Underwater welding robot for ship

By designing an underwater welding robot for ships, and utilizing a sealed box, electromagnets, and laser welding systems, the stability and efficiency issues of underwater welding devices under wave impact were solved, achieving efficient and accurate welding results.

CN224128834UActive Publication Date: 2026-04-17QINGDAO GUOSHI INTELLIGENT EQUIP TECH CO LTD
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Patent Information

Application Number
CN202520989914.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-20
Publication Date
2026-04-17
Estimated Expiration
2035-05-20

AI Technical Summary

Technical Problem

Existing underwater welding equipment suffers from low welding stability and low efficiency under wave impact, which limits the development of deep-sea welding technology.

Method used

Design an underwater welding robot for ships. The robot uses a sealed box and sealing ring to ensure that the device fits tightly with the welding position. It uses an air pump and air inlet valve to keep the inside dry. It uses an electromagnet and a fitting rod system to ensure stability. It combines a laser welding machine and a welding wire feeding system to achieve efficient welding.

Benefits of technology

It improves the stability and efficiency of underwater welding, ensures welding results, extends the service life of the equipment, and enhances the accuracy and efficiency of welding.

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Abstract

The utility model relates to the technical field of underwater welding, in particular to a ship underwater welding robot which comprises a robot body, a sealing box is fixed at the rear end of the robot body, an air box is fixed in the robot body, an air pipe is fixed at the rear end of the air box, and an attaching rod is arranged in the robot body. A supporting disc is fixed to the rear end of the attaching rod, a moving rod is arranged at the rear end of the supporting disc, a positioning plate is fixed to the rear end of the moving rod, a laser welding machine is fixed to the rear end of the positioning plate, a welding wire positioning disc is arranged at the left end of the laser welding machine, a water outlet pipe is arranged at the bottom of the sealing box, and a plurality of positioning rods are further arranged outside the robot body. An electromagnet is arranged at the rear end of each positioning rod; a place is provided for welding of the laser welding machine through the sealing box, the sealing ring can guarantee that the whole robot is tightly attached to the position needing to be welded, and therefore it is guaranteed that the interior of the sealing box is dry, and the welding effect is guaranteed.
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