A dynamic balance mechanism for medium and high speed medium and large presses

Abstract

The invention discloses a dynamic balancing mechanism for a middle-high speed and middle-large sized pressing machine. The dynamic balancing mechanism is characterized by comprising a rack, a balancing weight, a decentered fixing seat, a connecting bar and a bent axle arranged below the connecting bar, wherein one end of the bent axle is in shaft connection with the decentered fixing seat; the other end of the bent axle is in shaft connection with the rack; the top of the connecting bar is in shaft connection with the balancing weight; the bottom of the connecting bar is in shaft connection with the decentered fixing seat. The dynamic balancing mechanism has the advantages that during operation, the bent axle performs rotational motion; the connecting bar performs pendulum motion; the balancing weight performs straight reciprocating motion in the direction opposite to the moving direction of a sliding block; during the process that the sliding block and the balancing mechanism moves in opposite directions, the vibration of the sliding block is counteracted, so that the vibration of the whole pressing machine is reduced, the stability and the production efficiency of the pressing machine are improved. Therefore, the requirements for long journey and middle-high speed of the middle-large sized pressing machine can be met, and the technological adaptability is wide.

Description

technical field [0001] The invention relates to a press, in particular to a dynamic balance mechanism for a medium-high-speed medium-large press. Background technique [0002] When the press is working, driven by the transmission mechanism, the slider and the upper die reciprocate linearly up and down to realize stamping. Due to the high-speed up-and-down linear reciprocating motion of the slider and the upper die, and the large inertia of the passive part, the vibration of the press is relatively large. When the inertia of the passive parts such as the slider and the upper die is large and the vibration is obvious, it is difficult to achieve the purpose of medium and high-speed stamping without a dynamic balance mechanism. The existing high-speed small press machine has a small inertia of the passive part, and a dynamic balance block is arranged on the crankshaft. The structure is simple, the installation is convenient, and the effect of improving vibration is good. The i...

AI Technical Summary

Problems solved by technology

Therefore, the existing medium and large presses generally can only meet the long stroke (determined by the stamping product and process), but cannot achieve the purpose of medium and high speed

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