INTERPOLATION METHOD OF ARC AND SEGMENT DEPENDENT UPON DIGITAL DIFFERENTIAL ANALYZING SYSTEM IN NUMERICAL CONTROL

摘要

PURPOSE:To simplify the whole of constitution and a use method by unifying operation systems for arcs and segments to make it possible to use registers commonly and making it possible to use the polar coordinate system besides the X-Y orthogonal coordinate display. CONSTITUTION:Integrators Gx and Gy have input value register Ix and Iy and remainder numeric registers Rx and Ry which have the same memory capacity as they, and the integrating operation is performed by gates G which are operated by receiving clock pulses from clock CL. Output pulses DELTAy and DELTAx from Rx and Ry are led to the external from output gate G3 to become command pulses of the Y-axis side and the X-axis side, and simultaneously, the DELTAx pulse and the DELTAy pulse are fed back to Ix and Iy respectively through feedback pulse gate G2. Preset registers A and B are selected by selector S1 at an idle operation time and an actual operation time respectively and are set and displayed with a scale common to the angle and the length which indicate a circuit angle and a linear displacement.