CN206725466U - Cover-plate glass defect detecting device based on multi-angle combination dark field imaging - Google Patents
Cover-plate glass defect detecting device based on multi-angle combination dark field imaging Download PDFInfo
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- CN206725466U CN206725466U CN201720420476.XU CN201720420476U CN206725466U CN 206725466 U CN206725466 U CN 206725466U CN 201720420476 U CN201720420476 U CN 201720420476U CN 206725466 U CN206725466 U CN 206725466U
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Abstract
The utility model discloses a kind of cover-plate glass defect detecting device based on multi-angle combination dark field imaging, belong to test technique automatic field, including linear array camera lens, line-scan digital camera, line-scan digital camera is connected to industrial computer, first, second fibre optical sensor of transmission mechanism shooting position both sides is connected with PLC, and PLC output end is connected to industrial computer；First, second has been arranged symmetrically above shooting position both sides and has highlighted condensation light source, and the three, the 4th highlighted condensation light sources formation full angle shootings have been arranged symmetrically in the lower section of shooting position and positioned at shooting position axis both sides.The utility model overcomes original detection device from single angle polishing, the problem of causing the defects of superfine small not to be imaged, and improves the recall rate of cover-plate glass defect.
Description
Technical field
Test technique automatic field is the utility model is related to, it is more particularly to a kind of based on multi-angle combination dark field imaging
Cover-plate glass defect detecting device.
Background technology
During the traditional pipelining of cover-plate glass, it is necessary to cover-plate glass with the presence or absence of point-like, wire and
The flaws such as chipping are detected, to judge whether glass is qualified.
At present, based on artificial detection, artificial detection has a drawback in that for the detection of cover-plate glass：The labor of testing staff
Fatigue resistance is larger, can not ensure to detect quality.In addition, testing staff, which is difficult that long-time is continual, carries out detection work, detection
Speed is slow, and detection efficiency is low.In addition, can also be detected using detection device, but in the process of cover-plate glass detection
In, to Product checking require it is very high, it is desirable to accuracy of detection need to reach 0.01mm ~ 0.02mm.In industry, cover-plate glass is examined
Measurement equipment is the very high equipment of generally acknowledged technology barriers.
Existing detection device is often acquired with bright field or dark field to the defects of cover-plate glass.But due to adopting
With single angle polishing so that it is superfine small the defects of can not be imaged, this is similar with human eye detection, is required for entering under multiple angles
Row observation, could find defect.In addition, diffusing reflection of the imaging of dark field dependent on fault location so that for some angle
The light of incident light to camera lens has certain contingency, so especially small wound possibly can not be imaged, even if wound
Oral reflex small part light, because light source is not bright enough, contrast is inadequate, imaging also unobvious.Therefore, current detection device
The defects of all superfine small can not be collected, recall rate is undesirable.
Utility model content
The purpose of this utility model is to provide a kind of cover-plate glass defect inspection based on multi-angle combination dark field imaging
Device is surveyed, to solve the problems, such as that existing cover-plate glass defects detection accuracy is low.
To realize object above, the technical solution adopted in the utility model is：There is provided a kind of based on multi-angle combination scotopia
The cover-plate glass defect detecting device of field imaging, the device include：Towards the linear array camera lens of transmission mechanism shooting position, position is shot
Surface is provided with is connected to industrial computer, transmission mechanism shooting position two with the matching used line-scan digital camera of linear array camera lens, line-scan digital camera
Side is respectively arranged with first, second fibre optical sensor, and first, second fibre optical sensor is connected with the input of PLC,
The output end of PLC is connected to industrial computer；
It is high that first, second has been arranged symmetrically between shooting position, linear array camera lens and above shooting position axis both sides
Bright condensation light source, the three, the 4th highlighted condensation light sources, the three, the 4th highlighted condensation light sources and shooting are arranged symmetrically in lower section
Angle between the axis of position is respectively less than first, second highlighted condensation light source and shoots the angle between the axis of position.
