CN204359287U - A kind of small-sized circuit board surface smoothness automatic detection device - Google Patents
A kind of small-sized circuit board surface smoothness automatic detection device Download PDFInfo
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- CN204359287U CN204359287U CN201420831857.3U CN201420831857U CN204359287U CN 204359287 U CN204359287 U CN 204359287U CN 201420831857 U CN201420831857 U CN 201420831857U CN 204359287 U CN204359287 U CN 204359287U
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- convex lens
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- circuit board
- image acquisition
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Abstract
The utility model discloses a kind of small-sized circuit board surface smoothness automatic detection device, comprising: casing (1), travelling belt (2), laser instrument (3), ray detector (4), the first convex lens (5), catoptron (6), signal amplifier (7), A/D converter (8) and image acquisition device (9), display device (10), the second convex lens (11); Display device (10) is arranged on casing (1) outward, travelling belt (2) is through casing (1), first convex lens (5) are arranged on directly over travelling belt (2), ray detector (4), image acquisition device (9) are arranged on the top of the first convex lens (5), and ray detector (4) is positioned on the focal plane of the first convex lens (5); The below of image acquisition device (9) arranges the second convex lens (11); The utility model travelling belt transmits detected circuit plate automatically, automatically detects, and detection efficiency is high, and accuracy is high.
Description
Technical field
The utility model relates to a kind of circuit board detecting field, particularly relates to a kind of small-sized circuit board surface smoothness automatic detection device.
Background technology
Circuit board surface needs welding component, and the flatness of circuit board surface affects the connection of components and parts and circuit board line, and especially when circuit board size is less, (thickness is within 1mm, and area is 100cm
2), components and parts welding pin is little, the burr of circuit board surface or depression points just easily cause components and parts rosin joint or loose contact, thickness is that the circuit board within 1mm generally has 0.4mm, 0.6mm, 0.8mm, 1.0mm specification, circuit board thickness is thin, when circuit board surface flatness is poor, have a strong impact on product quality, need to detect small-sized circuit board surface smoothness.
In prior art, circuit board surface flatness detects to be needed by magnifier or microscope manual detection, and detection efficiency is low, and loss is high, and only can realize sampling observation, entirely can not detect, affect the production qualification rate of product to small-sized circuit board.
Utility model content
For problems of the prior art, the utility model provides a kind of small-sized circuit board surface smoothness automatic detection device, can automatic detection circuit plate surface smoothness, and detection efficiency is high.
Technical solutions of the utility model are as follows:
A kind of small-sized circuit board surface smoothness automatic detection device, comprising: casing, travelling belt, laser instrument, ray detector, the first convex lens, catoptron, signal amplifier, A/D converter and image acquisition device, display device, the second convex lens.
Display device is arranged on outside casing, travelling belt is through casing, namely pass from two sides of casing, first convex lens are arranged on directly over travelling belt, ray detector, image acquisition device are connected with the end face of casing, ray detector, image acquisition device are arranged on the top of the first convex lens, and ray detector is positioned on the focal plane of the first convex lens.
Laser instrument is arranged on box top, and the laser that laser instrument is launched can be radiated on detected circuit plate; The below of image acquisition device arranges the second convex lens, and image acquisition device is connected with display device; Ray detector is connected with signal amplifier, A/D converter, and A/D converter is connected with external computing machine.
More preferably, the utility model also comprises catoptron, catoptron comprises two, be separately positioned on two sides of casing, the minute surface of catoptron is arranged obliquely towards tank floor, the light emission reflexing to side can be returned the first convex lens, the light source making ray detector fully can gather circuit-under-test plate to reflect.
Distance between travelling belt and the first convex lens is greater than the focal length of the first convex lens, and the focal length that the distance between the first convex lens and the second convex lens is greater than twice first convex lens is less than the focal length of twice first convex lens and the focal length sum of the second convex lens.Utilize microscope imaging principle, make image acquisition device can collect the real image of amplification, can the image on clear display small-sized circuit board surface.
More preferably, the connecting line of image acquisition device and display device is arranged along casing, and circuit is arranged neatly, is convenient to maintenance, and security performance is high simultaneously.
The connecting line of image acquisition device and display device is fixedly installed on casing.
