| 摘要 |
<p>The invention relates to a device ( 10 ) for cutting a workpiece ( 38 ), mounted onto an elongate rod ( 36 ), into a spiral formation. The device includes a frame ( 12 ) defining a workspace ( 14 ), and a locating mechanism ( 34 ) for locating the rod longitudinally along the workspace. A chuck ( 40 ), rotatable about an axis of rotation, is located in the workspace for holding and rotating the work piece about an axis co-axial with the axis of the rod. A carriage ( 44 ) which is transportable longitudinally along the workspace releasably mounts a cutting tool ( 46 ) extending transversely to the workspace. The device includes also a transport mechanism ( 48 ) for transporting the carriage longitudinally along the workspace and a displacement mechanism ( 34 ) for displacing the locating mechanism, and hence in use the rod, longitudinally along the workspace. The device further includes a drive mechanism ( 52 ) for driving the transport mechanism, the displacement mechanism and rotatingly driving the chuck.</p> |
