CN101699127A - Light source for detecting and automatic detection equipment - Google Patents
Light source for detecting and automatic detection equipment Download PDFInfo
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- CN101699127A CN101699127A CN200910035687A CN200910035687A CN101699127A CN 101699127 A CN101699127 A CN 101699127A CN 200910035687 A CN200910035687 A CN 200910035687A CN 200910035687 A CN200910035687 A CN 200910035687A CN 101699127 A CN101699127 A CN 101699127A
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Abstract
The invention discloses a light source for detecting and automatic detection equipment, wherein the automatic detection equipment is used for the detection of tin soldering, which comprises a camera (1), a light source around the camera (1), a support table positioned below the camera (1) and the light source, and a computer for image contrast. The light source is a four-color circular light source which respectively is at least one while light source (2), a plurality of red light sources (3), a plurality of green light sources (4) and a plurality of blue light sources (5), which are sequentially arranged from top to bottom; incident angles of the each circular light source are larger than those of the adjacent circular light sources positioned above and are less than those of the adjacent circular light sources positioned below; the cross section of the light source for detecting is arc; and the distances among the each circular light source are equal. The invention leads the illumination to have no shadows and exactly judges welding spots.
Description
Technical field
The present invention relates to a kind of test light source and automatic checkout equipment, especially relate to a kind of test light source and automatic checkout equipment that is used to detect the soldering solder joint.
Background technology
The final operation of soldering is to check, because there is defective in the soldering solder joint, so need butt welding point inspection after production is finished, the inspection of welding roughly has two kinds: the one, check before the weldering, and check promptly whether mother metal surface, scolder, scaling powder etc. satisfy suitable welding condition; The 2nd, the postwelding inspection checks promptly whether welding is infallible, and unjointed defective is arranged.The postwelding inspection not only can be found all defectives by narrow examination, guarantee the quality of shipment product, and can in time find large batch of defective products, stop follow-up bad lasting generation, the most important thing is to find fast and effectively at the reason that defective takes place to the analysis of postwelding defective products, so that take corresponding precautionary measures, improve the yield of subsequent production.
The inspection method of solder joint is divided into nondestructive inspection and destructive inspection, and the method for nondestructive inspection is mainly visual examination at present.The method of visual examination is a kind of for to use the visual method inspection by the inspector, this method is lost time, waste of manpower, another kind are to use automatic checkout equipment to catch the image of solder joint, and the image of butt welding point is discerned also and characteristic image compares the quality of judging solder joint.
Under the prior art, automatic checkout equipment exists butt welding point to judge inaccurate problem, because the uneven illumination of solder joint, so the picture catching of butt welding point is inaccurate, for normal solder joint, constant error is judged to many welderings or few weldering; Solder joint for many welderings or few weldering, often be judged as normal solder joint, cause the product short circuit or open circuit, can't realize normal function, wrongheaded defective products is put into the yield that subsequent production not only influences subsequent technique, and can cause the finished product defective in time to detect for the product of few weldering, the quality of finished instability influences the goodwill of company.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of illumination shadow-free that makes, the test light source of solder joint accuracy of judgement.The present invention also aims to provide a kind of automatic checkout equipment that is equipped with above-mentioned test light source.
For realizing above-mentioned first purpose, the invention provides a kind of test light source, light source is 4 colour circle shape light sources, be respectively at least one white light source that is arranged in order from top to bottom, a plurality of red light source, a plurality of green light source, a plurality of blue-light source, the incidence angle of each ring-type light source is greater than the incidence angle of the adjacent annular light source that is positioned at the top and less than the incidence angle of the adjacent annular light source that is positioned at the below, the shape of cross section of test light source is an arc, and spacing equates between each ring-type light source.
More excellent, the shaft core position of white light source, red light source, green light source, blue-light source overlaps, behind the axis coinciding of each annular light source, the angle that only needs to adjust each annular light source just can make each annular light source project identical position and coincidence, is convenient to carry out the detection of target.
More excellent, light source is a led light source, and the led light source volume is little, and structure is flexible, is convenient to the looping light source, also is convenient to adjust.
This use is novel also to provide a kind of automatic checkout equipment that uses above-mentioned test light source, be used for the detection of soldering, it comprises camera, light source around camera, be positioned at the plummer of camera and light source below, be used to carry out the computer of image comparison, light source is 4 colour circle shape light sources, be respectively at least one white light source that is arranged in order from top to bottom, a plurality of red light sources, a plurality of green light sources, a plurality of blue-light sources, the incidence angle of each ring-type light source is greater than the incidence angle of the adjacent annular light source that is positioned at the top and less than the incidence angle of the adjacent annular light source that is positioned at the below, the shape of cross section of light source is an arc, and spacing equates between each ring-type light source.
More excellent, the shaft core position of white light source, red light source, green light source, blue-light source overlaps, behind the axis coinciding of each annular light source, the angle that only needs to adjust each annular light source just can make each annular light source project the identical position and the coincidence of plummer, is convenient to the target object on the plummer is detected.
