Strainometer AOI defect identification detection device
A detection device and defect identification technology, applied in measurement devices, optical testing of flaws/defects, material analysis by optical means, etc. and other problems, to achieve the effect of reducing labor intensity, avoiding parallel light refraction, and avoiding missed inspections.
Active Publication Date: 2017-02-01
ZHONGHANG ELECTRONICS MEASURING INSTR
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Problems solved by technology
[0008] The technical problem to be solved by the present invention is to provide a strain gage AOI defect identification and detection device for the deficiencies in the above-mentioned prior art, in order to solve the problem that the judgment standards of the strain gage quality in the prior art are not uniform and easy Technical problems such as missed detection, false detection, and manual mechanical repetitive labor intensity, low detection efficiency, and low yield
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[0039] The full name of AOI (Automatic Optic Inspection) is automatic optical inspection, which is a device based on optical principles to detect common defects encountered in production. AOI is a new type of testing technology that is emerging, and it is developing rapidly. At present, the highest resolution can reach 7μm.
[0040] see figure 1 As shown, the present invention discloses a strain gauge AOI defect identification and detection device, which includes a vertically placed aluminum alloy frame 1, a mounting plate 2 is arranged on the top of the aluminum alloy frame 1, and an image acquisition device is connected to the mounting plate 2 through threads. Component 3, LED light source system 4, motion scanning component 5, light baffle plate 6, pneumatic adsorption mechanism 7 and curtain projection component 8.
[0041] Specifically: one side of the mounting plate 2 is provided with a moving scanning part 5, and the other side is provided with a screen projection part...
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The invention discloses a strainometer AOI defect identification detection device. The device comprises a vertical aluminum alloy frame of which the top is provided with an installing plate, the installing plate is provided with a motion scanning part and a curtain projection part, the motion scanning part is provided with an optical amplifier assembly for projection and an image acquisition part, a light source system in the frame projects strainometer images to the curtain projection part line by line through the optical amplifier assembly. The image acquisition part utilizes projection data of the curtain projection part to carry out strainometer defect detection. The device prevents strainometer damage, effectively prevents detection missing, greatly improves strainometer defect identification detection efficiency, reduces labor intensity, has a wide application range, utilizes a LED light source backlight illumination imaging method, greatly improves projection imaging definition and resolution and effectively reduces mechanical oscillation-caused strainometer sensitive grid imaging distortion.
Description
[0001] 【Technical field】 [0002] The invention belongs to the technical field of automatic machinery and relates to a defect identification and detection device, in particular to a strain gauge AOI defect identification and detection device. [0003] 【Background technique】 [0004] A strain gauge is a transducer that can convert the strain on an engineering component, that is, a change in size, into a change in resistance. Strain gauges are generally composed of sensitive grids, leads, adhesives, base layers and surface covers. Strain gauges have a wide range of applications, applicable structures include aviation, bridges, roads, various mechanical equipment, buildings, etc.; applicable materials include various metal and non-metal materials. The appearance size of the strain gauge is small, the length and width of the base are only a few millimeters, the internal structure size of the strain gauge is small, the grid width is generally 25-40 μm, and the grid distance is 40-6...
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Login to View More IPC IPC(8): G01N21/88
CPCG01N21/8806G01N2021/8829
Inventor 白文超路新科李厚新曹新成张志刚
Owner ZHONGHANG ELECTRONICS MEASURING INSTR