金属制品外观目视检验环境光源研究与应用

Research and Application of Environmental Light Source for Visual Inspection of Metal Products Appearance

摘要: 外观检验是金属制品质检工序中的重要环节，常用的检验手段为目视检验，环境光源是影响检验人员判定的重要因素之一。本文对目视外观检验环境光源打光方向、光源色温、光照强度、目视距离等参数开展研究，确定打光方向为垂直、同向打光方式，光源色温为4000~6000 K、光照强度为500~1500 lx、目视距离为150~600 mm的光源条件下适宜开展外观检验工作，并依据产品尺寸大小、结构特点、表面特征等对光源参数进行细化分类，通过研究增强了现场环境光源使用的指导性与可操作性。

Abstract: Appearance inspection is an important part of the quality inspection process for metal products, and the commonly used inspection method is visual inspection. Environmental light sources are one of the important factors affecting the judgment of inspectors. This article studies the parameters of visual appearance inspection environment light source lighting direction, light source color temperature, light intensity, visual distance, etc. It determines that the lighting direction is vertical and the same direction lighting method. The light source color temperature is 4000~6000 K, the light intensity is 500~1500 lx, and the visual distance is 150~600 mm, which is suitable for conducting appearance inspection work. Based on product size, structural characteristics, surface features, etc., the light source parameters are refined and classified. Through research, the guidance and operability of on-site environmental light source use are enhanced.