近年来,机械产品的品种规格日益增多,产品更新的周期日益缩短,大批大量生产比例下降,中、小批生产比例提高。对此,成组技术就成为提高生产效率、降低加工成本,最大限度地简化生产技术准备工作的主要途径之一。 In recent years, more and more varieties of mechanical products, product updates cycle is shortened, a large number of mass production decreased, the proportion of small and medium batch production increased. In this regard, group technology has become one of the main ways to improve production efficiency, reduce processing costs and minimize production technology preparation.