• 论文 •

### 考虑壁板单向压紧制孔瞬时回弹的压紧力优化

1. 1. 南京航空航天大学 机电学院, 南京 210016;
2. 上海飞机制造有限公司 航空制造技术研究所, 上海 200436
• 收稿日期:2019-04-08 发布日期:2020-01-21
• 通讯作者: 王珉 E-mail:wangm@nuaa.edu.cn
• 作者简介:王威,男,硕士研究生。主要研究方向:飞机自动化装配技术、数值分析与自动化仿真技术等;王珉,男,博士,硕士生导师。主要研究方向:飞机自动化装配技术。

### Optimization of pressing force considering instantaneous springback in skin-side pressed drilling

WANG Wei1, WANG Min1, CHEN Wenliang1, XU Qinghe1, HUANG Wen2, JIANG Hongyu2

1. 1. College of Mechanical and Electronical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. Institute of Aeronautical Manufacturing Technology, Shanghai Aircraft Manufacturing Co., Ltd., Shanghai 200436, China
• Received:2019-04-08 Published:2020-01-21

Abstract: The automatic drilling for the docking of large parts of aircraft adopts the skin-side pressed drilling technology, and the instantaneous springback of the lamination material in the common automatic drilling system has serious influence on the drilling equipment and hole quality. The optimization analysis of the pressing force of the skin-side pressed drilling was carried out for this problem. The finite element simulation analysis method was used for the simulation of hole making process. According to the springback phenomenon in different environments, the optimal analysis scheme of pressing force was determined. Considering the influence of contact gap, instantaneous springback and drilling rigidity, multi-objective optimization analysis was carried out to obtain the optimal pressing force process parameters. The calculation results show that, in the automatic drilling of the docking area between the common frames of the aircraft, the optimal solution of the pressing force is 314.54 N when using twist drill with an axial force of 150 N, and 362.73 N when using automated integrated drill with an axial force of 100 N. Through on-site test, it was verified that the pressing force optimization analysis results meet the production requirements, and the actual optimal pressing force is less than 20 N lower than the pressing force optimization analysis results. Therefore, the different processing environments and other factors were considered to construct a reasonable range of process parameters.