The whole system of the grbage truck bucket robotic welding station mainly includes: 6-axis welding robot, 3-axis gantry, welding machine, water-cooled box, water-cooled welding gun, laser tracking system, head-to-tail dual-drive welding positioner (one end is movable), fixture, PLC control system and other parts, which can be reduced or expanded according to project requirements. For different products, the welding positioner and welding fixture are customized to adapt to different lengths, specifications, structures, etc.