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为加工高强度、回弹大的轻量化板材,设计了一种曲柄驱动的立式传动肘杆伺服压力机。采用ADAMS软件对比分析了两种不同传动机构的工作特性。针对曲柄立式传动肘杆机构,通过矢量法建立滑块变速移动特性的运动学方程;运用ADAMS对传动机构各尺寸变量进行敏感度分析,以减少设计变量,再运用遗传算法对传动机构进行多目标优化,以减小滑块最大速度、滑块最大加速度和机构高度为优化目标。研究结果表明,优化后的曲柄立式传动肘杆机构的工作性能有较大提高,滑块最大速度降低了8.5%,滑块最大加速度降低了37.6%,曲柄最大扭矩降低了9%,机构高度降低了1%;同时该机构具有良好的保压性能和急回特性。
In order to process high-strength, rebound large lightweight panels, a crank-driven vertical drive toggle servo press was designed. Using ADAMS software comparative analysis of the working characteristics of two different transmission mechanism. In view of the crank-type toggle-toggle mechanism, the kinematics equation of the slider’s speed-changing moving characteristics was established by vector method. The ADAMS was used to analyze the sensitivity of each dimension variable of the transmission mechanism to reduce the design variables. Then the genetic algorithm was applied to the transmission mechanism Goal optimization to reduce the maximum speed of the slider, the maximum acceleration of the slider and the height of the body to optimize the goal. The results show that the working performance of the optimized crank-type vertical transmission toggling mechanism is greatly improved, the maximum speed of the slider is reduced by 8.5%, the maximum acceleration of the slider is reduced by 37.6%, the maximum torque of the crank is reduced by 9%, the height of the mechanism A decrease of 1%; at the same time the agency has good packing performance and quick response characteristics.