在设计样板车刀时,最重要的一个手续,就是计算样板刀之刀口尺寸。以往我们计算此种尺寸时,是用三角的公式,正弦定律,又分了二个手续,才求出来的。这样非但公式繁复,而且要找到它们的关系,也很难,一不小心,就会将尺寸计算错误;因此严重的影响了成品的尺寸,而成为大批的废品。这里介绍一种很简单而且易懂的计算方法,能够顺利的计算出所欲求的尺寸数值来: 由[图二],首先我们由样板车刀本身及工件材料来决定它的倾角γ,然后再决定隙角α,及β=90°-(γ+α);然后我们选择一个d_0。d_0是一种基圆的意义,往往由工作物的最小直径来担当。必要 When designing the model lathe, the most important procedure is to calculate the blade size of the model knife. In the past we calculated the size, is the formula of the triangle, the law of the sine, divided into two procedures, only to find out. In this case, not only is the formula complicated, but it is also very difficult to find out the relationship between them. If it is not meticulously calculated, the dimensions will be incorrectly calculated. As a result, the size of the finished product will be seriously affected, resulting in a large amount of waste products. Here is a very simple and easy to understand calculation method, which can calculate the desired size value smoothly. From [Figure 2], we first determine the inclination γ of the model turning tool and the workpiece material, and then decide Gap angle α, and β = 90 ° - (γ + α); Then we choose a d_0. d_0 is the meaning of a base circle, often the smallest diameter of the work to play. necessary