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在机械制造中用圆锥体(孔)作为配合表面,具有配合紧密、定位准确、装拆方便等优点,实际应用很多。圆锥体的几何参数,习惯上要经繁复的数学运算求得,现推荐一种斜角计算尺和一种斜角计算图表,在锥度计算、螺纹计算、多边形及圆周等分弦长计算、各种面积计算上都能简捷、方便地运用。省去了数学运算和查三角函数表的麻烦,并且具有实用所需的精确度。其计算步骤如下。圆锥体的各部分名称和计算公式如图1、表1所示,其中D——圆锥体的大端直径(mm);d——圆锥体的小端直径(mm);L——圆锥体的锥形部分长度(mm);α——圆锥体的斜
In machinery manufacturing with cone (hole) as the mating surface, with a close, accurate positioning, easy assembly and disassembly, the practical application of many. Geometric parameters of the cone, used to go through complex mathematical calculations, now recommend a diagonal ruler and a bevel calculation chart, in the taper calculation, thread calculation, polygon and circle equal chord length calculation, each Area calculation can be simple, easy to use. Eliminate the math and trigonometric functions table trouble, and with the required accuracy. The calculation steps are as follows. The name and formula of each part of the cone are shown in Figure 1 and Table 1, where D is the diameter of the large end of the cone (mm), d is the diameter of the small end of the cone (mm), L is the diameter of the cone The length of the tapered portion (mm); α - cone oblique