera picked-up ceramic tile.By moving above-mentioned slide block, longitudinally guide rail changes the lengthwise position of camera and backlight, to adapt to the ceramic tile of different size.
Four CCD cameras among the present invention are installed in the same plane, the guide rail of the vertical and horizontal that can concern by being orthogonal moves and changes its position, so that measure the ceramic tile of different size, in order to eliminate the inconsistent influence of camera height, the height and position of each camera all can be adjusted.Behind the angle point of the center of each camera rough alignment ceramic tile, adjust camera and just make four cameras on a surface level, the backlight by being arranged on ceramic tile angle point below with two intersection edges blur-free imagings of Glazed tile angle on camera.By the image collection card on the metering computer with image acquisition in computing machine, Survey Software finds two limits of angle point by the gray scale of pixel is judged, and therefore detects angle point.
In order to realize measuring, at first must demarcate four pairing pixels of corner location of a standard ceramic tile the same with scaling ruler with the ceramic tile dimension that will measure, later on when measuring actual ceramic tile, each angle point that Survey Software is judged actual ceramic tile is the site error of corresponding calibration point relatively, just can calculate the size and dimension error of actual ceramic tile.
With reference to figure 2, principle of work to scaling ruler is described as follows: this scaling ruler is actual to be a vernier scale 16, it is with two movably verniers 17, the glass sheet 18 that a band vernier graduation and demarcation mark are arranged on each vernier, be printed with one group of round spot of accurately arranging by matrix on the glass sheet, before the use, earlier the distance of two glass sheet is adjusted to the distance that just equals ceramic tile length (or width) basic size, then scaling ruler is placed under two CCD cameras, demarcate two angle points of desired tile by each one round spot on two glass sheet, justify the direction that spot comes calibrated ruler by the delegation on the glass sheet, so repeat four times, mark four angle points of desired tile.
Set-up procedure before measuring: before the beginning surveying work, at first according to the ceramic tile size, moving slider and longitudinal rail make the angle of the center rough alignment ceramic tile of four cameras, make the angle point of ceramic tile just be imaged on the center of camera visual field; Regulate height adjustment knob, four cameras are equated apart from the distance of ceramic tile upper surface, at last with knob 10 and knob 12 all bascules of locking.Start computing machine and process of measurement.Set-up procedure before measuring is like this just finished.
The surveying work process: ceramic tile is through behind the edging, moves to below the CCD camera with travelling belt, and moment pauses, CCD camera picked-up ceramic tile bight image, data be by the image collection card collection, the Computer Analysis image, find out the ceramic tile angle point, with the calibration point contrast of prior record, calculate the size and dimension error of ceramic tile, if overproof, provide the acousto-optic warning, finish the waster numeration simultaneously,, then control device for eliminating waster is rejected if there is device for eliminating the back of production line.The algorithm principle of the Survey Software of using among the present invention and programming technique and the course of work thereof can realize by known Survey Software and programming technique, not do specific descriptions at this.
The online vision measurement system of ceramic tile dimension of the present invention and shape, use four CCD cameras, each camera is inspected an angle of ceramic tile, like this no matter the ceramic tile size, all only detect the very little subrange in bight, eliminated the influence of the optical imaging error that exists in the vision measurement system of single CCD camera; Do not rely on pixel counts and realize dimensional measurement, realize measuring as reference as four angle points of desired tile but utilize scaling ruler to demarcate four reference points, therefore, measuring accuracy is not influenced by the ceramic tile size.A this patent measurement size and form accuracy, therefore, detection speed is fast, can finish in 500 milliseconds, therefore can do real-time online measuring on ceramic tile production line, makes the measuring process full automation.
Above-described only is preferred implementation of the present invention, should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from inventive concept of the present invention, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (6)
1. ceramic tile dimension and the online vision measurement system of shape, comprise ceramic tile travelling belt on the ceramic tile production line and the ceramic tile that transmits by the ceramic tile travelling belt, it is characterized in that: described ceramic tile travelling belt top is provided with the longitudinal rail that two cross slide waies being fixed on the frame and two can laterally move along cross slide way, be respectively equipped with slide rail on two longitudinal rails, two slide blocks before and after being respectively equipped with on the slide rail of every longitudinal rail, every slide block is provided with adjustable for height camera erecting frame, the bottom of each camera erecting frame is fixed with a CCD camera, four CCD cameras all are connected with the computer picture collecting unit, the image at an angle of each CCD camera picked-up ceramic tile.
