# [1]张磊,张志胜,周一帆,等.一种共用定位销的多工序夹具布局优化设计准则[J].东南大学学报(自然科学版),2013,43(3):498-502.[doi:10.3969/j.issn.1001-0505.2013.03.010] 　Zhang Lei,Zhang Zhisheng,et al.Optimal design criterion for multi-stage fixture layout with a shared locating pin[J].Journal of Southeast University (Natural Science Edition),2013,43(3):498-502.[doi:10.3969/j.issn.1001-0505.2013.03.010] 点击复制 一种共用定位销的多工序夹具布局优化设计准则() 分享到： var jiathis_config = { data_track_clickback: true };

43

2013年第3期

498-502

2013-05-20

## 文章信息/Info

Title:
Optimal design criterion for multi-stage fixture layout with a shared locating pin

1东南大学机械工程学院, 南京 211189; 2徐州工程学院机电工程学院, 徐州 221018
Author(s):
1 School of Mechanical Engineering, Southeast University, Nanjing 211189, China
2 School of Mechanical and Electrical Engineering, Xuzhou Institute of Technology, Xuzhou 221018, China

Keywords:

TH161
DOI:
10.3969/j.issn.1001-0505.2013.03.010

Abstract:
The optimal design of fixture layout with a shared locating pin in a multi-stage assembly process is brought into focus and a novel optimal design criterion is proposed. First, a state space model for individual parts variation propagation and accumulation is developed based on the common state space equations. Then, using mathematical and statistical methods, a covariance matrix is derived from the presented model to describe the relationship between translation deviations and angular rotation deviations of the key product characteristics. According to its statistical meaning, the trace of the covariance matrix is extracted as the optimal design criterion for the design of fixture layout. Through a four-stage assembly example and using an exchange algorithm, the proposed criterion is proved to be effective and more efficient than the traditional one, since the calculation of the high-dimensional complicated matrices is replaced by the calculation of Euclidean distance.

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