Double end metal turning

摘要

A machine for turning successive axially fed work pieces at both ends simultaneously by means of a double-ended segmentally actuated collet construction wherein one collet has a fixed collet chuck and the other has a movable collet chuck; and rigidly controlled and guided means to move the latter to simultaneously close both collets in combination with a tool slide which is considerably longer than the distance between the collets and along which are adjustably mounted a plurality of turning tools, and which is actuated in timed relation to the feed and collet actuation. A single cam shaft with adjustable cams controls all motions.