Cylindrical product diameter detection system and detection method

The invention belongs to the technical field of measuring tools, and discloses a cylindrical product diameter detection system and method. The system is provided with an air cylinder for providing power output. An output end of the air cylinder is connected with a floating grating ruler, the air cylinder is connected to a controller through an electromagnetic valve, and the floating grating ruleris connected with the controller. And a placement block is arranged on a lower side of the floating grating ruler. The cylinder, a floating grating measurement mechanism and the V-shaped product placement block are adopted for measurement, the measurement of cylindrical products with different diameters and poor linearity is achieved, automatic measurement and measurement data uploading are achieved, the measurement accuracy is improved, and the system can adapt to different products with the diameters ranging from 0 mm to 50 mm provided by customers at present. 本发明属于测量工具技术领域，公开了一种圆柱体产品直径检测系统及检测方法，圆柱体产品直径检测系统设置有用于提供动力