Three-dimensional marking equipment and method based on two-dimensional laser marking machine

Abstract

The invention discloses three-dimensional marking equipment based on a two-dimensional laser marking machine. The equipment comprises a 3D conversion module and the two-dimensional laser marking machine, wherein the 3D conversion module is placed between a laser and a two-dimensional galvanometer head of the two-dimensional laser marking machine. The invention further discloses a three-dimensionalmarking method based on the two-dimensional laser marking machine. Through additionally arranging the 3D conversion module in the two-dimensional laser marking machine, three-dimensional position information, corresponding to two-dimensional position information of a marking pattern, of the to-be-marked curved surface of a workpiece can be obtained, and then the movement of a dynamic focusing lens and the rotation of the two-dimensional galvanometer head are controlled to carry out three-dimensional marking on the curved surface according to the obtained three-dimensional position information. The three-dimensional marking method based on the two-dimensional laser marking machine has the advantages that the efficiency is relatively high, and the three-dimensional marking can be carried out as long as the 3D conversion module is additionally arranged in the two-dimensional laser marking machine, so that the usage is flexible, and the cost is relatively low.

Description

technical field [0001] The invention belongs to the field of laser processing, and more specifically relates to a three-dimensional marking device and method based on a two-dimensional laser marking machine. Background technique [0002] In recent years, laser processing technology has made great progress and breakthroughs in different fields. It uses high-energy-density lasers to irradiate the workpiece to make its surface undergo a chemical reaction of gasification or color change, thereby leaving a permanent mark. Laser marking technology has been widely used in all walks of life, and has opened up broad prospects for high-quality, high-efficiency, pollution-free and low-cost modern processing and production. [0003] Currently on the market, there are two main methods of laser three-dimensional processing, one is the dynamic focus three-dimensional marking method, and the other is the rotary marking method. The dynamic focusing three-dimensional marking method uses soft...

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Problems solved by technology

[0005] Aiming at the defects of the prior art, the purpose of the present invention is to propose a three-dimensional marking equipment and method based on a two-dimensional laser marking machine, aiming to solve the problems caused by point-by-point alignment and marking by mechanical rotation in the prior art. The problem of low marking efficiency

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