Aluminum flatness visual inspection system

Abstract

A visual inspection system for flatness of an aluminum plate, comprising a camera and a laser light source, the optical axis of the camera lens forms an angle with the movement plane of the aluminum plate transmission line, the laser light source and the camera are arranged on the same side of the movement plane of the aluminum plate transmission line, and the projection direction of the laser light source is in line with the movement plane of the aluminum plate transmission line The movement plane of the aluminum plate transmission line is at an included angle. The laser light source projects a straight line laser to the aluminum plate on the aluminum plate transmission line. The camera captures the laser projection line on the aluminum plate. According to the bending degree of the laser projection line in the camera, the height change of the aluminum plate plane is judged. The laser projects a straight line from an oblique angle on the plane of the aluminum plate, and detects the degree of curvature of each point of the line in the captured image to obtain the change in height at that point. When the entire aluminum plate is scanned once, the height fluctuation of the entire plane can be obtained. . Compared with the plane of the standard aluminum plate, the area of ​​height change can be obtained to determine whether the flatness of the aluminum plate meets the requirements of process production. According to the inspection results, a qualified or unqualified signal is given.

Description

Technical field: [0001] The invention relates to the field of physics, in particular to measurement technology, in particular to three-dimensional data measurement on the surface of an object, in particular to a visual inspection system for the flatness of an aluminum plate. Background technique: [0002] In the production process of the aluminum plate, it is necessary to detect the flatness of the aluminum plate in real time. In the prior art, it is difficult to detect the flatness of the aluminum plate at high speed. Only random inspection can be used as a means of quality inspection. Invention content: [0003] The object of the present invention is to provide a visual inspection system for the flatness of an aluminum plate, which solves the technical problem that it is difficult to detect the flatness of an aluminum plate at high speed in the prior art. In this way, it is possible to carry out full inspection on the product, and improve the level of quality inspectio...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a visual inspection system for the flatness of aluminum plates, which solves the technical problem that it is difficult to detect the flatness of aluminum plates at high speed in the prior art

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