The invention provides a clamp and method for
polishing a plane optical part. The clamp is a clamp with a rectangular groove shape, and the clamp comprises a base and blocking edges, wherein the baseis a rectangular plate, the periphery of the base is fixedly provided with the blocking edges, and the blocking edges are perpendicular to the base; a groove is defined by the blocking edges and the base, wherein the depth of the groove is smaller than that of the plane optical part; and threads matched with a main shaft of a
grinding and
polishing machine or a
stylus hole matched with a
stylus ofthe
grinding and
polishing machine is arranged on the other surface opposite to the groove surface of the base. According to the clamp and method for polishing the plane optical part, the plane optical part can be directly placed into the clamp when the clamp is used for polishing the plane optical part so that
grinding, polishing and other processes can be carried out, and the plane optical partis conveniently taken out after being machined; and meanwhile, the base of the clamp base is provided with the
stylus hole or the threads, so that disassembling is convenient, the operation is simple, the damage caused by falling of the optical part is avoided, and the potential deformation caused by taking-out of the plane optical part after
machining is finished through a dispensing method is also avoided, so that the product qualifying rate is improved.