CN103196920A - System and method for automatically detecting defects of gem crystal - Google Patents
System and method for automatically detecting defects of gem crystal Download PDFInfo
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- CN103196920A CN103196920A CN2013101019903A CN201310101990A CN103196920A CN 103196920 A CN103196920 A CN 103196920A CN 2013101019903 A CN2013101019903 A CN 2013101019903A CN 201310101990 A CN201310101990 A CN 201310101990A CN 103196920 A CN103196920 A CN 103196920A
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Abstract
The invention discloses a system and a method for automatically detecting the defects of gem crystal; and the system comprises a liquid injection platform, a detection platform, a cleaning platform, a first liquid injection device, a height detection device, an image acquisition device, an optical imaging device, a second liquid injection device, a mechanical arm, an upper slide, a fixing device of the upper slide, an automatic scrubbing device, a control center and a processing computer. The system and the method have the beneficial effects that a charge coupled device (CCD) image sensor is used for acquiring image data, and then the acquired image is analyzed and computed by using a computer technology, so that the quality of a crystal bar can be judged, and the type and the position of the defect of the crystal bar are judged and correspondingly recorded; and therefore, the problems of low efficiency, a large amount of work load, manpower resource waste and severe detection environment in the existing crystal detection can be solved, the detection environment is improved, the performances of automation and intelligence of the detection system can be improved, and the span from manual detection to automatic detection can be realized; and the system and the method have the characteristics of being easy to operate and low in production cost and use cost.
Description
Technical field
The present invention relates to gem crystal defective automatic checkout system and method thereof, belong to crystal detection technique field.
Background technology
Mainly contain OHT(optical homogeneity technology at the sapphire sign of LED level at present) detection method and EPD(etch-pit density) detection method.Wherein the step that detects of OHT comprises and utilizes high-strength light test material crackle, bubble and impurity and detect lattice imperfection and low-angle boundary by polarized light again, utilize this method can carry out the division of grade accurately to sapphire, reduce the chip rejection situation that causes because of crystal defect to greatest extent, just detect before the cutting into slices, polish at crystal bar of the main benefit of this kind method, thereby kick out of defective crystal bar timely, and this method is easy to learn, to the utilization factor height of product.Another kind is used to such an extent that relatively extensively also be that the detection method of comparative maturity is the EPD(etch-pit density) detection method, the EPD analytic approach is a kind of destructive detection method, crystal structure and plane of crystal quality can be understood to a certain extent by this detection method, wafer can be obtained through the hole number of chemical etching rear surface by the EPD analytic approach.This detection method can detect the EPD number in the unit area.
Wherein the defective of EPD method is apparent, be exactly this method be a kind of destructive detection method, and be a kind of detection method of carrying out later in Sapphire Substrate result section, polishing, so just cause the raising of processing cost and the waste of material.By contrast, the OHT detection method more is better than the EPD analytic approach.But, even now, the OHT detection method still has its limitation and further improvements.Utilize the OHT method to bubble, smog, too big quality problems did not also appear in the detection of crackle and impurity defect substantially, and production efficiency yet is not too low, but utilizing polarized light to detect the difficulty relatively that just seems aspect the lattice quality defective, the personnel through long-term training generally are not easy to find defective, and the index-matching fluid that uses spreads upon on the crystal bar and is exposed in the air fully, make whole testing environment very pessimistic, though topmost problem is to detect crystal bar lattice imperfection is arranged, can not judge the particular location of defective accurately, this has brought difficulty just for further processing, thereby causes the waste on the material.Be exactly crystal bar more in addition before round as a ball and all must detect afterwards, so just the working strength that increases greatly causes inefficiency, and existing testing environment is abominable simultaneously, and the employee can directly contact with objectionable impurities, does not reach the production of Environmental Safety.
Summary of the invention
The object of the present invention is to provide gem crystal defective automatic checkout system and method thereof, can solve present crystal detect in efficient low, workload big, waste of human resource, the abominable problem of testing environment.
