| 摘要 |
PROBLEM TO BE SOLVED: To provide a cylinder grinding method, and a cylinder grinding attachment suitable for high speed precision grinding of a miniature small diameter bearing inner race. SOLUTION: A workpiece outer peripheral surface is ground by a grinding wheel 3, by holding the workpiece outer periphery by a shoe 4, by sandwiching a workpiece 6 between a main spindle reference end surface 11a and a pressing surface 21b of a floating member 21 of a carrying pressing part 2. The floating member is energized in the workpiece direction by a small diameter ball 23, and the pressing surface presses opposed workpiece end surfaces 6b by this energizing force. A floating member pressing surface 21b uniformly presses the workpiece end surfaces by the whole pressing surface by following after the opposed workpiece end surfaces 6b by the automatic aligning action of the floating member 21 to the small diameter ball 23. Since the workpiece 6 rotates by being stably held with the main spindle reference end surface 11a and the shoe 4 as a reference by this whole pressing surface uniform press, precision grinding work is performed. Since the floating member 21 is small in mass, rotation-starting or stopping is instantly performed. COPYRIGHT: (C)2005,JPO&NCIPI
|
