| 摘要 |
<p>A boring machine tool comprising a supporting element (2), a hollow spindle (4) arranged inside said supporting element (2), a boring bar (3) arranged inside said hollow spindle (4) and rotated by the hollow spindle (4) around a rotation axis (A), an electric motor (5) that rotates said hollow spindle (4) around said rotation axis (A) said electric motor (5) comprising a stator (7) that is suppliable by a source of electric power and a rotor (8) splined directly on said hollow spindle (4).</p> |
