DEVICE FOR PRECISELY POLISHING OUTER CYLINDRICAL SURFACE OF PLATE PART, AND TAPER ERROR ADJUSTMENT METHOD THEREFOR

摘要

A device for precisely machining an outer cylindrical surface of a plate part by using a polishing technology on a polishing machine or a grinding table comprises a circular bottom plate (1), oblique guide rails (3), stop blocks (8), pressing plates (4), copper pressing blocks (6), a dense-ball shafting (14, 15, 16, 18, 19), cutting boards (12), friction driving wheels (24), a direct-current motor (22), a power supply (21), an LED lamp (2), and a shield body (27). According to a working principle that a bus is revolved around a fixed axis to form a cylindrical surface, cuter feed is not required in the machining process, and radial continuous and automatic fine cutting feed of the plate part is implemented by thinning the circular base plate with the bottom surface tangent to the bus in the same direction in the polishing process; the mounting precision and the machining precision of the bus of the plate part are determined by using a light gap method. The precise adjustment of the axial taper error of the plate part is implemented by using a method in which a gasket is added on the working surface of an oblique guide rail or a stop block. The device can implement the ultra-precision machining of the outer cylindrical surface of the plate part on a submicron level and even a nanometer level, and has the advantages of easy operation, convenient adjustment and low costs.