Fine cutting treatment device for motor shell

The invention relates to the technical field of motor manufacturing, in particular to a motor shell fine cutting treatment device which comprises a fixed base and a movable support, a rotary connecting groove of a semicircular structure is formed in the top of the movable support, and a rotary ring is rotationally mounted in the rotary connecting groove; a plurality of mounting blocks evenly distributed in the circumferential direction of the rotating ring are fixedly mounted on the inner ring wall of the rotating ring, two sets of spring push rods symmetrically arranged in pairs are inserted into the mounting blocks, a supporting wall is fixedly mounted at one end of the fixed base, a lifting through groove is formed in the supporting wall, and a lifting support is slidably connected into the lifting through groove; an adjusting through groove is formed in the lifting support, an adjusting module is inserted into the adjusting through groove, a driving motor is fixedly installed in the adjusting module, and