宇航计测技术
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陈正1;王玉萍1
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作者简介:
CHEN Zheng1;WANG Yu-ping1
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摘要: 在万工显上,采用影像法测量圆锥形外螺纹的诸参数(例如:牙距、牙形半角等)时,中央显微镜的立柱要倾斜一个角度。与测量普通的圆柱形外螺纹不同的是,该角度是一个平均值,称为平均螺旋升角。给出了平均螺旋升角的三种计算公式及其推导过程。
关键词: 锥螺纹, 螺旋升角, 计算方法, 平均值
Abstract: In the universal tool microscope, there would be tilted at an angle for the column of the central microscope by using image method to measuring the parameters (for example: pitch, half of thread angle etc.) of conical outer thread. And the difference from measuring the common cylindrical outer thread is that the angle called the mean spiral angle is a mean value. The three kinds of calculation formulas with their derivation processes for the mean helix angle are introduced.
Key words: Taper thread, Spiral angle, Calculation method, Mean value
陈正;王玉萍. 锥形螺纹平均螺旋升角的计算[J]. 宇航计测技术, doi: 10.12060/j.issn.1000-7202.2013.02.07.
CHEN Zheng;WANG Yu-ping. The Calculation of Mean Spiral Angle with Conical-shaped Thread[J]. JOURNAL OF ASTRONAUTIC METROLOGY AND MEASUREMENT, doi: 10.12060/j.issn.1000-7202.2013.02.07.
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http://www.yhjcjs.com.cn/CN/Y2013/V33/I2/34