The objective of the invention is to be achieved through the following technical solutions: gem crystal defective automatic checkout system, it comprises the fluid injection platform, detection platform, cleaning platform, first priming device, height detecting device, image collecting device, optical imaging device, second priming device, mechanical arm, last slide and stationary installation thereof, automatic swab, control center and process computer, wherein, first priming device and last slide and stationary installation thereof are installed on the fluid injection platform, height detecting device, image collecting device and optical imaging device are installed in detection platform, second priming device and automatic swab are installed on the cleaning platform, first priming device, height detecting device, image collecting device, optical imaging device, second priming device, mechanical arm, last slide and stationary installation thereof, automatically the control signal end of swab and process computer links to each other respectively with control center by control line, the data output end of image collecting device links to each other with the data input pin of process computer, and detection platform is provided with the hairbrush that cleans the jewel crystal bar.
Described optical imaging device is by being installed in light source generator, the polarizer, analyzer, lens and the ccd sensor of installing successively on the detection platform.
It also comprises an extractor fan that covers fluid injection platform, detection platform and cleaning platform.
The gem crystal defective detects its method automatically, and it may further comprise the steps:
(1), the jewel crystal bar is placed on the fluid injection platform and installs firmly;
(2), first priming device carries out the fluid injection first time, and index-matching fluid is spread upon jewel crystal bar two ends in the mode of drop, increases the light transmission of jewel crystal bar;
(3), treat that fluid injection is finished after, mechanical arm is started working, and the jewel crystal bar is transported to detection platform;
(4), height detecting device begins the height of jewel crystal bar is detected, and the preset height that data pass to control center and jewel crystal bar wanted to contrast computing;
(5), first priming device highly adjusts according to detecting, and moves to preset height, carries out the fluid injection second time then;
(6), go up the slide stationary installation and highly move according to detecting, make slide be adsorbed on the upper surface of jewel crystal bar and cover the jewel crystal bar;
(7), open optical imaging device and image collecting device, optical imaging device and image collecting device flow to process computer with characterization data then according to highly carrying out the position adjustment and carrying out the collection of the characterization data of jewel crystal bar;
(8), process computer carries out analytical calculation according to the data of gathering, draw and show form;
(9), first priming device, last slide, optical imaging device and image collecting device reset;
(10), mechanical arm carries out second time work, and the jewel crystal bar is moved cleaning platform;
(11), the cleaning hairbrush on the cleaning platform is according to highly carrying out the position adjustment;
(12), second priming device starts working, and will inject hairbrush and moistening hairbrush except liquor;
(13), hairbrush rotation, swab is wiped the residual index-matching fluid in jewel crystal bar two ends automatically;
(13), hairbrush resets;
(15), mechanical arm works for the third time, the jewel crystal bar is shifted out;
(16), mechanical arm resets, and finishes one-time detection.
Described index-matching fluid is diiodomethane.
Beneficial effect of the present invention is: utilize ccd image sensor to carry out the collection of view data, the recycling computer technology is carried out analytical calculation to the image of gathering, thereby judge the quality of crystal bar and the type of defective, corresponding mark is also made in the position, solved present crystal detect in efficient low, workload is big, waste of human resource, the problem that testing environment is abominable, improved testing environment, robotization and the intelligent performance of detection system have been improved, realized the leap from manual to automatic detection, and had easy to operate, produce and the cheap characteristics of use cost.
Description of drawings
Fig. 1 is system principle diagram of the present invention;
Fig. 2 is the structural representation of optical imaging device of the present invention.
Wherein, 1-light source generator, the 2-polarizer, 3-analyzer, 4-lens, 5-CCD sensor, the jewel crystal bar that 6-is to be detected.
Embodiment
Further describe technical scheme of the present invention below in conjunction with accompanying drawing, but that claimed scope is not limited to is described.
