FINISHING DEVICE Russian patent published in 1997 - IPC

FIELD: mechanical engineering; finishing of bearing races. SUBSTANCE: multiple-bar cassette has two or several cam 7 mounted in slots of housing of cassette chuck 6 for longitudinal travel and bars secured on cams of holders 11 and moved along cams by means of built-in hydraulic cylinders 10. Mechanism to press bars to machined surface is made in form of rotary disk 8 installed on bearings in cassette housing and provided with projections in form of Archimedes' spiral getting into corresponding slots of cams. Disk is set into rotation through hydraulic cylinder and rack. Bushing 3 is installed in bearings on fixed axle arranged coaxially with headstock of article. Bushing installed for rotation by external drive has eccentric neck on which cassette chuck 6 is secured in bearings by its one end. Inner surface of cassette rests on bearing 12 secured on axle 2. EFFECT: improved quality of finishing. 1 dwg