CN206523441U - Roll dressing surface defects detection system - Google Patents
Roll dressing surface defects detection system Download PDFInfo
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- CN206523441U CN206523441U CN201720229565.6U CN201720229565U CN206523441U CN 206523441 U CN206523441 U CN 206523441U CN 201720229565 U CN201720229565 U CN 201720229565U CN 206523441 U CN206523441 U CN 206523441U
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Abstract
The utility model discloses roll dressing surface defects detection system, detecting system includes structured light projector, imaging device, data transmission module and image processing and analysis system, structured light projector can be towards the effigurate structure light figure of tested roller surface projection tool, imaging device can to being reflected through roller surface after figure be imaged, signal is transmitted in image processing and analysis system by imaging device by data transmission module, the image information received and the standard picture information itself being pre-stored can be compared and export testing result by image processing and analysis system, the utility model realizes spot based on the principle that structure light reflects, reticulate pattern, the roll dressing surface defect qualitative and quantitative such as spiral lamination, the detecting system can realize full-automatic detection, and the detecting system has achievable quantitative measurment, the characteristics of detection efficiency and high accuracy rate, the deficiency of artificial visual method can effectively be made up.
Description
Technical field
The utility model belongs to grinding skin defects detection field, and in particular to a kind of roll mill reflected based on structure light
Cut surface defects detection system.
Background technology
Spot, reticulate pattern, spiral lamination etc. are the normal hair forms of roll dressing surface defect, be also determine roll dressing quality and
One important indicator of stability.The automatic detection sides such as eddy current inspection, ultrasonic examination used in current roll grinder
Method can not the such defect of effective detection, its detect mainly by experienced grinder master worker under suitable illumination condition from specific
Angle visual observations and then judgement are carried out to roller surface.This artificial range estimation detection mode is high to workman's skill requirement, sentences
Disconnected subjectivity is strong, it is difficult to realize the effective detection of the full roll surface of roll, and detection efficiency and accuracy rate are low.Due to artificial visual method
Limitation, it is only capable of carrying out roller surface grinding quality and defect qualitatively observation assessing, and can not realize quantitative measurment
With evaluation；And due to the subjectivity of observed pattern, observation has certain randomness, it is also difficult to form unified observation standard.
Industrially also have at present and roll or rolled products surface are handled using modes such as polishings so that defect characteristic contrast is obtained
To strengthen to improve the accuracy of artificial observation, but these mode Detection results are limited, but detection efficiency is further reduced, and it is most
Final review, which is sentenced, to be still needed to carry out by artificial observation, so that the limitation of naked eyes detection method can not be broken away from.
Utility model content
In order to overcome drawbacks described above, the utility model provides a kind of roll dressing surface defects detection system, the roll
Grinding skin defect detecting system can realize the qualitative and quantitative measurement to defects such as spot, reticulate pattern, spiral laminations, improve defect
The efficiency and accuracy of detection.
The utility model is in order to solve the technical scheme that its technical problem is used：A kind of roll dressing surface defects detection
System, including structured light projector, imaging device, data transmission module and image processing and analysis system, the structure light are thrown
Emitter can be towards the effigurate structure light figure of tested roller surface projection tool, and imaging device can be to through roller surface
Figure is imaged after reflection, and signal is transmitted in image processing and analysis system by imaging device by data transmission module, figure
As the standard picture information that the image information received can be pre-stored by processing with analysis system with itself is compared
And export testing result.
As further improvement of the utility model, the imaging device is CCD or CMOS industrial cameras.
As further improvement of the utility model, the structured light projector is that can project coherent monochromatic figure or non-
Relevant white light, the structure light laser or structured light projection instrument of monochromatic light figure.
As further improvement of the utility model, structured light projector is provided with the first adjusting means, the first regulation dress
The segment angle of structured light projector projective structure light can be adjusted by putting.
As further improvement of the utility model, the second adjusting means and the 3rd adjusting means are additionally provided with, wherein second
Adjusting means can adjust the projection distance of structured light projector, and the 3rd adjusting means can adjust imaging device and tested roll
Vertical range between the projected graphics center of surface.
