在生产加工过程中 ,需要用类似于靠模板的工装设备来检验加工工件的准确度。在对这类工装本身进行检测的过程中 ,用不同的测量方法会产生一些误判 ,本文根据在三坐标测量仪中采用的各种测量方法的比较提供参考。设有一圆弧内型面靠模板需要进行测量 ,其设计精度及所需测量尺寸 In the production process, you need to use a similar template by the tooling equipment to verify the accuracy of the workpiece. In the process of testing such tooling itself, using different measurement methods will produce some misjudgment, this article based on the CMM used in various measurement methods to provide a reference. With a circular arc inside the template needs to be measured, the design accuracy and the required measurement size