摘要
五轴联动数控机床是加工航空航天复杂曲面零件的关键装备,精度受机电系统多源误差的耦合影响。基于此,提出一种基于机电耦合理论的加工精度提升方法,通过构建融合几何与伺服动态误差的综合模型,精准描述误差机理;结合激光干涉仪与球杆仪测量数据,高效辨识误差参数;开发基于实时位置前馈的补偿算法,在线修正预测误差。实验表明,该方法能显著提升轨迹精度,将叶轮试件轮廓误差控制在8μm以内。
Five-axis computer numerical control machine tools are key equipment for processing complex curved surface parts in aerospace,its accuracy is affected by the coupling of multi-source errors in the electromechanical system.Based on this,a method for improving processing accuracy based on the theory of electromechanical coupling is proposed.By constructing a comprehensive model integrating geometric and servo dynamic errors,the error mechanism is accurately described.By combining the measurement data from laser interferometers and ballbar instruments,error parameters can be efficiently identified.A compensation algorithm based on real-time position feedforward is developed to correct the prediction error online.Experiments show that this method can significantly improve the trajectory accuracy and control the contour error of the impeller specimen within 8μm.
作者
何峰
HE Feng(Huaian Senior Vocational and Technical School,Huaian 223005)
出处
《现代制造技术与装备》
2026年第1期120-122,共3页
Modern Manufacturing Technology and Equipment
关键词
五轴联动数控机床
复杂曲面
加工精度
机电耦合
误差补偿
five-axis linkage computer numerical control machine tool
complex curved surface
machining accuracy
electromechanical coupling
error compensation
