Underwater welding laser head

By employing a stainless steel tube cover and spray disc structure in the underwater welding laser head, and utilizing an inclined spray nozzle and one-way valve design, the problems of smoke discharge and sealing in underwater welding are solved, ensuring welding quality and equipment safety.

CN224273764UActive Publication Date: 2026-05-26SUZHOU UNIV
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Patent Information

Application Number
CN202521238971.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-17
Publication Date
2026-05-26
Estimated Expiration
2035-06-17

AI Technical Summary

Technical Problem

In existing underwater welding processes, the sealed cover makes it difficult for fumes to escape, affecting welding quality and making it difficult to guarantee the sealing performance, which in turn affects welding results and equipment reliability.

Method used

Design an underwater welding laser head, which adopts a stainless steel tube cover and spray plate structure. It uses inclined spray holes to form an umbrella-shaped air curtain to discharge smoke, combined with a one-way valve to prevent water backflow, and uses a fixing component to protect the laser welding head.

Benefits of technology

It achieves effective exhaust of fumes and water, ensures welding quality, prevents laser welding head collision damage, reduces maintenance costs, and improves the reliability of welding equipment.

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Abstract

The utility model relates to the technical field of laser welding, and provides an underwater welding laser head which comprises a stainless steel pipe cover. The connecting plate is fixedly connected to the inner wall of the stainless steel pipe cover, one end of the connecting plate is fixedly connected with the end of a laser welding head, the lower end of the inner wall of the stainless steel pipe cover is fixedly connected with a spraying disc, spraying holes are formed in the bottom end of the spraying disc at equal angles, and one side of the top end of the spraying disc is fixedly connected with a connecting pipe extending out of the stainless steel pipe cover. The bottom end of the connecting pipe communicates with the interior of the spraying disc. The protective cover is movably connected to the bottom end of the stainless steel pipe cover, fixing assemblies are arranged at the top end of the protective cover and the bottom end of the stainless steel pipe cover, an umbrella-shaped protective air curtain can be sprayed out through a spraying disc, a connecting pipe and spraying holes, no water exists in a small area below the end of a laser welding head, and welding operation is facilitated; and meanwhile, high-pressure gas blows away welding smoke, and smooth welding is guaranteed.
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