The inside surface of casing and the upper surface black of travelling belt or blackish green, the inside surface of casing and travelling belt upper surface are Rough Horizontal Plane, reduce the inside surface of casing and travelling belt upper surface and the first convex lens are reflexed to laser, the light that the inside surface of casing and travelling belt upper surface reflect disperses, and reduces the impact on ray detector.
More preferably, image acquisition device is DDC camera, and image acquisition is clear.
Compared with prior art, the utility model comprises following beneficial effect:
The light that the utility model detected circuit plate reflection laser is launched, converge on focal plane through the first convex lens, received by ray detector, through the electric signal sending computer that light signal is changed by signal amplifier, A/D converter 8, by the flatness of external computer calculate display circuit board, the utility model travelling belt transmits detected circuit plate automatically, automatically detects, detection efficiency is high, and accuracy is high;
Further, the utility model utilizes microscope imaging principle, makes image acquisition device can collect the real image of amplification, can the image on clear display small-sized circuit board surface, can show the surface image of detected circuit plate in real time;
Further, the light that the inside surface of casing and travelling belt upper surface reflect disperses, and reduce the impact on ray detector, detection accuracy is high.
Accompanying drawing explanation
Fig. 1 is a kind of small-sized circuit board surface smoothness of the utility model automatic detection device structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment, only for explaining the utility model, does not form the restriction to the utility model protection domain.
As shown in Figure 1, a kind of small-sized circuit board surface smoothness automatic detection device, comprising: casing 1, travelling belt 2, laser instrument 3, ray detector 4, first convex lens 5, catoptron 6, signal amplifier 7, A/D converter 8 and image acquisition device 9, display device 10, second convex lens 11.
Display device 10 is arranged on outside casing 1, travelling belt 2 is through casing 1, namely pass from two sides of casing 1, first convex lens 5 are arranged on directly over travelling belt 2, ray detector 4, image acquisition device 9 are fixedly connected with the end face of casing, ray detector 4, image acquisition device 9 are arranged on the top of the first convex lens 5, and ray detector 4 is positioned on the focal plane of the first convex lens 5.
Laser instrument 3 is arranged on casing 1 end face, and the laser that laser instrument 3 is launched can be radiated on detected circuit plate; The below of image acquisition device 9 arranges the second convex lens 11, and image acquisition device 9 is connected with display device 10; Ray detector 4 is connected with signal amplifier 7, A/D converter 8, and A/D converter 8 is connected with external computing machine.
More preferably, the utility model also comprises catoptron 6, catoptron 6 comprises two, be separately positioned on two sides of casing 1, the minute surface of catoptron 6 is arranged obliquely towards tank floor, the light emission reflexing to side can be returned the first convex lens 5, the light source making ray detector 4 fully can gather circuit-under-test plate to reflect.
Distance between travelling belt 2 and the first convex lens 5 is greater than the focal length of the first convex lens 5, and the focal length that the distance between the first convex lens 5 and the second convex lens 11 is greater than twice first convex lens 5 is less than the focal length of twice first convex lens 5 and the focal length sum of the second convex lens 11.Utilize microscope imaging principle, make image acquisition device 9 can collect the real image of amplification, can the image on clear display small-sized circuit board surface.
Image acquisition device 9 is arranged along casing 1 with the connecting line of display device 10, and circuit is arranged neatly, is convenient to maintenance, and security performance is high simultaneously.
Image acquisition device 9 is fixedly installed on casing 1 with the connecting line of display device 10.
The inside surface of casing 1 and the upper surface black of travelling belt 2 or blackish green, inside surface and travelling belt 2 upper surface of casing 1 are Rough Horizontal Plane, reduce the inside surface of casing 1 and travelling belt 2 upper surface and the first convex lens 5 are reflexed to laser, the light that the inside surface of casing 1 and travelling belt 2 upper surface reflect disperses, and reduces the impact on ray detector 4.
Image acquisition device 9 is DDC camera, and image acquisition is clear.
