我厂工具车间在57年派人到哈量学习螺纹量规加工,在该厂也学习了使用比较方法测量螺纹量规平均直径。回厂后便做了两付简单工具(车间一付,计量分室一付)装在刻度值为0.001毫米的立式比较仪上(参看附图 a)用来测量量规与丝锥平均直径,效果很好。但是使 I plant tool workshop sent to Kazakhstan in 57 years to learn thread gauge processing, the factory also learned to use the comparative method to measure the average gauge thread diameter. After returning to the factory, two simple tools (one for the workshop and one for the metering chamber) were installed on a vertical comparator with a graduation value of 0.001 mm (see Figure a) to measure the average diameter of the gauge and tap it is good. But make