工件以“一面两孔”定位时的定位误差及其微机处理

The Positional Error of Workpieces Positioned by“One Face and Two Holes”Method and its Microcomputer Processing

本文较深入全面地对“一面两孔”定位误差进行分析计算,列出了不同方向,不同位置的加工尺寸在不同偏转角情况下的定位误差计算公式。并介绍了微机处理的软件及计算实例。该软件可在 IBM PC/XT 微机上运行,采用中、英文 BASIC 语言,通过人机对话形式,可快速计算出各种类型加工尺寸的定位误差。具有实用价值。

This article analyses the positional error of workpieces positioned by‘ one face and two holes’method and puts forward the formulae for calculating the positional error of finish sizes in different direction,at different places and with different deflections.Also introduced in the article is the software for the cal culation,illustrated by some examples,It can also be run on microcomputer IBM-PC/XT by the language of English-Chinese BASIC.It can give a quick calculation of the error of different finish sizes by dialogue between personand the machine and thus of practical value.