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在工模具的设计与制造过程中,我们经常会遇到各种空间角度的换算问题。尽管有些可用立体图法或投影法进行计算,但是应用球面三角法却更加准确、方便。现结合两个实际例子,谈谈此方法的具体应用。一、我厂在加工V形导轨时,原先采用铇后手工刮研的工艺,其生产效率低,工人劳动强度大。为此,我们改革了旧工艺,采用一次精铇挤光的办法,获得了满意的效果。精铇挤光刀的形状如图1。该铇刀具有15°负前角,V形加工后的角度要求是90°±1′。铇刀刃磨工艺是:先刃磨E面,然
In the mold design and manufacturing process, we often encounter a variety of spatial angle conversion problem. Although some can be calculated by using the stereogram or projection method, the spherical trigonometry is more accurate and convenient. Now combined with two practical examples, talk about the specific application of this method. First, when processing the V-shaped guideway in our factory, we used the craft of manual scraping and grinding at the beginning and the production efficiency is low and the labor intensity of the workers is big. To this end, we have reformed the old craftsmanship and obtained a satisfactory result by using a delicate blend of light and light. Fine 铇 squeeze knife shape shown in Figure 1. The trowel has a 15 ° negative rake angle and the V-shaped angle requirement of 90 ° ± 1 ’.铇 knife grinding process is: first sharpening E surface, however