我厂设计制造了一台汽车转向横拉杆接头开口销孔组合钻床(图1)。原来在2A125立式钻床上加工四个开口销孔时,利用回转夹具一个孔一个孔地钻,劳动强度大,生产效率低。为了提高生产率,改善劳动条件,我厂广大工人、技术人员和革命干部,遵照伟大领袖 I plant design and manufacture of a car turning rod joint opening pin hole combination drill (Figure 1). The original 2A125 vertical drilling machine to process four open pin hole, the use of a rotating hole clamp a hole to drill, labor-intensive, low productivity. In order to improve productivity and improve working conditions, our factory workers, technicians and revolutionary cadres, in accordance with the great leader