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在切削加工中,只要有可能,我们就尽量采用多刀切削法。这种方法所以能够得到普遍推广;主要原因是:它除了能够保证工件质量外,而且能大大地提高劳动生产率。这里我们介绍一下活塞底面的多刀加工。因为活塞在动力机械中用得很多,所以有一定的普遍意义。根据我们了解,一般工厂中是用以下的方法来加工活塞的:1)把毛坯(铝合金铸件)的头部夹在车床的三爪卡盘上,加工端面及内孔;2)将工件调头,以内孔定位装在专用夹具上,加工顶面;3)用顶针顶住,加工外圆锥度及环槽;
In the cutting process, whenever possible, we try to use multi-cutting method. This method can be widely promoted; The main reason is: In addition to its quality assurance of the workpiece, but also can greatly improve labor productivity. Here we introduce the multi-knife processing of the bottom surface of the piston. Because the piston in the power machinery used a lot, so there is a certain universal significance. According to our understanding, in the general factory, the piston is processed by the following methods: 1) The head of the blank (aluminum alloy casting) is sandwiched on the three-jaw chuck of the lathe and the end face and the inner hole are machined; 2) , With the hole positioning installed in a dedicated fixture, the top surface processing; 3) with the thimble withstand, machining and taper outer ring groove;