As Fig. 1, gem crystal defective automatic checkout system, it comprises the fluid injection platform, detection platform, cleaning platform, first priming device, height detecting device, image collecting device, optical imaging device, second priming device, mechanical arm, last slide and stationary installation thereof, automatic swab, control center and process computer, wherein, first priming device and last slide and stationary installation thereof are installed on the fluid injection platform, height detecting device, image collecting device and optical imaging device are installed in detection platform, second priming device and automatic swab are installed on the cleaning platform, first priming device, height detecting device, image collecting device, optical imaging device, second priming device, mechanical arm, last slide and stationary installation thereof, automatically the control signal end of swab and process computer links to each other respectively with control center by control line, the data output end of image collecting device links to each other with the data input pin of process computer, and detection platform is provided with the hairbrush that cleans the jewel crystal bar.
As Fig. 2, described optical imaging device is by being installed in light source generator 1, the polarizer 2, analyzer 3, lens 4 and the ccd sensor of installing successively on the detection platform 5, jewel crystal bar 6 to be detected is placed on the polarizer 2 and analyzer 3, light source generator 1, the polarizer 2, analyzer 3 and lens 4 form a complete light path, and the distance of adjusting light source generator 1, the polarizer 2, analyzer 3 and lens 4 can allow more jewel crystal bar 6 image informations be delivered in the ccd sensor 5.
It also comprises an extractor fan that covers fluid injection platform, detection platform and cleaning platform, the totally enclosed detection system that adopts, good extractor fan has been installed, has been made index-matching fluid be unlikely to be diffused into the injury that causes in the air human body, realized the purpose of safety in production.
The gem crystal defective detects its method automatically, and it may further comprise the steps:
(1), the jewel crystal bar is placed on the fluid injection platform and installs firmly;
(2), first priming device carries out the fluid injection first time, index-matching fluid is spread upon jewel crystal bar two ends in the mode of drop, increase the light transmission of jewel crystal bar, what adopt is that the method for drop is smeared index-matching fluid, can better control applying amount, reduce the consumption that uses matching fluid and remove liquor, reduced production cost;
(3), treat that fluid injection is finished after, mechanical arm is started working, and the jewel crystal bar is transported to detection platform;
(4), the sensor on the height detecting device begins the height of jewel crystal bar is detected, and the preset height that data pass to control center and jewel crystal bar wanted to contrast computing;
(5), first priming device highly adjusts according to detecting, and moves to preset height, carries out the fluid injection second time then;
(6), go up the slide stationary installation and highly move according to detecting, make slide be adsorbed on the upper surface of jewel crystal bar and cover the jewel crystal bar;
(7), open optical imaging device and image collecting device, optical imaging device and image collecting device flow to process computer with characterization data then according to highly carrying out the position adjustment and carrying out the collection of the characterization data of jewel crystal bar;
(8), process computer carries out analytical calculation according to the data of gathering, draw and show form;
(9), first priming device, last slide, optical imaging device and image collecting device reset;
(10), mechanical arm carries out second time work, and the jewel crystal bar is moved cleaning platform;
(11), the cleaning hairbrush on the cleaning platform is according to highly carrying out the position adjustment;
(12), second priming device starts working, and will inject hairbrush and moistening hairbrush except liquor, except liquor is alcohol or else can cleans the liquid of index-matching fluid;
(13), hairbrush rotation, swab is wiped the residual index-matching fluid in jewel crystal bar two ends automatically;
(13), hairbrush resets;
(15), mechanical arm works for the third time, the jewel crystal bar is shifted out;
(16), mechanical arm resets, and finishes one-time detection.
More than each step all be under the commander of controller, to finish, so controller must be reliable and stable, the scheme that can select has single-chip microcomputer, FPGA, PLC at present.
Described index-matching fluid is diiodomethane.
The quality of control center's sequential directly has influence on operate as normal and the production efficiency of total system, and good sequential can make total system work tightr (time is shorter), stability higher (probability that is out of order is few).Main program design of becoming reconciled by reliable control chip solves in this part, wherein FPGA has obtained at aspects such as communication, Industry Control, data storage, Aero-Space, image processing, medical treatment using widely as the substitute of discreet logic gate device, and selecting this device for use is a kind of good selection as the controller of this project.
