DEVICE FOR SUPER-FINISHING TOROIDAL SURFACES OF RACES Russian patent published in 1996 - IPC

FIELD: mechanical engineering. SUBSTANCE: device comprises drive for rocking abrasive block with a block holder, two identical double-arm levers, bottom arms of which can move back and rotate about the center of curvature of a race. The drive is mounted on the base. The levers are rigidly secured to the block holders arranged symmetrically in the diametric plane from the opposite sides of the race. The axes of movements of the levers are in the plane perpendicular to the axis of the ring and pass through the center of curvature of the race. The drive for feeding blocks to a part is made up as a fluid-pressure actuated mechanism interposed between the top arms of the levers. In addition the fluid- pressure actuated mechanism for reciprocating the levers is made up as two axially alined cylinders with pistons and passageways for supplying fluid. The block holder is made up as a sleeve the bottom of which is provided with a flexible member connected with the abrasive block. EFFECT: enhanced efficiency. 4 cl, 2 dwg