一、引 言 数控技术于七十年代得到了蓬勃的发展,由于计算机技术、集成电路技术的发展,又为数控技术的发展开辟了广阔的前途,特别是微型机技术引入数控领域以后,使数控技术又发生了一次质的飞跃,从而使得一些复杂空间型面零件的加工成为可能。 廉价的微型机,具有完善的可编程功 I. Introduction CNC technology in the seventies has been thriving development, due to the development of computer technology, integrated circuit technology, but also for the development of numerical control technology has opened up a broad prospect, especially the introduction of micro-computer technology into the field of numerical control, CNC technology Another qualitative leap took place, making the machining of some complex space profile parts possible. Cheap micro-computer, with a perfect programmable work