通常加工机床床头箱上的孔系时,在组合镗床上只完成孔的加工。而对于与孔中心有较高垂直度要求的轴孔内端面(如图 1A面)以及内沟槽B等需要径向切进的平面,只能将箱体放在万能卧式镗床上再次定位加工。这样既不容易达到工艺要求,也增加了工时。近年来我厂先后在两台自制的工作台 When machining the hole series on the machine headstock, only the holes are machined on the combination boring machine. For the center hole with a higher vertical hole requirements of the axial bore end face (Figure 1A) and the inner groove B and other radial cutting into the plane, the cabinet can only be placed on the universal horizontal boring machine re-positioning Processing. This is not easy to meet the process requirements, but also increase the working hours. In recent years, our factory has two self-made workbench