When welding nuclear power product components,wireless rotary TIG welding head need to be fixed on the product to carry out overlay welding of hole inner walls and end surfaces or assembly welding of grooves,this paper designs a special frame for wireless rotary TIG welding head by using structural design,numerical simulation and optimization methods on the basis of load and actual working conditions of the wireless rotary TIG welding head.The design adopts 3-beam and 4-column structure with flexible control components to keep the welding head in horizontal working position and to meet the technical requirements of wireless rotary TIG welding head and welding condition.
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