Laser marking machine with calibration function

The utility model discloses a laser marking machine with a calibration function, which comprises a working table and is characterized in that a concentric-square-shaped frame is fixedly arranged in the middle of the upper end of the working table, a workpiece is movably connected in the concentric-square-shaped frame, a fixing plate is fixedly arranged on the rear side of the middle of the upper end of the working table, a sliding groove is formed in the front end of the fixing plate, and the workpiece is movably connected in the sliding groove. A sliding machining device is arranged in the sliding groove, a clamping device is arranged on the rear side of the upper end of the sliding machining device, the sliding machining device comprises a lead screw, a first servo motor is fixedly installed at the upper end of the lead screw, a sliding block is in threaded connection with the upper portion of the outer surface of the lead screw, and a sliding plate is fixedly installed at the front end of the sliding block