DEVICE FOR CHAMBER ABRASIVE TREATMENT OF PARTS Russian patent published in 2003 - IPC

FIELD: treatment of surfaces of parts by free abrasive; mechanical engineering; treatment of complex surfaces of bodies of revolution, for example cups-resonators, rings, members of lighting and sanitary fixtures. SUBSTANCE: proposed device has base, working chamber with elastic walls and pressure chamber embracing working chamber; pressure chamber is provided with cylindrical walls and cover; device includes also platform, outer circular groove and radial holes and pipe union for delivery of compressed air to pressure chamber. Sliding bearing with radial hole is mounted on axle and is rigidly secured on base. Circular brackets are provided for concentrically securing elastic walls of working chamber in pressure chamber. Pressure chamber is mounted on base for rotation around axle and is connected with said pipe union by means of flexible hose, radial hole of sliding bearing and radial holes of axle. Working chamber is made in form of cone whose base is formed by two circular brackets mounted on cover of pressure chamber and vertex of cone is formed by circular bracket secured on cylindrical wall of pressure chamber. Elastic walls of working chamber are double-layer; outer wall is made from airtight material and inner wall is made from polishing material. EFFECT: improved quality of treatment due to restoration of polishing material in contact zone. 2 cl, 1 dwg