我厂加工一批铜管矫直机的轧辊,其曲面为单叶旋转双曲面。我厂原工艺按卡板车削,劳动强度高,生产率低,质量差,并要求操作工人有较高的技术水平。现改进用单叶旋转双曲面形成的原理来车削。实践证明效果较好,现介绍如下。一、基本原理图1所示单叶旋转双曲面的方程式为: (x~2+y~2)/a~2-z~2/b~2=1 (1)式中:a为实半轴;b为虚半轴。以y=a的平面截曲面得截痕为一对相交于点o_(?)(o,a,o)的直线AB及CD。同理,以y=-a的平面截曲面得截痕为一对相交于点o_(?)~＇(o,-a,o)的直线EF及GH。直线方程式为: I plant a number of brass tube straightening machine roll, the surface of the single-leaf rotating hyperboloid. I plant the original process by card board turning, high labor intensity, low productivity, poor quality, and require workers to operate a higher technical level. Now improve the use of single-leaf rotating hyperboloid formation principle to turning. Practice has proved that the effect is better, are presented below. First, the basic principle Figure 1 shows the single-leaf hyperboloid equation is: (x ~ 2 + y ~ 2) / a ~ 2-z ~ 2 / b ~ 2 = 1 (1) Where: Axis; b is an imaginary half-axis. The cut line with a plane cut surface of y = a is a pair of straight lines AB and CD that intersect at point o_ (?) (O, a, o). In the same way, the intercept of a plane cut surface with y = -a is a pair of straight lines EF and GH intersecting at points o_ (?) ~ ’(O, -a, o). The linear equation is: