模具生产中,模具工作的稳定性、精确性主要靠导柱和导柱孔的运动精度来保证。因此,模极导柱孔轴心线与其基准端面的垂直度误差,直接影响导柱与上下模板之间的正确运动和模具的装配,一般都有较严的要求。由于模板重量大,导柱孔及模板定位端面光洁度较差,在精密计量仪器上直接测量比较 Mold production, mold work stability, precision mainly by the guide column and guide column hole to ensure the accuracy of movement. Therefore, the mold pole guide hole axis and its reference end surface of the vertical error, a direct impact on the guide column and the template between the upper and lower mold and the correct movement of the assembly, generally have more stringent requirements. As the template weight, guide post hole and template positioning end surface finish is poor, in the direct measurement of precision measuring instruments