| 摘要 |
PURPOSE:To set an axial center to a central position for the circumference as well as to make the circumference grindable in a state of true roundness, by locking a cylindrical work being in eccentric in its axial center and another cylindrical work being harder than the former and in uneccentric in its axial center in solidifying both axial centers in one. CONSTITUTION:A cylindrical guide plate 22 is made to stick to the front and the rear of an eccentric cylindrical work 12, and a hole axial center 1 and another hole axial center 2 are adjusted right rectilinearly. Then, when both are solidified in one and are ground by a centerless grinder, the guide plate 22 is of hard material whereby in proportion as this guide plate 22 is accurately ground, the circumference of the cylindrical work 12 is also ground simultaneously, therefore it is ground and finished up to such a circumference that comes equidistant to the hole axial center 1. |
