一、前言对于箱体零件的加工,国内一般采用两种方法。成批生产采用专用机床和镗模加工;小批及单件试制则采用座标镗床加工。专机和镗模的生产率较高,但是没有柔性,不能适应品种的变换;而采用座标镗床加工,虽然柔性很大,但生产率却很低,无法适应批量生产。数控机床的诞生解决了这一矛盾,因为它既有较高的生产率又有柔性。目前国 First, the foreword For the processing of box parts, the domestic general use of two methods. Mass production using special machine tools and boring mold processing; small batch and one-piece trial production using coordinate boring machine processing. Special machine and boring mold high productivity, but not flexible, can not adapt to the variety of transformation; and use boring jig machining, although a lot of flexibility, but the productivity is very low, can not adapt to mass production. The birth of CNC machine tools solved this conflict because of its high productivity and flexibility. The current country