| 摘要 |
PURPOSE:To polish a work sphere in a high precision by avoiding any variations, etc., in abrasive precision to the utmost in relation to many work spheres. CONSTITUTION:In a sphere polishing device, having a fixed plate body 2 oppositely installed with a specified clearance from a turning plate body, rotating the turning plate body and holding a work sphere between the turning plate body and the fixed plate body 2 for pressurization whereby rolling and polishing work sphere, these recess grooves 10a to 10c are formed in the fixed plate body 2 in the circumferential direction. In addition, a lot of working fluid feeding ports 13 are installed randomly over the whole circumferential area among these recess grooves 10a, 10b and 10c, and between the recess groove 10a and an outer circumferential part 11 of the plate body as well as between the recess groove 10c and an inner circumferential part 12 of the fixed plate body 2 respectively, and then the working fluid is fed to the fixed plate body 2 from these working fluid feeding ports 13. |
