Improvement of an Automatic Optical Inspection System for the Volute and Torsion Springs

• Main Authors: Kai-Lin Chang, 張鎧麟
• Other Authors: Geo-Ry Tang
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/86130925865723540927

碩士 === 國立臺灣科技大學 === 機械工程系 === 103 === This study aims at the modification of a prototype automatic optical inspection machine for the volute and torsion springs. The improvements focus on reducing the total cost to meet the production requirements. The system consists of mechanism module, electrical control module, vision module and software module. In addition, a classification mechanism is included to remove the defected products. Design changes cover both hardware and software. Hardware changes include replacing highest-price motion controller card by pulse generator to control motor and using a cheaper data acquisition box instead of the expensive data acquisition card. Two free software packages, Visual Studio Express C++ and OpenCV library, are chosen to develop the system programs. Based on the statistical analysis, the inspection machine has accuracy rates near 93% and 99% for the volute and torsion springs.