Extra-large table-board press machine with guide rail lubricating structure

The invention relates to the technical field of press machines, and provides a press machine with an extra-large table top and a guide rail lubricating structure, the press machine comprises a press machine body and a storage tank, the storage tank is mounted on the press machine body, and a sliding block is arranged on the press machine body and connected with the press machine body through a guide rail; an oil storage tank and a flow dividing tank are arranged on the press machine body; the storage tank is connected with the oil storage tank and the flow dividing tank through connecting pipes; a backflow box is arranged at the bottom of the press machine body and connected with the flow dividing box through multiple sets of oil guide pipes which are located between the guide rails. A filter group and a filter pipe are arranged in the reflux box, and the filter assembly can be clamped in the filter pipe; an oil well pump is arranged on the oil storage tank and connected with the oil storage tank and the back