所有的装配情况可以简化为四种可能情况的一种,每种情况均有其自己的计算装配公差或装配间隙的公式。前两篇文章讨论了两种情况,即配合零件是用螺栓或类似零件装配的,而螺栓与任一装配零件并不做成一体。在第一种情况下,附加的设计要求是,互相装配的零件的两个侧边彼此应准确地对齐。在第二种情况下,侧边的位置允许在任一给定的公差内变 All assembly can be simplified to one of four possible situations, each with its own formula for calculating assembly tolerances or assembly clearances. The first two articles discuss two situations where the mating parts are assembled with bolts or the like and the bolts are not integral with any of the fitting parts. In the first case, an additional design requirement is that the two sides of the mutually assembled parts should be exactly aligned with each other. In the second case, the position of the side allows to change within any given tolerance