可调节气囊提高航空薄壁件加工精度的研究

doi:10.12068/j.issn.1005-3026.2017.03.018

东北大学学报:自然科学版 ›› 2017, Vol. 38 ›› Issue (3): 390-394.DOI: 10.12068/j.issn.1005-3026.2017.03.018

可调节气囊提高航空薄壁件加工精度的研究

林文强¹，焦明裕¹，赵西松²，喻先勇¹

(1. 东北大学机械工程与自动化学院，辽宁沈阳110819； 2. 沈阳黎明航空发动机(集团)有限责任公司，辽宁沈阳110043)

收稿日期:2015-10-10 修回日期:2015-10-10 出版日期:2017-03-15 发布日期:2017-03-24
通讯作者: 林文强
作者简介:林文强 (1961-)，男，浙江温岭人，东北大学副教授.
基金资助:
辽宁重大装备制造协同创新中心资助项目.

Study on Improving the Machining Accuracy of Aviatic Thin-Walled Parts with the Adjustable Airbag

LIN Wen-qiang¹， JIAO Ming-yu¹， ZHAO Xi-song²， YU Xian-yong¹

1. School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China; 2. AVIC Shenyang Liming Aero-Engine Group Co.， Ltd.， Shenyang 110043， China.

Received:2015-10-10 Revised:2015-10-10 Online:2017-03-15 Published:2017-03-24
Contact: LIN Wen-qiang
About author:-
Supported by:
-

摘要/Abstract

摘要： 以前机匣为典型零件，提出了提高航空薄壁件加工精度的可调节压力气囊支撑系统.系统采用正交分析法，对薄壁件进行切削有限元仿真，分析比较了薄壁件在不同工装参数下的切削变形，并研究切削点变形随工装参数的变化趋势.由此对薄壁件工装进行优化，优化后因工装参数引起的误差可减小60%以上，直接对航空薄壁件加工提出指导性意见.在优化的工装基础上，提出了使用可调节压力气囊作为支撑，根据切削点的变形情况使用不同压力的气囊，装夹变形可在优化后基础上再次减小40%以上，从而减小让刀变形、控制薄壁件的加工精度.

关键词: 航空薄壁零件, 正交分析, 有限元仿真, 工装优化, 压力气囊

Abstract: Taking the front casing as typical part， the adjustable pressure airbag was proposed to improve the machining accuracy of aviatic thin-walled parts. The orthogonal analysis method was adopted in the system to carry out the finite element simulation in thin-walled cutting， the cutting deformation under different work parameters was analyzed， and then the deformation trend of the cutting point changing with work parameters was studied. Thereby， the work parameters were optimized in thin-walled parts. As a result， the error caused by work parameters was reduced by more than 60%， which could directly provide guidance on the processing of thin-walled parts. On the basis of optimized work parameters， an adjustable pressure airbag was taken as the support. Using different pressure airbags according to the deformation of cutting points， the clamping deformation can be reduced by more than 40% on the basis of optimization， which will reduce the part deflection and control the machining precision of thin-walled parts.

Key words: aviatic thin-walled part, orthogonal analysis, finite element simulation, work optimization, pressure airbag

中图分类号:

V261.2

林文强，焦明裕，赵西松，喻先勇. 可调节气囊提高航空薄壁件加工精度的研究[J]. 东北大学学报:自然科学版, 2017, 38(3): 390-394.

LIN Wen-qiang， JIAO Ming-yu， ZHAO Xi-song， YU Xian-yong. Study on Improving the Machining Accuracy of Aviatic Thin-Walled Parts with the Adjustable Airbag[J]. Journal of Northeastern University Natural Science, 2017, 38(3): 390-394.

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可调节气囊提高航空薄壁件加工精度的研究

Study on Improving the Machining Accuracy of Aviatic Thin-Walled Parts with the Adjustable Airbag

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