Automatic Visual Inspection System of Gas Valve's External Taper Thread Based on Image Domain

被引：2

作者：

Zhang, Xuechang ^{[1
]}

Zhang, Xu ^{[2
]}

Lou, Yinghou ^{[1
]}

Chen, Junhua ^{[1
]}

机构：

[1] Zhejiang Univ, Ningbo Inst Technol, Sch Mech Engn, Ningbo 315100, Zhejiang, Peoples R China

[2] Shanghai Univ Engn sci, Coll Mech Engn, Shanghai 201620, Peoples R China

来源：

ADVANCES IN ENGINEERING DESIGN AND OPTIMIZATION, PTS 1 AND 2 | 2011年 / 37-38卷

关键词：

Visual inspection; External taper thread; Gas valve; Image domain; MACHINE-VISION; COMPUTER VISION;

D O I：

10.4028/www.scientific.net/AMM.37-38.207

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The failure of the gas valve's external screw taper thread is a very serious problem which may result in accidents. Routine inspection on the threads are thus necessary. The efficiency of traditional manual testing methods can not meet the production requirements. An automatic visual inspection system for gas valve's exteranl screw taper thread was presented in the paper. The system consists of a high-performance 200 megapixels CCD camera, a LED backlight and a holder of gas valve. Through image acquisition, image processing, edge detection and feature dimension measurement, the system can effectively measure the parameters of taper thread such as angle of thread, depth of thread, taper angle of thread on image domain. It can meet the testing requirements of the external screw taper thread and has wide application perspective.

引用

页码：207 / +

页数：2