Universal Five-Axis RTCP Adaptive Dispensing Interpolation System Based on Dual NURBS

This paper proposed a five-axis RTCP adaptive dispensing interpolation algorithm based on dual NURBS curves, to meet the requirement for high dispensing efficiency in the electronic industry. A universal RTCP transformation algorithm is used to transform the programming trajectory to the machine tool control point trajectory for five-axis machines with different configurations. The machine tool control point trajectory and the dispenser head trajectory are fitted by dual NURBS curves separately. The predictor-corrector method solves the curve position parameter at the corresponding time. The corresponding position relationship between the dual curves is determined according to the parameter synchronization relationship, which solves the adaptively adjusted dispensing frequency. A dispensing processing experiment is designed, and results show that the algorithm in this paper can achieve shorter processing time than dual NURBS equidistant dispensing under process constraints.