基于X-C两轴联动磨床偏心轴廓形误差分析及补偿方法研究

Study on Error Analysis and Compensation Method of Eccentric Shaft Profile based on X-C Two-Axis Linkage Grinder

针对现有偏心轴零件的精密磨削工艺的需求,主要对偏心轴的磨削机理、廓形误差分析及误差补偿方法等进行了深入的研究。首先,通过砂轮和偏心轴的几何位置关系推导出X-C两轴联动的数学模型;然后分析了X轴方向的安装误差、砂轮磨损及砂轮架导轨直线度误差等静态误差对偏心轴廓形误差的影响并提出一种基于X轴方向的安装误差补偿方法;最后,搭建试验平台进行测试。试验结果验证了偏心轴磨削机制的数学模型、廓形误差补偿方法的正确性。

Aiming at the demand of precision grinding technology of eccentric shaft parts,mainly make a deep study on the grinding mechanism,profile error analysis and error compensation method of eccentric shaft.Firstly,the mathematical model of X-C two-axis linkage was deduced by the geometric position relation of grinding wheel and eccentric shaft,then the influence of static error such as X-axis installation error,grinding wheel wear and straightness error of wheel frame rail on eccentric axis profile error was analyzed,and an installation error compensation method based on X-axis direction was proposed.Finally,built an experimental platform for testing.The experimental results verify the correctness of the mathematical model and profile error compensation method of the eccentric shaft grinding mechanism.