CN212159615U - Reflection light source device of large-view-field optical inspection machine - Google Patents
Reflection light source device of large-view-field optical inspection machine Download PDFInfo
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- CN212159615U CN212159615U CN201922420390.9U CN201922420390U CN212159615U CN 212159615 U CN212159615 U CN 212159615U CN 201922420390 U CN201922420390 U CN 201922420390U CN 212159615 U CN212159615 U CN 212159615U
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- 230000003287 optical effect Effects 0.000 title claims abstract description 23
- 238000007689 inspection Methods 0.000 title claims abstract description 20
- 230000008878 coupling Effects 0.000 claims description 11
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- 238000005859 coupling reaction Methods 0.000 claims description 11
- 230000000007 visual effect Effects 0.000 abstract description 12
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 2
- 238000005286 illumination Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
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Abstract
The utility model discloses automatic optical detection equipment technical field especially relates to a reflection light source device of big visual field optical inspection machine, including the speculum module, camera module and face light source, wherein a plurality of camera modules encircle to be frame shape structrual installation in the frame, the top in this frame shape structure is installed in the face light source tiling, and the camera module is installed on the face light source and sets up down, thereby make space between the circuit board under face light source and the frame become confined space, the light of face light source reflects each other through the speculum, thereby shine the visual field district light on the circuit board more even, also can not shelter from each other because of high components and parts and appear shadow and dead angle, promote the detection quality of big visual field optical inspection machine to the circuit board.
Description
Technical Field
The utility model belongs to the technical field of automatic optical detection equipment, especially, relate to a reflection light source device of big visual field optical inspection machine.
Background
AOI is an automatic optical inspection machine adopting an optical principle, and is mainly equipment for inspecting common defects of a circuit board (PCB). Aiming at different customer requirements, AOI is roughly divided into two different directions, one is a high-precision direction, more and more precise and fine defects can be detected, the resolution can be even as fine as 1u level, but the price is expensive and the detection speed is slow; the other is low-precision and high-speed direction, and is suitable for industries with large element size (low detection precision), high production line speed and very sensitive cost. The large-field AOI is a representative of low-precision high-speed directions which are popular in recent years, and is characterized in that a traditional X/Y motion main shaft is cancelled, and a camera lens is fixed. Generally, a large-pixel camera is selected to be matched with a wide-angle lens with a large resolution (the general resolution is 40-100u), and sometimes double-spelling and multi-spelling cameras are adopted in a modularized mode, so that the final field of view of once photographing covers the whole circuit board. Just because the image capture field of view is very large, the uniformity of illumination in the field of view is a difficulty. The test effect is good if the illumination is uniform, no dead angle and no shadow exist; otherwise, if the illumination is not uniform, dead angles exist and shadows exist, the test effect is poor.
The large-view-field optical inspection machine adopted in the current market is generally provided with light sources on four side walls of a view field area to make the illumination uniform, have no dead angle and shadow as much as possible, but still has insufficient places in the actual use process:
(1) although the light sources are located on the four side wall surfaces of the viewing area, the brightness of the viewing area is still not uniform, specifically: the areas closer to the four side walls are brighter, while the center position farthest from the field of view is darker;
(2) since the circuit board to be inspected has a slightly high electric component, such as various electrolytic capacitors, the high electric components block light from each other, thereby generating an illumination dead space and a shadow.
SUMMERY OF THE UTILITY MODEL
To prior art's not enough, this utility model provides a reflection light source device of big visual field optical inspection machine, the space between the circuit board with light source and detection is sealed up through the speculum, and light reflects each other and can make even and no dead angle of field of vision district luminance and shadow.