Below be only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. a small-sized circuit board surface smoothness automatic detection device, it is characterized in that, comprising: casing (1), travelling belt (2), laser instrument (3), ray detector (4), the first convex lens (5), catoptron (6), signal amplifier (7), A/D converter (8) and image acquisition device (9), display device (10), the second convex lens (11);
Described display device (10) is arranged on casing (1) outward, travelling belt (2) is through casing (1), first convex lens (5) are arranged on directly over travelling belt (2), ray detector (4), image acquisition device (9) are connected with the end face of casing, described ray detector (4), image acquisition device (9) are arranged on the top of the first convex lens (5), and described ray detector (4) is positioned on the focal plane of the first convex lens (5);
Described laser instrument (3) is arranged on casing (1) end face, and the laser that laser instrument (3) is launched can be radiated on detected circuit plate;
The below of described image acquisition device (9) arranges the second convex lens (11), and described image acquisition device (9) is connected with display device (10);
Described ray detector (4) is connected with signal amplifier (7), A/D converter (8), and described A/D converter (8) is connected with external computing machine.
2. a kind of small-sized circuit board surface smoothness automatic detection device according to claim 1, is characterized in that, also comprise catoptron (6), described catoptron (6) comprises two, is separately positioned on two sides of casing (1).
3. a kind of small-sized circuit board surface smoothness automatic detection device according to claim 2, it is characterized in that, the minute surface of described catoptron (6) is arranged obliquely towards tank floor.
4. a kind of small-sized circuit board surface smoothness automatic detection device according to claim 1, it is characterized in that, distance between described travelling belt (2) and the first convex lens (5) is greater than the focal length of the first convex lens (5), and the focal length that the distance between the first convex lens (5) and the second convex lens (11) is greater than twice first convex lens (5) is less than the focal length of twice first convex lens (5) and the focal length sum of the second convex lens (11).
5. a kind of small-sized circuit board surface smoothness automatic detection device according to claim 1, is characterized in that, described image acquisition device (9) is arranged along casing (1) with the connecting line of display device (10).
6. a kind of small-sized circuit board surface smoothness automatic detection device according to claim 5, is characterized in that, described image acquisition device (9) is fixedly installed on casing (1) with the connecting line of display device (10).
7. a kind of small-sized circuit board surface smoothness automatic detection device according to claim 1, is characterized in that, the inside surface of described casing (1) and the upper surface black of travelling belt (2) or blackish green.
8. a kind of small-sized circuit board surface smoothness automatic detection device according to claim 1, is characterized in that, inside surface and travelling belt (2) upper surface of described casing (1) are Rough Horizontal Plane.
9. a kind of small-sized circuit board surface smoothness automatic detection device according to claim 1, is characterized in that, described image acquisition device (9) is DDC camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420831857.3U CN204359287U (en) | 2014-12-25 | 2014-12-25 | A kind of small-sized circuit board surface smoothness automatic detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420831857.3U CN204359287U (en) | 2014-12-25 | 2014-12-25 | A kind of small-sized circuit board surface smoothness automatic detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204359287U true CN204359287U (en) | 2015-05-27 |
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ID=53260751
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420831857.3U Expired - Fee Related CN204359287U (en) | 2014-12-25 | 2014-12-25 | A kind of small-sized circuit board surface smoothness automatic detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204359287U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567755A (en) * | 2014-12-25 | 2015-04-29 | 昆山元茂电子科技有限公司 | Automatic detection device for surface flatness of small-size circuit board |
| CN109708593A (en) * | 2019-02-27 | 2019-05-03 | 中国科学院上海技术物理研究所 | A kind of splicing focus planar detector flatness inspection devices and measurement method on a large scale |
| CN112756281A (en) * | 2021-01-15 | 2021-05-07 | 镇江润茂钢球有限公司 | Steel ball surface roughness screening device and using method thereof |
-
2014
- 2014-12-25 CN CN201420831857.3U patent/CN204359287U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567755A (en) * | 2014-12-25 | 2015-04-29 | 昆山元茂电子科技有限公司 | Automatic detection device for surface flatness of small-size circuit board |
| CN109708593A (en) * | 2019-02-27 | 2019-05-03 | 中国科学院上海技术物理研究所 | A kind of splicing focus planar detector flatness inspection devices and measurement method on a large scale |
| CN109708593B (en) * | 2019-02-27 | 2023-11-07 | 中国科学院上海技术物理研究所 | Flatness measuring device and method for large-scale spliced focal plane detector |
| CN112756281A (en) * | 2021-01-15 | 2021-05-07 | 镇江润茂钢球有限公司 | Steel ball surface roughness screening device and using method thereof |
| CN112756281B (en) * | 2021-01-15 | 2023-12-12 | 镇江润茂钢球有限公司 | Steel ball surface roughness screening device and application method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20181225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |