薄壁叶片叶型多工序加工检验模型建立方法

蔺小军; 崔彤; 杨碧颖; 杨锐; 辛晓鹏

doi:10.7527/S1000-6893.2019.23034

航空学报 >

2019 , Vol. 40 >Issue 11: 423034 - 423034

DOI: https://doi.org/10.7527/S1000-6893.2019.23034

材料工程与机械制造

薄壁叶片叶型多工序加工检验模型建立方法

蔺小军 ,
崔彤 ,
杨碧颖 ,
杨锐 ,
辛晓鹏

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1. 西北工业大学机电学院, 西安 710072;
2. 中国工程物理研究院机械制造工艺研究所, 绵阳 221116

收稿日期: 2019-03-27

修回日期: 2019-04-24

网络出版日期: 2019-10-11

基金资助

国家自然科学基金（51675439）

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Method for establishing machining and inspection model of multi-stage machining processes of thin-walled blades

LIN Xiaojun ,
CUI Tong ,
YANG Biying ,
YANG Rui ,
XIN Xiaopeng

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1. School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China;
2. Institute of Mechanical Manufacturing Technology, China Academy of Engineering Physics, Mianyang 221116, China

Received date: 2019-03-27

Revised date: 2019-04-24

Online published: 2019-10-11

Supported by

National Natural Science Foundation of China (51675439)

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摘要

为了提高叶片的加工质量、降低叶片成品的废品率和加工成本，以航空发动机薄壁叶片数控铣削、抛光、振动光饰、喷丸强化的典型加工工艺为研究对象，提出了一种面向多工序的加工变形误差补偿方法及加工检验模型的建立方法。分析各工序的加工变形规律，将多工序变形误差作为一个整体，利用反变形误差补偿方法建立数控精铣工序的加工模型。图纸要求的理论模型只作为最终检验模型，而工序检验模型根据后续加工误差累加对最终检验模型修改得到。通过实例验证，该方法有效地降低了叶片工序检验结论的误判率，保证了工序检验合格及最终检验合格的要求。

关键词： 多工序; 加工变形; 误差补偿; 加工模型; 检验模型

本文引用格式

蔺小军 , 崔彤 , 杨碧颖 , 杨锐 , 辛晓鹏 . 薄壁叶片叶型多工序加工检验模型建立方法[J]. 航空学报, 2019 , 40(11) : 423034 -423034 . DOI: 10.7527/S1000-6893.2019.23034

Abstract

In order to improve the machining quality of blade, reduce the scrap rate of finished blade and the machining cost. In this paper, the typical machining processes of aero-engine thin-walled blades, such as CNC milling, polishing, vibration polishing and shot peening, are taken as research objects. An error compensation method for a Multi-stage machining deformation and the method of establishing the machining model and inspection model are proposed. The theoretical model required by the drawing is only used as the final inspection model, and according to the accumulation of subsequent processing errors, the process inspection model is modified by the final inspection model. Through the example verification, the method proposed in this paper can effectively reduce the false positive rate of the blade process inspection and ensure the qualified process inspection and final inspection.

Key words： multi-stage machining processes; machining error; error compensation; machining model; Inspection models

参考文献

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