Papers by Keyword: Precise Ball

Abstract: Dual-rotating plates lapping method is a new type of ball machining technology, in which the spin axis angle of the ball could wiggle up to 180°. An investigation was made to verify the motion model of the dual-rotating plates lapping. The ball motion parameters, such as revolution speed, spin speed and spin axis angle were detected experimentally. The results show that the calculated values and the measured ones of the ball motion parameters are almost identical. The motion model of the dual-rotating plates lapping method is thus verified valid.

Abstract: A novel lapping mode is developed on the base of present eccentric v-grooves lapping mode for precise balls. The kinematics analysis shows that the ball spin axis can wiggle up to 180° under the developed mode, so the lapping trace will be dispersed onto the whole surface of the ball. The effect of offsetting and groove radius on the lapping uniformity in the developed eccentric v-grooves, the present eccentric v-grooves and the traditional v-grooves lapping mode are compared, and the advantage of the developed mode is that the impact offsetting is less while the groove radius has no impact.