机械传动非线性因素对数控加工精度的影响

The influence of nonlinear factors of mechanical transmission on the NC machining accuracy

数控机床机械传动精度对零件的加工精度有较大影响。通过分析数控机床机械传动部件的非线性因素,得出影响数控机床定位精度和轮廓跟随精度的原因,并提出提高定位精度和轮廓跟随精度的措施。

The machining accUracy is greatly affected by the precision of mechanical transmission of the NC machine. Through anatyzing the nonlinear factors of mechanical transmission components of the NC machine, the reasons for affecting the positioning accuracy and the contour - following accuracy are obtained. Therefore the methods of improving the positioning accuracy and the contour - following accuracy are put forward.