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由于光滑极限量规的结构简单,成本低廉,使用方便,不必看读数就能很快判断工件合格与否,因此目前它仍是机器制造特别是大量生产中的一种重要检测工具。国标GB1957-81《光滑极限量规公差》是为了配合贯彻新国标《公差与配合》而制订的。我们在贯彻新光滑极限量规公差时,发现按原公差表使用,每设计一个量规都要进行计算,这样容易产生差错。特别在生产准备工作中,极限量规设计的工作量较大,重复劳动很多。为了提高设计质量和工作效率,我们将原公差表应计算的部分都计算出来,并冠上相应的<+>
Due to its simple structure, low cost and easy to use, Smooth Limit Gauge can quickly judge whether a workpiece is qualified or not, so it is still an important testing tool in machine manufacture, especially mass production. GB GB1957-81 “smooth limit gauge tolerance” is in line with the implementation of the new national standard “tolerance and cooperation” and formulated. When we implemented the new tolerance limit of smooth and smooth gauge, we found that the use of the original tolerance table, each designed to measure a gauge, so prone to error. Especially in production preparation work, the limit gauge design workload is large, a lot of duplication of effort. In order to improve the quality of design and work efficiency, we will calculate the original part of the tolerance table are calculated, and topped the corresponding <+>