The invention discloses an oil cylinder
stroke detection and control method based on hydraulic oil volume flow. The oil cylinder
stroke detection and control method is characterized by comprising thefollowing steps that the
volume change amount and the flow direction of the hydraulic oil in the oil cylinder are calculated by adopting a volumetric flow meter; the leakage coefficient is considered,according to the
volume change amount of the hydraulic oil in the oil cylinder, the flow direction and the sectional area of the cylinder
barrel, an oil cylinder
stroke calculation value expression is obtained; the actual stroke value of each time of the oil cylinder is measured and recorded manually, the obtained oil cylinder stroke calculation value is combined, the final oil cylinder stroke detection value expression is determined through
linear regression, and the
absolute zero point and the full stroke position of the stroke are calibrated according to the proximity switch
signal; the travel controller module is used for realizing collection, parameter setting, operational
processing, display and control output of the volumetric flow meter and the proximity switch
signal, and the oilcylinder stroke is accurately detected and positioned; the oil cylinder, the flow meter and the travel controller module are designed into an integrated device. The oil cylinder stroke detection andcontrol method is compact in structure, is not influenced by the stroke of an oil cylinder and is low in cost, does not need special
machining of the oil cylinder body, and is easy to realize.