Four-column press machine for electric upsetting and forging and oil way system

Abstract

The invention relates to a four-column press machine for electric upsetting and forging and an oil way system. The four-column press machine comprises an upper sliding block and a lower sliding block,the upper sliding block and the lower sliding block are respectively arranged on a guide column in a sleeving manner and are in sliding connection with the guide column, a telescopic rod on a hydraulic cylinder is fixedly connected with the upper sliding block, and a top plate, the upper sliding block, the lower sliding block and a base are connected through a pull rope linkage mechanism, so thatthe upper sliding block and the lower sliding block move away from each other or close to each other. According to the four-column press machine, through the arrangement of the pull rope linkage mechanism, an upper die on the upper sliding block and a lower die on the lower sliding block collide with each other to forge a workpiece, forging force generated by two-way collision is large, driving force needed for driving the upper sliding block to move is small, the upper sliding block can move through the hydraulic cylinder with a small oil cylinder, and the force needed for forging is achieved; and due to the fact that the oil cylinder of the hydraulic cylinder is small, oil charging is fast, and efficiency is high; and the feeding speed of the telescopic rod on the hydraulic cylinder ishigh, and production efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of stamping equipment, in particular to a four-column press and an oil circuit system for electric upsetting forging. Background technique [0002] Presses can be widely used in processes such as cutting, punching, blanking, bending, riveting and forming. Processed into parts by applying intense pressure to a metal blank to cause the metal to plastically deform and fracture. [0003] Presses include hydraulic presses, screw presses and crank presses. The stroke of crank presses cannot be adjusted, and there may be a bottom dead center. Screw presses are large in size and require high foundations. The hydraulic cylinder drives the movable upper mold, while the lower mold is in a fixed state. During forging, the hydraulic cylinder drives the upper mold to move down, and cooperates with the lower mold to forge the workpiece. Since the force required for forging is relatively large, the corresponding hydraulic ...

AI Technical Summary

Problems solved by technology

[0003] Presses include hydraulic presses, screw presses and crank presses. The stroke of crank presses cannot be adjusted, and there may be a bottom dead center. Screw presses are large in size and require high foundations. The hydraulic cylinder drives the movable upper mold, while the lower mold is in a fixed state. During forging, the hydraulic cylinder drives the upper mold to move down, and cooperates with the lower mold to forge the workpiece. Since the force required for forging is relatively large, the corresponding hydraulic cylinder It is also very large, so the speed is relatively slow during the oil filling process, and the feed speed of the hydraulic cylinder is also slow, thereby reducing production efficiency

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