Clamp for optical contour grinder

The utility model discloses a clamp for an optical contour grinder. The clamp for the optical contour grinder comprises a base, a bush, a chuck, a screw rod and a handle. The base is provided with a guide rail. The bush and the chuck are arranged on the two sides of the base respectively. The bush is fixedly connected with the base. The chuck comprises a fixed block and a movable block. The fixed block and the movable block are each provided with a clamping opening. The fixed block is fixedly connected with the base. The movable block is movably connected with the base through the guide rail. The bush is provided with a thread hole. Stop dogs are fixedly connected to the two sides of the fixed block in a detachable mode. The depth of parallelism between the upper surface of each stop dog and the horizontal plane is 0.05 mm. The depth of parallelism between the upper surface of the clamping opening of the fixed block and the upper surface of the clamping opening of the movable block is 0.05 mm. In the using process, people only need to well adjust the height of a workbench when a first part is clamped, and later parts can be machined directly by being clamped to the workbench through the clamp, and therefore it is not needed that the vertical height of the workbench is adjusted every time a part is machined, time is shortened, and work efficiency is improved.