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基于Filtered-X LMS自适应滤波算法,设计了一种压电作动器来控制刀具与工件的切削力位移,并进行了数值仿真和实际的切削实验。研究结果表明:在相同的切削条件下,基于Filtered-X LMS自适应滤波算法控制的刀具加工精度明显优于传统刀具的加工精度,能有效的减少车刀的振动量,验证了该控制系统的有效性,对于提高车床的加工精度具有重要的意义。
Based on the Filtered-X LMS adaptive filtering algorithm, a piezoelectric actuator was designed to control the cutting force displacement of the tool and the workpiece, and the numerical simulation and actual cutting experiments were carried out. The results show that under the same cutting conditions, the tool machining accuracy based on the Filtered-X LMS adaptive filtering algorithm is significantly better than the traditional tool machining accuracy, can effectively reduce the amount of vibration of the turning tool, and verify the control system Effectiveness, for improving the lathe machining accuracy is of great significance.