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在加工如图1所示的铝合金零件的通孔时,由于设备条件限制,要达到图纸要求的尺寸精度和光洁度遇到了困难。在同志们的共同研究下,我们利用普通车床和专用镗刀,解决了这个难题。一、加工方法用车床三爪夹盘夹住毛坯的中部,用接长了的φ21.8钻头预钻孔。然后用活顶尖顶住孔的一端,光外圆,再以外圆定位,利用如图2的装置粗
When processing through-holes in aluminum alloy parts as shown in FIG. 1, difficulties in achieving dimensional accuracy and smoothness of the drawing due to equipment limitations were encountered. Under the joint research of the comrades, we solved this problem by using ordinary lathes and special boring tools. First, the processing method Three-jaw chuck with a lathe clamp the middle of the blank, with a long hole φ21.8 pre-drilling. Then live with the top of the hole to withstand the end of the hole, the light of the outer circle, and then the positioning of the outer circle, the use of crude equipment as shown in Figure 2