Twelve-motor parallel drive multi-link mechanical servo press

Abstract

The invention relates to a twelve-motor parallel drive multi-link mechanical servo press, which belongs to the technical field of forging machinery. The twelve-motor parallel drive multi-link mechanical servo press comprises a rack, linear drive mechanisms, a parallel mechanism, a toggle mechanism and stamping sliders, wherein the linear drive mechanisms comprise six groups with the same structure; the parallel mechanism is a six-degree-of-freedom parallel mechanism; the six groups of linear drive mechanisms are connected with the six-degree-of-freedom parallel mechanism; the toggle mechanismis connected with the six-degree-of-freedom parallel mechanism and the stamping sliders respectively; and the rack is sleeved outside the drive mechanisms and the stamping sliders. The twelve-motor parallel drive multi-link mechanical servo press has the advantages of simple structure, easy control, low manufacturing cost, and capability of solving the problem that large-tonnage servo presses cannot be built because the conventional servo presses are limited by poor loading capacity of ball screws and small power and output torque of servo motors.

Description

technical field [0001] The invention relates to a device in the technical field of forging machinery, in particular to a mechanical multi-link servo press driven by twelve motors in parallel. Background technique [0002] Presses are widely used forging equipment in the field of metal forming processing. There are many varieties and quantities, among which mechanical presses are the most widely used. The development of modern manufacturing technology requires that the press can not only operate at high speed, high precision and large load, but also have greater flexibility, and can change the output motion law quickly and conveniently. The traditional mechanical press has single motion characteristics and poor process applicability. In recent years, with the gradual development of AC servo motor-driven forming equipment technology, various AC servo-driven presses with adjustable slider motion curves have appeared, which has greatly improved the working performance and proce...

AI Technical Summary

Problems solved by technology

Some servo press drive mechanisms use two servo motors for redundant drive, but the two servo motors must be synchronized at all times to avoid motion interference caused by input asynchrony

Although this can increase the input power and the forming pressure of the press, it increases the difficulty of the control strategy, and the stability of the control becomes worse. Any input error will cause the drive mechanism to fail to work normally or even be damaged.

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