形状误差和位置误差在机械加工中是无法避免的,导致产生状形位置误差的原因很多,归纳起来大致可分为下列两个方面: 1.工件的变形。 2.设备工装(夹具、刀具等)的误差。设备和工装方面的原因比较清楚,例如机床轴的回转精度和轴方窜动,机床导轨的平直度,机床主轴中心线和导轨的平行度和垂直度等机床误差可导致工件产生圆柱度、平面度、垂直度、同轴度、跳动等形状位置误差。要防止或减少由于这些设备和工装方面的原因导致形状位置误差的产生,可从这些误差产生 Shape error and position error in machining can not be avoided, resulting in shape-shaped position error caused by many, summed up in general can be divided into the following two aspects: 1. Workpiece deformation. 2. Equipment tooling (fixtures, tools, etc.) error. Equipment and tooling aspects of the reasons are relatively clear, such as machine tool axis rotation accuracy and shaft movement, machine tool guide straightness, machine tool spindle centerline and guideway parallelism and verticality and other machine errors can cause the workpiece to produce cylindrical, Flatness, verticality, coaxiality, beating and other shape position error. To prevent or reduce the generation of errors in shape and position due to these equipment and tooling,