| 摘要 |
A tapered mounting for cutters which automatically provides accurate positioning of a cutter with respect to a holder. More particularly, the tapered mounting provides a concentric and perpendicular mounting of the cutter with respect to a centerline of rotation of the holder. The tapered cutter mounting in part provided by a frustoconically shaped shank, which is provided with one or more keys. The tapered mounting is further in part provided by a conically shaped bore in the cutter, the conically shaped bore having keyways for accepting the keys. The conically shaped bore surface is dimensioned to firmly engage the frustoconically shaped shank surface so that the cutter is precisely aligned concentrically and perpendicularly with respect to the centerline of rotation of the holder. The cutter hub is held fast with respect to the holder by operation of a hold down screw or bolt which threadably engages with respect to the holder.
|