Further, transmission mechanism includes the disk roller that multiple horizontal parallels are set, and is smaller than 10mm between each disk roller.
Further, the device also includes being arranged on the positioning centring element before transmission mechanism shooting position.
Further, transmission mechanism shooting position is made up of the disk roller A and disk roller B being spaced more than 10mm.
Further, the scope of the angle between first, second highlighted condensation light source and shooting position axis is 50 ~ 60
Degree, the three, the 4th highlighted condensation light sources and the scope for shooting the angle between the axis of position are 0 ~ 30 degree.
Further, the device is additionally included in the Xelminator that transmission mechanism feeding port C upper and lowers are set respectively.
Further, the device also includes the suctorial manipulator of band being connected with PLC.
Further, it is provided with fresnel prism before first, second highlighted condensation light source.
Further, the device also includes the input equipment and output equipment being connected with industrial computer.
Further, the disk roller for forming transmission mechanism is to keep away dirt disk roller.
Compared with prior art, there is following technique effect in the utility model：The utility model in transmission mechanism by clapping
The highlighted condensation light source that is symmetrically arranged above acting as regent carries out low angle irradiation, the angle of simulation people's sight glass surface tiny defect
Degree, while the highlighted condensation light source progress high angle irradiation that is symmetrically arranged below transmission mechanism, are arranged above shooting position
Low angle light source supplemented, formed global illuminating, overcome original detection device from single angle polishing, cause pole
The problem of the defects of tiny can not be imaged, improve the recall rate of cover-plate glass defect.Meanwhile upper and lower two groups of light sources are using highlighted
Condensation light source, increase the intensity of incident light so that superfine small wound can also be substantially imaged, and further improve cover plate
The accuracy of glass defect detection.
Brief description of the drawings
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail：
Fig. 1 is a kind of cover-plate glass defect inspection based on multi-angle combination dark field imaging in the embodiment of the utility model one
Survey the structural representation of device.
Embodiment
In order to illustrate further feature of the present utility model, refer to below in connection with it is of the present utility model detailed description with
Accompanying drawing.Institute's accompanying drawing is only for reference and purposes of discussion, is not used for being any limitation as the scope of protection of the utility model.
As shown in figure 1, present embodiments provide a kind of cover-plate glass defect inspection based on multi-angle combination dark field imaging
Device is surveyed, including：The linear array camera lens 20 of position is shot towards transmission mechanism 10, line-scan digital camera 30 is connected to industrial computer 40, shoots position
Surface be provided with line-scan digital camera 30 matching used with linear array camera lens 20, transmission mechanism 10 shoots position both sides and is respectively arranged with the
First, the second fibre optical sensor 11,12, first, second 11,12 input with PLC 50 of fibre optical sensor are connected,
The output end of PLC 50 is connected to industrial computer 40；
It is highlighted that first, second has been arranged symmetrically between shooting position, linear array camera lens 20 and positioned at shooting position axis both sides
Condensation light source 60,70, the three, the 4th highlighted optically focused are arranged symmetrically in the lower section of shooting position and positioned at shooting position axis both sides
It is high that light source 80,90, the three, the 4th highlighted condensation light sources 80,90 and the angle shot between the axis of position are respectively less than first, second
Angle between bright condensation light source 60,70 and shooting position axis.
Wherein, transmission mechanism 10 is used to transmit cover-plate glass, transmission mechanism 10 shoot the forward and backward side frame in position be provided with first, the
Two fibre optical sensors 11,12, for first, second fibre optical sensor 11,12 between feeding port C and feed opening D, its effect is to sentence
Whether disconnected cover-plate glass reaches, leaves camera site, and when cover-plate glass reaches, leaves camera site, sends a signal to PLC
Controller 50.Then PLC 50 sends a signal to line-scan digital camera 30 to industrial computer 40, in first, second highlighted optically focused light
In the environment of source 60,70 and the three, the 4th highlights the multi-angle light source irradiation that condensation light source 80,90 provides, line-scan digital camera 30
IMAQ is carried out to the cover-plate glass at shooting position by linear array camera lens 20.Image processing program in industrial computer 40, docking
The cover-plate glass image received is analyzed, and finds out flaw, the defect of subject image, and the tolerance model of the permission set with user
Enclose and contrasted, judge whether current cover-plate glass is certified products.
