Clamping mechanism and polishing device

The utility model discloses a clamping mechanism and a polishing device. The clamping mechanism comprises a base, a clamping rotating piece and a plurality of clamping assemblies. The clamping rotating piece is rotatably arranged on the base; the multiple clamping assemblies are sequentially arranged on the base in the circumferential direction of the clamping rotating part, each clamping assembly comprises a clamping part and a clamping rotating part connected with the clamping part, the clamping parts are used for clamping workpieces, the clamping rotating parts are connected with the clamping rotating parts, and the clamping rotating parts are used for clamping the workpieces. And the clamping rotating piece rotates to drive the clamping rotating piece, the clamping piece and the workpiece clamped by the clamping piece to rotate together. According to the clamping mechanism, the clamping rotating piece and the multiple clamping assemblies are arranged, the clamping rotating piece can drive the multiple cla