Optical glass coating clamp

An optical glass coating clamp comprises a fixing base, a limiting frame fixedly connected to the fixing base, a rotating rod rotationally connected in the limiting frame, a gear fixedly connected to one end of the rotating rod, a fixing block fixedly connected to the rotating rod, an electric push rod fixedly connected to the upper end of the fixing block, and a vacuum pump suction cup fixedly connected to the output end of the electric push rod. First grooves are formed in the two sides of the upper end of the limiting frame, rotating plates are rotationally connected into the first grooves through rotating shafts, heaters are fixedly connected to the bottom ends of the rotating plates, and one side of the optical glass is fixed through a vacuum pump suction cup type clamp, so that the coating completeness of the optical glass is improved; the gear drives the rotating rod and the fixed block to rotate, so that the fixture can fix and steer glass, the moving block is matched with the cleaning block to move b