刀具磨损补偿用压电陶瓷微位移器的特性分析与实现方案

Characteristic Analysis and Implementation Scheme of Piezoelectric Micro Displacement Used for Tool Wear Compensation

通过对所选择压电陶瓷微位移器的电压—位移关系进行实验分析,提出了针对刀具磨损补偿系统的有效方法来消除压电陶瓷非线性、迟滞和蠕变所带来的影响.采用基于平均曲线模型的方法建立补偿系统的数学模型,提出了可消除蠕变影响的针对进给系统的驱动方式.阐明了适用于实际生产的刀具磨损补偿控制系统的原理,为控制系统的设计提供了科学的依据.

Through experiment and analysis of the piezoelectric micro displacement voltage-displacement relations,an effective method for tool wear compensation system is proposed to eliminate the influence of nonlinearity,hysteresis and creep of the piezoelectric ceramics,a mathematical model of compensation system is established by adopting the average curve model,and a drive mode is proposed for feeding system to eliminate the influence of creep.The control system of tool wear compensation principle is clarified to the actual production,which provides a scientific basis for the design of control system.