我所在设计加工某自动线上微电机壳体时,碰到了一组孔中心距为6.8~(±0.05)毫米、孔径为φ1.1~(+0.06)毫米的盲孔,孔深5毫米,工件材料为硬铝。为了减少工位,提高加工效率,必须一次钻出这一组孔。据有关资料报导:多轴同时钻孔的孔距一般不小于16毫米,如果小于16毫米,则轴承和弹簧夹头的问题无法解决。我们 When designing and processing an automatic on-line micromotor housing, I encountered a group of blind holes with a hole center distance of 6.8 ~ (± 0.05) mm and a hole diameter of φ1.1 ~ (+0.06) mm with a hole depth of 5 mm. The workpiece material is duralumin. In order to reduce the station and improve the processing efficiency, this group of holes must be drilled once. According to the data reported: multi-axis drilling at the same time the hole is generally not less than 16 mm, if less than 16 mm, the bearing and collet can not solve the problem. we