Laser marking machine and marking method thereof

A laser marking machine and laser beam technology, applied in the field of laser applications, can solve the problems of nonlinear distortion, inconsistent processing size, different linearity of galvanometers, etc., and achieve the effect of reducing distortion and improving processing accuracy.

Active Publication Date: 2014-10-15
HANS LASER TECH IND GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the laser marking process, since the linearity of the galvanometer cannot reach 100%, and the linearity of the galvanometer may be different in different ranges
Therefore, the galvanometer laser marking machine has linear distortion

Method used

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  • Laser marking machine and marking method thereof
  • Laser marking machine and marking method thereof
  • Laser marking machine and marking method thereof

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[0037] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0038] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as...

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Abstract

The invention provides a laser marking machine. When a workpiece is processed, a detecting instrument is driven to locate in different positions of a three-dimensional coordinate system through a three-dimensional mobile platform, and a voice coil motor is enabled to move, so that laser beams are respectively focused on the detecting instrument. Therefore, a correction table for the displacements of the voice coil motor can be obtained through recording the coordinate information of the different positions and the corresponding displacements of the voice coil motor when the laser beams are focused in the different positions. When the workpiece is marked, the three-dimensional mobile platform is dismantled, and the workpiece is put on a bearing table. A controller controls the voice coil motor to move according to the correction table and the coordinate information of light spots of the laser beams in the three-dimensional coordinate system, so that the laser beams are focused on the surface of the workpiece. Therefore, the laser marking machine and a marking method thereof can reduce the distortion so as to effectively improve the processing precision. In addition, the invention further provides a laser marking method.

Description

technical field [0001] The invention relates to laser application technology, in particular to a laser marking machine and a marking method thereof. Background technique [0002] The application range of laser scanning technology is getting wider and wider, and its application industries involve photoelectric medical treatment, laser processing, laser cutting, laser welding and so on. In the application of various laser scanning technologies, it is required that the laser beam can be accurately focused on any position on the field of view, and the movement of the light spot is carried out according to a certain relationship. Among various laser scanning technologies, galvanometer scanning is a widely used scanning method. The galvanometer is a mirror used to control the direction of the laser beam. Generally, in a laser marking machine, a vibrating mirror is installed in the X-axis and Y-axis directions, and the purpose of moving the light spot is achieved by rotating the ...

Claims

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Application Information

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IPC IPC(8): B41J2/435
Inventor 舒远李玉廷王光能闫静米野丁兵高云峰
Owner HANS LASER TECH IND GRP CO LTD
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