Iterative two-channel servodrive of feed for high precision machine tools and mechanisms

Variant of the simplified diagram of feed design with rotating sliding nut (RSN) is proposed. The kinematical diagram and movement mathematical model of the corresponding two-channel servodrive, constructed by iterative principle on base of the two-motor reducerless machine tool feed with RSN are obtained. Functional and block diagrams of the iterative two-channel system applied to servodrive for high-precision metal-cutting machine tool model 24K60F{cyrillic}4 are considered. The calculation and following taking into account of the compensators of negative load influence control channels are realized. The computer simulation results of a comparative analysis of dynamic and accuracy quality indexes which allow to estimate the efficiency of the proposed two-channel servodrive with RSN are given. References 9, figures 9, tables 2.