COMMANDE POUR FRAISEUSES

摘要

This invention relates to a control arrangement for an automatic machine tool having a pair of identically profiled parallel master plate cams which are mounted on a movable carrier with their profiles reversed with respect to each other. The profile of a selected one of the master cams is sensed by a main follower which is coupled to control means for controlling a milling tool operating on a rotating workpiece. An auxiliary cam is rotated with the workpiece and an auxiliary follower co-operating with the auxiliary cam is coupled to the carrier to control the displacement thereof. At least one end portion of the profile of the selected master cam is linear and disposed parallel to the direction of displacement of the carrier, whereby the displacement of the selected master cam when the main follower is in contact with a linear portion of the profile thereof does not result in displacement of the main follower.