Hydraulic cnc press brake machine worktable hydraulic automatic deflection compensation mechanism, which consists of a set of cylinders installed in the lower table.The position and size of each compensation cylinder is designed according to the deflection compensation curve of the slide and table finite element analysis.Hydraulic compensation is achieved through the relative displacement between the front, middle and rear plates to compensate for the bulging of the neutral plate.The principle of this is that the projection is achieved by the elastic deformation of the steel plate itself, so that the amount of compensation can be adjusted within the elastic range of the table.