Adjustable support welding and fixing tool

The utility model discloses an adjustable support welding fixing tool, which relates to the technical field of support welding, and comprises a mounting seat, an electric telescopic rod is mounted above the mounting seat, a movable plate is mounted at the upper end of the electric telescopic rod, an adjusting assembly capable of adjusting a welding position is arranged on the movable plate, and the welding position of the welding position can be adjusted through the adjusting assembly. A first square pipe is connected to the adjusting assembly, a fixed plate is arranged on one side of the movable plate, two sets of second clamping blocks are installed on the side, close to the movable plate, of the fixed plate, and second square pipes are connected to the two sets of second clamping blocks in a clamped mode. According to the device, the position of a first square pipe can be adjusted according to the welding position, the adjustability of the device is improved, two second square pipes in the same direction c