| 摘要 |
PURPOSE:To provide a spherical surface honing method, which can obtain a high sphericity and which can perform the honing and the measurement of the sphericiry simultaneously. CONSTITUTION:Three axes 1, 2, 3, which cross each other at the spherical center 0 of a spherical ball with an angular distance of 120 degrees, are fixed on the same flat surface, and three grinding wheel shafts 4, 5, 6, in the tips thereof an annular grinding wheel 8 is fixed respectively, are provided. These grinding wheel shafts 4, 5, 6 are made to go forward to hold a spherical ball to be processed with three grinding wheels, and each grinding wheel 8 is rotated and pushed for polishing to the spherical ball to be processed at an equal pressure. At this stage, simultaneously with the rotation of the grinding wheel shafts, one of the grinding wheel shafts is oscillated on the flat surface at a right angle against the flat surface, which includes the described three axes, and including a rotary shaft of the grinding wheel shaft around of the spherical center, and simultaneously, the other two grinding wheel shafts are oscillated integrally, and the spherical ball to be processed is rotated for processing. Furthermore, a probe is arranged on the diameter of the flat to be processed in the vertical direction against spherical ball surface including the three axes. |
