数控机床垂直度误差分析与软件补偿

文章分析数控机床垂直度误差。当机床导轨存在垂直度误差时,加工位置和轮廓就会出现误差,主要包括孔的位置误差、直线和圆弧轮廓误差。根据垂直度误差的特点,可以得出误差计算公式,根据公式可以计算出点的误差,进而得出直线和圆弧的轮廓误差,计算误差后利用matlab软件仿真出误差曲线,以确定误差的分布并采用软件补偿的方式。同样利用误差公式可以确定补偿曲线,用VC软件编程对轮廓进行预处理,生成补偿曲线,即实现了误差的软件补偿。

NC Machine Tool Perpendicularity Error Analysis and Software Compensation

This paper analysis NC machine tool perpendicularity error.Machine tool guideways perpendicularity error brings hole position,line and arc contour error.We work out the error formula according to the error feature,base on the formula,we can calculate point or contour error,and then simulate the error curve with matlab,so we can see the error distribution and adopt software compensation.We can calculate compensation curve with the same method,VC was used to preprocess the contour and create compensation curve,then we implement error software compensation.