飞机结构铆接装配中机械加工零件的公差确定  

Determination of Tolerance For Machined Parts in Riveted Assembly of Aircraft Structures

作　　者：李科 县喜龙 LI Ke;XIAN Xilong(China Aerospace Aircraft Industry Co.,Ltd. Gansu Tianshui,741025,China)

机构地区：[1]中航天水飞机工业有限责任公司,甘肃天水741025

出　　处：《数码设计》2018年第3期71-72,共2页Peak Data Science

摘　　要：随着飞机外形要求与机械加工技术的提升,许多机加零件代替了钣金零件,常用的公差标准难以满足飞机的装配要求,需要对其公差再次分配。本文分析了某一横梁在U型框中装配的间隙和阶差,总结造成超差的主要原因,对机加零件的公差进行再分配,满足了装配要求并提高了飞机装配效率。With the appearance of aircraft requirements and the improvement of machining technology,some sheet metal parts have been replaced by machine parts.The standard of tolerance is difficult to meet the requirements of aircraft assembly,and the tolerances need to be redistributed again.This paper analyzes a beam in U type box assembly gap and order difference,summarize main causes of excess error and allocated the machine parts tolerance once more,to meet the requirements of assembly and improve the efficiency of aircraft assembly.

关 键 词：飞机装配 机械加工 公差 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]