| 摘要 |
<p>A machine (10) for simultaneously milling and grinding a workpiece comprises milling (12) and grinding (14) wheels rotatable about respective first (A1) and second (A2) parallel axes, the second axis being offset radially with respect to the first axis. A single motor (16) drives the milling and grinding wheels at different relative speeds. The grinding wheel is mounted to a hub (58) which includes an axially flexible portion to enable the grinding surface to be axially adjusted. The milling wheel includes an array of milling cutters (36) with a large gap formed between leading and trailing ones of the the milling cutters to accomodate the offset grinding wheel. The radial spacing of the milling cutters from the axis of rotation of the milling wheel progressively increases from the leading milling cutter to the trailing milling cutter to compensate for the stock material uncut by the missing teeth derived from the cutter rotation and lateral feed of the cutter relative to the material to be machined.</p> |
