Positioning marking method applicable to large format

Abstract

The invention relates to a positioning marking method applicable to a large format. The positioning marking method comprises the following steps: 101, by calibrating a camera and actually measuring the camera format, the corresponding relationship between the camera and an axis coordinate system is established; 102, a product is divided into a plurality of areas according to the actual format of the camera, a coordinate set of needed photographing points is calculated, the camera is moved to series coordinates to photograph, and a system splices received independent images of the multiple areas to obtain an integrated image; and 103, the integrated image is loaded on a processing panel to serve as a substrate, a processing drawing file is moved onto a marking position of the substrate, andthe to-be-processed product is marked according to the integrated image. The defects that in the prior art, due to the large workpiece format, the lens scanning area is limited, consequently high-precision and large-format marking cannot be achieved, and the application range of laser processing is limited are overcome, the positioning marking method is applicable to positioning marking of the large format, high-precision marking is achieved, and meanwhile assembly-line-type automation continuous and precise marking can be achieved.

Description

technical field [0001] The invention relates to the technical field of laser marking, in particular to a positioning marking method suitable for large format. Background technique [0002] At present, compared with developed countries in Europe and the United States, my country is still far behind in high-end manufacturing. With the advancement of the "Made in China 2025" national strategy, my country will focus on promoting the development of high-end manufacturing. As one of the basic technologies of modern high-end manufacturing, laser will continue to upgrade and expand new application scenarios, driving the continuous growth of the entire laser industry. [0003] Laser marking is the fastest-growing application technology in recent years. It uses high-energy-density laser to irradiate the workpiece locally to vaporize or change the color of the surface material, thereby leaving a permanent mark. Laser marking has many unique advantages. It can mark various characters, ...

AI Technical Summary

Problems solved by technology

Although this patent can quickly determine the focus position, which greatly simplifies the operation process and increases the marking accuracy, it is not suitable for high-precision processing on large-format assembly lines

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