1. The welded pipe production line includes a feeding device, a workpiece positioning mechanism, a storage device, a forming device, a high-frequency welding device, a cooling device, a sizing device, a welded pipe support mechanism, a wire arranging device and a winding device. A workpiece mechanism is arranged on one side of the feeding device, a forming device is arranged on one side of the workpiece mechanism, a high-frequency welding device is embedded on one side of the forming device, and a cooling device is connected on one side of the high-frequency welding device; One side of the cooling device is provided with a shaping device; One side of the sizing device is fixed with a welding pipe support mechanism; One side of the welded pipe support mechanism is provided with a wire arranging device; A winding device is arranged on one side of the wire arranging device.
2. The inner part of the workpiece positioning mechanism includes a fixed frame, a movable shaft, a roller, a fixed rod and a movable tube. The inner walls on both sides of the fixed frame are embedded with movable shafts, and the end of the movable shaft close to the middle line of the fixed frame is connected with the roller. The back of the drum is externally connected with a fixing rod, which is fixedly connected with the fixing frame, and the outer wall of the fixing rod is provided with a movable pipe.
3. Two rollers are arranged up and down in the fixed frame, and the rollers form a rotating structure with the fixed frame through a movable shaft; The movable pipe is movably connected with the fixed rod, and the fixed frame is provided with three movable pipes.