在车床的精度标准中，有车端面的精度要求。在实际工作中，这一加工精度项目存在两个问题：一是如何测量；二是如何计算。正确的测量与计算，对了角车床的真实精度和修理至为重要。１ 测量 以端面凹心为例，如图所示。正常情况下，应从Ａ点进刀，走刀到Ｏ点即完成车端面的加工 Accuracy standards in the lathe, car end face precision requirements. In practical work, there are two problems with this machining accuracy project: one is how to measure and the other is how to calculate. Correct measurement and calculation, the true accuracy of the lathe and repair is important. 1 Measure the end recess as an example, as shown. Under normal circumstances, should be from the A-point feed, go to O point to complete the car end processing