Lower ram micromotion full-hydraulic counterblow hammer

Abstract

The invention discloses a full hydraulic counterblow hammer with a micro-displacement lower hammer head, which comprises a lower hammer head, an upper hammer head, a die holder, a die and a program-controlled full hydraulic power head. The invention is characterized in that balancing hydraulic cylinders are arranged at two bottom sides of the lower hammer head to achieve the micro-displacement of the lower hammer head, and the program-controlled full hydraulic power head drives the upper hammer head to move. The upper and the lower hammer heads hit to each other in a way of non-uniform velocity and unequal travel based on full hydraulic drive and hydraulic linkage. Both the movement velocity and travel of the lower hammer head are smaller than those of the upper hammer head. The counterblow hammer has the advantages of micro-displacement of the lower hammer head, full hydraulic drive, automatic control of hydraulic linkage and high reliability.

Description

technical field [0001] The invention relates to metal forming machining equipment, in particular to a hammer in a forging equipment, which utilizes full hydraulic drive and hydraulic linkage to realize the micro-movement of the lower hammer head and full hydraulic counter-hammer. Background technique [0002] The existing domestic hammers are all gas-driven counter hammers in terms of driving principle, that is, the expansion of gas is used to drive the upper hammer head to drive the lower hammer head to move towards each other through mechanical linkage to achieve counter impact. The performance is poor, and it is difficult to realize the automatic control of the striking energy; from the perspective of the linkage mode of the upper and lower hammer heads, it is all mechanical linkage, and the upper and lower hammer heads are equal in energy and constant speed. Due to the high frequency of hammering, the reliability of mechanical linkage is poor; Seen from the moving speed ...

AI Technical Summary

Problems solved by technology

[0002] The existing domestic hammers are all gas-driven counter hammers in terms of driving principle, that is, the expansion of gas is used to drive the upper hammer head to drive the lower hammer head to move towards each other through mechanical linkage to achieve counter impact. The performance is poor, and it is difficult to realize the automatic control of the striking energy; from the perspective of the linkage mode of the upper and lower hammer heads, it is all mechanical linkage, and the upper and lower hammer heads are equal in energy and constant speed. Due to the high frequency of hammering, the reliability of mechanical linkage is poor; From the perspective of the moving speed and moving stroke of the upper and lower hammers, it is a constant speed and equal stroke. Since the lower hammer moves faster and has a larger stroke, it is not easy to operate.

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