In the present embodiment, in order to ensure sufficiently strong light intensity, in shooting, position is left and right is symmetrical arranged highlighted condensation light source,
Ensure the multi-angle incident light on shooting line, left and right symmetrically arranged one group of light source compensate for shooting on position below shooting position
The deficiency of the angle of the one group of light source just set, form global illuminating.The imaging effect for enhancing defect is arranged such that,
The contrast of defect in imaging is greatly enhanced simultaneously.
Further, transmission mechanism 10 includes the disk roller that multiple horizontal parallels are set, and is smaller than between each disk roller
10mm.Wherein, the effect less than 10mm that spacing is set is to ensure the stability of cover-plate glass transmission, ensures lid as far as possible
Glass sheet do not shake in transmit process, is non-slip, the skew of position does not occur, so as to ensure that the authenticity of imaging and accurate
Degree.Simultaneously as the gap of certain distance between parallel disk roller be present, cause linear array camera lens 20 in shooting not by carrier just
The interference of background, industrial computer 40 can be relatively easy to separating objects and carrier when the image to collection is handled
Background.
Further, the device also includes being arranged on the positioning centring element 13 before the shooting of transport mechanism 10 position.Wherein
Position centring element 13 can mounted in pairs disk roller face, lower roll wheel face on the feeding port C of transmission mechanism 10, to adjust feeding port
The position of cover-plate glass at C so that cover-plate glass moves to the underface of line-scan digital camera 30 so that linear array camera lens 20 is shot
Object be located at the center of image.
Further, transmission mechanism 10 shoots position and is made up of the disk roller A and disk roller B being spaced more than 10mm.Wherein, due to clapping
Act as regent disk roller A and the needs of the oblique backlight of disk roller B lower roll wheel faces, the spacing between disk roller A and disk roller B are traditionally arranged to be 20mm, line
Array camera 30 and linear array camera lens 20 set the surface with disk roller A, B axis.
Further, the model of the angle between first, second described highlighted condensation light source 60,70 and shooting position axis
Enclose for 50 ~ 60 degree, the three, the 4th highlighted condensation light sources 80,90 and the scope for shooting the angle between the axis of position are 0 ~ 30 degree.
Wherein, the axis for shooting position is disk roller A, B axis, above shooting position it is left and right be arranged symmetrically it is first, second highlighted
The luminous width of condensation light source 60,70 is about 30mm, the phenanthrene set respectively before first, second highlighted condensation light source 60,70
Nie Er prisms, the light that can send light source are polymerized to 5mm width, which forms the incident light of certain angle scope, increased simultaneously
The strong light intensity of shooting position.
The left and right symmetrically arranged one group highlighted condensation light source below shooting position, according to most light all can by reflection and
Projected away with angle, if running into defect wound, small part transmitted light reflection phase modifier, defect speck is formed, to top one
The highlighted condensation light source of group is supplemented, and forms global illuminating.
It should be noted that can also add the other light sources such as line source in the present embodiment, the setting angle of light source also may be used
With regulation, to gather the view data under multi-angle, more illumination conditions, and a variety of view data are merged.
Further, the device be additionally included in the feeding port C upper rollers wheel face of transmission mechanism 10, lower roll wheel face set respectively it is quiet
Electric arrester 14.Effect is that the dust on the upper and lower surface of cover-plate glass is purged, on the upper and lower surface of cover-plate glass
Dust pollution is preferably minimized as far as possible, reduces interference of the dust to IMAQ.
