METHOD FOR WORKING SURFACES OF REVOLUTION AND TOOL FOR PERFORMING THE SAME Russian patent published in 1999 - IPC

FIELD: machine engineering, namely working precise surfaces of revolution in parts such as rolling bearing races, sleeves, valves and so on. SUBSTANCE: method is realized with use of tool having radially moving main and additional abrasive blocks. Tool and worked part are subjected to relative rotation and lengthwise reciprocation motion. Main blocks are imparted to radial motion at engaging with surface of part after idle removal of additional blocks, then additional blocks are imparted to radial motion after idle removal of main abrasive blocks. Additional abrasive blocks are imparted also to subsidiary oscillation motion along generatrix of worked surface. Tool for performing such method is provided with first and second spring-loaded pistons with large and small diameters respectively arranged in central coaxial cavities of tool body. First piston is mounted with possibility of contact of its inner cone surface with outer cone surface of lengthwise dents on shoes of main set of abrasive blocks. Second piston is mounted with possibility of contact of inner cone surface of sleeve with cone surfaces of members carrying shoes of other set of abrasive blocks. There is slide gate on rear rod of small-diameter piston for controlling cutting fluid supply to different sets of abrasive blocks. EFFECT: enhanced efficiency of method, improved design of tool. 2 cl, 10 dwg