Harmonic reducer part machining device

The invention relates to the technical field of speed reducers, in particular to a harmonic speed reducer part machining device which comprises a machine table, a rotary drum, a cutter table and an adjusting mechanism, the rotary drum is arranged on the machine table and can rotate around the axis of the rotary drum, a clamping part is arranged on the rotary drum, and the clamping part is configured to be capable of clamping a workpiece and sliding in the direction perpendicular to the axis of the rotary drum; the cutter table is arranged on the machine table and can slide in the axis direction of the rotary drum, a cutter is arranged on the cutter table and can cut the workpiece when the rotary drum rotates so that the workpiece can form an oval structure, and the adjusting mechanism is used for adjusting the cutter to rotate in the process that the cutter cuts the workpiece. By means of the structure, the cutting-in point of the tool on the workpiece coincides with the long axis of the oval structure, the t