Excavator track welding tool

The utility model relates to the technical field of welding tools, in particular to an excavator crawler belt welding tool which comprises a first supporting table, a first supporting seat is fixed to the top of the first supporting table, a servo motor is arranged at one end of the top of the first supporting seat, and a supporting plate is fixed to the other end of the top of the first supporting seat. And connecting plates are fixed to the two sides of the outer wall of one end of the first supporting table correspondingly, and a collecting box is arranged between the two connecting plates. A plurality of steel plates are sequentially inserted into the positioning rod, so that the steel plates can be sequentially positioned and distributed at the top of the positioning plate, workers do not need to worry about deviation of the positions of the steel plates and do not need to frequently correct the positions of the steel plates, residues generated in the welding process can fall onto the collecting box belo