Four-Circuit Protection Valve Opening Pressure Automatic Adjustment System Based on Machine Vision

Aiming at the problem of non - intelligent opening pressure regulation of four-circuit protection valve, a set of automatic adjustment system for four - circuit protection valve opening pressure is designed. The system of the host computer takes LabVIEW software as the development platform, and the programmable logic controller PLC as the next machine, with using COGNEX intelligent camera to accurately locate the four exhaust center coordinates of four-circuit protection valve, coordinating with OPC server communication and NI Assistant camera calibration and other technologies, so that the servo movement system dynamically controls tightening mechanism automatically adjusts the four-circuit protection valve opening pressure. Online authenticating is performed on the two-station hardware experiment platform, and the results show that the system is fast and stable, which also meets the requirements of the industrial positioning accuracy of less than or equal to 0.5mm, and has a 95% success rate of opening pressure adjustment.