This welding track carriage is an efficient, intelligent automated welding device designed specifically for curved circumferential welding. Mounted on a dedicated welding track, the welding carriage ensures the welding gun moves smoothly along a predetermined path, achieving uniform, continuous, and high-quality welds. Equipped with a variable speed drive system, the welding track carriage allows operators to flexibly adjust the travel speed to suit different materials, thicknesses, and welding processes.