Device for eliminating stray light in high-power laser head

By setting the first aperture and a plurality of second apertures in the high-power laser head, stray light and main light are eliminated step by step, the problems of excessive heat from the aperture and hot nozzle are solved, and the stability and effect of the cutting process are improved.

CN222679790UActive Publication Date: 2025-03-28JINAN BODOR LASER CO LTD
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Patent Information

Application Number
CN202420288559.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-07
Publication Date
2025-03-28
Estimated Expiration
2034-02-07

AI Technical Summary

Technical Problem

During the cutting process, the aperture is too heated or even burned due to stray light, and the nozzle is prone to hot, which affects the cutting effect.

Method used

A stray light elimination device in a high-power laser head is designed, including a first aperture and a plurality of second apertures, which are arranged in sequence along the laser propagation direction, and the first aperture is close to the nozzle of the laser head. The first aperture and the second aperture are gradually eliminated by the stray light and part of the main light, avoid excessive heat from the aperture, and reduce the nozzle temperature.

Benefits of technology

It effectively avoids the problem of excessive heat from the aperture and hot nozzles, and improves the stability and effect of the cutting process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a stray light eliminating device in a high-power laser head, which comprises a first diaphragm and a plurality of second diaphragms, the plurality of second diaphragms and the first diaphragm are sequentially arranged along the propagation direction of laser, and the first diaphragm is close to a nozzle of the laser head. Stray light and part of main light are eliminated step by step through the first diaphragm and the second diaphragms, and the problem that the diaphragms are heated too much and even burnt due to the fact that a single diaphragm blocks too much light is solved. The temperature of the nozzle in the cutting process can be reduced, the influence of high temperature on a capacitance signal formed by the nozzle and a machining material is avoided, and therefore the cutting process is more stable.
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