Further, the disk roller for forming the transmission mechanism 10 is to keep away dirt disk roller.Here, disk roller material itself is antistatic
Dirt disk roller is kept away, the upper and lower surface of cover-plate glass can be avoided to be stained with dust.Vision system is prevented to be mistaken for other point-like, line defect,
The detection time of system is greatly promoted, reduces the False Rate of system.
Further, the device also includes the suctorial manipulator of band being connected with PLC 50.Wherein, industry control is worked as
Machine 40 detects that industrial computer 40 sends corresponding signal to PLC 50 when having flaw on the cover-plate glass on shooting position,
PLC 50, which triggers, takes faulty materials to charging tray away with suctorial manipulator, and certified products flow to next station.
Further, the device also includes the input equipment and output equipment being connected with industrial computer 40.Wherein, input equipment
Including keyboard and mouse.Output equipment includes display screen.In practical operation, operating personnel can be by mouse and keyboard to inspection
Operated during survey, testing result is shown by display screen.Personnel easy to operation directly observe testing result.
It should be noted that the transport mechanism 10 for being used to transmit cover-plate glass in the present embodiment has short circuit, overload, owes electricity
The safeguard measures such as pressure, can be docked with actual production streamline, can be to cover-plate glass when putting into actual production pile line operation
Defect is detected in real time, and accuracy of detection is high, detection speed is fast.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (10)
- A kind of 1. cover-plate glass defect detecting device based on multi-angle combination dark field imaging, it is characterised in that：Including towards Transmission mechanism（10）Shoot the linear array camera lens of position（20）, the surface for shooting position is provided with and linear array camera lens（20）Matching used line Array camera（30）, line-scan digital camera（30）It is connected to industrial computer（40）, transmission mechanism（10）Shooting position both sides are respectively arranged with first, Second fibre optical sensor（11、12）, first, second fibre optical sensor（11、12）And PLC（50）Input connect Connect, PLC（50）Output end be connected to industrial computer（40）；In shooting position, linear array camera lens（20）Between and above shooting position axis both sides to be arranged symmetrically first, second high Bright condensation light source（60、70）, the three, the 4th highlighted condensation light sources have been arranged symmetrically in lower section（80、90）, the three, the 4th is highlighted Condensation light source（80、90）Angle between shooting position axis is respectively less than first, second highlighted condensation light source（60、70）With bat The angle to act as regent between axis.
- 2. device as claimed in claim 1, it is characterised in that described transmission mechanism（10）Set including multiple horizontal parallels Disk roller, be smaller than 10mm between each disk roller.
- 3. device as claimed in claim 1 or 2, it is characterised in that also include being arranged on transmission mechanism（10）Before shooting position Positioning centring element（13）.
- 4. device as claimed in claim 2, it is characterised in that described transmission mechanism（10）Shooting position is more than 10mm by interval Disk roller A and disk roller B composition.
- 5. device as claimed in claim 2, it is characterised in that the highlighted condensation light source of described first, second（60、70）With bat The scope of the angle to act as regent between axis is 50 ~ 60 degree, and the three, the 4th highlight condensation light sources（80、90）With shooting position axis The scope of angle between line is 0 ~ 30 degree.
- 6. device as claimed in claim 3, it is characterised in that in described first, second highlighted condensation light source（60、70）Before It is provided with fresnel prism.
- 7. device as claimed in claim 3, it is characterised in that be additionally included in transmission mechanism（10）Feeding port C upper rollers wheel face, under The Xelminator that disk roller face side is set respectively（14）.
- 8. device as claimed in claim 3, it is characterised in that form the transmission mechanism（10）Disk roller to keep away dirt disk roller.
- 9. device as claimed in claim 3, in addition to and PLC（50）The suctorial manipulator of band of connection.
