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测量锥孔直径,使用普通的游标卡尺、千分尺、深度尺等测量工具,既麻烦又不能获得精确值。这里提出如图所示那样一种简易测量工具。该测量工具用一只百分表来测量角度在126°以下的锥孔直径。实际上,锥孔的角度几乎都在126°以下,因此,该工具对任何锥孔都可以使用。测头的尖端角度为26°34′。这一角度是根据尺寸B 为尺寸A 的两倍而确定的。即读取的锥孔直径只要将A 值变为4倍的值就行了。使用本测量工具时,百分表装在立柱的接头上,把测头固定在被测表面上,此时百分表
Measuring taper hole diameter, the use of ordinary vernier caliper, micrometer, depth ruler and other measuring tools, both cumbersome and can not get the exact value. Here is a simple measurement tool as shown here. The measuring tool uses a dial indicator to measure the taper hole diameter below 126 °. In fact, the taper hole angle is almost 126 ° below, so the tool can be used for any tapered bore. The tip angle of the probe is 26 ° 34 ’. This angle is based on the size B is twice the size A determined. That is to say, the diameter of the taper to be read is only required to change the A value to 4 times the value. When using this measuring tool, the dial indicator is installed on the post of the column and the probe is fixed on the surface under test. At this moment, the dial indicator