Abstract：A new kind of numerial control (NC) interpolation technology-speed interpolation is proposed, to meet the requirements of the modern NC machining for high accuracy and efficiency.Speed interpolation abandoned the movement pattern which traditional interpolation relies solely on the begin and end of the fitting line to ensure the machining accuracy, instead, with the whole feed rate monotone and micro-precision curve merged fitting as the core idea, cooperating with PVT theory, precision and high efficiency of NC machining can be realized.Laboratory simulation and practical application shows that the machine tool which bases on speed interpolation not only to avoid the frequent start-stop movements in the manufacturing process, but also to ensure the smooth running of the machine tool.As a result, the processing of profile accuracy and surface roughness can be micron magnitude, and the processing efficiency is improved.
2015, Vol. 36 
