Self-lubricating ruby high-precision polishing equipment

The utility model relates to the technical field of polishing equipment, and discloses self-lubricating ruby high-precision polishing equipment which comprises a driving motor, a rotating rod is fixedly installed on an output shaft of the driving motor, a polishing disc is arranged on the outer surface of the rotating rod, a sealing and lubricating mechanism is arranged on the outer wall of the polishing disc, and the rotating rod is connected with the sealing and lubricating mechanism. The sealing and lubricating mechanism is matched with the rotating polishing disc so that ruby can be conveniently polished and can be automatically lubricated, a protruding block is fixedly installed on the outer surface of the rotating rod, the outer surface of the protruding block is movably connected with the polishing disc in a clamped mode, a clamping hole is formed in the polishing disc, and the rotating rod is fixedly connected with the rotating rod through the clamping hole. The clamping holes are movably connected wi