典型航空结构件数控加工夹具设计及仿真研究
文华,王玲*,赵宇晨,朱冬,殷国富
(四川大学 制造科学与工程学院,四川 成都 610065)
摘要:针对航空结构件中大型长桁零件薄壁部分易变形难加工的特点,对其进行了数控加工工艺规程的制定以及工装夹具系统的设计。为了提升长桁零件的动态性能,利用有限元分析软件对长桁零件进行了模态分析和谐响应分析,获取其固有频率、发生共振的频率以及共振的幅值,并预测零件的变形情况。研究结果表明:长桁零件的加工方案存在改进的空间,可根据相关分析结果优化其铣削参数,改进加工方案,进一步提升长桁零件表面的加工质量。
关键词:变形;加工工艺;夹具系统;铣削参数
中图分类号:TP391.9 文献标志码:A doi:10.3969/j.issn.1006-0316.2018.06.007
文章编号:1006-0316 (2018) 06-0043-04
Design and Simulation of NC Machining Fixture for Typical Aviation Structural Parts
WEN Hua,WANG Ling,ZHAO Yuchen,ZHU Dong,YIN Guofu
( School of Manufacturing Science & Engineering, Sichuan University, Chengdu 610065, China )
Abstract:The thin-walled parts of large long truss of the typical aviation structural parts are easy to deform and difficult to process. The process specification is developed for NC machining and design of the jig and fixture system. The paper analyzes the long truss modal and harmonic response with finite element analysis software in order to enhance the dynamic performance of truss parts. Natural frequency, resonance frequency and resonance amplitude is obtained and prediction of the parts deformation is achieved. The research results show that the machining scheme of the long truss parts can be improved, the milling parameters could be optimized according to the relevant analysis results, and the modified processing scheme can further improve the machining quality of the long truss parts.
Key words:deformation;machining process;fixture system;milling parameters
———————————————
收稿日期:2017-10-10
基金项目:智能制造综合标准化与新模式应用项目和四川省科技计划项目(2015GZ0008)
作者简介:文华(1992-),男,四川宜宾人,硕士研究生,主要研究方向为产品数字化设计与制造。*通讯作者:王玲(1971-),女,四川成都人,博士,副教授,主要研究方向产品数字化设计与制造;殷国富(1956-),男,四川西充人,教授,博士生导师,主要研究方向为产品数字化设计与制造。
 

 

设为首页  |  加入收藏    |   免责条款
《机械》杂志版权所有     Copyright©2008-2012 Jixiezazhi.com All Rights Reserved 

  电话:028-85925070    传真:028-85925073    E-mail:jixie@vip.163.com

地址:四川省成都锦江工业开发区墨香路48号   邮编:610063

Powered by PageAdmin CMS