More excellent, light source is a led light source, and the led light source volume is little, and structure is flexible, is convenient to the looping light source, also is convenient to adjust, and can also carry out the arrangement of light source according to the inner space of automatic checkout equipment.
More excellent, plummer also comprises an automatic conveying device that is used for transmitting automatically detected article, be provided with automatic conveying device after plummer can move voluntarily, and can dock with the equipment of upstream and downstream, be convenient to the automation of production process.
The beneficial effect of test light source of the present invention and automatic checkout equipment is: 1, use four color light source to arrange and shine, emergent light is stable; 2, arc is evenly distributed at interval for each light source, has guaranteed the solder joint shadow-free, has promptly guaranteed image quality; 3, each light source is evenly distributed at interval, and light source heat radiation is even, has stablized the service life of light source.
Description of drawings
Fig. 1 is the structural representation of test light source of the present invention;
Fig. 2 is the structural representation of automatic checkout equipment of the present invention;
Fig. 3 is an automatic checkout equipment operation principle schematic diagram of the present invention.
Among the figure
The 1-camera, 2-white light source, 3-red light source, 4-green light source, 5-blue-light source, 6-PCB.
The specific embodiment
Below in conjunction with accompanying drawing, specify the present invention.
Be illustrated in figure 1 as the structural representation of test light source of the present invention, a kind of test light source, light source is 4 colour circle shape light sources, 4 colour circle shape light sources are combined respectively by led light source of all kinds, 4 colour circle shape light sources are respectively the shaft core position coincidence, be respectively 1 white light source that is arranged in order from top to bottom, 7 red light sources, 5 green light sources, 5 blue-light sources, behind the axis coinciding of each annular light source, the angle that only needs to adjust each annular light source just can make each annular light source project identical position and coincidence, be convenient to carry out the detection of target, the incidence angle of each ring-type light source is greater than the incidence angle of the adjacent light source that is positioned at the top and less than the incidence angle of the adjacent light source that is positioned at the below, the shape of cross section of test light source is an arc,, spacing equates between each annular light source.
Be illustrated in figure 2 as the structural representation of automatic checkout equipment of the present invention, a kind of automatic checkout equipment, be used for the detection of soldering, it comprises camera 1, light source around camera 1, be positioned at the plummer 8 of camera 1 and light source below, be used to carry out the computer of image comparison, light source is 4 colour circle shape light sources, 4 colour circle shape light sources are combined respectively by led light source of all kinds, 4 colour circle shape light sources are respectively, be respectively at least 1 white light source that is arranged in order from top to bottom, 7 red light sources, 5 green light sources, 5 blue-light sources, behind the axis coinciding of each annular light source, the angle that only needs to adjust each annular light source just can make each annular light source project identical position and coincidence, be convenient to carry out the detection of target, the incidence angle of each ring-type light source is greater than the incidence angle of the adjacent light source that is positioned at the top and less than the incidence angle of the adjacent light source that is positioned at the below, the shape of cross section of light source is an arc, and spacing equates between each annular light source.
Plummer 8 also comprises an automatic conveying device that is used for transmitting automatically detected article, plummer can move voluntarily after being provided with automatic conveying device, and can dock with the equipment of upstream and downstream, receiving the PCB6 that does not detect from the upstream detects, the PCB6 that has detected is transported to the downstream, so that continue to produce, make whole flow process carry out automation fully.
The operation principle of this automatic checkout equipment is as follows:
As shown in Figure 3, dual judgment mechanism is adopted in the detection of present embodiment butt welding point 7, first heavily is judged as the image of catching solder joint 7, compare and then differentiate solder joint 7 whether have many welderings or few weldering with the characteristic image in the computer, when catching image, the shade regular meeting of image is mistaken for the area of solder joint, cause the area of solder joint 7 extended, the misjudgment of butt welding point 7, present embodiment adopts the uniform light source arrangement of spacing that target is carried out around irradiation, guaranteed that solder joint 7 illumination everywhere is identical, just guaranteed that also can there be shade in solder joint 7; Second heavily is judged as element spacing is judged, when detecting the pcb board figure, all lines are end points with the solder joint, each pin is good the isolation, interelement is uniformly at interval, if pcb board has many welderings, few weldering or foreign matters, then the image that captures of camera 1 can show inhomogeneous, computer-made decision this moment abnormal welding; The dual judgment mechanism of solder joint 7 only takes the mode of image comparison to compare the degree of accuracy that can obviously improve judgement with traditional automatic checkout equipment butt welding point 7.
Below only be specific embodiments of the invention, any those skilled in the art can think variation all drop within protection scope of the present invention.
Claims (7)
1. test light source, it is characterized in that: described light source is 4 colour circle shape light sources, be respectively at least one white light source (2) that is arranged in order from top to bottom, a plurality of red light source (3), a plurality of green light source (4), a plurality of blue-light source (5), the incidence angle of each described ring-type light source is greater than the incidence angle of the adjacent described annular light source that is positioned at the top and less than the incidence angle of the adjacent described annular light source that is positioned at the below, the shape of cross section of described test light source is an arc, and spacing equates between each described ring-type light source.
