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Method and device for realizing laser cleaning based on light beam peripheral scanning

A circular scanning and laser cleaning technology, applied in cleaning methods and utensils, chemical instruments and methods, optics, etc., can solve the problems of difficult change of scanning range, unfavorable uniform beam irradiation, high production process requirements, and low performance requirements. Low cost and uniform scanning results

Inactive Publication Date: 2018-09-14
WEIFANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also certain defects in the multi-faceted rotating mirror: first, the manufacturing process is high and the cost is high; second, the incident point (or reflection point) of the beam changes with the rotation of the reflecting surface, which is not conducive to the uniform irradiation of the beam; third , the scanning range (or angle) is not easy to change, because the scanning range (or angle) of the rotating mirror is determined by the number of reflective surfaces
Fourth, when the beam aperture is relatively large, the volume of the multi-faceted mirror will be large

Method used

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  • Method and device for realizing laser cleaning based on light beam peripheral scanning
  • Method and device for realizing laser cleaning based on light beam peripheral scanning

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Embodiment 1 A method of laser cleaning based on beam circular scanning

[0045] The present invention provides a method for realizing laser cleaning based on beam circular scanning, comprising the following steps:

[0046] Step 1: Beam shaping, the laser emitted from the optical fiber becomes an approximately parallel beam after passing through the beam shaping system;

[0047] Step 2: irradiate the approximately parallel light beam on the rotating reflective mirror 2, and ensure that the approximately parallel light beam can be irradiated on the mirror surface during the rotation process of the rotating reflective mirror 2;

[0048] Step 3: The rotating mirror 2 irradiates the reflected light on the field mirror 4, and the field mirror 4 focuses the light beam reflected by the rotating mirror 2. When the motor rotates, the focal spot forms a scanning track 5 to realize circular scanning.

[0049] Specifically, the laser emitted by the optical fiber is transformed int...

Embodiment 2

[0050] Embodiment 2 A device for laser cleaning based on beam circular scanning

[0051] Such as figure 2 As shown, the present invention provides a laser cleaning device based on beam circular scanning, including a housing 1 , a bracket, a beam shaping system 6 , a motor 7 , a rotating mirror 2 , and a field mirror 4 .

[0052] A motor 7 is fixedly arranged on the top of the housing 1, and the motor 7 is electrically connected to a power line and a control line.

[0053] The motor 7 is fixed on the top or side wall of the housing 1 through a bracket, and the lower end of the motor 7 is connected with a rotatable rotating mirror 2, and the rotating mirror 2 can rotate clockwise or counterclockwise. The rotating mirror 2 has the function of adjusting the rotation speed, and the rotation speed is adjustable, because the laser irradiation time required by different cleaning objects will be different.

[0054] The rotating mirror 2 is a plane mirror.

[0055] The bottom of the...

Embodiment 3

[0059] Embodiment 3 A method of laser cleaning based on beam circular scanning

[0060] The present invention also provides a method for realizing laser cleaning based on beam circular scanning, comprising the following steps:

[0061] Step 1: Beam shaping, the laser emitted from the optical fiber becomes an approximately parallel beam after passing through the beam shaping system;

[0062] Step 2: irradiate the approximately parallel light beam on the fixed reflective lens 3, and the fixed reflective lens 3 irradiates the reflected light on the rotating reflective lens 2; the rotating reflective lens 2 ensures that the approximately parallel light beam can be irradiated on the mirror surface during the rotation process;

[0063] Step 3: The rotating mirror 2 irradiates the reflected light on the field mirror 4, and the field mirror 4 focuses the reflected beam of the rotating mirror 2. When the motor rotates, the focal spot forms a scanning track 5 to realize circular scannin...

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PUM

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Abstract

The invention discloses a method for realizing laser cleaning based on light beam peripheral scanning. Similar parallel light beams are irradiated to a rotary reflecting lens; the rotary reflecting lens is driven to rotate by a motor; and focal spots form a scanning trajectory to realize peripheral scanning. The invention further discloses a device for realizing laser cleaning based on light beamperipheral scanning; the device comprises a motor and the rotary reflecting lens; the lower end of the motor is connected with the rotary reflecting lens capable of rotating; the similar parallel light beams can be irradiated to the rotary reflecting lens; the reflected light beams are reflected by the rotary reflecting lens; and when the motor is rotated, the light beams reflected by the rotary reflecting lens form the scanning trajectory to realize peripheral scanning. The method and the device are uniform in scanning, high in cleaning efficiency, low in cost, long in life, low in mass, portable, simple and stable in overall structure and easy to realize.

Description

technical field [0001] The invention relates to a beam scanning device, in particular to a method and device for realizing laser cleaning based on beam circular scanning, and belongs to the technical field of laser cleaning and the like. Background technique [0002] As a new surface cleaning technology, laser cleaning has the advantages of no mechanical contact, no substrate damage, green environmental protection, and low operating cost. It has application prospects in the fields of mold cleaning, electronic component preparation, cultural relic protection and restoration, paint removal and rust removal. Very broad. Therefore, the research and development of laser cleaning technology and equipment has attracted great attention of researchers at home and abroad. [0003] Laser cleaning mainly utilizes the characteristics of high energy density of laser, that is, a focused laser beam directly irradiates pollutants (or paint, rust, etc.) to cause physical or chemical changes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B7/00B08B13/00G02B26/10
CPCB08B7/0042B08B13/00G02B26/105
Inventor 樊心民李英德孙永志黄小东张建心李厚荣
Owner WEIFANG UNIVERSITY
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