Online test method and device for servo hydraulic cylinder of rolling mill, medium and electronic equipment

The invention discloses a rolling mill servo hydraulic cylinder online test method and device, a medium and electronic equipment, and the method comprises the steps: obtaining the pressure maintaining test force and the pressure maintaining test time of a servo hydraulic cylinder; the servo hydraulic cylinders on the two sides of the rolling mill are reset; simulating the working state of the rolling mill; the servo hydraulic cylinder is controlled to press downwards, and when the rolling force resultant force of the servo hydraulic cylinder is larger than or equal to the pressure maintaining testing force, pressing is stopped; keeping the pressing state of the servo hydraulic cylinder, wherein the keeping time is longer than or equal to the pressure keeping test time; and detecting functional precision parameters of the servo hydraulic cylinder. According to the invention, the rolling mill servo hydraulic cylinder can be tested on line, and the production cost is reduced. 本申请公开了一种轧机伺服液压缸在线测试方法、装置、介质及电子设备，其中，