送钉系统作为飞机壁板自动钻铆机的重要组成部分，极大地影响着铆接效率和设备的稳定性。对沉头铆钉的软管气力输送系统进行分析，并根据沉头铆钉外形着重对铆钉运动、输送管道内径和管道入口输送气压进行深入研究。通过弯道卡钉分析，并结合铆钉输送动力系数，得到最优的管道内径；理论分析输送铆钉过程中的压强损失，并结合铆钉输送时间，计算得到合适的管道入口输送气压。最后通过不同内径管道送钉的试验验证了输送管道内径的选择方法，通过不同输送气压送钉的试验验证了管道入口输送气压的计算方法。
The rivet feeding system is a significant component of automatic aircraft panel drilling and riveting machines, and plays an important role in working efficiency and reliability of riveting. The pneumatic feeding system with the hosepipe for sunk head rivets is analyzed, and the rivet's motion, the interior diameter and inlet pressure of the feeding tube are studied considering the shape of sunk head rivets. The optimal interior diameter is obtained by analyzing rivet jamming in the bending tube and drag coefficients of rivet feeding. An appropriate inlet pressure is calculated by a theoretical analysis of the pressure loss of rivet feeding as well as the feeding time. The method for choosing the interior diameter is verified through the experiments on rivet feeding with different interior diameters, and the method for calculating the inlet pressure is verified through the experiments on rivet feeding with different inlet pressures.
[1] 王巍, 俞鸿均, 谷天慧. 大型飞机壁板组件先进装配技术[J]. 航空制造技术, 2016(5):42-46. WANG W, YU H J, GU T H. Advanced assembly technology of large aircraft panel components[J]. Aeronautical Manufacturing Technology, 2016(5):42-46(in Chinese).[2] 杜兆才, 姚艳彬, 王健. 机器人钻铆系统研究现状及发展趋势[J]. 航空制造技术, 2015(4):26-31. DU Z C, YAO Y B, WANG J. Research status and development trends of robot drilling and riveting system[J]. Aeronautical Manufacturing Technology, 2015(4):26-31(in Chinese).[3] 王珉, 陈文亮, 郝鹏飞, 等. 飞机数字化自动钻铆系统及其关键技术[J]. 航空制造技术, 2013(1/2):80-83. WANG M, CHEN W L, HAO P F, et al. Aircraft automatic drilling and riveting system and its key technology[J]. Aeronautical Manufacturing Technology, 2013(1/2):80-83(in Chinese).[4] 许国康. 大型飞机自动化装配技术[J]. 航空学报, 2008, 29(3):734-740. XU G K. Automatic assembly technology for large aircraft[J]. Acta Aeronautica et Astronautica Sinica, 2008, 29(3):734-740(in Chinese).[5] REMLEY D, REDIGER J, HAWORTH P, et al. Slug rivet machine installs 16 rivets per minute drill rivet shave:SAE-2009-01-3155[R]. Warrendale, PA:SAE, 2009.[6] OLSSON T, HAAGE M, KIHLMAN H, et al. Cost-efficient drilling using industrial robots with high-bandwidth force feedback[J]. Robotics and Computer-Integrated Manufacturing, 2010, 26(1):24-38.[7] BI S S, LIANG J. Robotic drilling system for titanium structures[J]. The International Journal of Advanced Manufacturing Technology, 2011, 54(5-8):767-774.[8] DEVLIEG R, SITTON K, FEIKERT E, et al. Once (one-sided cell end effector) robotic drilling system:SAE-2002-01-2626[R]. Warrendale, PA:SAE, 2002.[9] SARH B. Assembly techniques for space vehicles:SAE-2000-01-3028[R]. Warrendale, PA:SAE, 2000.[10] BOAD C L, COLEBOURN D. Stick fastener feed system for large variety & small quantity:SAE-2008-01-2320[R]. Warrendale, PA:SAE, 2008.[11] RINK P, GIVLER G, STANCIK B, et al. New generation automated fastener feed systems:SAE-952169[R]. Warrendale, PA:SAE, 1995.[12] 邓锋. MPAC自动钻铆机[J]. 航空制造技术, 2010(6):26-29. DENG F. MPAC automatic drilling and riveting machine[J]. Aeronautical Manufacturing Technology, 2010(6):26-29(in Chinese).[13] STANSBURY E C, BIGONEY B, ALLEN R. E7000 high-speed CNC fuselage riveting cell:SAE-13ATC-0086[R]. Warrendale, PA:SAE, 2012.[14] BORNES P, BROWN M, HUBERT C, et al. Womb to tomb SPC control of fasteners from rivet manufacture to installation using existing software:SAE-2003-01-2958[R]. Warrendale, PA:SAE, 2003.[15] TIAN W, ZHOU Z F, LIAO W H. Analysis and investigation of a rivet feeding tube in an aircraft automatic drilling and riveting system[J]. International Journal of Advanced Manufacturing Technology, 2016, 82(5-8):973-983.[16] 龚辉. 基于工业机器人平台的自动供钉系统设计研究[D]. 杭州:浙江大学, 2012:7-8. GONG H. Design and research of automatic rivets feeding system based on industry robots platform[D].Hangzhou:Zhejiang University, 2012:7-8(in Chinese).[17] 李菡. 基于双机器人协同的自动钻铆终端器及其自动供钉装置的设计与研究[D]. 杭州:浙江大学, 2010:32-49. LI H. Study on dual-robot-based drilling & riveting end-effector and automated rivet feeding apparatus[D]. Hangzhou:Zhejiang University, 2010:32-49(in Chinese).[18] 黄标. 气力输送[M]. 上海:上海科学技术出版社, 1984:217-229. HUANG B. Pneumatic transmission[M]. Shanghai:Shanghai Scientific & Technical Publishers, 1984:217-229(in Chinese).[19] 陆志良. 空气动力学[M]. 北京:北京航空航天大学出版社, 2009:63-65. LU Z L. Aerodynamics[M]. Beijing:Beihang University Press, 2009:63-65(in Chinese).[20] 侯国祥, 孙江龙, 王先洲, 等. 工程流体力学[M]. 北京:机械工业出版社, 2006:88-99. HOU G X, SUN J L, WANG X Z, et al. Engineering fluid mechanics[M]. Beijing:China Machine Press, 2006:88-99(in Chinese).
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