Research on tolerance modeling method and 3D tolerance analysis technology based on STD

2nd International Conference on Frontiers of Materials Synthesis and Processing

Fan, Jinwei^1 ; Wang, Peitong^1 ; Zhang, Hongliang^1 ; Ma, Ning^1 ; Yin, Jian^1

College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing

10024, China^1

关键词: Description method;    Dimensional tolerance;    Functional elements;    Functional requirement;    Geometrical tolerances;    Small displacement;    Surface modeling;    Tolerance modeling;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/493/1/012050/pdf
DOI  :  10.1088/1757-899X/493/1/012050

来源: IOP

【 摘 要 】

The description methods of various tolerance zones and kinematic links based on SDT are discussed. The surfacemodels are applied to describe an assembly, and SDT is used to express the relative position between any two surfaces of anassembly; According to the effect of each functional element on the whole functional requirements of products, the 3-1; dimension-chain is created, and 3-D dimensional and geometrical tolerance analysis for assembly is realized. The engineering example involving 3-D tolerance analysis is given to test the proposed method.