Positioning clamp for processing light guide plate

The utility model relates to the technical field of television light guide plate processing, and discloses a positioning clamp for light guide plate processing, which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a connecting column, the upper surface of the connecting column is fixedly connected with a support plate, the upper surface of the bottom plate and the bottom of the support plate are fixedly connected with square cylinders, and the square cylinders are fixedly connected with the bottom of the bottom plate. A sliding hole is formed in the surface of the square barrel, an iron column is arranged on the inner wall of the sliding hole in an attached mode, a first connecting block is fixedly connected to the bottom of the iron column, and springs are fixedly connected to the surface of the square barrel and the side face of the first connecting block. Through cooperation of the iron column, the cylinder, the cylinder, the magnetic ring, the rubber ring, the se