Automatic inspection machine of step electrode

Abstract

The invention discloses an automatic inspection machine of a step electrode. The automatic inspection machine comprises a rack, an image collection device, a transverse drive device, an industrial personal computer and a display screen, wherein the rack is provided with a detection platform and comprises a microscope stage and a servo system; the image collection device is located at the upper part of the microscope stage and comprises a base frame, a Z-axis adjusting mechanism, a shooting mechanism and a code reading mechanism; the Z-axis adjusting mechanism, the shooting mechanism and the code reading mechanism are arranged on the base frame; the Z-axis adjusting mechanism comprises a PLC and a Z-axis drive assembly; the Z-axis drive assembly is controlled by the PLC and drives the shooting mechanism to move; the shooting mechanism comprises a camera, a point light source and a laser range finder; the laser range finder is used for measuring the distance between the laser range finder and the surface of a liquid crystal screen; the code reading mechanism is used for reading bar code information carried on the liquid crystal screen; the transverse drive device is used for determining transverse motion of the image collection device relative to the detection platform; the industrial personal computer is connected with the servo system, the PLC, the camera, the point light source and the laser range finder separately and is provided with an image collection management system and a defect identification system; and the display screen is used for displaying an operation interface and a defect detection result.

Description

technical field [0001] The invention relates to the technical field of optical inspection, in particular to an automatic inspection machine for stepped electrodes. Background technique [0002] Liquid crystal displays have the advantages of small size, low power consumption, and low radiation, and have been widely used in electronic equipment such as desktop computers, notebook computers, mobile phones, LCD TVs, and car computers. The liquid crystal display screen is manufactured through a complex production process, and the signal lines on it are prone to various defects. Therefore, it is necessary to detect the circuit defects on the liquid crystal display screen to prevent defective products from flowing out. [0003] At present, the line detection of LCD screens adopts manual visual inspection. The inspectors work for a long time and their eyes are prone to fatigue, resulting in a decrease in efficiency and prone to misjudgments or missed judgments. Contents of the inv...

AI Technical Summary

Problems solved by technology

[0003] At present, the line detection of LCD screens adopts manual visual inspection. The inspectors work for a long time and their eyes are prone to fatigue, resulting in a decrease in efficiency and prone to misjudgments or missed judgments.

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