Precise ceramic thin-wall ring inner hole machining auxiliary device

The utility model discloses an auxiliary device for machining an inner hole of a precise ceramic thin-wall ring, and relates to the technical field of ceramic machining. Comprising an outer cylinder base, and rotating shaft bases are arranged on the peripheral side face of the outer cylinder base in an annular array; a clamping frame is in threaded connection between two end surfaces of the rotating shaft seat; one end part of the clamping frame is inserted into the outer cylinder seat in a limiting manner; the peripheral side surface of the outer cylinder seat is rotationally connected with a gear ring in a limiting manner; and the gear ring is in meshing transmission with the rotating shaft seats. When the gear ring rotates along the outer cylinder base, the gear ring is meshed with the bevel gear on the peripheral side face of the end of the rotating shaft base, so that the rotating shaft base rotates, the clamping frames are in threaded fit with the rotating shaft base, and under the limiting effect of th