从伺服驱动系统的传动机理出发 ,系统地研究了数控铣削力与伺服驱动系统中所提取的电流信号之间的关系模型 ,并就电流信号的滞后问题提出了一种鲁棒性能很强的智能自适应预测方法 .实验结果表明 ,所提出的间接建模方法 ,解决了智能自适应数控加工中铣削力监测这一瓶颈问题 ,具有重要的工程实用价值 . Starting from the transmission mechanism of servo drive system, the relationship model between numerical milling force and the current signal extracted by servo drive system is systematically studied. Aiming at the lag of current signal, a robust robust intelligence Adaptive prediction method.The experimental results show that the proposed indirect modeling method solves the bottleneck problem of milling force monitoring in intelligent adaptive CNC machining and has important engineering practical value.