Underwater welding local mask with welding line tracking function

Abstract

The invention relates to an underwater welding local mask with welding line tracking function, which is characterized by comprising a mask body, wherein the top of the mask body is provided with a mask cover; a spoiler with a plurality of through holes is arranged below the mask cover; the mask cover is provided with a drain gas connector; a welding gun passes through the mask cover and the spoiler and is arranged in the mask body; a connected part of the welding gun and the mask cover is provided with a sealing element; a tracking camera assembly is arranged in the mask body; the side wall of the mask body corresponding to the tracking camera assembly is provided with a window; the window is circumferentially in sealed connection with a sensor assembly arranged outside the mask body through a sensor fixing seat; the sensor assembly and the tacking camera assembly are electrically connected with a control system outside the mask body; and the bottom of the mask body is circumferentially provided with a flexible ring element. The underwater welding local mask is simple and skillful in structure and convenient to operate, and can provide a local waterless environment for the welding, so the underwater welding local mask can be widely applied to the local dry automatic underwater welding process.

Description

technical field [0001] The invention relates to a partial cover for welding, in particular to a partial cover for underwater welding with a welding seam tracking function. Background technique [0002] Most of the current underwater welding local covers are cylindrical, and generally consist of three parts: the upper observation and drainage gas circuit device, the middle cover body, and the bottom flexible annular contact part. The upper observation and drainage gas circuit device generally includes air intake device, observation device, etc.; the side wall opening of the middle cover body is used to install the welding torch; the flexible ring-shaped contact part at the bottom is provided with a flexible part to contact the workpiece. Porous materials such as brushes and sponges. During operation, compressed gas is injected into the partial cover, and the gas pressure discharges the water in the partial cover from the gaps and gaps of the flexible part, ensuring that ther...

AI Technical Summary

Problems solved by technology

When the cylindrical partial cover is used for underwater welding, it is inconvenient to install the sensor on the surface of the partial cover, and the processing of the parts is complicated; and the cylindrical partial cover has only one degree of freedom in diameter on the surface parallel to the workpiece. In the case of a non-circular shape, the size along the direction of the weld and the size perpendicular to the direction of the weld are not independent and restrict each other, which is not conducive to the design

[0003] The current partial hood is mostly used for manual welding, which is welded by hand or installed on other equipment. The partial hood itself has no function of tracking the weld seam, and the conventional seam tracking sensor used on land cannot be used for underwater welding.

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