Air knife for protecting window lens

Abstract

The invention discloses an air knife for protecting a window lens. The air knife comprises a main body, a protection lens holder, a transfer ring and a lower air cavity, wherein the main body adopts an inner hollow stepped columnar structure, a clamping groove matched with the protection lens holder is formed in the main body, the protection lens holder is embedded in the main body, the upper partof the main body is connected with a window lens component, the bottom of the main body is connected with the upper part of the lower air cavity, gas inlet nozzles allowing high-pressure gas to enterare formed in two lower sides of the main body respectively, an annular air channel is formed in the bottom of the main body and coaxial with the center of the main body, the gas inlet nozzles are communicated with the annular air channel, and the transfer ring is arranged in the lower air cavity and closely matched with the lower air cavity. During usage of the air knife, the wind volume utilization rate is high, powder splashed from all angles can be prevented from flying to the window lens, the airflow at an air outlet is stable and uniform, and the air knife can be specifically used for protecting the window lens. The lens can completely solve the problems of dust pollution of laser output heads and burst due to heating in the laser cladding technology and has higher application and promotion value.

Description

technical field [0001] The invention relates to an air knife for protecting window mirrors, which can be used in the technical field of lasers. Background technique [0002] Laser cladding technology refers to placing selected coating materials on the surface of the coated substrate with different filler methods, melting it and a thin layer of the substrate surface at the same time through laser irradiation, and forming a very low dilution and coating material after rapid solidification. A surface coating that forms a metallurgical combination with the base material, thereby significantly improving the wear resistance, corrosion resistance, heat resistance, oxidation resistance, and electrical properties of the base material surface. [0003] High-power lasers have been used in the laser cladding process for a long time. Due to the influence of sputtered metal powder and high-intensity laser radiation, it is easy to cause contamination or even bursting of the laser window mi...

AI Technical Summary

Problems solved by technology

The existing air knife used to protect the window lens is generally a cylindrical hollow structure, the air flow direction of the air outlet of the air knife is single, the air flow is unstable, the air flow is uneven, the utilization rate of the air volume is low, and the protection effect is not ideal

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