Fixture Locating Precision Pre-Analysis for One-plane-dual-pins fixture System

2nd International Conference on Design and Manufacturing Engineering

工业技术;机械制造

Liu, Wei-Dong^1 ; Guo, Jinhui^1

College of Automatic Science and Engineering, South China University of Technology, Guangzhou

510640, China^1

关键词: Fabrication errors;    Fixture system;    Locating error;    Workpiece;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/239/1/012005/pdf
DOI  :  10.1088/1757-899X/239/1/012005

学科分类：工业工程学

来源: IOP

【 摘 要 】

Type two assembly is mainly fixed by additional fixture but not its own features, and the one-plane-dual-pins fixture system is commonly used for type two assembly assurance; hence, the locating pre-analysis for one-plane-dual-pins fixture system is introduced. The locating variation in one-plane-dual-pins fixture system leads to the gesture displacement of the workpiece in space. Variation source that affects the fixture locating precision mainly includes the fixture locating error and the fabrication error of the fitting holes. While the fixture error and fabrication error of the fitting holes are confirmed, the calculation for the fixture locating error of assembled workpiece is introduced. The fixture locating error simulation is further researched, and one example for fixture locating error propagation is illustrated.