Welding platform for oil transportation special-shaped pipe fittings

The utility model relates to a welding platform for an oil transportation special-shaped pipe fitting, which comprises a U-shaped bottom plate, a fixed vertical rod and an adjustable vertical rod which are vertically arranged upwards and are parallel to each other are connected onto the U-shaped bottom plate, a three-dimensional locking chuck is mounted on the fixed vertical rod, two three-dimensional locking chucks are mounted on the adjustable vertical rod, and the two three-dimensional locking chucks are connected onto the U-shaped bottom plate. A transverse supporting rod is clamped on each three-dimensional locking chuck, and a universal coupling head capable of being locked is fixed at the free end of each transverse supporting rod; a short pipe clamp and a flange clamp are fixed to the two universal connectors corresponding to the adjustable vertical rod respectively, and the other flange clamp is fixed to the universal connector corresponding to the fixed vertical rod. The lower end of the adjustable