Dual drive toggle rod mechanism for servo mechanical press and optimization method
2016
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.
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