Floating pressing speed control structure and control method

The invention discloses a floating pressing speed control structure and a control method, and belongs to the field of hydraulic equipment. Motion control of an extrusion beam and a floating beam can be achieved through one pump set, and the equipment cost is reduced. The floating pressing speed control structure comprises an upper cross beam, a lower cross beam and stand columns, and the extrusion beam and the floating beam are slidably installed on the stand columns. The floating beam comprises an extrusion hole and an extrusion cylinder, the extrusion beam comprises an upper pressing head, and a main oil cylinder for controlling the extrusion beam to ascend and descend is arranged on the upper cross beam. Two floating oil cylinders are arranged on the lower cross beam. When the extrusion beam extrudes a material located in an extrusion cylinder through the upper pressing head, oil in the main oil cylinder enters the two floating oil cylinders to control the floating beam to move downwards, and a proportiona