Image collecting device also is the core of whole project, the quality of image acquisition directly has influence on accuracy and the reliability of data, this part also involves driving and the communication issue of institute's use harvester, has only good drive system and unimpeded communicating by letter could guarantee that data can transmit and handle timely and effectively.Also be ripe can select for use ccd image sensor as harvester according to present industrial usefulness more.
The present invention has adopted full-automatic detection scheme, less demanding to the reviewer, can be with regard to energy work on duty after the training of short time, adopted the method for Computer Processing simultaneously, to need carry out twice detection (before round as a ball and after round as a ball) at present and reduce to once (before round as a ball), improve production efficiency, defective locations has accurately been located, avoided the waste of the material that cutting blindly causes and the increase of production process.
Claims (5)
1. gem crystal defective automatic checkout system, it is characterized in that: it comprises the fluid injection platform, detection platform, cleaning platform, first priming device, height detecting device, image collecting device, optical imaging device, second priming device, mechanical arm, last slide and stationary installation thereof, automatic swab, control center and process computer, wherein, first priming device and last slide and stationary installation thereof are installed on the fluid injection platform, height detecting device, image collecting device and optical imaging device are installed in detection platform, second priming device and automatic swab are installed on the cleaning platform, first priming device, height detecting device, image collecting device, optical imaging device, second priming device, mechanical arm, last slide and stationary installation thereof, automatically the control signal end of swab and process computer links to each other respectively with control center by control line, the data output end of image collecting device links to each other with the data input pin of process computer, and detection platform is provided with the hairbrush that cleans the jewel crystal bar.
2. gem crystal defective automatic checkout system according to claim 1 is characterized in that: described optical imaging device is by being installed in light source generator, the polarizer, analyzer, lens and the ccd sensor of installing successively on the detection platform.
3. gem crystal defective automatic checkout system according to claim 1, it is characterized in that: it also comprises an extractor fan that covers fluid injection platform, detection platform and cleaning platform.
4. the gem crystal defective detects its method automatically, it is characterized in that: it may further comprise the steps:
(1), the jewel crystal bar is placed on the fluid injection platform and installs firmly;
(2), first priming device carries out the fluid injection first time, and index-matching fluid is spread upon jewel crystal bar two ends in the mode of drop, increases the light transmission of jewel crystal bar;
(3), treat that fluid injection is finished after, mechanical arm is started working, and the jewel crystal bar is transported to detection platform;
(4), height detecting device begins the height of jewel crystal bar is detected, and the preset height that data pass to control center and jewel crystal bar wanted to contrast computing;
(5), first priming device highly adjusts according to detecting, and moves to preset height, carries out the fluid injection second time then;
(6), go up the slide stationary installation and highly move according to detecting, make slide be adsorbed on the upper surface of jewel crystal bar and cover the jewel crystal bar;
(7), open optical imaging device and image collecting device, optical imaging device and image collecting device flow to process computer with characterization data then according to highly carrying out the position adjustment and carrying out the collection of the characterization data of jewel crystal bar;
(8), process computer carries out analytical calculation according to the data of gathering, draw and show form;
(9), first priming device, last slide, optical imaging device and image collecting device reset;
(10), mechanical arm carries out second time work, and the jewel crystal bar is moved cleaning platform;
(11), the cleaning hairbrush on the cleaning platform is according to highly carrying out the position adjustment;
(12), second priming device starts working, and will inject hairbrush and moistening hairbrush except liquor;
(13), hairbrush rotation, swab is wiped the residual index-matching fluid in jewel crystal bar two ends automatically;
(13), hairbrush resets;
(15), mechanical arm works for the third time, the jewel crystal bar is shifted out;
(16), mechanical arm resets, and finishes one-time detection.
