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本文介绍一个自制测量工具,用来测量小角度小尺寸量规。测量工具用渗碳材料制作(如图所示),两大工作平面研磨平行,平行度不大于0.001mm,内外靠面90°直角控制在±10″以内,并与侧挡板1靠面垂直。测量步骤:先在平台上用正弦规测量量规2角度,合格后再装到测量工具上测量小头端面交点尺寸。选择合适的三针或是标准心轴3放在量规角度面上并与小头端面靠面相切,在平台上用千分比较仪和量块4比较测量,读得偏差Δ,再加上量块实际尺寸,得到卡量值M,即可用下式求出小头端面实际尺寸X。
This article describes a self-made measurement tool used to measure small-angle small-angle gauge. The measuring tools are made of carburized material (as shown in the figure). The two working planes are ground in parallel and the parallelism is not more than 0.001mm. The inner and outer backrests are controlled within ± 10 "at a right angle of 90 ° and are perpendicular to the side bezel 1 Measurement steps: First, use the sine gauge to measure the angle of the gauge 2 on the platform, and then put it on the measuring tool to measure the intersection point size of the end face of the measuring head after passing.Select the appropriate three-pin or standard mandrel 3 on the gauge angle surface and with Small head face tangent on the platform with a comparative comparator and the amount of measuring 4 comparative measurement, read the deviation Δ, plus the actual size of the block, get the amount of card M, you can use the following formula to find the small head face Actual size X.