Cup body grabbing device and polishing device

The utility model discloses a cup body gripping device and a polishing device, and the cup body gripping device comprises a cup body clamping assembly which comprises a pneumatic clamping jaw, a clamping jaw tool, and a servo motor; according to the cup body grabbing device, due to the fact that the pneumatic clamping jaw is adopted to grab or loosen the cup body, and the servo motor drives the pneumatic clamping jaw to rotate, the position of the cup body can be adjusted in the horizontal direction in the grinding process, manual work is replaced by machines, and operators can be prevented from being affected by a large amount of dust and noise generated in the grinding process of the cup body. According to the cup body grinding device, the cup body clamping assembly is adopted to automatically clamp or loosen the cup body, then the cup body is polished through the grinding part, automatic grinding of the cup body is achieved, manual operation is replaced with automatic machining, andthe cup body grinding de