Automatic deburring device for axle thread part after groove milling

The invention provides an automatic deburring device for an axle thread part after groove milling. The device comprises: a workbench, a linear guide rail laid on the workbench, a first sliding block mounted on the linear guide rail, a deburring mechanism arranged on the first sliding block, and a power device for driving the deburring mechanism, wherein the deburring mechanism comprises a tip, a rotating shaft and an annular threading die. According to the automatic deburring device provided by the invention, the annular threading die abuts against the threaded end face of an axle under the action of spring force, the rotating shaft acts to drive the annular threading die to screw forwards, burrs are removed in the screw-in process, the rotating shaft rotates reversely after the annular threading die is in place, the threading die retreats, air cylinders on the two sides pull back the tip, and manual operation is not needed in the whole process; the labor intensity of workers is effectively reduced, and the l