Visual detection system and method for through hole of transparent plate

Abstract

The invention discloses a visual detection system and method for a through hole of a transparent plate . A combined light source is controlled by a controller to perform time-sharing switching of multiple lighting modes; at least one imaging device is controlled to carry out imaging scanning in different illumination modes; multi-channel image acquisition of shapes and defects of the through holeis realized; the information amount of image acquisition is greatly enriched; the accuracy and the precision of the through hole shape information and the defect information are improved; finally, theprocessor is used for analyzing based on a large amount of collected image data to obtain the shape precision and internal defects of the through hole in the transparent plate; the detection rate andthe recognition rate of the through hole defects are ensured; and a three-dimensional distribution diagram of the through hole defects in the transparent plate is accurately constructed, so that important reference indexes can be provided for guiding defect causes, adjusting a production process and grading material finished products on line, the real-time performance is high, the reaction speedis high, the online improvement of the processing quality is facilitated, and the production operation efficiency and the product yield are greatly improved.

Description

technical field [0001] The present invention relates to the technical field of defect detection of transparent plates, in particular to a visual detection system for through-holes of transparent plates, and also to a visual detection method for through-holes of transparent plates. Background technique [0002] After punching holes in glass plates (such as flat glass, inorganic glass, organic glass, acrylic, etc.), it is an indispensable link to detect the shape accuracy and position accuracy of the holes. At present, many production processes do not have automated testing equipment and rely on manual testing to control quality. However, the method of manual defect detection has the following problems: such as missed detection, false detection, etc., subjective factors lead to inconsistent quality control standards for glass output, and the required quality data cannot be obtained in real time, which is not convenient for the statistics and query of quality data. Low efficie...

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Problems solved by technology

[0004] The present invention provides a visual detection system and method for through-holes of transparent plates to solve the problem of low production efficiency and product yield due to the inability to analyze the three-dimensional relative positions of defects in glass plates in the existing glass plate automatic detection equipment low technical issues

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