In order to achieve the above object, the utility model provides a reflection light source device of a large visual field optical inspection machine, which comprises a reflector module, a camera module and a surface light source, wherein the reflector module comprises a reflector clamped between a mirror cover plate and a mirror mounting seat, the back of the mirror mounting seat is provided with a mirror clamping block along the height direction, the lower end of the mirror clamping block is fixedly connected with the reflector module mounting seat, the upper end of the mirror clamping block is fixedly connected with a surface light source mounting seat, the reflector module mounting seat is fixedly connected with a frame through bolts, wherein a plurality of reflector modules are fixedly connected on the frame in a surrounding way and are of a frame structure, the surface light source mounting seat at the upper end of the frame structure is fixedly connected with a plurality of surface light sources laid side by side through bolts, the surface light source is provided with the camera module, the camera module comprises a camera arranged on the camera mounting seat and a lens which is connected with the, wherein the middle part of the surface light source is provided with a through hole for penetrating the lens.
As the utility model relates to a further improvement of reflection light source device of big visual field optical inspection machine: the mirror clamp splice is along its direction of height to and a plurality of screw holes are all seted up to the rigid coupling end of speculum module mount pad and mirror clamp splice, and the mirror clamp splice is worn to establish corresponding screw hole and speculum module mount pad rigid coupling through the screw.
As the utility model relates to a further improvement of reflection light source device of big visual field optical inspection machine: the camera is arranged on the camera mounting seat through the inverted L-shaped plate, wherein a plurality of threaded holes are respectively formed in the two sides of the camera mounting seat along the height direction of the camera mounting seat, and the inverted L-shaped plate is fixedly connected with the camera mounting seat through screws.
As the utility model relates to a further improvement of reflection light source device of big visual field optical inspection machine: the mirror cover plate and the mirror mounting base are clamped together through screws.
The utility model discloses a reflection light source device of big visual field optical inspection machine's beneficial effect: enclose into the speculum module of frame-shaped structure, constitute the enclosure space that detects the circuit board with the area source of flatly laying in speculum module upper end together, reflect each other through the speculum to the field of vision district light that shines on the circuit board is more even, also can not shelter from each other because of high components and parts and appear shadow and dead angle, promote the detection quality of big visual field optical inspection machine to the circuit board.
Drawings
Fig. 1 is a schematic front structural view of a reflector module according to the present invention;
fig. 2 is a schematic view of a back structure of the mirror module of the present invention;
FIG. 3 is a schematic view of the general structure of the mirror module according to the present invention;
in the figure: 1. mirror apron, 2, mirror mount pad, 3, speculum, 4, mirror clamp splice, 5, speculum module mount pad, 6, area source mount pad, 7, area source, 8, camera, 9, camera lens, 10, camera mount pad, 11, L shaped plate, 12, frame.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The utility model discloses a pair of reflection light source device of big visual field optical inspection machine, including the speculum module, camera module and face light source, wherein a plurality of camera modules encircle to be frame shape structure and install in frame 12, the 7 tiling of area source is installed on the structural top of this frame shape, and the camera module is installed on area source 7 and sets up down, thereby make the space between the circuit board under area source 7 and the frame 12 become confined space, the light of area source 7 passes through reflector 3 reflection each other, thereby shine the field of vision district light on the circuit board more even, also can not appear shadow and dead angle because of high components and parts shelter from each other.
Specifically, the reflector module comprises a reflector 3 clamped between a mirror cover plate 1 and a mirror mounting seat 2, a mirror clamping block 4 is arranged on the back of the mirror mounting seat 2 along the height direction of the mirror mounting seat, the lower end of the mirror clamping block 4 is fixedly connected with a reflector module mounting seat 5, the upper end of the mirror clamping block 4 is fixedly connected with a surface light source mounting seat 6, specifically, the mirror clamping block 4 is provided with a plurality of threaded holes along the height direction of the mirror clamping block, the fixedly connected ends of the reflector module mounting seat 5 and the mirror clamping block 4 are respectively provided with a plurality of threaded holes, one end of the reflector module mounting seat 5 is fixedly connected onto a frame 12 through a bolt, and the other end of the reflector module mounting seat is fixedly connected with the mirror clamping block 4 through a screw, so that the height of the reflector module mounted on the; as shown in fig. 3, the circuit board detection space can be freely disassembled and assembled, six reflector modules enclose a rectangular frame structure, four short reflector modules are arranged on the front side and the rear side, and two long reflector modules are arranged on the left side and the right side.
