CN101706415A - Annular light source automatic detecting equipment - Google Patents
Annular light source automatic detecting equipment Download PDFInfo
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- CN101706415A CN101706415A CN200910206565A CN200910206565A CN101706415A CN 101706415 A CN101706415 A CN 101706415A CN 200910206565 A CN200910206565 A CN 200910206565A CN 200910206565 A CN200910206565 A CN 200910206565A CN 101706415 A CN101706415 A CN 101706415A
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Abstract
The invention discloses annular light source automatic detecting equipment which comprises a camera (1), a light source surrounding the camera (1), a bearing platform (8) positioned below the camera (1) and the light source, and a computer used for comparing images, wherein the light source is four annular light sources which are respectively a white annular light source (2), a red annular light source (3), a green annular light source (4) and a blue annular light source (5) arranged from top to bottom in sequence; the incident angle of each annular light source is larger than that of the adjacent annular light source positioned at the upper part and smaller than that of the adjacent annular light source positioned at the lower part; and the blue annular light source (5) consists of 252 light emitting diodes. The annular light source automatic detecting equipment has the beneficial effects of having high accuracy for judging the tin-soldering point, and being not easy to misjudge.
Description
Technical field
The present invention relates to a kind of annular light source automatic detecting equipment, especially relate to a kind of annular light source automatic detecting 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 overlooker, 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, and 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 the product of few weldering often causes the finished product defective in time to detect, and 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 automatic detection effect annular light source automatic detecting equipment accurately that makes.
For achieving the above object, the invention provides a kind of annular light source automatic detecting equipment, be used for the detection of soldering, it comprises camera, be surrounded on the light source of camera, be positioned at the plummer of camera and light source below, be used to carry out the computing machine of image comparison, light source is 4 annular light sources, be respectively the white annular light source that is arranged in order from top to bottom, red annular light source, green annular light source, blue annular light source, the incident angle of each annular light source is greater than the incident angle of the adjacent annular light source that is positioned at the top and less than the incident angle of the adjacent annular light source that is positioned at the below, wherein blue annular light source is made up of 252 light emitting diodes.
More excellent, the shaft core position of white annular light source, red annular light source, green annular light source, blue annular 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 made up of light emitting diode, and the light-emitting diodes pipe 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 full-automation of production process.
The beneficial effect of a kind of annular light source automatic detecting equipment of the present invention is: 1, use four color light source to arrange and shine, emergent light is stable, and complementary colors is convenient to catch; 2, define the quantity of the light emitting diode of blue annular light source use, make full use of light source, reduce light loss, improve imaging definition, irradiation does not evenly have shade.
Description of drawings
The structural representation of Fig. 1 during for annular light source automatic detecting equipment duty of the present invention;
Principle of work synoptic diagram when Fig. 2 detects many welderings for annular light source automatic detecting equipment of the present invention;
Principle of work synoptic diagram when Fig. 3 welds less for annular light source automatic detecting equipment of the present invention detects;
Fig. 4 is the structural representation after Fig. 1 Smalt ring-type light source launches.
Among the figure
The 1-camera, 2-white annular light source, the red annular light source of 3-, the green annular light source of 4-, the blue annular light source of 5-, 6-PCB, 7-solder joint, 8-plummer.
Embodiment
Below in conjunction with accompanying drawing, specify the present invention.
Be illustrated in figure 1 as the structural representation of a kind of annular light source automatic detecting equipment of the present invention, a kind of annular light source automatic detecting equipment, be used for the detection of soldering, it comprises camera 1, be surrounded on the light source of camera 1, be positioned at the plummer 8 of camera 1 and light source below, be used to carry out the computing machine of image comparison, plummer 8 also comprises an automatic conveying device that is used for transmitting automatically detected article, light source is 4 annular light sources, 4 annular light sources are combined respectively by light emitting diode of all kinds, 4 annular light sources are respectively axis coinciding, the white annular light source 2 that is arranged in order from top to bottom, red annular light source 3, green annular light source 4, blue annular light source 5, 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; The incident angle of each annular light source is greater than the incident angle of the adjacent annular light source that is positioned at the top and less than the incident angle of the adjacent annular light source that is positioned at the below, wherein blue annular light source 5 is made up of 252 light emitting diodes.
Plummer 8 also comprises an automatic conveying device that is used for transmitting automatically detected article, plummer 8 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 robotization fully.
The principle of work of this automatic checkout equipment is as follows:
As shown in Figure 1, the position that the scolding tin aslope is distributed between element pin and the PCB6 forms solder joint 7, and when blue light shone solder joint 7 on the PCB6, blue light was reflexed to the position of camera 1 completely, and blue light is caught by camera 1 fully.Solder joint 7 just often, promptly not only not many welderings but also when not welding less, blue light is reflected to the position of camera 1 just, this moment by and computing machine in image contrast as can be known, it is normal that blue light is caught numerical value, if the characteristics of image in the feature database is also consistent in the shape that solder joint 7 is caught in and the computing machine, this computer-chronograph judges that solder joint 7 at this moment is normal, blue light seizure judgement and the combination of solder joint shape decision are judged the scolding tin situation, can be promoted the accuracy that scolding tin is judged greatly.
