
An automatic machine tool includes a head having a rotatable spindle and a head-mounted motor for directly driving the spindle. The head is slidably mounted on a main housing by means of a pair of parallel dovetail engagements, the position of one dovetail track member being selectively adjustable transversely along the housing. A main cam inside the housing translates a cam follower secured directly to the head to slide the head in opposition to a bias force exerted against the head by a fluid-...











