【摘要】 主轴回转误差影响车削工件的加工精度,本文通过对主轴回转误差的分析和研究,提出了一种基于回转误差的车削工件2-D表面形貌检测方法,并建立了车削过程数学模型.MATLAB仿真结果表明,主轴径向回转误差会影响工件的车削半径和表面形貌,进而造成工件的同轴度误差、圆度误差,并增大表面粗糙度.为验证所提方法的有效性,搭建了2-D表面形貌检测平台进行数据采集,得到了主轴在切深方向的回转误差和车削工件的平均半径误差.实验结果表明实验与仿真结果在特性上具有一致性,验证了方法的可行性,对机床的性能调试及提高工件的加工质量具有参考价值.更多还原

【Abstract】 Spindle rotation error affects the machining accuracy of turning workpieces. Through analyses and studies of the spindle rotation error,a 2-D surface topography detection method was proposed for turning workpieces based on the rotation error,and the turning process model was established. The MATLAB simulation results showed that the spindle radial rotation error affects the turning radius and surface topography of the workpiece,resulting in the coaxiality error,roundness error and surface roughness. To verify the effectiveness of the proposed method,the 2-D surface topography detection platform for data collection was built,and the rotation error value of the spindle in the depth direction and average radius error of turning workpieces were obtained.The experimental results showed that the experiment and simulation results are consistent in characteristics,which verify the feasibility of the method and have reference value for the performance debugging of the machine tool and improving the processing quality of the workpieces.更多还原