| 摘要 |
A rose engine apparatus is disclosed for attaching to a lathe having a lathe bed and a headstock with a rotatable spindle. The apparatus includes a pivotal attaching means for pivotally attaching the headstock with the lathe bed. At least one cam is selectively fixable to a cam attachment means fixed to the spindle of the headstock, each cam having a continuous, variable radius along a peripheral edge thereof. A cam roller is fixed with the lathe bed so as to make contact with the peripheral edge of a selected cam. A biasing spring urges the selected cam against the roller means, such that the headstock pivots with respect to the lathe bed as a function of the variable radius of the selected cam, as the spindle and workpiece rotates. As such, cutting operations can be performed on the workpiece that correspond to the variable radius of the selected cam. The apparatus may be bypassed to allow conventional operation of the lathe without removing the apparatus therefrom.
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