Calibration method, device and galvanometer coaxial vision system of laser light-emitting point

Abstract

The present invention relates to a calibration method and device of a laser light-out indication point, and a vibrating mirror coaxial vision system. Point array image, calculate the corresponding perspective transformation matrix and the standard image rotation angle corresponding to each point array image, obtain the first coordinate of the real-time photographing position point in the galvanometer coordinate system, and move the galvanometer to the real-time photographing position point To trigger the camera component to take pictures of the real-time camera position points to obtain the product image, according to the first coordinate, the perspective transformation matrix and the standard image rotation angle, the product image is rotated, straightened and marked, and the product after the mark is photographed The image is displayed in real-time in the texture display area corresponding to the galvanometer drawing area, which generally improves the processing efficiency of the entire galvanometer coaxial vision system.

Description

technical field [0001] The invention relates to the field of laser processing, in particular to a method and device for marking a laser light output point and a vibrating mirror coaxial vision system. Background technique [0002] Laser precision machining is one of the most advanced processing technologies at present. Among them, the galvanometer coaxial vision system has the advantages of high processing precision and fast response speed. The galvanometer coaxial vision system is a combination of laser control module and industrial machine vision module (industrial Camera) integrates an integrated advanced laser processing module, and the galvanometer coaxial vision system collects images through the integrated industrial camera, then uses the visual algorithm to calculate the image, and finally compensates the processing position according to the calculation result. [0003] Wherein, the galvanometer coaxial vision system usually uses a red light point to indicate the pos...

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Problems solved by technology

[0004] However, the current galvanometer coaxial vision system has serious red light divergence, large spots and poor precision in the actual application process, and it is necessary to pay attention to the red light point indication area and the galvanometer drawing display area at the same time in the process of laser processing documents , and there is often a certain distance between the red light point indication area and the galvanometer drawing display area, therefore, the processing of the entire galvanometer coaxial vision system is extremely inconvenient and the overall efficiency is low

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