在多轴孔加工领域里常常出现一些加工问题,即使采用目前高度发展的多轴钻床仍然解决得很不经济。例如:有些工件一面或多面有大量的孔,常常需要进行顺序加工,即:扩孔、锪平面、倒角、铰孔、攻丝等等;另一方面,这些孔的加工只能在一次装卡中进行。 用多台机床或频繁地更换工艺装备及中间贮存的方式,会使加工费用大大增高。另一方面对于有些工件,由于其加工情况只能一次装卡,需要增加校准面之类的东西,从便达到所要求的位置精度或者在顺序加工时使钻孔——攻丝精确重合。其次,就是备件的制造问题,特别是在汽车工业中。在这方面和大量的其他工件一样,在许多情况下,涉及零件系列的问题。用通常的方法进行加工成本太高。如果在上述加工领域里采用现在市场上现成的自动换 Some machining problems often occur in the field of multi-hole machining, which is still uneconomical even with the currently highly developed multi-spindle drilling machines. For example, some workpieces have a large number of holes on one or more surfaces and often require sequential machining, ie reaming, flattening, chamfering, reaming, tapping, etc. On the other hand, the machining of these holes can only be performed in one loading Card. With multiple machine tools or frequent replacement of process equipment and intermediate storage methods, processing costs will be greatly increased. On the other hand, for some workpieces, which can only be loaded at a time due to their machining conditions, it is necessary to add something such as a calibration surface to achieve the required position accuracy, or to exactly match the drilling-tapping sequence during machining. Second, there is the issue of manufacturing spare parts, especially in the automotive industry. In this respect, like many other workpieces, there are many cases involving the series of parts. The cost of processing in the usual way is too high. If in the above-mentioned areas of processing used in the market now available automatic exchange