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Mirror-vibrating laser three-dimensional scanning system

A laser three-dimensional scanning system technology, applied in laser welding equipment, optics, optical components, etc., can solve the problems of increased laser power loss, poor stability, and complex optical path, and achieve the effects of reduced cost, improved stability, and simple optical path

Active Publication Date: 2009-04-29
武汉飞能达激光技术有限公司
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Problems solved by technology

However, its disadvantages are that the optical path is more complicated due to the addition of two reflectors, the stability is poor, the laser power loss is increased, and the cost is high, especially for expensive ultraviolet and high power density laser reflectors.

Method used

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  • Mirror-vibrating laser three-dimensional scanning system
  • Mirror-vibrating laser three-dimensional scanning system
  • Mirror-vibrating laser three-dimensional scanning system

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Embodiment Construction

[0014] Hereinafter, the method of the present invention will be further described in detail through the accompanying drawings and examples.

[0015] The galvanometer laser scanning system is divided into two parts; one part is the xy two-axis scanning galvanometer, and the other part is the scanning focusing lens. The xy two-axis scanning galvanometer is fixed and does not move in the z-axis direction, while the scanning focus lens can move up and down relative to the xy two-axis scanning galvanometer in the z-axis direction, and automatically adjust the focus position in the z-axis direction to achieve three-dimensional processing purpose.

[0016] A system that implements the above method, such as figure 2 As shown, the system of the present invention consists of a laser 1, a beam expander 3, an x-axis scanning galvanometer 6, a y-axis scanning galvanometer 7, a scanning focusing lens 8, a z-axis moving mechanism 15 and a control system.

[0017] The mirror centers of the x-axis...

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Abstract

The invention discloses a vibration mirror type laser 3D scanning system which comprises a laser, a beam expander, an x-axis scanning vibration mirror, a y-axis scanning vibration mirror, a scanning focusing lens, a z-axis travel mechanism and a control system. The laser emits laser beams, and the laser beams are amplified and collimated by the beam expander and then directly enters the x-axis scanning vibration mirror and the y-axis scanning vibration mirror; the control system controls the z-axis travel mechanism to drive the scanning focusing lens to move up and down in the z-axis direction so as to adjust position of a laser focus point in the z-axis direction. The vibration mirror type laser 3D scanning system realizes 3D stereo processing function by the scanning focusing lens which is fixed on the z-axis travel mechanism and move up and down in the z-axis direction. Two mirrors are removed from the system, which reduce cost of a laser light path, especially for expensive mirrors. Meanwhile, the vibration mirror type laser 3D scanning system is easy for debugging collimation of the whole light path, and improves stability of the whole light path and utilization rate of laser power.

Description

Technical field [0001] The invention belongs to the technical field of laser processing applications, and specifically relates to a galvanometer type laser three-dimensional scanning system. Background technique [0002] The galvanometer laser scanning system is composed of an xy two-dimensional scanning galvanometer and a scanning focusing mirror (such as a normal focusing lens or a telecentric scanning lens). Its working principle is to magnify and collimate the laser beam output by the laser by a beam expander. After the x-axis scanning galvanometer, the y-axis scanning galvanometer and the scanning focusing mirror are converged on the surface of the workpiece, the movement distance of the laser beam in the x-direction and y-direction of the material surface is controlled by controlling the rotation of the x-axis and y-axis scanning galvanometer And position, to process the surface of the workpiece. The scanning galvanometer control system has the characteristics of large outp...

Claims

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Application Information

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IPC IPC(8): G02B26/10B23K26/00B23K26/082
Inventor 段军李祥友王泽敏胡乾午曾晓雁
Owner 武汉飞能达激光技术有限公司
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