As further improvement of the utility model, the structured light projector transmitting light path central axis and imaging device
Receiving light path central axis is symmetrical on being incident upon roller surface centre of figure, and structured light projector transmitting light path central axis
With forming setting angle in the middle of imaging device receiving light path central axis.
As further improvement of the utility model, the structured light projector transmitting light path central axis and imaging device
Angle is 0-160 degree in the middle of receiving light path central axis.
As further improvement of the utility model, the 4th adjusting means is additionally provided with, the 4th adjusting means can be adjusted
The mounting inclination angle degree of structured light projector and the mounting inclination angle degree of imaging device and horizontal range therebetween.
As further improvement of the utility model, mechanical system is additionally provided with, the mechanical system being capable of the throwing of driving structure light
Emitter and the entirety of imaging device formation axially move horizontally and driven roll rotation along roll.
As further improvement of the utility model, the data transmission module is real by transmission means wirelessly or non-wirelessly
Existing imaging device and the signal of image processing and analysis system are transmitted.
The beneficial effects of the utility model are：The principle that the utility model is reflected based on structure light, passes through structured light
Then device measures reflected image change to reflect that tested region is rolled towards the effigurate structure light figure of roller surface projection tool
Roller surface light reflectance signature, so as to realize the roll dressing surface defect qualitative and quantitative such as spot, reticulate pattern, spiral lamination, the detection
System can realize full-automatic detection, and the detecting system has achievable quantitative measurment, and detection efficiency and accuracy rate are high
Feature, can effectively make up the quality and stability of the deficiency of artificial visual method, lifting roll dressing and Rolling Production.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Embodiment
Embodiment：A kind of roll dressing surface defects detection system, including structured light projector 1, imaging device 2, data
Transport module 3 and image processing and analysis system 4, the structured light projector 1 can have towards the projection of the tested surface of roll 5
The structure light figure of definite shape, imaging device 2 can to being reflected through roller surface after figure be imaged, imaging device 2 lead to
Cross data transmission module 3 and signal is transmitted in image processing and analysis system 4, image processing and analysis system 4 will can be received
To image information with itself be pre-stored standard picture information (be used for measurement result analyze reference sample reflective graphics can adopt
With polished or be ground and determine flawless roll specimen, or mirror surface luster measurement on-gauge plate used is consulted and used, or made
With original transmitted figure (when structured light projection instrument is as structured light projector 1)) it is compared and exports testing result.
The principle reflected based on structure light, has effigurate knot by structured light device towards the projection of the surface of roll 5
Structure light figure, then measures reflected image change to reflect the surface light reflection feature of tested region roll 5, thus realize spot,
The roll dressing surface defect qualitative and quantitative such as reticulate pattern, spiral lamination, the detecting system can realize full-automatic detection, and the inspection
Examining system, which has, can be achieved quantitative measurment, and the characteristics of detection efficiency and accuracy rate are high can effectively make up artificial visual method not
The quality and stability of foot, lifting roll dressing and Rolling Production.
The imaging device 2 is CCD or CMOS industrial cameras.
The structured light projector 1 is that can project coherent monochromatic figure or incoherent white light, the structure of monochromatic light figure
Light laser or structured light projection instrument.
Structured light projector 1 is provided with the first adjusting means, and the first adjusting means can adjust structured light projector 1 and project
The segment angle θ of structure light, the first adjusting means can be the focus control carried in structure structured light projector 1.
The second adjusting means and the 3rd adjusting means are additionally provided with, wherein the second adjusting means can adjust structured light projector
1 projection distance h1, the 3rd adjusting means can be adjusted between imaging device 2 and the surface projected graphics center of tested roll 5
Vertical range h2, changes the size of its projected graphics, the second regulation by the projection distance h1 of structured light projector 1 adjustment
Device can realize the projection distance h1 of structured light projector 1 adjustment by support, the elongate holes of longitudinal direction and adjustment screw,
The projection distance of structured light projector 1 can also be realized by rack and pinion engagement mechanism or sprocket wheel chain drive etc.
H1 adjustment, the 3rd adjusting means is identical with the second adjusting means structural principle, and the two can be using various distance regulation machines
Structure.
