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我厂过去对螺旋叶的下料没有一个很好的计算方法,都是试开几次才能得出结果,既不很准确,又浪费工料。现在有了一个简便的方法。它的计算方法如下: 我们首先要知道螺旋叶的条件(如图1):螺旋叶的外径D;螺旋叶的内径d;螺旋叶的螺距P。螺旋叶展开后的下料图形是一个缺圆形(如图2)。展开后外圆半径是R_1;展开后内
In the past, the factory did not have a good calculation method for the cutting of the spiral leaves. It was tried several times to get the result, which was neither accurate nor wasted material. Now there is a simple way. It is calculated as follows: We first need to know the conditions of the helical leaf (Figure 1): the outer diameter of the helical leaf D; the inner diameter of the helical leaf d; the pitch P of the helical leaf. Spiral leaf unrolled blanking graphics is a lack of round (Figure 2). After unfolding the outer radius is R_1;