Transmission system suitable for large-tonnage alternating current servo press

Abstract

The invention discloses a transmission system suitable for a large-tonnage alternating current servo press. The output shaft of a disk-type permanent magnet synchronous servo motor and a planet gear speed reducer are made into integral structure; the screw of a driving mechanism and two nuts arranged on the nut form a ball screw structure; the screw is connected with the planet gear speed reducer; the left and the right of a top bar as well as the front and the back of the top bar are symmetrically provided with double toggle rod boosting mechanisms; a symmetrical oscillating rod input type boosting mechanism is arrange between the top bar and the double toggle rod boosting mechanisms; a three-level boosting mechanism causes the amplification multiple of the boosting mechanisms in the beginning stage to be above 15 times; and the amplification multiple is bigger and bigger along with the shaping process to lower the power of the disk-type permanent magnet synchronous servo motor. The transmission system can provide large amplification multiple and has the advantages of obvious boosting effect, large effective boosting travel, small integral structural size, big sliding block travel, quick virtual travel, high working efficiency, quick feeding, low shaping speed and the like, and unbalance loading is simultaneously eliminated.

Description

technical field [0001] The invention belongs to the technical field of servo presses, in particular to a transmission system suitable for large-tonnage AC servo presses. Background technique [0002] Large mechanical presses are indispensable manufacturing equipment in important industrial fields such as machinery, electronics, metallurgy, chemicals, automobiles, military industry, aviation, and aerospace. The servo press has good flexibility, low noise and high precision, can adapt to the characteristics of rapid market changes and small batches, and has the advantages of fast, stable and low-cost traditional presses. The digital heavy-duty mechanical drive technology based on servo motor is the development trend of forging machinery. The servo motor cooperates with the new control system, which can make the slider accelerate, decelerate or stop at any time during operation, with flexible and free movements, high repeatability at the bottom dead center, and better flexibil...

AI Technical Summary

Problems solved by technology

[0003] At present, the common booster structures include the toggle-type booster mechanism of Amino Corporation in Japan, the toggle toggle structure of Komatsu Corporation in Japan, and some improved transmission structures based on them, but these transmission structures are only suitable for small Tonnage presses and large-tonnage presses adopt this transmission structure, and the force increase effect is not obvious within the nominal force stroke range, that is, the initial force increase effect is small, and the terminal force increase effect is large. The overall mechanism size is large, the slider stroke is short, and the space Disadvantages such as slow travel speed and low work efficiency

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