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Air curtain protection device and protection method for laser cleaning

A protective device, laser cleaning technology, applied in cleaning methods and appliances, chemical instruments and methods, etc., can solve the problems of lens glass burst damage, operator health damage, effective collection of pollutants, etc., to prevent lens from bursting and reduce bursting risk, the effect of preventing endothermic explosion

Active Publication Date: 2017-08-08
山西玉华再制造科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the setting of the existing air blowing nozzles only roughly blows away the pollutants, and it is difficult to absolutely prevent a small amount of pollutants from penetrating or detouring to the vicinity of the lens through convection during the blowing away process, and if the glass of the laser lens is attached Pollutants will absorb and accumulate a large amount of heat, which will cause the lens glass to burst and damage, resulting in production loss. Moreover, if the pollutants are not collected effectively, the pollutants gasified by cleaning the metal surface are very toxic, which will bring harm to the health of the operators. to damage

Method used

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  • Air curtain protection device and protection method for laser cleaning
  • Air curtain protection device and protection method for laser cleaning
  • Air curtain protection device and protection method for laser cleaning

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Embodiment Construction

[0038] figure 2 It is the working diagram of the air curtain protection device for laser cleaning of the present invention, as figure 2 As shown, the embodiment of the present invention provides a laser cleaning air curtain protection device, including:

[0039] The protective cover 20 has a trumpet-shaped inner cavity that is thin at the top and thick at the bottom, the laser cleaning lens 30 is sleeved on the upper end of the inner cavity, and the lower end of the inner cavity has an opening;

[0040] The first air outlet array 21 connected to the high-pressure air pipeline is arranged on the side wall of the inner cavity, and the compressed air discharged from the first air outlet array and the side wall form a protective space 210 surrounding the laser lens;

[0041] The suction port 40 is arranged under the side of the protective cover 20;

[0042] The second air outlet array 22 connected with the high-pressure air pipeline is arranged on the periphery of the lower en...

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PUM

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Abstract

The invention provides an air curtain protection device for laser cleaning and a protection method and can effectively collect pollutants in laser cleaning, guarantee cleanliness of a laser lens and prevent lens glass from being broken and damaged. The air curtain protection device for laser cleaning comprises a protection cover, a first air outlet array, a suction port and a second air outlet array, wherein the protection cover is provided with a horn-shaped inner chamber with a thin upper part and a thick lower part, the upper end of the inner chamber is in sleeve joint with the laser cleaning lens, and an opening is formed in the lower end of the inner chamber; the first air outlet array is formed in the side wall of the inner chamber, and protection space surrounding the laser lens is formed by compressed air exhausted by the first air outlet array and side walls; the suction port is formed sideways below the protection cover; the second air outlet array is formed in the peripheral edge of the lower end of the inner chamber, compressed air exhausted by the second air outlet array surrounds a laser irradiation area on the surface of a cleaned workpiece, and projection of air flow at each air outlet of the second air outlet array on the horizontal plane points to the suction port.

Description

technical field [0001] The invention relates to laser processing protection technology, in particular to an air curtain protection device and a protection method for laser cleaning. Background technique [0002] Laser processing technology is a technology that uses laser beams to interact with material materials to cut, weld, surface treat, drill and micro-process materials (including metals and non-metals). [0003] Laser cleaning is a kind of laser processing technology, which is a photophysical reaction between a high-intensity short-pulse laser and a contaminated layer. Its physical principle can be summarized as follows: [0004] a) The beam emitted by the laser is absorbed by the contamination layer on the surface to be treated. [0005] b) The absorption of large energy forms a rapidly expanding plasma (highly ionized unstable gas), which produces shock waves. [0006] c) The shock wave breaks the contaminants into fragments and is ejected. [0007] d) The light p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B7/00
CPCB08B7/0042
Inventor 赵兵兵段虎明孙俊峰冯杰才赵慧峰
Owner 山西玉华再制造科技有限公司
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