As shown in Figure 2, during solder joint more than 7 welderings, when blue light shines solder joint 7 on the PCB6, the position of camera 1 can be departed from the position that blue light is reflected, blue light can not be caught by camera 1 fully. this moment by and computing machine in image contrast as can be known, blue light is caught numerical exception, is less than regime values, even at this moment the characteristics of image in the feature database is consistent in the shape that is caught in of solder joint 7 and the computing machine, computing machine can judge that also the solder joint 7 of this moment is many welderings.
As shown in Figure 3, when solder joint 7 welded less, when blue light shone solder joint 7 on the PCB6, the position that blue light is reflected was departed from the position of camera 1 far away, and blue light can not be caught by camera 1 fully.This moment by and computing machine in image contrast as can be known, blue light is caught numerical exception, do not capture blue light fully, though at this moment in the shape that is caught in of solder joint 7 and the computing machine characteristics of image in the feature database consistent, computing machine can judge that also the solder joint 7 of this moment is few weldering.
For the solder joint on the PCB6, when the solder joint 7 in PCB6 left side is checked, computing machine receives the light that the left side light source sends and is reflected, and with this foundation as judgement solder joint 7, in like manner, when the solder joint 7 on PCB6 right side was checked, computing machine received the light that the right side light source sends and is reflected, and with this foundation as judgement.
Be the structural representation after the expansion of blue annular light source 5 as shown in Figure 4, if light emitting diodes can cause brightness not enough very little in the blue annular light source 5, image quality is low, if the light emitting diode number is too many, can cause the waste of light emitting diode; Smalt annular light source 5 of the present invention is made up of 252 light emitting diodes, light emitting diode divides 3 layers of inside that is arranged in blue annular light source 5, the light emitting diode number increases gradually from inside to outside, spacing is even between each light emitting diode, when blue annular light source 5 is radiated on the solder joint 7, makes full use of light source, reduce light loss, improve imaging definition, irradiation does not evenly have shade.
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 (4)
1. annular light source automatic detecting equipment, 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 (8) of described camera (1) and light source below, be used to carry out the computing machine of image recognition and contrast, it is characterized in that: described light source is made up of 4 annular light sources, be respectively the white annular light source (2) that is arranged in order from top to bottom, red annular light source (3), green annular light source (4), blue annular light source (5), the incident angle of each described light source is greater than the incident angle of the adjacent described annular light source that is positioned at the top and less than the incident angle of the adjacent described annular light source that is positioned at the below, described blue annular light source (5) is made up of 252 light emitting diodes.
2. a kind of annular light source automatic detecting equipment according to claim 1 is characterized in that: the shaft core position of described white annular light source (2), red annular light source (3), green annular light source (4), blue annular light source (5) overlaps.
3. a kind of annular light source automatic detecting equipment according to claim 1 is characterized in that: described light source is made up of light emitting diode.
4. a kind of annular light source automatic detecting equipment according to claim 1 is characterized in that: described plummer (8) also comprises an automatic conveying device that is used for transmitting automatically detected article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910206565A CN101706415A (en) | 2009-10-16 | 2009-10-16 | Annular light source automatic detecting equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910206565A CN101706415A (en) | 2009-10-16 | 2009-10-16 | Annular light source automatic detecting equipment |
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| CN101706415A true CN101706415A (en) | 2010-05-12 |
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| CN200910206565A Pending CN101706415A (en) | 2009-10-16 | 2009-10-16 | Annular light source automatic detecting equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896556A (en) * | 2018-06-22 | 2018-11-27 | 北京领邦智能装备股份公司 | A kind of multicolour combine detection device |
| CN110285765A (en) * | 2018-03-19 | 2019-09-27 | 发那科株式会社 | Check device and its inspection method |
| CN110775374A (en) * | 2018-07-24 | 2020-02-11 | Ckd株式会社 | Inspection device, PTP packaging machine, and method for manufacturing PTP sheet |
-
2009
- 2009-10-16 CN CN200910206565A patent/CN101706415A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285765A (en) * | 2018-03-19 | 2019-09-27 | 发那科株式会社 | Check device and its inspection method |
| CN113432542A (en) * | 2018-03-19 | 2021-09-24 | 发那科株式会社 | Inspection apparatus and inspection method thereof |
| CN110285765B (en) * | 2018-03-19 | 2021-10-29 | 发那科株式会社 | Inspection apparatus and inspection method thereof |
| CN113432542B (en) * | 2018-03-19 | 2023-10-31 | 发那科株式会社 | Inspection device and inspection method thereof |
| CN108896556A (en) * | 2018-06-22 | 2018-11-27 | 北京领邦智能装备股份公司 | A kind of multicolour combine detection device |
| CN110775374A (en) * | 2018-07-24 | 2020-02-11 | Ckd株式会社 | Inspection device, PTP packaging machine, and method for manufacturing PTP sheet |
| CN110775374B (en) * | 2018-07-24 | 2021-10-22 | Ckd株式会社 | Inspection device, PTP packaging machine, and method for manufacturing PTP sheet |
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Open date: 20100512 |