2. test light source according to claim 1 is characterized in that: the shaft core position of described white light source (2), red light source (3), green light source (4), blue-light source (5) overlaps.
3. a kind of test light source according to claim 1 is characterized in that: described light source is a led light source.
4. automatic checkout equipment that uses a kind of test light source as claimed in claim 1, be used for the detection of soldering solder joint, it comprises camera (1), be surrounded on the light source of described camera (1), be positioned at the plummer of described camera (1) and light source below, be used to carry out the computer of image recognition and contrast, it is characterized in that: described light source is 4 colour circle shape light sources, be respectively at least one white light source (2) that is arranged in order from top to bottom, a plurality of red light sources (3), a plurality of green light sources (4), a plurality of blue-light sources (5), the incidence angle of each described ring-type light source is greater than the incidence angle of the adjacent described annular light source that is positioned at the top and less than the incidence angle of the adjacent described annular light source that is positioned at the below, the shape of cross section of described light source is an arc, and spacing equates between each described ring-type light source.
5. a kind of automatic checkout equipment according to claim 4 is characterized in that: the shaft core position of described white light source (2), red light source (3), green light source (4), blue-light source (5) overlaps.
6. a kind of automatic checkout equipment according to claim 4 is characterized in that: described light source is a led light source.
7. a kind of automatic checkout equipment according to claim 4 is characterized in that: described plummer also comprises an automatic conveying device that is used for transmitting automatically detected article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035687A CN101699127A (en) | 2009-09-30 | 2009-09-30 | Light source for detecting and automatic detection equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035687A CN101699127A (en) | 2009-09-30 | 2009-09-30 | Light source for detecting and automatic detection equipment |
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| CN101699127A true CN101699127A (en) | 2010-04-28 |
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| CN200910035687A Pending CN101699127A (en) | 2009-09-30 | 2009-09-30 | Light source for detecting and automatic detection equipment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168467A (en) * | 2015-05-20 | 2016-11-30 | 上海沸谷自动化科技有限公司 | A kind of three-dimensional detection device and method |
| CN108180415A (en) * | 2017-12-28 | 2018-06-19 | 安徽宏实光机电高科有限公司 | A kind of LED light powered lighting arrangement of linear CCD using shadowless lamp principle |
| CN108758399A (en) * | 2018-05-03 | 2018-11-06 | 中国科学院武汉岩土力学研究所 | A kind of shearing equipment shear history auxiliary lighting apparatus |
| CN109060669A (en) * | 2018-06-29 | 2018-12-21 | 吴江朗科化纤有限公司 | A kind of intelligence mirror color device |
| CN109406519A (en) * | 2018-11-28 | 2019-03-01 | 广州番禺职业技术学院 | A kind of detection device and method of the special-shaped irregular solder joint of inductance element pin |
| CN110220168A (en) * | 2018-03-02 | 2019-09-10 | 台湾爱司帝科技股份有限公司 | Video capturing device and its ring-shaped light source structure |
| CN110398849A (en) * | 2019-07-31 | 2019-11-01 | 北京兆维电子(集团)有限责任公司 | A kind of liquid crystal display Systems for optical inspection |
| CN113340905A (en) * | 2021-06-01 | 2021-09-03 | 深圳市立德通讯器材有限公司 | Display screen assembly connecting terminal appearance detection equipment and method |
-
2009
- 2009-09-30 CN CN200910035687A patent/CN101699127A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168467A (en) * | 2015-05-20 | 2016-11-30 | 上海沸谷自动化科技有限公司 | A kind of three-dimensional detection device and method |
| CN108180415A (en) * | 2017-12-28 | 2018-06-19 | 安徽宏实光机电高科有限公司 | A kind of LED light powered lighting arrangement of linear CCD using shadowless lamp principle |
| CN110220168A (en) * | 2018-03-02 | 2019-09-10 | 台湾爱司帝科技股份有限公司 | Video capturing device and its ring-shaped light source structure |
| CN108758399A (en) * | 2018-05-03 | 2018-11-06 | 中国科学院武汉岩土力学研究所 | A kind of shearing equipment shear history auxiliary lighting apparatus |
| CN109060669A (en) * | 2018-06-29 | 2018-12-21 | 吴江朗科化纤有限公司 | A kind of intelligence mirror color device |
| CN109406519A (en) * | 2018-11-28 | 2019-03-01 | 广州番禺职业技术学院 | A kind of detection device and method of the special-shaped irregular solder joint of inductance element pin |
| CN110398849A (en) * | 2019-07-31 | 2019-11-01 | 北京兆维电子(集团)有限责任公司 | A kind of liquid crystal display Systems for optical inspection |
| CN110398849B (en) * | 2019-07-31 | 2024-03-22 | 北京兆维电子(集团)有限责任公司 | Optical detection system for liquid crystal display screen |
| CN113340905A (en) * | 2021-06-01 | 2021-09-03 | 深圳市立德通讯器材有限公司 | Display screen assembly connecting terminal appearance detection equipment and method |
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Open date: 20100428 |