基于机器视觉的点胶系统的设计与研究

传统的点胶设备通常是基于人工手动固定输入点胶位置及点胶路径来驱动点胶阀的半自动化设备,这样的设备不仅无法适应某些有一定尺寸公差的产品,而且生产效率也打不到理想水平。针对这种情况,该系统把视觉技术引入到点胶位置的测量过程中,设计了一种利用视觉技术抓取点胶位置的自动化点胶系统。基于 Visual C#编程平台利用eVision图像处理软件对胶片的图像进行分析,利用图像预处理和形态学操作来实现点胶起始坐标的提取。实验表明：系统的点胶精度可达0.014 mm,重复精度可以控制在0.012 mm以内,很大程度上解决了传统点胶技术稳定性差、点胶精度低的问题。

Design and research of dispensing system based on machine vision

Conventional dispensing devices are typically semi-automation equipments,and the dispensing valve is driven by manually dispensing position and dispensing path,but the equipments are unable to adapt to some products which have certain dimensional tolerances, and the production efficiency can not reach the desired level. In order to compensate for the defects,the vision technology is applied to the measurement of dispensing position,and the automatic dispensing system which depends on the vision technology to obtain the dispensing position is designed.The program is edited by Visual C #,the images of the film are analyzed by eVision and the starting coordinate is obtained by Image preprocessing and morphological operation.Experimental results show that the dispensing accuracy of the system is up to 0.014 mm and the repeat accuracy is controlled within 0.012 mm,so the dispensing technology largely solves the problem of poor stability and low dispensing precision.