5. gem crystal defective according to claim 1 detects its method automatically, it is characterized in that: described index-matching fluid is diiodomethane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310101990.3A CN103196920B (en) | 2013-03-27 | 2013-03-27 | System and method for automatically detecting defects of gem crystal |
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| CN201310101990.3A CN103196920B (en) | 2013-03-27 | 2013-03-27 | System and method for automatically detecting defects of gem crystal |
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| CN103196920B CN103196920B (en) | 2015-06-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068012A (en) * | 2015-08-16 | 2015-11-18 | 昆山泰莱宏成传感技术有限公司 | Lead acid battery residual electric quantity sensor |
| CN105492893A (en) * | 2013-08-27 | 2016-04-13 | D.施华洛世奇两合公司 | Assembly for analyzing a light pattern caused by refraction and reflection at a precious stone |
| CN109374633A (en) * | 2018-11-13 | 2019-02-22 | 上海超硅半导体有限公司 | A kind of detection method of sapphire wafer defect |
| CN111198160A (en) * | 2020-02-14 | 2020-05-26 | 巢湖学院 | CCD image detection device and use method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6515738B1 (en) * | 1999-07-15 | 2003-02-04 | Mauboussin Successeur De Noury | Method of determining the authenticity and the geographical origin of gemstones such as beryls |
| JP2009229197A (en) * | 2008-03-21 | 2009-10-08 | Seiko Epson Corp | Linear defect detecting method and device |
| CN202404038U (en) * | 2011-12-21 | 2012-08-29 | 北京兆维电子(集团)有限责任公司 | PS (presensitized) plate surface detection system based on machine vision |
| CN202485627U (en) * | 2011-12-14 | 2012-10-10 | 华中科技大学 | Three-dimensional detection apparatus for integrated circuit pin |
| CN102788801A (en) * | 2012-08-14 | 2012-11-21 | 深圳先进技术研究院 | Online detection system and detection method thereof |
| CN202720184U (en) * | 2012-07-03 | 2013-02-06 | 苏州市昶锦光电有限公司 | Liquid crystal screen crack detection device |
| CN203249873U (en) * | 2013-03-27 | 2013-10-23 | 贵州蓝科睿思技术研发中心 | System for automatically detecting jewel crystal defects |
-
2013
- 2013-03-27 CN CN201310101990.3A patent/CN103196920B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6515738B1 (en) * | 1999-07-15 | 2003-02-04 | Mauboussin Successeur De Noury | Method of determining the authenticity and the geographical origin of gemstones such as beryls |
| JP2009229197A (en) * | 2008-03-21 | 2009-10-08 | Seiko Epson Corp | Linear defect detecting method and device |
| CN202485627U (en) * | 2011-12-14 | 2012-10-10 | 华中科技大学 | Three-dimensional detection apparatus for integrated circuit pin |
| CN202404038U (en) * | 2011-12-21 | 2012-08-29 | 北京兆维电子(集团)有限责任公司 | PS (presensitized) plate surface detection system based on machine vision |
| CN202720184U (en) * | 2012-07-03 | 2013-02-06 | 苏州市昶锦光电有限公司 | Liquid crystal screen crack detection device |
| CN102788801A (en) * | 2012-08-14 | 2012-11-21 | 深圳先进技术研究院 | Online detection system and detection method thereof |
| CN203249873U (en) * | 2013-03-27 | 2013-10-23 | 贵州蓝科睿思技术研发中心 | System for automatically detecting jewel crystal defects |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105492893A (en) * | 2013-08-27 | 2016-04-13 | D.施华洛世奇两合公司 | Assembly for analyzing a light pattern caused by refraction and reflection at a precious stone |
| CN105492893B (en) * | 2013-08-27 | 2019-04-16 | D.施华洛世奇两合公司 | For analyzing the device of light pattern caused by by reflecting and reflecting on jewel |
| CN105068012A (en) * | 2015-08-16 | 2015-11-18 | 昆山泰莱宏成传感技术有限公司 | Lead acid battery residual electric quantity sensor |
| CN109374633A (en) * | 2018-11-13 | 2019-02-22 | 上海超硅半导体有限公司 | A kind of detection method of sapphire wafer defect |
| CN111198160A (en) * | 2020-02-14 | 2020-05-26 | 巢湖学院 | CCD image detection device and use method thereof |
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| CN103196920B (en) | 2015-06-24 |
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