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立式车床刀架一般只能旋转40～45°,个别只能旋转30°。当零件圆锥角大于刀架旋转极限角度的一倍对,加工就有困难。本刊1962年2月号宋振林同志介绍了解决这个问题的方法。笔者现提出补充意见,在零件圆锥角不太大时可以适用,而计算比较简便。如图1所示,一般立式车床水平丝杠(图中的2,传动拖板用)的螺距t_(拖板)与刀架5的轴向进给丝杠螺距t_(刀深)是相同的,即:t_(拖板)=t_(刀架)。
Vertical lathe turret usually only rotate 40 ~ 45 °, individual can only rotate 30 °. When the part cone angle greater than the rotation angle of the turret double, the processing difficulties. Journal of February 1962 Comrade Song Zhenlin introduced a solution to this problem. I now make additional comments, the cone angle is not too large parts can be applied, and the calculation is relatively simple. As shown in FIG. 1, the pitch t_ (carriage) of the horizontal screw of the vertical lathe (in the figure 2, the drive carriage) is the same as the axial feed screw pitch t_ (knife depth) of the carriage 5 , That is: t_ (carriage) = t_ (turret).