What are the factors that affect the pressing accuracy of the four-column hydraulic press

Shanghai WORLD Press Machine Machinery Equipment Co., Ltd. is a manufacturer specializing in the design, manufacture, sales and maintenance of various standard and non-standard hydraulic machinery and hydraulic machinery, CNC machinery and automatic machinery. The main products of WORLD Press Machine machinery: presses, single-column hydraulic presses, four-column hydraulic presses, sliding table hydraulic presses, multi-station hydraulic presses, etc.

Factors include three aspects of process, mold and forming equipment: deviation of blank volume, dimensional accuracy and wear of cavity, temperature fluctuation of mold and pressed part, elastic deformation of mold and pressed part, shape and size of pressed part, and forming four-column Accuracy and stiffness of hydraulic presses, etc. Using elastic-plastic and thermo-mechanical coupling finite element technology, a process-mold-equipment system model can be established to analyze the interaction between the process, mold and forming equipment, so as to formulate a reasonable process that meets the forming requirements of the part, and design a mold that meets the process requirements. with forming equipment.

The electrical system plays the role of a bridge in the control system of the four-column hydraulic press. On the one hand, it converts the instructions and data sent by the PLC into corresponding electrical control signals, controls the corresponding hydraulic execution components in the hydraulic system, and completes the direct connection of each hydraulic component. Operation: On the other hand, it feeds back the status information collected from the hydraulic system to facilitate shutdown control. At the same time, the electrical system of the four-column hydraulic press has internal switch self-locking and closed-loop control to increase the robustness and transient response capability of the control.

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