Pitch diameter measuring of thread ring gauge and uncertainty evaluation;
螺纹环规的中径测量及其不确定度评定
By combining the traditional three ball measuring principle for thread with image measuring technology, a kind of 3-D automatic measuring system based on CCD image for pitch diameter parameters of taper thread is developed, and errors of the image-based three ball method are analyzed.
将传统的螺纹三针测量原理与图像测量技术相结合,设计开发了一种基于CCD图像的锥螺纹中径参数三维自动测量系统,并对图像三针测量法进行了误差分析。
The proposal of measuring pitch diameter of external thread gauge with coordinate accords with the definition of pitch diameter of thread in GB/T14791 93 The semi angle error of the thread profile and pitch error will not affect the measuring of pitch diameter The measuring result of pitch diameter shows satisfactory comparison with the value of three needle measuremen
文章提出的“坐标法”测量螺纹量规中径的方法 ,符合 GB/T1 4791 - 93螺纹中径的定义 ,不存在原理误差。
This article introduces using comparative measuring method with Double Flank Gear Rolling Tester to measure the 1/2 M value,and then calculates d2 mid-diameter,without any special measuring tools and instrument.
本文介绍在没有专用量具、量仪的条件下,在双面啮合综合检查仪上用比较测量法,测出三槽丝锥的1/2M值,然后计算出中径d2的方法。
This paper present that errors in flank angle can actually influence the virtual pitch diameter of the thread, then influences the thread coupling interchangeability.
介绍了与普通螺纹有关的基本术语 ,针对螺纹牙型半角误差常被作为衡量螺纹牙型角度误差对其互换性的影响参数的实际状况 ,提出牙侧角误差(非牙型半角误差 )才是真正影响螺纹的作用中径从而影响螺纹结合互换性的参数 ,并从理论上进行了分析与推
This paper deals with the interchangeability of sawtooth thread used in unidirectional heavy load and the exact fit which apply the fit specific property by means of virtual pitch diameter.
采用作用中径来分析锯齿形螺纹的配合特性。
By the use of the displacing enveloping drawing method, a set of exact formulae for calculating the virtual pitch diameter is deduced and verified by measured data.
本文考虑了非对称三角形螺纹的螺距偏差和牙侧角偏差的各种组合对作用中径的共同影响,运用了包容图位移法,分析和推导出非对称螺纹作用中径的精确计算公式。
Assessing methods for uncertainty in measurement of cone-shaped thread base level pitch diameter are researched and analyzed,on the basis of which the source,the measurement method and the computing formula of uncertainty in measurement of base level pitch diameter are particularly dissertated.
分析了圆锥外螺纹基面中径的测量不确定度的各种评定方法,在此基础上论述了基面中径测量不确定度的来源、测量方法及计算公式,最后通过实验数据,对基面中径的测量不确定度的评定方法进行了实例分析。
A simple qualification criterion of regular pitch diameter;
一种普通螺纹中径合格性的简单判定方法
This paper describes the priciple and method of measuring the pitch diameter of a large diameter sawtooth thread with a single ball,and introduces in detail the measuring device to realize the method.
本文论述了用单球法测量大直径锯齿形螺纹中径的原理与方法,具体介绍了为实现这种方法而设计的检测装置。
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