Tool clamp of welding robot workstation

The utility model relates to the technical field of robot welding, and discloses a work fixture of a welding robot workstation, which comprises a frame, a transverse plate mounted in the frame, a through hole formed in the upper surface of the frame, a first fixing rod mounted on the inner wall of the through hole, a vertical column mounted at the top end of the first fixing rod, and a connecting plate mounted on the surface of the vertical column. A through hole is formed in the upper surface of the transverse plate, a second fixing rod is installed on the inner wall of the through hole, and a limiting column is installed at the top end of the second fixing rod. According to the utility model, the plurality of limiting columns are arranged, and the second fixing rod at the bottom of each limiting column is matched with the through hole, so that multi-point positioning can be realized, a workpiece or an assembly can be accurately aligned and fixed at a plurality of positions, and the positioning precision and