A visual measurement method on the parameters of gear tooth

摘要

With the constant improvement requirement of gear accuracy in recent years, gear image detection technology is one of the effective means of measurement. Gear parameters measurement by non-contact method is more and more applied to the actual production and quality control link. In this paper a method for measuring the tooth profile of gear by machine vision is presented. This measurement system uses contour fitting method to measure the gear tooth basic parameters by event structure program. The system includes camera and a backlight source for lighting. It use LabVIEW graphical programming platform IMAQ module to analysis the collected gear image processed and analysis the measurement error. It can do real time calculation and display the error of measurement. Experimental results show that this system runs stably, good repeatability, high measurement precision.