- 10. device as claimed in claim 3, it is characterised in that also include and industrial computer（40）The input equipment of connection and defeated Go out equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720420476.XU CN206725466U (en) | 2017-04-20 | 2017-04-20 | Cover-plate glass defect detecting device based on multi-angle combination dark field imaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720420476.XU CN206725466U (en) | 2017-04-20 | 2017-04-20 | Cover-plate glass defect detecting device based on multi-angle combination dark field imaging |
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| CN206725466U true CN206725466U (en) | 2017-12-08 |
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| CN201720420476.XU Active CN206725466U (en) | 2017-04-20 | 2017-04-20 | Cover-plate glass defect detecting device based on multi-angle combination dark field imaging |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362713A (en) * | 2018-05-11 | 2018-08-03 | 中科慧远视觉技术（洛阳）有限公司 | A kind of optical detection imaging system |
| CN108872246A (en) * | 2018-05-29 | 2018-11-23 | 湖南科创信息技术股份有限公司 | Face sheet material regards planar defect detection system entirely |
| CN108956628A (en) * | 2018-07-27 | 2018-12-07 | 苏州高视科技有限公司 | Plastic cover plate defect imaging detection system |
| CN109525840A (en) * | 2018-12-18 | 2019-03-26 | 凌云光技术集团有限责任公司 | The detection method of minor defect on a kind of imager chip |
| CN109855672A (en) * | 2019-04-25 | 2019-06-07 | 佛山市南海区广工大数控装备协同创新研究院 | A kind of band chamfering radian glass plate automatic detection device |
| CN109900723A (en) * | 2019-04-26 | 2019-06-18 | 李配灯 | Glass surface defects detection method and device |
| CN110987951A (en) * | 2019-12-25 | 2020-04-10 | 苏州伟信奥图智能科技有限公司 | Method for detecting surface defects of moving object |
| CN111323371A (en) * | 2020-04-10 | 2020-06-23 | 深圳中科飞测科技有限公司 | Optical detection system and optical detection method |
| CN112255246A (en) * | 2020-08-31 | 2021-01-22 | 中国科学院合肥物质科学研究院 | Novel optical imaging system and method for detecting surface defects of lithium battery pole plate |
| CN112595727A (en) * | 2021-03-01 | 2021-04-02 | 常州微亿智造科技有限公司 | Imaging system and detection method for detecting defects of ink glass of rear cover plate of mobile phone |
| CN112763462A (en) * | 2020-12-31 | 2021-05-07 | 宋凯 | Substrate glass light transmittance detection equipment and substrate glass preparation process |
| CN112763503A (en) * | 2020-12-24 | 2021-05-07 | 山西大数据产业发展有限公司 | High-grade cold-rolled silicon steel hole detection system based on machine vision |
| CN113245241A (en) * | 2021-06-17 | 2021-08-13 | 苏州中科行智智能科技有限公司 | Glass slide defect detection method based on machine vision |
| CN114354621A (en) * | 2021-12-29 | 2022-04-15 | 广州德志金属制品有限公司 | Method and system for automatically detecting product appearance |
| CN114354621B (en) * | 2021-12-29 | 2024-04-19 | 广州德志金属制品有限公司 | Method and system for automatically detecting product appearance |
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- 2017-04-20 CN CN201720420476.XU patent/CN206725466U/en active Active
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362713A (en) * | 2018-05-11 | 2018-08-03 | 中科慧远视觉技术（洛阳）有限公司 | A kind of optical detection imaging system |
| CN108872246A (en) * | 2018-05-29 | 2018-11-23 | 湖南科创信息技术股份有限公司 | Face sheet material regards planar defect detection system entirely |
| CN108956628A (en) * | 2018-07-27 | 2018-12-07 | 苏州高视科技有限公司 | Plastic cover plate defect imaging detection system |
| CN108956628B (en) * | 2018-07-27 | 2024-04-05 | 高视科技(苏州)股份有限公司 | Plastic cover plate defect imaging detection system |
