Visual inspection system
A visual inspection device and visual inspection technology, applied in the field of visual inspection systems, can solve problems such as tolerance, production reduction, and drop
Pending Publication Date: 2021-10-12
LIANG TECH
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Problems solved by technology
[0002] The quality and appearance inspection of various components on the circuit board of electronic products is an important step in the manufacturing and inspection process. In order to make the inspection more accurate, most of the current visual inspection systems are used for inspection in the form of images, and in the inspection process , the object to be detected will be photographed in a large area first, and the coordinates of the object to be detected will be positioned, and then local image shooting will be performed based on the coordinates of the object to be detected. After coordinate positioning, the detection of the object to be inspected can be started. However, no matter how accurate the drive precision of the object to be inspected or the camera unit is, there must be tolerances, so when detecting the object to be inspected, the accuracy will drop. And this kind of detection process will also make the detection time longer, resulting in reduced production capacity
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[0013] like figure 1 and figure 2 As shown in the figure, it is clear that the visual detecting system 10 of the first embodiment of the present invention is provided with a semi-mirror 2 and a visual detecting device 3, wherein:
[0014] The semi-mirror 2 is not parallel to the detected material 4, and has a reflecting surface 21 and a penetrating surface 22, and the reflecting surface 21 is used to reflect the 4 images of the object to be reflected in the first direction. The detecting 4 images are projected toward the second direction, while the detecting material 4 is placed on the detection platform 1.
[0015] The visual detecting device 3, the first photographing unit 32 and the second photographic unit 33 connected by the host end 31 and the host end 31, and the first photographing unit 32 is disposed laterally, the second photography The unit 33 is disposed laterally, and the detection program 311, the position correction program 312, and the proportional correction progr...
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A visual detection system uses a half-reflecting mirror to enable a positioning shooting unit and a detection shooting unit of a visual detection device to shoot an object to be detected with an overlapped shooting optical axis center and then carry out positioning and detection, so that errors caused by the fact that the object to be detected or the shooting units need to be moved in the process from positioning to detection in the prior art can be avoided, the detection accuracy is effectively improved, the time required for detection can be shortened, and the productivity is improved.
Description
Technical field [0001] A visual detection system, in particular, two detection photographing units, which are superimposed on the center of the optical axis, to position and detect the visual detection system to be positioned. Background technique [0002] The quality and appearance detection of various components on the circuit board in the electronic product, which is an important step in the manufacturing and inspection process, in order to make the detection more accurate, mostly use the visual inspection system, detect in the image, and during the detection process In the case of a large-area manner, the coordinate positioning is performed in a large area, and the coordinate positioning is performed in accordance with the coordinates of the object to be detected. This method must move the object or photographing unit, first treat the detection After the coordinate positioning is performed, it can begin to detect the detection of the object detection, however, whether there i...
Claims
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IPC IPC(8): G01N21/88G01N21/93G01N21/84G01N21/01
CPCG01N21/8851G01N21/93G01N21/84G01N21/01G01N2021/0112G01N2201/127
Inventor 王立维张聪德邱至轩
Owner LIANG TECH