The transmitting light path central axis of structured light projector 1 is with the receiving light path central axis of imaging device 2 on projection
It is symmetrical in roller surface centre of figure, and the transmitting light path central axis of structured light projector 1 and the receiving light path center of imaging device 2
Setting angle α is formed in the middle of axis,
Angle α in the middle of the transmitting light path central axis of structured light projector 1 and the receiving light path central axis of imaging device 2
For 0-160 degree.
The 4th adjusting means is additionally provided with, the 4th adjusting means is capable of the mounting inclination angle degree ω of adjustment structure light projector
1 and the mounting inclination angle degree ω 2 and horizontal range d therebetween of imaging device, the 4th adjusting means includes horizontal direction
The strip hole of horizontal direction is set to realize structured light projector 1 and the level of imaging device 2 by bolt on the truss of extension, truss
The adjustment of distance or leading screw and nut mechanism, pinion and rack, sprocket wheel link chain mechanism etc. realize the tune of the two distance
The governor motions of mounting inclination angle degree ω 2 of section, structured light projector mounting inclination angle degree ω 1 and imaging device can be to turn
The mode being screwed after dynamic installation is realized, or is realized by way of gear engagement rotation.
Be additionally provided with mechanical system, the mechanical system can driving structure light projector 1 and imaging device 2 formation overall edge
Roll axially moves horizontally and driven roll rotation, and the horizontal mobile mechanism of mechanical system can be slided for setting level on truss
The mode of rail by promote i.e. can be achieved, can also by horizontal slide rail set leading screw and nut mechanism driven by motor,
Roll rotation can be realized by way of motor is driven by decelerator.
The transmission means that the data transmission module 3 passes through wireless (such as WIFI) or wired (such as GIGE, USB, CamLink)
Realize that imaging device 2 and the signal of image processing and analysis system 4 are transmitted.
The method detected using above-mentioned roll dressing surface defects detection system to roll dressing surface defect is as follows：
Step one：Imaging device 2 is demarcated；
Step 2：According to the tested size of roll 5 and defect type to be detected, determine the segment angle of structured light projector 1, throw
Penetrate apart from h1 and its transmitting light path central axis and the receiving light path central axis angle of imaging device 2；
Step 3：Segment angle, projection distance h1 and the inclination angle of adjustment structure light projector 1；
Step 4：Launched according to structured light projector in step 21 in light path central axis and the receiving light path of imaging device 2
The inclination angle of heart axis angle and structured light projector 1, determines the inclination angle of imaging device 2, according to imaging formula
(f：Lens focus, u：Object distance, v：At a distance of) and geometrical relationship calculates the imaging center of imaging device 2 and the tested surface of roll 5 is projected
Vertical range between centre of figure, and adjust the inclination angle of imaging device 2 and its between the tested surface projected graphics center of roll 5
Vertical range；
Step 5：Runtime and Survey Software corresponding module, according to the computer with image processing and analysis system 4
The shooting image situation of imaging device 2 shown in real time to the inclination angle of imaging device 2 and its with the tested surface projected graphics of roll 5
Vertical range between the heart be finely adjusted so that image clearly and make reflected image be in shooting image center；
Step 6：Operating measurement system and corresponding Survey Software, the computer with image processing and analysis system 4 pass through
The reflective graphics that imaging device 2 is photographed and its own pre-stored standard picture information (original transmitted figure or reference sample
Reflective graphics) comparative analysis draws qualitative and quantitative measurement results；
Step 7：Turned by corresponding mechanical system driving structure light projector 1 and the overall translation of imaging device 2 or roll
It is dynamic, roller surface different zones are detected.
Claims (10)
1. a kind of roll dressing surface defects detection system, it is characterised in that：Including structured light projector (1), imaging device
(2), data transmission module (3) and image processing and analysis system (4), the structured light projector (1) can roll towards tested
The effigurate structure light figure of roller (5) surface projection tool, imaging device can to being reflected through roller surface after figure carry out
Signal is transmitted in image processing and analysis system, image processing and analysis system by imaging, imaging device by data transmission module
The image information received and the standard picture information itself being pre-stored can be compared and export testing result by system.
