[Science News welding] Welding robot to achieve multi-layer and multi-channel

How to realize multi-layer and multi-channel welding robot?

How does the welding robot achieve multi-layer and multi-pass welding? With the continuous advancement of automation and intelligence in the welding industry, welding robots are used to replace traditional welding, and medium and thick plate workpieces often appear in ships, large tanks and high-pressure vessels. Traditional welding has technical difficulties for medium and thick plate welding, and welding robots achieve stable welding through multi-layer and multi-pass welding.

How to realize multi-layer and multi-channel welding robot?

Precise positioning and motion control

The welding robot needs to be equipped with a high-precision motion control system, which can precisely control the moving track and speed of the welding gun. Through the preset welding procedure, the robot is able to accurately move the welding torch to the specified welding position.

Welding path planning

According to the welding requirements, the path of multi-layer and multi-pass welding is designed in advance. This needs to take into account the structure of the workpiece, the requirements of the weld, and the mobility of the robot. The path planning software generates a detailed welding trajectory, including the starting point, the end point, and the transition path between each layer and each path.

welding technique

The welding robot should be equipped with welding technology suitable for multi-layer and multi-pass welding, such as MIG/MAG, TIG or arc welding. According to different welding techniques, welding parameters such as current, voltage, welding speed and wire diameter are adjusted to obtain the desired welding quality.

process control

Integrate welding path planning and welding technical parameters into the robot control program. The multi-layer and multi-pass welding program is input into the robot by way of teaching or off-line programming.

The welding quality of multi-layer and multi-pass welding

It is worth noting that in the welding of the first layer of weld, the welding robot is equipped with a welding positioner to achieve the preheating of the second layer of weld passage, so that through the flipping operation of the welding positioner, multi-layer and multi-pass welding of multiple welds can be realized, improving welding efficiency and stabilizing welding quality.