根据轴平衡块钻两孔的工艺要求(见图1),原加2时,在立式钻床上利用钻模板,分别对两孔φ12.5钻削。其缺点是:加工质量不易保证,操作不方便,劳动强度大,而且生产率低。为克服以上缺点,笔者与郑州二柴厂结合,自行设计,自行制造了曲轴平衡块自动钻孔机床。通过该机床数年使用,具有性能良好,加工质量高,操作方使,生产率高等优点。 According to the shaft balancing block drilling two holes process requirements (see Figure 1), the original plus 2:00 on the vertical drilling machine using the template, respectively, two holes φ12.5 drilling. The disadvantage is: processing quality is not easy to guarantee, inconvenient to operate, labor-intensive, and low productivity. In order to overcome the above shortcomings, the author combined with Zhengzhou No.2 Diesel Engine Co., Ltd., designed and made a self-drilling crankshaft balancer automatic drilling machine. Through the use of the machine a few years, with good performance, high quality processing, the operator side, high productivity and so on.