Open AccessAutomatic high-precision measurement technology of special-shaped surface parts based on robot arms
Author(s) -
Zhiguang Jiang,
Lijian Zhang,
Tiecheng Qiu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1693/1/012214
Subject(s) - robot , photogrammetry , surface (topology) , calibration , computer vision , deformation (meteorology) , computer science , system of measurement , industrial robot , artificial intelligence , coordinate system , coordinate measuring machine , point (geometry) , scale (ratio) , engineering , mechanical engineering , materials science , mathematics , physics , geometry , statistics , astronomy , composite material , quantum mechanics
In order to meet the requirements of large-scale, special-shaped surface, high-precision surface measurement of product parts, an automated, high-precision robot arm measurement system based on industrial robots is proposed. According to the D-H method, the relative posture conversion relationship between the robot arm and the elastic probe is discussed. In addition, on the premise of considering the contact deformation between the elastic probe and the measuring surface, the coordinate data of the measuring point is obtained based on the probe deformation model. At the same time, the accuracy calibration is performed by means of visual photogrammetry, and the validity of the coordinate measurement data of the profiled surface is guaranteed.