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我校实习厂多年为矿山生产牙轮钻头。每只钻头有三个牙轮(如图1),每个牙轮的锥体上要镶嵌硬质合金柱齿,每圈齿数不等。我厂生产的牙轮的齿数和大小如表。由于在圆锥体上钻孔,质量难以保证,我们设计了专用钻孔装置,把Z512型普通钻床改造成专用钻孔机,形成了牙轮齿孔钻孔流水线。多年实践证明,这是一种加工牙轮齿孔的比较理想的设备。
Our internship plant for many years for the production of roller cone drill bit. Each bit has three cone (Figure 1), each conical cone to be set with carbide teeth, ranging from the number of teeth per ring. The number of teeth and the size of the cone produced by our factory are shown in the table. Due to the drilling on the cone, the quality is difficult to guarantee. We designed a special drilling device to transform the Z512 ordinary drilling machine into a special drilling machine to form a tooth perforation drilling line. Years of practice has proved that this is an ideal tool for processing tooth perforation.