2. ceramic tile dimension according to claim 1 and the online vision measurement system of shape, it is characterized in that: on every slide block, also be provided with a backlight suspending rod downwards with extending, the upper end of every backlight suspending rod is fixed on the slide block, the lower end is fixed with a backlight, this backlight be positioned at corresponding C CD camera under.
3. ceramic tile dimension according to claim 2 and the online vision measurement system of shape is characterized in that: also be respectively arranged with on the described every slide block can with slide block and on camera erecting frame and backlight suspending rod be locked in slide block locking knob on the suitable lengthwise position.
4. according to arbitrary described ceramic tile dimension of claim 1 to 3 and the online vision measurement system of shape, it is characterized in that: the height of described camera erecting frame is realized lift adjustment by the height adjustment mechanism on the slide block, and this height adjustment mechanism comprises height adjustment knob and height locking knob.
5. according to arbitrary described ceramic tile dimension of claim 1 to 3 and the online vision measurement system of shape, it is characterized in that: also be respectively equipped with slide rail on described two cross slide waies, the two ends of every longitudinal rail are erected on the cross slide way by one slide-plate respectively, and the slide rail of slide plate and cross slide way forms and is slidingly matched.
6. ceramic tile dimension according to claim 5 and the online vision measurement system of shape is characterized in that: described slide plate be provided with can with slide plate and on longitudinal rail be locked in longitudinal rail locking knob on the suitable lateral attitude.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100622518A CN101131315A (en) | 2006-08-22 | 2006-08-22 | On-line visual measuring system for tile size and shape |
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| CNA2006100622518A CN101131315A (en) | 2006-08-22 | 2006-08-22 | On-line visual measuring system for tile size and shape |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871850A (en) * | 2010-05-17 | 2010-10-27 | 黑龙江省农业机械工程科学研究院 | Special lighting device for seeding images |
| CN101975557A (en) * | 2010-08-31 | 2011-02-16 | 杭州三速科技有限公司 | Ceramic plate detection equipment and detection method |
| CN102033138A (en) * | 2010-10-18 | 2011-04-27 | 同济大学 | Train speed measuring equipment based on track characteristics |
| CN102322797A (en) * | 2011-08-15 | 2012-01-18 | 吉林大学 | Three-freedom-degree automobile wheel positioning parameter three-dimensionalal visual flexible detection system |
| CN101750039B (en) * | 2008-12-01 | 2012-09-05 | 佛山市三水盈捷精密机械有限公司 | Automatic ceramic tile detector |
| CN103453834A (en) * | 2012-07-05 | 2013-12-18 | 武汉轻工大学 | Novel upper light source inclined illumination type image collecting method for tile size detection |
| CN103955876A (en) * | 2014-05-15 | 2014-07-30 | 武汉科技大学 | Library automatic debugging system based on embedded technology and image processing |
| CN104034260A (en) * | 2014-05-27 | 2014-09-10 | 佛山职业技术学院 | Ceramic tile automatic detection device |
| CN104394385A (en) * | 2014-12-10 | 2015-03-04 | 华南师范大学 | Online detection device and detection method for ceramic tile quality |
| CN104897054A (en) * | 2014-10-09 | 2015-09-09 | 苏州富强科技有限公司 | Position detection device |
| CN105157581A (en) * | 2015-10-09 | 2015-12-16 | 广东赛因迪科技股份有限公司 | Detection method and apparatus for ceramic sheet dimension |
| CN106124524A (en) * | 2016-06-22 | 2016-11-16 | 滨州医学院 | Intelligent optical diaphragm online detection instrument |
