Robust fixture design of compliant assembly process based on a support vector regression model

被引:13
作者
Yu, Kuigang [1 ,2 ,3 ]
机构
[1] Shandong Univ, Sch Mech Engn, Jinan, Shandong, Peoples R China
[2] Shandong Univ, Minist Educ, Key Lab High Efficiency & Clean Mech Mfg, Jinan, Shandong, Peoples R China
[3] Shandong Univ, Natl Demonstrat Ctr Expt Mech Engn Educ, Jinan, Shandong, Peoples R China
关键词
Fixture design; Robust design; Assembly variation modeling; Response surface model; CONFIGURATION-DESIGN; LAYOUT;
D O I
10.1007/s00170-019-03488-6
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Fixtures are used to locate and clamp parts and subassemblies during the compliant assembly process of automotive body parts. As a result, the assembly quality of compliant sheet metal parts is mainly determined by fixture locating layouts and variation sources, such as manufacturing variation of parts and fixture locating variation. This paper proposes a robust fixture design method of the compliant assembly process based on a support vector regression model. Firstly, an assembly variation modeling method of compliant sheet metal parts is discussed during the assembly subprocesses of fixture locating, welding gun clamping, weld finishing, and welding gun releasing. The combined assembly variation model describes a numeric relationship between the assembly variation of key measurement points and all variation sources under a certain fixture locating layout. Further, to solve the difficulty of directly obtaining the parameter model between the assembly variation and fixture design layouts under a certain variation source level, a response surface modeling method based on a support vector regression model is presented. And a whole assembly robust objective function is presented to realize the combining consideration of the whole assembly quality control with different assembly quality controls of different areas. Finally, a taillight bracket assembly is used to demonstrate the robust fixture design method. Results show that the proposed method is feasible and the assembly quality under the robust fixture locating layout has been greatly increased.
引用
收藏
页码:111 / 126
页数:16
相关论文
共 15 条
[1]   A variational method of robust fixture configuration design for 3-D workpieces [J].
Cai, W ;
Hu, SJ ;
Yuan, JX .
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME, 1997, 119 (4A) :593-602
[2]  
Camelio JA, 2002, MODELING DIAGNOSIS D
[3]   Development of robust fixture locating layout for machining workpieces [J].
Fan, L. ;
Kumar, A. Senthil .
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE, 2010, 224 (B12) :1792-1803
[4]   Robustness evaluation for compliant assembly systems [J].
Hu, SJ ;
Webbink, R ;
Lee, J ;
Long, Y .
JOURNAL OF MECHANICAL DESIGN, 2003, 125 (02) :262-267
[5]   Robust Fixture Layout Design for a Product Family Assembled in a Multistage Reconfigurable Line [J].
Izquierdo, L. Eduardo ;
Hu, S. Jack ;
Du, Hao ;
Jin, Ran ;
Jee, Haeseong ;
Shi, Jianjun .
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME, 2009, 131 (04) :0410081-0410089
[6]   Robust fixture configuration design for sheet metal assembly with laser welding [J].
Li, B ;
Shiu, BW ;
Lau, KJ .
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME, 2003, 125 (01) :120-127
[7]   Variation Analysis and Robust Fixture Design of a Flexible Fixturing System for Sheet Metal Assembly [J].
Li, Bing ;
Yu, Hongjian ;
Yang, Xiaojun ;
Hu, Ying .
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME, 2010, 132 (04) :0410141-04101413
[8]   Wavelets-based method for variation analysis of non-rigid assemblies [J].
Liao, XY ;
Wang, GG .
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE, 2005, 45 (14) :1551-1559
[9]   Variation simulation for deformable sheet metal assemblies using finite element methods [J].
Liu, SC ;
Hu, SJ .
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME, 1997, 119 (03) :368-374
[10]   Fixture layout optimization for deformable sheet metal workpiece [J].
Lu, Cong ;
Zhao, Hong-Wang .
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2015, 78 (1-4) :85-98