自从贯彻《表面形状和位公差》国家标准后,体会到以前有的图纸在形位公差(以前叫形位偏差)应用方面,术语、定义及在图纸上的标注方面很不统一,公差值不确切,测量方法不合理等。在贯彻形位公差国家标准时应予以更正,并做到慎重、合理。我厂是生产冲击类风动工具的工厂。冲击类风动手工具如风镐、风铲、顶把、捣固机等,这些产品不仅内部结构要求配合件运动 Since the implementation of the “surface shape and bit tolerance” national standards, I realized that some drawings in the form of tolerance (formerly known as position deviation) applications, terminology, definitions and labeling on the drawing is very uniform, the tolerance value Imprecise, measurement methods are not reasonable. In carrying out the national standard of shape and position tolerance should be corrected, and be cautious and reasonable. Our factory is the production of impact-type pneumatic tools factory. Impact type pneumatic hand tools such as picks, wind shovels, top handle, tamping machine, these products not only internal structure requirements with pieces of exercise