| CN109525840B (en) * | 2018-12-18 | 2021-04-09 | 凌云光技术股份有限公司 | Method for detecting weak defects on imaging chip |
| CN109525840A (en) * | 2018-12-18 | 2019-03-26 | 凌云光技术集团有限责任公司 | The detection method of minor defect on a kind of imager chip |
| CN109855672A (en) * | 2019-04-25 | 2019-06-07 | 佛山市南海区广工大数控装备协同创新研究院 | A kind of band chamfering radian glass plate automatic detection device |
| CN109900723A (en) * | 2019-04-26 | 2019-06-18 | 李配灯 | Glass surface defects detection method and device |
| CN110987951A (en) * | 2019-12-25 | 2020-04-10 | 苏州伟信奥图智能科技有限公司 | Method for detecting surface defects of moving object |
| CN111323371A (en) * | 2020-04-10 | 2020-06-23 | 深圳中科飞测科技有限公司 | Optical detection system and optical detection method |
| CN112255246A (en) * | 2020-08-31 | 2021-01-22 | 中国科学院合肥物质科学研究院 | Novel optical imaging system and method for detecting surface defects of lithium battery pole plate |
| CN112763503A (en) * | 2020-12-24 | 2021-05-07 | 山西大数据产业发展有限公司 | High-grade cold-rolled silicon steel hole detection system based on machine vision |
| CN112763462A (en) * | 2020-12-31 | 2021-05-07 | 宋凯 | Substrate glass light transmittance detection equipment and substrate glass preparation process |
| CN112595727A (en) * | 2021-03-01 | 2021-04-02 | 常州微亿智造科技有限公司 | Imaging system and detection method for detecting defects of ink glass of rear cover plate of mobile phone |
| CN113245241A (en) * | 2021-06-17 | 2021-08-13 | 苏州中科行智智能科技有限公司 | Glass slide defect detection method based on machine vision |
| CN113245241B (en) * | 2021-06-17 | 2022-08-12 | 苏州中科行智智能科技有限公司 | Glass slide defect detection method based on machine vision |
| CN114354621A (en) * | 2021-12-29 | 2022-04-15 | 广州德志金属制品有限公司 | Method and system for automatically detecting product appearance |
| CN114354621B (en) * | 2021-12-29 | 2024-04-19 | 广州德志金属制品有限公司 | Method and system for automatically detecting product appearance |
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Effective date of registration: 20191230 Address after: 201207 Shanghai City, Pudong New Area Chinese (Shanghai) free trade zone fanchun Road No. 400 Building 1 layer 3 Patentee after: Shanghai lintu Intelligent Technology Co.,Ltd. Address before: 201203 room 212, building 2, No. 1690, Cailun Road, Pudong New Area, Pudong New Area, Shanghai Patentee before: TUNICORN INFORMATION TECHNOLOGY (SHANGHAI) CO.,LTD. |
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Denomination of utility model: Glass cover plate defect detecting device based on formation of image of multi -angle combination dark field Effective date of registration: 20200622 Granted publication date: 20171208 Pledgee: Silicon Valley Bank Co.,Ltd. Pledgor: Shanghai lintu Intelligent Technology Co.,Ltd. Registration number: Y2020310000030 |
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Date of cancellation: 20230727 Granted publication date: 20171208 Pledgee: Silicon Valley Bank Co.,Ltd. Pledgor: Shanghai lintu Intelligent Technology Co.,Ltd. Registration number: Y2020310000030 |
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Effective date of registration: 20230811 Address after: No. 305-2, Building A3, Innovation Industrial Park, No. 800, West Wangjiang Road, High tech Zone, Hefei City, Anhui Province, 230000 Patentee after: HEFEI LINTU INFORMATION TECHNOLOGY CO.,LTD. Address before: 201207 Pudong New Area, Shanghai, China (Shanghai) free trade trial area, No. 3, 1 1, Fang Chun road. Patentee before: Shanghai lintu Intelligent Technology Co.,Ltd. |
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