Novel multi-link overload servo press

Abstract

The invention discloses a novel multi-link overload servo press. The novel multi-link overload servo press comprises a rack, a sliding block and a transmission mechanism, wherein the rack comprises apair of sliding rails which are arranged between a base and a top plate; the transmission mechanism is fixed to the top plate, and a power plant is used for driving the sliding block to slide betweenthe sliding rails by virtue of the transmission mechanism; the transmission mechanism comprises a connecting rod; a pair of slider-crank mechanisms are arranged on the top end of the connecting rod, the pair of slider-crank mechanisms are mirrored with each other and are arranged on the top of the top plate, and the other end is connected with the power plant; and a pair of toggle rod mechanisms are arranged on the bottom end of the connecting rod, the pair of toggle rod mechanisms are mirrored with each other and are arranged at the bottom of the top plate, and the other end is connected withthe sliding block. A multistage speed reducing and torsion increasing device is arranged, so that the pressure of the press is increased; a parallel driving mode of a dual degree-of-freedom parallelstructure and double servo motors is adopted, so that the integral power of the press is increased, and the problems of synchronization of the servo motors and dynamic interference, power loss and thelike are effectively solved; and the antisymmetric type slider-crank mechanisms are arranged, so that the structural rigidity and the stability are increased, the mechanical life of the press is prolonged, the power and torque output stability of actuating components of the press is increased, and good control performance is obtained.

Description

technical field [0001] The invention relates to a press, in particular to a novel multi-link heavy-duty servo press. Background technique [0002] Presses (including punch presses and hydraulic presses) are versatile presses with exquisite structure. With the characteristics of wide application and high production efficiency, the press can be widely used in cutting, punching, blanking, bending, riveting and forming processes. [0003] Presses are divided into three categories: screw presses, crank presses and hydraulic presses. [0004] Crank presses are also called mechanical presses. [0005] The screw press has no fixed bottom dead center, and for larger die forgings, it can be formed by multiple strikes, and single strike, continuous strike and inching can be performed. The impact force is related to the deformation of the workpiece. The impact force is small when the deformation is large, and the impact force is large when the deformation is small (such as cold shock...

AI Technical Summary

Problems solved by technology

[0010] 1. It is difficult for servo motors in large machine tools to meet the needs of high power and high torque;

[0011] 2. The synchronous control error of the servo motor;

[0012] 3. The backlash of the meshing gear in the deceleration system will cause a phase difference between the input ends of the servo motor, which will cause problems such as motion interference and power loss of the synchronous servo motor, thereby reducing the effective output capacity of the servo press

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