机床是发展机器制造业以至整个工业必不可少的复杂生产工具，既是生产力要素，又是重要商品。而NC机床是机电一体化现代机床，对复杂件、难削件的加工起到攻坚作用，又特别适合于中小批多品种柔性生产。在大量大批生产自动化实现之后，必须要努力发展中小批多品种柔性生产自动 Machine tools are indispensable and complicated tools for the development of the machinery industry and the whole industry. They are both productive forces and important commodities. The NC machine is a mechatronic modern machine tool, complex parts, difficult to play pieces of processing play a crucial role, but also particularly suitable for small and medium-sized batch of flexible production. After a large number of large-scale production automation, we must strive to develop small and medium-sized batch of flexible production automation