Hydraulic shaping press, for metal plates, has feed units which charge the tool at structured volumes and pressures, in a simple hydraulic flow system, to give short press cycle times

摘要

The shaping press, using hydraulic pressure, has a press table (1) to carry a tool (2) which is charged with a hydraulic fluid, together with the inflow and outflow lines for the fluid. The tool has at least one opening (3) in the base which matches at least one opening (4) in the press table, with a seal at the junction between the tool and the table. The hydraulic fluid flow lines are secured to the press table. The unit (5) to charge the tool works with a high fluid volume at a low pressure, and a second unit (6) to give an initial bend to the workpiece operates at a medium volumes and pressure. The third unit (7) for the final calibration gives a high pressure with a low fluid volume.