Positioning tool for welding integrated circuit board

The utility model discloses a positioning tool for welding an integrated circuit board, which belongs to the technical field of circuit board processing and comprises a base and a circuit board, a mounting frame is fixedly mounted on the rear side of the upper end of the base, an adjusting assembly is arranged on the front side of the top end of the mounting frame, and a connecting plate is arranged at the bottom end of the adjusting assembly. Supporting frames are fixedly mounted at the left end and the right end of the mounting frame correspondingly, two symmetrically-distributed positioning assemblies are arranged above the base, a movable groove is formed in one side of each supporting frame, a movable block is movably connected into each movable groove, and a second motor is fixedly mounted at the upper end of one side of each supporting frame. The output end of the second motor is rotationally connected with a gear shaft, and a positioning seat is arranged on the left side of the gear shaft. Therefore,