在机械制造业中,常会遇到一些含有内球面、弧面的工件。由于这类零件的球半径或弧半径不能用普通量具直接测量,所以,加工中常使用样板进行检测。这种方法虽然比较直观,但是不能得知实际的数值。如果采用下述方法进行测量,则可以弥补这种不足。 In the machinery manufacturing industry, often encounter some containing the spherical surface of the workpiece. Due to the ball radius or arc radius of such parts can not be measured directly with ordinary measuring tools, so the processing is often used to detect the template. Although this method is more intuitive, but can not know the actual value. If you use the following method of measurement, you can make up for such shortcomings.