| 摘要 |
<p>The present invention relates to a vertical NC lathe and, more specifically, to a vertical NC lathe which allows a vertically formed spindle to have a stable structure. The vertical NC lathe comprises: a spindle which is extended in a vertical longitudinal direction and can rotate to the left and right; a chuck which is fastened to the top of the spindle and supports a workpiece; a ring gear which is mounted in the bottom of the upper part of the spindle in order to rotate the spindle by receiving rotational force transmitted from a driving motor; a bearing housing which is fixated to a bed on a lathe in order to support the rotating state of the ring gear; and a cross roller bearing which is mounted between the ring gear and the bearing housing, and fastens the ring gear to the bearing housing in order to relatively rotate.</p> |
