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近几年来对建立组合机床和用这种机床组成的机床自动线问题予以极大的注意。在大量和大批生产中,采用组合机床代替万能机床,劳动生产率提高7～9倍(在一年内回收机床费用的条件下)。这种高指标是因为在组合机床上允许大量集中工序和机床价格较低,由于它是用通用化部件和零件所组成,这些通用部件占组合机床部件和零件总数的70～80%。组合机床最适宜使用于这样的工艺过程,就是加工时,被加工零件固定不动,而进给运动由刀具实现。在钻孔、扩孔、铰孔、粗镗和精镗、车端面、车各种轴颈外圆和倒角、成形镗削以及在各种铣削工序情况下广泛采用组合机床。苏联各工厂内有几千台这种机床在使用着,目前它的需要量大为增加。
In recent years, great attention has been paid to the establishment of a combined machine tool and the problem of the automatic machine line composed of such a machine tool. In mass and mass production, the combination of machine tools instead of universal machine tools, labor productivity increased by 7 to 9 times (in a year to recover the cost of machine tools). This high markup is due to the large number of machining operations and machine tools that are costly on the combined machine because it is made up of common parts and components that make up 70-80% of the total number of machine tool components and parts. The most suitable combination of machine tools used in such a process, that is, processing, the workpiece is fixed, while the feed movement by the tool. In drilling, reaming, reaming, rough boring and fine boring, car face, a variety of journal cylindrical and chamfering, forming boring and a variety of milling processes in a wide range of combination of machine tools. Thousands of such machines are being used in the factories in the Soviet Union and their requirements have soared.