The machine tool is the special double-station (double-grinding head) curved surface copying coated abrasive grinder. Originated in China, the product can fill the domestic blank on surface & side polishing and grinding technology. The machine tool can take the wet-type abrasive belt as the grinding material and carry out the curved surface grinding through the equal proportion copying plate. The product has advanced structure, high geometric accuracy, simple & convenient operation, strong reliability, high production efficiency and other technical advantages. It is applied to side polishing and forming surface polishing & grinding for knives, scissors, measuring tools, hardware stamping parts and die castings.