| 摘要 |
<p>A bearing ring grinding machine comprising a grinding unit arranged to provide machining quality with micron-size tolerances and a reduced grinding cycle period. To this end, the grinding unit (13) comprises a fixed plate (13a) on which are mounted a loader (14c) and a sliding carriage (20) arranged to move horizontally in the direction of the double arrow A. A sliding carriage (20) stopper (21), in the loader (14c), holds the inferior ring (100) applied against the plate (13a) and maintained between two lateral channels. The fixed plate (13a) has a passage opening for a rotatable spindle (22) equipped with a magnetizable socket (23) to support a ring during machining and two adjustable support stops (24, 25) for automatically positioning the rotating ring on the socket (23). At first, the sliding carriage (20) releases the passage for a ring (100) to be grinded toward the magnetizable socket (23) of the rotatable spindle (22), through a magnetic carrier tape (14b) in order to, at a second moment, maintain the ring (100) against the two stops (24, 25) during their machining and in order to, at a third moment, transfer the grinded ring (100) from the support position toward an automatic discharge device (15).</p> |
