Zirconium oxide ceramic watchcase polishing device

The utility model discloses a zirconia ceramic watchcase polishing device, and relates to the technical field of zirconia ceramic surface treatment. The polishing machine comprises a polishing rack, a watchcase clamping device is mounted on the polishing rack; a polishing agent circulating device is mounted on the polishing rack; a lead screw sliding block mechanism is installed on one side of the polishing rack. A grinder is mounted on a sliding block of the screw rod sliding block mechanism through a bolt; a polishing piece is mounted in the grinder; the polishing rack comprises a bottom plate; circular grooves are fixedly supported on the surface of the bottom plate through a plurality of fixed upright posts; the watchcase clamping device comprises a stepping motor and four rotating shafts which are arranged in an annular array and rotatably installed at the bottom of the circular groove in a penetrating mode. Through the combination of the polishing rack, the watchcase clamping device, the polishing agent