| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel polishing machine capable of efficiently cooling a surrounding part of a polishing wheel of the polishing machine, without using a dedicated nozzle or complicated actuator, for solving a problem of complication and expensiveness.SOLUTION: A polishing machine (2) for a bearing ring comprises: a frame; a rotation polishing wheel (6) capable of rotating and moving around a first rotation axis; and a nozzle (150) for injecting (A2) a liquid coolant on a surrounding part (10) of the polishing wheel. The nozzle (150) is attached to a first slide (152) capable of moving by translation movement along a second axis (Y154) vertical to the first rotation axis (X6), and a position of the slide along the second axis is controlled by mechanical link devices (152, 172, 190, 202, 204) coupled to movable parts (170) of the polishing machine, and the positions of the movable parts depend on outer diameter (D6) of the polishing wheel (6). |
