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十几年来,我们经常加工钻机易损件空心轴。在长期实践中,经过反复摸索改进,吸收了各方面有用的经验,革新了一套行之有效的工艺装备,夺得了优质高产。空心轴的结构如图1。毛胚为无缝钢管(外φ68×内φ38～42)。过去加工采用车削的方法,孔深刀杆长,切削时产生颤动,不能开快车、吃大刀、大走刀,每班才加工一根,最多也只能加工三四根。我们针对刀杆颤动是影响效率提高这一主要矛盾。综合研究了铣工的刀具,镗工的装夹工装,深孔钻的导向结构和钻探钻具的冷却水供应等各方面
For more than ten years, we often process hollow shafts of wearing parts of drilling rigs. In the long-term practice, after repeated exploration and improvement, it has absorbed all kinds of useful experiences, innovated a set of effective technological equipment and won the high quality and high yield. Hollow shaft structure shown in Figure 1. Blank embryo is seamless steel pipe (outside φ68 × φ38 ~ 42). In the past, the turning method was adopted in the past. The length of the cutter was deep and the cutter vibrated during cutting. The cutter could not drive fast, eat knives, and walk through the knives. Only one or so each class could be processed. We focus on the sharpening rod is the main contradiction of efficiency. Comprehensive study of the milling cutter, boring tooling fixture, deep hole drilling guide structure and the drilling rig cooling water supply and so on