Spiral finned tube welder

The utility model relates to a spiral finned tube welder. The spiral finned tube welder comprises a conveying guide rail, a welding table arranged at the front end of the conveying guide rail, and a steel belt conveying rack located on the front portion of the welding table, wherein a traveling table driven by a feeding driving mechanism is installed on the conveying guide rail in a sliding mode, a chuck driven by a rotary driving mechanism is installed on the traveling table in a rotary mode, a high-frequency welding gun is installed on one side of the welding table, an obliquely arranged steel belt guiding groove is formed in the other side of the welding table, a steel belt winding roller is installed on the front portion of the steel belt conveying rack in a rotary mode, a steel belt guiding roller is installed on the rear portion of the steel belt conveying rack and located over the steel belt guiding groove, a steel belt positioning wheel matched with the steel belt guiding groove is installed on the welding table and located below the high-frequency welding gun, a steel belt clamping groove is formed in the surface of the steel belt positioning wheel in an annular mode, and a base tube positioning mechanism is installed on the welding table and located below the steel belt guiding groove. The welder has the advantages of being simple in structure, convenient to operate and firm in welding, and the surface of a welded product is attractive.