Verbesserungen in numerischen Steuerungseinrichtungen

摘要

A numerical control device for such as machine tool operation, in which position and speed of movement of the tool or the workpiece is automatically effected in accordance with a preset program and certain recorded preselected information. The control provides for movement along a segment of the desired path generally in three phases: 1) acceleration to a predetermined maximum speed; 2) constant speed, and, 3) deceleration to zero speed. However, provision is also made for continuous movement along adjacent path segments through elimination of the third phase of the first segment.