2. roll dressing surface defects detection system according to claim 1, it is characterised in that：The imaging device is
CCD or CMOS industrial cameras.
3. roll dressing surface defects detection system according to claim 1, it is characterised in that：The structured light projector
For coherent monochromatic figure or incoherent white light, the structure light laser or structured light projection instrument of monochromatic light figure can be projected.
4. roll dressing surface defects detection system according to claim 1, it is characterised in that：Set in structured light projector
There is the first adjusting means, the first adjusting means can adjust the segment angle (θ) of structured light projector projective structure light.
5. roll dressing surface defects detection system according to claim 1, it is characterised in that：It is additionally provided with the second regulation dress
Put and the 3rd adjusting means, wherein the second adjusting means can adjust the projection distance (h1) of structured light projector, the 3rd regulation
Device can adjust the vertical range (h2) between imaging device and tested roller surface projected graphics center.
6. roll dressing surface defects detection system according to claim 1, it is characterised in that：The structured light projector
Transmitting light path central axis is symmetrical on being incident upon roller surface centre of figure with imaging device receiving light path central axis, and knot
Structure light projector, which is launched, forms setting angle (α) in the middle of light path central axis and imaging device receiving light path central axis.
7. roll dressing surface defects detection system according to claim 6, it is characterised in that：The structured light projector
It is 0-160 degree to launch angle in the middle of light path central axis and imaging device receiving light path central axis.
8. roll dressing surface defects detection system according to claim 6, it is characterised in that：It is additionally provided with the 4th regulation dress
Put, the installation that the 4th adjusting means is capable of the mounting inclination angle degree (ω 1) and imaging device of adjustment structure light projector is tilted
Angle (ω 2) and horizontal range (d) therebetween.
9. roll dressing surface defects detection system according to claim 7, it is characterised in that：It is additionally provided with mechanical system,
The mechanical system can driving structure light projector and imaging device formation entirety axially move horizontally and drive along roll
Roll rotation.
10. roll dressing surface defects detection system according to claim 1, it is characterised in that：The data transfer mould
Block realizes that imaging device and the signal of image processing and analysis system are transmitted by transmission means wirelessly or non-wirelessly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720229565.6U CN206523441U (en) | 2017-03-10 | 2017-03-10 | Roll dressing surface defects detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720229565.6U CN206523441U (en) | 2017-03-10 | 2017-03-10 | Roll dressing surface defects detection system |
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| Publication Number | Publication Date |
|---|---|
| CN206523441U true CN206523441U (en) | 2017-09-26 |
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ID=59903278
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720229565.6U Active CN206523441U (en) | 2017-03-10 | 2017-03-10 | Roll dressing surface defects detection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106814072A (en) * | 2017-03-10 | 2017-06-09 | 昆山华辰重机有限公司 | Roll dressing surface defects detection system and its detection method |
| CN108344751A (en) * | 2018-03-20 | 2018-07-31 | 湖南科创信息技术股份有限公司 | Plate of material shape defect detecting system and method based on multichannel light source |
-
2017
- 2017-03-10 CN CN201720229565.6U patent/CN206523441U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106814072A (en) * | 2017-03-10 | 2017-06-09 | 昆山华辰重机有限公司 | Roll dressing surface defects detection system and its detection method |
| CN108344751A (en) * | 2018-03-20 | 2018-07-31 | 湖南科创信息技术股份有限公司 | Plate of material shape defect detecting system and method based on multichannel light source |
| CN108344751B (en) * | 2018-03-20 | 2024-06-25 | 湖南科创信息技术股份有限公司 | Material plate shape defect detection system and method based on multichannel light source |
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Address after: 215337, Jiangsu Province, Suzhou City, Kunshan Province Zhou Town, Long Jing Jing Road No. 333 Patentee after: Huachen precision equipment (Kunshan) Limited by Share Ltd Address before: 215337, Jiangsu Province, Suzhou City, Kunshan Province Zhou Town, Long Jing Jing Road No. 333 Patentee before: Kunshan Huachen Heavy Machinery Co., Ltd. |