由于机械制造业的发展,机器的精密度的要求日益提高,特别是高速运转和高负荷的机床,精密度的要求更高。如果零件的几何形状不精确,就会破坏整个机器和机床的精度。在苏联,己经对零件几何形状的精度,也就是对零件的整形公差作了许多规定。这里就先来谈一谈关于整形公差的一些基本知识。 Due to the development of machinery manufacturing industry, the precision of the machine is increasingly demanding, especially in high-speed operation and high-load machine tools, precision requirements are higher. If the part geometry is imprecise, the accuracy of the entire machine and machine can be compromised. In the Soviet Union, the accuracy of the geometry of a part, that is, the shaping tolerance of the part, has been set. Here to talk about some of the basic knowledge of plastic tolerances.