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在上一讲中,我们讨论了一个工序中工艺尺寸的计算方法。生产实际中,工艺尺寸计算的问题常常涉及到几个工序甚至整个机械加工工艺过程。这时就要根据工艺过程分析各个工艺尺寸形成的顺序,建立相应的尺寸链,再进行计算。在这一讲里,我们举两个例子说明这种情况下工艺尺寸的计算方法。例五图5-1(a)所示的阶梯轴,属于大批生产。毛
In the previous lecture, we discussed the calculation of process dimensions in a process. Production practice, the process of calculating the size of the problem often involves several processes or even the entire machining process. At this time we must analyze the process of forming the size of each process order, the establishment of the corresponding size chain, and then calculated. In this talk, we give two examples to illustrate how the process size is calculated in this case. Example 5 Figure 5-1 (a) shows the ladder shaft, belonging to the mass production. hair