The surface light source 7 is fixed on the top of the rectangular frame structure through the surface light source mounting seat 6 to form a sealing ring; the camera module is including installing camera 8 on camera mount pad 10 to and link together and the direction camera lens 9 down through screw thread and camera 8, wherein set up in the middle part of area light source 7 and be used for wearing to establish the through-hole of camera lens 9, it is concrete, camera 8 installs on the L shaped plate 11 of inversion, this L shaped plate 11 of inversion and camera mount pad 10 rigid coupling together, and a plurality of screw holes are seted up respectively along its direction of height in camera mount pad 10 both sides, the L shaped plate 11 of inversion passes through screw and camera mount pad 10 rigid coupling, thereby through corresponding screw hole, can adjust the height of camera lens 9 apart from the circuit board.
The light source 7 is arranged on the top of the circuit board, the reflectors 3 are arranged on the periphery of the circuit board, and the height of the lens 9 and the installation height of the reflector module can be adjusted according to the field, so that the light of the surface light source 7 irradiating the circuit board has no dead angle, and the detection quality of the large-view-field optical inspection machine on the circuit board is improved.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent changes without departing from the technical scope of the present invention.
Claims (4)
1. A reflection light source device of a large-field optical inspection machine is characterized in that: including speculum module, camera module and area light source, the speculum module sets up the mirror clamp splice along its direction of height including pressing from both sides the speculum that fits between mirror apron and the mirror mount pad at the mirror mount pad back, mirror clamp splice lower extreme rigid coupling speculum module mount pad, mirror clamp splice upper end rigid coupling area light source mount pad, speculum module mount pad passes through the bolt rigid coupling in the frame, wherein encircle the rigid coupling by a plurality of speculum modules in the frame and be the frame structure, the area light source mount pad of this frame structure upper end passes through a plurality of area light sources of laying side by side of bolt rigid coupling, set up the camera module on the area light source, the camera module is including installing the camera on the camera mount pad to and link together and the direction camera lens down through the screw thread, wherein set up in the area light source middle part and be used for wearing to establish the through-hole of camera lens.
2. The reflective light source device of the large-field optical inspection machine according to claim 1, wherein: the mirror clamp splice is along its direction of height to and a plurality of screw holes are all seted up to the rigid coupling end of speculum module mount pad and mirror clamp splice, and the mirror clamp splice is worn to establish corresponding screw hole and speculum module mount pad rigid coupling through the screw.
3. The reflective light source device of the large-field optical inspection machine according to claim 1, wherein: the camera is arranged on the camera mounting seat through the inverted L-shaped plate, wherein a plurality of threaded holes are respectively formed in the two sides of the camera mounting seat along the height direction of the camera mounting seat, and the inverted L-shaped plate is fixedly connected with the camera mounting seat through screws.
4. The reflective light source device of the large-field optical inspection machine according to claim 1, wherein: the mirror cover plate and the mirror mounting base are clamped together through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922420390.9U CN212159615U (en) | 2019-12-27 | 2019-12-27 | Reflection light source device of large-view-field optical inspection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922420390.9U CN212159615U (en) | 2019-12-27 | 2019-12-27 | Reflection light source device of large-view-field optical inspection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212159615U true CN212159615U (en) | 2020-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922420390.9U Active CN212159615U (en) | 2019-12-27 | 2019-12-27 | Reflection light source device of large-view-field optical inspection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212159615U (en) |
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2019
- 2019-12-27 CN CN201922420390.9U patent/CN212159615U/en active Active
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Address after: 518000 Floor 5-6, Unit B, Building B4, Guangming Science Park, China Merchants Bureau, Fenghuang Community, Fenghuang Street, Guangming District, Shenzhen, Guangdong Patentee after: Shenzhen Mingrui Ideal Technology Co.,Ltd. Country or region after: China Address before: 518000 4th floor, building 5, Dayuan North District, Pingshan 1st Road, Xili Town, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN MAGIC-RAY TECHNOLOGY Co.,Ltd. Country or region before: China |
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