基于分段刀轨S曲线加减速控制的进给速度优化研究

Research on Feed-rate Optimization Based on S Curve Acceleration and Deceleration Control of Piecewise Tool Path

针对采用恒定进给速度加工复杂曲面的加工效率不高问题,研究了基于分段刀轨加减速过渡的进给速度优化方法。以刀轨几何特点和机床运动学特性为约束,将刀轨进行分段并为每个刀轨段规划进给速度;在相邻的刀轨段中,以S曲线加减速控制中的加速和匀速或匀速和减速方式对进给速度进行过渡处理。实验结果表明了文中方法是可行和有效的。

Aiming at the problem of lower efficiency of complex mesh surface machining with constant feed-rate a method for feed-rate, optimization based on S curve acceleration and deceleration control of piecewise tool path is researched. With constraints of kinematic characters of machine tool and geometric characters of tool path, tool path segments are obtained, and feed-rates are planned in these segments, then feed-rates transition of adjacent segments are processed by types of acceleration and constant or con- stant and deceleration of S curve transition. Experimental result indicates that the proposed method is feasible and effective.