Concave embedding type single surface precise grinding disc

A concave embedding type single surface precise grinding disc is characterized in that a base is cylindrical, grooves are formed in the upper surface of the base, a through hole coaxial with the groove is formed in the center of each groove, threaded through holes are formed in four corners of the bottom surface of each groove, adjusting bolts are arranged in the threaded through holes, and the adjusting bolts are meshed with the threaded through holes. A glass washer is arranged at the upper ends of the adjusting bolts, the glass washer corresponds to the interiors of the grooves in length and width, a glass cover plate to be treated is arranged at the upper end of the glass washer, and the glass cover plate corresponds to the interiors of the grooves in length and width. The base and the glass washer are made of P20 die steel. According to the concave embedding type single surface precise grinding disc, the glass plate does not need to be fixed with wax, time for taking down the ground glass plate is short, the productivity is high, no damage is caused in the process of taking down the well-ground glass plate, the yield of finished products is improved, the treated glass cover plate has a smooth surface and is uniform in thickness and good in transparency without press marks and dents.