【摘要】：為加工高強(qiáng)度、回彈大的輕量化板材,設(shè)計(jì)了一種曲柄驅(qū)動(dòng)的立式傳動(dòng)肘桿伺服壓力機(jī)。采用ADAMS軟件對(duì)比分析了兩種不同傳動(dòng)機(jī)構(gòu)的工作特性。針對(duì)曲柄立式傳動(dòng)肘桿機(jī)構(gòu),通過矢量法建立滑塊變速移動(dòng)特性的運(yùn)動(dòng)學(xué)方程;運(yùn)用ADAMS對(duì)傳動(dòng)機(jī)構(gòu)各尺寸變量進(jìn)行敏感度分析,以減少設(shè)計(jì)變量,再運(yùn)用遺傳算法對(duì)傳動(dòng)機(jī)構(gòu)進(jìn)行多目標(biāo)優(yōu)化,以減小滑塊最大速度、滑塊最大加速度和機(jī)構(gòu)高度為優(yōu)化目標(biāo)。研究結(jié)果表明,優(yōu)化后的曲柄立式傳動(dòng)肘桿機(jī)構(gòu)的工作性能有較大提高,滑塊最大速度降低了8.5%,滑塊最大加速度降低了37.6%,曲柄最大扭矩降低了9%,機(jī)構(gòu)高度降低了1%;同時(shí)該機(jī)構(gòu)具有良好的保壓性能和急回特性。
[Abstract]:In order to process lightweight plate with high strength and large springback, a crank driven vertical drive elbow bar servo press was designed. The working characteristics of two different transmission mechanisms are analyzed by ADAMS software. The kinematics equation of variable speed movement characteristic of slider is established by vector method, and the sensitivity of each dimension variable of transmission mechanism is analyzed by ADAMS to reduce the design variable. Then genetic algorithm is used to optimize the transmission mechanism in order to reduce the maximum velocity of the slider and the maximum acceleration of the slider and the height of the mechanism. The research results show that the working performance of the optimized crank vertical drive elbows mechanism is greatly improved. The maximum velocity 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 and the height of the mechanism is reduced by 1. At the same time, the mechanism has good pressure keeping performance and quick return characteristic.
【作者單位】： 華中科技大學(xué)材料科學(xué)與工程學(xué)院;
【基金】：湖北省先進(jìn)成形技術(shù)及裝備工程技術(shù)研究中心項(xiàng)目
【分類號(hào)】：TG305

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