柔性S型加减速控制算法研究

Research on S-shaped Acceleration and Deceleration Algorithm with High Flexibility

为满足高速高精数控加工的要求,提出了一种柔性S型加减速控制模型。该模型能够减少加工过程中机床振动,避免产生较大的冲击。本文结合控制的思想,为不同路径设置不同的加加速度最大值。通过相邻路径间的夹角对最大加加速度进行调节,进而实现对系统的柔性控制。实验结果表明,该算法在避免较大冲击的前提下,能够实现路径间的高速衔接,有效提高了加工效率。

To satisfy high speed and high accuracy Numerical Engineering machining,a new S-shaped Acceleration and deceleration control model of high flexibility was proposed.The proposed model can avoid intense vibration in high speed NC machining.With the idea of control,this thesis set different maximum jerk for different paths.The angle between two contiguous paths determines the maximum jerk of the front path,and thus the system was controlled with high flexibility.Experimental results demonstrated that the proposed algorithm realized high speed machining of consecutive paths,and the productivity was highly improved.