Open AccessHigh precision and fast solution method for linearized assembly contact point of geometric error surface
Author(s) -
Zhihua Liu,
Zhijing Zhang,
Jing Xin,
Weimin Zhang,
Zifu Wang,
Ke Shang
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/563/3/032021
Subject(s) - point cloud , surface (topology) , point (geometry) , process (computing) , basis (linear algebra) , computer science , plane (geometry) , algorithm , geometric modeling , geometry , mathematics , computer vision , operating system
The geometric error modeling method for assembly[1] proposes a feasible basis for the assembly process considering manufacturing error. However, contacting two mounting surfaces with geometric error and finding their actual contact points are two main difficulties in the study of real three-dimensional parts assembly methods. A high-precision and fast solution method for linearized assembly contact points considering geometric errors is proposed by calculating the point cloud spatial pose of the actual contact surface. This method is suitable for spatial pose calculation in high precision plane assembly of rigid parts, which enables fast, accurate and quantitative solution of the positional relationship of components during assembly and measurement, and improves the accuracy and efficiency of spatial pose prediction and control.