Collaborated measurement of three-dimensional position & orientation errors of assembled miniature devices with two vision systems
In assembly of miniature devices,the position and orientation of the parts to be assembled should be guaranteed during or after assembly.In some cases,the relative position or orientation errors among the parts can not be measured from only one direction using visual method,because of visual occlusion or for the features of parts located in a threedimensional way.An automatic assembly system for precise miniature devices is introduced.In the modular assembly system,two machine vision systems were employed for measurement of the three-dimensionally distributed assembly errors.High resolution CCD cameras and high position repeatability precision stages were integrated to realize high precision measurement in large work space.The two cameras worked in collaboration in measurement procedure to eliminate the influence of movement errors of the rotational or translational stages.A set of templates were designed for calibration of the vision systems and evaluation of the system’s measurement accuracy.
visual measurement machine vision system miniature device precise assembly
Xiaodong WANG Wei ZHANG Yi LUO Weimin YANG Liang CHEN
Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Techn Flight Automatic Control Research Institute, Aviation Industry Corporation of China, Xi’an,710065, C
国际会议
2012第八届精密工程测量和仪器仪表国际研讨会(ISPEMI2012)
成都
英文
1-6
2012-08-08（万方平台首次上网日期，不代表论文的发表时间）