Auxiliary device of laser marking machine

The utility model belongs to the technical field of laser marking machines, and particularly relates to an auxiliary device of a laser marking machine, which comprises a working table, a marking table is arranged at the top of the working table, a dust collection box is arranged on the periphery of the marking table, two supporting plates are symmetrically arranged on two sides of the dust collection box, a motor is mounted above one side of each supporting plate, and the other side of each supporting plate is provided with a power source. The output end of the motor is connected with a threaded rod, the threaded rod is in threaded connection with a sliding block, one side of the sliding block is connected with a dust blowing box, and a plurality of air nozzles are arranged at the bottom of the dust blowing box. The threaded rod is electrically driven to rotate, the threaded rod drives the sliding block to slide front and back, and the sliding block drives the dust blowing box to move back and forth above the