本文提出一种进行机械加工工艺尺寸计算的计算机程序,它是根据图论查找尺寸链的原理,准确地查明全部工艺尺寸链,同时判明各工艺组成环的性质,然后运用通常的尺寸链计算公式,进行全部工序的工艺尺寸(包括毛坏尺寸)的计算和余量校核。本程序用 BASIC 语言编写,适用于 APPLE-Ⅱ微型计算机。程序简单明了,计算迅速、准确,占用内存少,节省机时。 This paper presents a computer program for machining process size calculation, which is based on the theory of graph theory to find the size of the chain, accurately identify all the size of the process chain, while the process of identifying the nature of the composition of the ring, and then use the usual size chain calculation Formula, the process of the entire process size (including gross damage size) calculations and margin checks. This program is written in BASIC language, suitable for APPLE-Ⅱ microcomputer. The procedure is simple and clear, the calculation is rapid, accurate, occupy less memory, save machine time.