为了提高液压件产品质量,我厂计量室的老师傅急车间生产之所急,坚持自己动手,大胆创新,洋为中用的原则,制造了油封槽卡规(图1),阀体孔沉割槽卡规(图2),内径卡规(图3),等四种规格的专用检具,为保证加工质量创造了条件。这些卡规结构原理基本相同,现以内径卡规为例简介如下: In order to improve the quality of hydraulic parts, I plant measurement room master emergency workshop urgent need to uphold their own hands, bold innovation, the principle of foreign use, creating a seal slot card regulation (Figure 1), the valve hole sink Cutting slot card regulation (Figure 2), diameter card regulation (Figure 3), and other specifications for the four special gages, to ensure the quality of processing to create the conditions. The principle of the structure of these card rules are basically the same, now the card diameter gauge as an example is as follows: