| 摘要 |
A machine for performing cutting operations on a workpiece has a rotatable carrier with several releasable processing heads which have rotatable spindles to hold cutting tools. A carrier drive mechanism is mounted on the machine to drive the carrier until a selected one of the heads is adjacent a spindle drive at the work station. The carrier drive has a crank on a rotatable shaft and a slidable plate with a recess to engage the crank to lock the carrier drive in an accurately predetermined position. The spindle drive has a hook and sliding plate mechanism to connect the selected head to the spindle drive. A latch device for releasably holding each head to the carrier is also disclosed.
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