Laser marking machine and marking method thereof

Abstract

The present invention provides a laser marking machine and a marking method thereof. The laser marking machine comprises marking software, an electric control part, a laser device, a beam expanding lens, a galvanometer system and an optical focusing lens, wherein the marking software, the electric control part, the laser device, the beam expanding lens, the galvanometer system and the optical focusing lens are sequentially connected. Compared to the common large-area laser marking machine, the laser marking machine of the present invention has advantages of high energy density, high marking precision, fine marking effect and uniform energy distribution in the working range. According to the present invention, the with the marking machine and the marking method, a variety of materials can be correspondingly processed, the precise marking requirements can be met, and the fine marking quality can be ensured; the laser marking machine and the marking method can be used in consumer electronics, handicrafts, kitchen and toilet, metal molds and other marking industrial with laser such as metal surface engraving, marking, ink jetting and the like, and can replace the traditional printing and dying process, the traditional drawing process, the traditional grinding process and other processes, wherein the operation is safe and simple due to the non-contact processing, no pollution is generated during the processing, the chemicals are not used, and the cost is low.

Description

technical field [0001] The invention belongs to the technical field of laser processing, and in particular relates to a laser marking machine and a marking method thereof. Background technique [0002] Existing large-format laser marking processing equipment generally uses galvanometer scanning systems and planar focusing field mirrors. The galvanometer scanning system and the planar focusing field lens have problems such as a decrease in energy density, uneven energy illumination, different sizes of focus spots, a decrease in marking accuracy, and a deterioration in the fineness of marking after the working format is increased. The existence of these problems makes the marking effect not good, which is the bottleneck of large-format marking applications. If it cannot be improved or solved, it will seriously limit the application prospects of large-format laser marking. Contents of the invention [0003] The object of the present invention is to provide a method and a las...

AI Technical Summary

Problems solved by technology

The galvanometer scanning system and the planar focusing field lens have problems such as decreased energy density, uneven energy illumination, different sizes of focus spots, decreased marking accuracy, and poor marking fineness after the working format is increased.

The existence of these problems makes the marking effect not good, which is the bottleneck of large-format marking application. If it cannot be improved or solved, it will seriously limit the application prospect of large-format laser marking.

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