| CN106303389A (en) * | 2015-06-02 | 2017-01-04 | 安顺市晶英科技研发有限责任公司 | A kind of tea picking machine intelligent monitoring and controlling device based on 3-D view |
| CN106352960A (en) * | 2016-08-16 | 2017-01-25 | 吴超 | Weight detection equipment for mosaic tiles |
| CN106679566A (en) * | 2017-01-19 | 2017-05-17 | 佛山职业技术学院 | Quick detector of large format tiles |
| CN107655427A (en) * | 2017-10-24 | 2018-02-02 | 佛山市迈迅机电有限公司 | A kind of ceramic tile flatness detecting device |
| CN109839067A (en) * | 2017-11-29 | 2019-06-04 | 宝山钢铁股份有限公司 | Plate size measuring device and method |
| CN110986797A (en) * | 2019-10-21 | 2020-04-10 | 湖北工业大学 | Vehicle compartment size and position measuring device and method of full-automatic bagged vehicle stacking machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750039B (en) * | 2008-12-01 | 2012-09-05 | 佛山市三水盈捷精密机械有限公司 | Automatic ceramic tile detector |
| CN101871850A (en) * | 2010-05-17 | 2010-10-27 | 黑龙江省农业机械工程科学研究院 | Special lighting device for seeding images |
| CN101975557A (en) * | 2010-08-31 | 2011-02-16 | 杭州三速科技有限公司 | Ceramic plate detection equipment and detection method |
| CN102033138A (en) * | 2010-10-18 | 2011-04-27 | 同济大学 | Train speed measuring equipment based on track characteristics |
| CN102322797A (en) * | 2011-08-15 | 2012-01-18 | 吉林大学 | Three-freedom-degree automobile wheel positioning parameter three-dimensionalal visual flexible detection system |
| CN102322797B (en) * | 2011-08-15 | 2013-03-20 | 吉林大学 | Three-freedom-degree automobile wheel positioning parameter three-dimensionalal visual flexible detection system |
| CN103453834A (en) * | 2012-07-05 | 2013-12-18 | 武汉轻工大学 | Novel upper light source inclined illumination type image collecting method for tile size detection |
| CN103955876A (en) * | 2014-05-15 | 2014-07-30 | 武汉科技大学 | Library automatic debugging system based on embedded technology and image processing |
| CN104034260A (en) * | 2014-05-27 | 2014-09-10 | 佛山职业技术学院 | Ceramic tile automatic detection device |
| CN104034260B (en) * | 2014-05-27 | 2017-09-22 | 佛山职业技术学院 | A kind of ceramic tile automatic detection device |
| CN104897054A (en) * | 2014-10-09 | 2015-09-09 | 苏州富强科技有限公司 | Position detection device |
| CN104394385A (en) * | 2014-12-10 | 2015-03-04 | 华南师范大学 | Online detection device and detection method for ceramic tile quality |
| CN104394385B (en) * | 2014-12-10 | 2018-08-31 | 华南师范大学 | A kind of ceramic tile quality on-line detecting device and its detection method |
| CN106303389A (en) * | 2015-06-02 | 2017-01-04 | 安顺市晶英科技研发有限责任公司 | A kind of tea picking machine intelligent monitoring and controlling device based on 3-D view |
| CN105157581A (en) * | 2015-10-09 | 2015-12-16 | 广东赛因迪科技股份有限公司 | Detection method and apparatus for ceramic sheet dimension |
| CN106124524A (en) * | 2016-06-22 | 2016-11-16 | 滨州医学院 | Intelligent optical diaphragm online detection instrument |
| CN106124524B (en) * | 2016-06-22 | 2023-10-13 | 滨州医学院 | Intelligent optical diaphragm on-line detection equipment |
| CN106352960A (en) * | 2016-08-16 | 2017-01-25 | 吴超 | Weight detection equipment for mosaic tiles |
| CN106352960B (en) * | 2016-08-16 | 2018-11-06 | 黄阳 | A kind of mosaic tiles Weight detecting device |
| CN106679566A (en) * | 2017-01-19 | 2017-05-17 | 佛山职业技术学院 | Quick detector of large format tiles |
| CN107655427A (en) * | 2017-10-24 | 2018-02-02 | 佛山市迈迅机电有限公司 | A kind of ceramic tile flatness detecting device |
| CN109839067A (en) * | 2017-11-29 | 2019-06-04 | 宝山钢铁股份有限公司 | Plate size measuring device and method |
| CN110986797A (en) * | 2019-10-21 | 2020-04-10 | 湖北工业大学 | Vehicle compartment size and position measuring device and method of full-automatic bagged vehicle stacking machine |
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