Dual drive toggle rod mechanism for servo mechanical press and optimization method

Abstract

The invention discloses a dual drive toggle rod mechanism for a servo mechanical press and an optimization method. The technical scheme is that an upper toggle rod part comprises a first crank, a first connecting rod, a second toggle rod and a machine body; mechanism optimization is carried out with the stroke adopted as an optimization target; after mechanism parameters of optimization of the upper toggle rod part are acquired, the mechanism parameters are substituted into the entire dual drive toggle rod mechanism; a lower toggle rod part is optimized with the driving torque adopted as an optimization target; and through decoupling iterative optimization of stroke and driving torque of the upper toggle rod part and the lower toggle rod part, the problem that an optimal solution of the dual drive toggle rod mechanism is hard to acquire through adopting a traditional optimization method can be solved, optimization of the dual drive toggle rod mechanism for the servo mechanical press is achieved, the performance and adaptability of the press are improved, the stroke of the machine body structure and a sliding block can be guaranteed to meet the working requirement, the driving torque of the cranks is greatly reduced, and the capacity and cost of a servo motor are reduced. According to the dual drive toggle rod mechanism, the utilization is simple and convenient, the structure is reasonable, and the mechanism is convenient and practical.

Description

technical field [0001] The invention relates to the field of mechanical transmission, in particular to a double-drive toggle mechanism and an optimization method for a servo mechanical press. Background technique [0002] The mechanical press is one of the important mechanical equipment, and the mechanical press is mainly the toggle mechanical press. Because the toggle mechanical press has slow working stroke speed, large force ratio, long holding time of the slider at the bottom dead center, and good body rigidity, it is suitable for metal precision pressing or extrusion molding, and is widely used in machinery, Automotive, instrumentation and other industries. [0003] Due to the relatively fixed movement mode of the slider of the traditional toggle mechanical press, single function of the press, poor process adaptability, and high total energy consumption due to the continuous rotation of the flywheel driven by the motor, it is not suitable for the development of modern ...

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Problems solved by technology

[0005] However, the general double-drive toggle mechanism cannot give full play to the advantages of the above-mentioned working mechanism, and can only play a limited role in reducing the torque and instantaneous power of the driving motor and improving the working performance, which is not conducive to the use of the above-mentioned mechanism in the actual servo press. application

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