Optical mirror surface metal film surface polishing device

The invention discloses an optical mirror surface metal film surface polishing device, which comprises a work platform, a spray gun device and a liquid carbon dioxide cylinder, wherein the spray gun device comprises a spray gun, a needle valve and a supporting member, wherein the spray gun is arranged on the supporting member; a spray pipe is arranged on the front end of the spray gun; a nozzle is formed in the top end of the spray pipe; the needle valve is arranged on the rear end of the spray gun; the supporting member is arranged on a rack; the liquid carbon dioxide cylinder is connected with the spray gun. The device can utilizes liquid carbon dioxide as raw materials for optical film surface polishing; the spray gun can be adjusted at any angle by the device, so that the film mirror effect is uniform, and the problem that the mirror effect is not ideal due to local over-density and over-sparseness can be solved; the device is simple in structure, convenient to use and operate, high in automation degree, good in film mirror surface processing effect, and uniform in mirror surface.