【正文】 山東科技大學學士學位論文 I 摘 要 隨著科學技術的發(fā)展，機械行業(yè)正在向著高速，高精度，柔性自動化方向發(fā)展。機械壓力機作為鍛冶機械的一個類別，在工業(yè)生產(chǎn)中有著極其廣泛的應用。當壓力機的轉(zhuǎn)速不同，工作環(huán)境不同以及加工的工件形狀和力學特性不同時，它的受力和運動規(guī)律就不相同， 所以，鍛壓機械的運動學和力學性能研究一直是設計過程中的一個難點，也是設計人員必須解決的一個重點問題?；旌向?qū)動多連桿機械式壓力機的運動學和力學特性比傳統(tǒng)的機械式和液壓式壓力機的性能要復雜的多，因此，對其進行運動學和動態(tài)靜力學分析研究對于設計的成功性來說就顯得尤為重要。 本文將混合驅(qū)動九桿機械式壓力機根據(jù)其工作原理轉(zhuǎn)化成二自由度九 桿機構，建立坐標系后利用解析法求出該機構的運動學方程，并運用半角 正切 公式，解出滑塊在任意時刻的位移，速度，加速度表 達式。 選取合適的桿長建立 ADAMS 模型，并 驗證模型的正確性。 然后與傳統(tǒng) 的曲柄壓力機的位移、速度、加速度曲線進行對比分析，得到多連桿壓力機的優(yōu)點，同時通過調(diào)整直流電機和伺服電機的輸入 特性，得到混合驅(qū)動多連桿壓力機的柔性化特性。最后，建立系統(tǒng)的 靜力學方程， 并分析增力比特征。 關鍵詞： 混合驅(qū)動； 九連桿 壓力機 ； ADAMS； 運動學 山東科技大學學士學位論文 II ABSTRACT With the development of science and technology, mechanical industry is towards to high speed, high precision, flexible automation direction. As a category of smith machinery, mechanical press has extremely extensive application in industrial production. The force and the motion of the slider is different when the press is in different speed, different working environment, as well as the processing of the workpiece’s shape and mechanical properties. Therefore, the kinematics and mechanics research performance of the fing machinery has always been a difficulty in the process of design, and also as a key problem for designers . The kinematics and mechanics characteristics of the multilink press with hybriddriven mechanism is much more plex pared with the traditional mechanical press or the hydraulic press, therefore, it is important for the designer to carry on the kinematics and dynamic statics analysis. In this study, we transformed the press into Two degree of freedom of ninebar mechanism according to the working principle of the press, and established a coordinate system using analytic method, worked out the expression of displacement, variety and acceleration of the slider with the half Angle formula. Then, ADAMS model was established by choosing suitable length of the bar, and validate the correctness of the model. Then with the traditional crank press’ displacement, velocity and acceleration curves were analyzed, we got the advantages of ninebar press with hybriddriven mechanism. At the same time , we got the flexible characteristics of the press by adjusting the input characteristics of DC motor and servo motor. Finally, we established a system of statics equations and made an force characteristics analysis of the press. Keywords: hybriddriven。 ninebar press。 ADAMS。 kinematics 山東科技大學學士學位論文 III 目 錄 摘要 ...................................................................................................................... I ABSTRACT ......................................................................................................... II 1 緒論 ................................................................................................................. 1 論文的研究背景 ..................................................................................... 1 多連桿壓力機的概念 ......................................................................... 1 多連桿壓力機的優(yōu)越 性 ..................................................................... 1 混合驅(qū)動多連桿壓力機的研究成果和發(fā)展概況 ................................. 1 國內(nèi)混合驅(qū)動多連桿壓力機的發(fā)展情況 ............................................. 2 國 外混合驅(qū)動多連桿壓力機的發(fā)展情況 ............................................. 2 本課題研究的主要內(nèi)容 ......................................................................... 3 本章小結 ................................................................................................. 4 2 混合驅(qū)動九桿壓力機的運動學模型與分析 ...................................... 5 機構的運動分析 ..................................................................................... 5 機構運動分析的方法 ......................................................................... 5 解析法分析機構運動的求解過程 ....................................................... 5 混合驅(qū)動九桿壓力機運動學模型的建立 ............................................. 6 混合驅(qū) 動九桿機械壓力機機構簡圖 .................................................... 6 混合驅(qū)動九桿壓力機的尺寸和角度 .................................................... 6 混合驅(qū) 動九桿壓力機運動模型的建立 ................................................ 7 混合驅(qū)動九桿壓力機運動方程的求解 ................................................. 9 求解位置方程 .................................................................................. 9 求解速度方程 ................................................................................. 11 求解加速度方程 ..............................................................................12 本章小結 ................................................................................................13 3 ADAM 虛擬樣機仿真與分析 ...................................................................14 虛擬樣機尺寸的確定 ............................................................................14 桿長確定條件 ..................................................................................14 獲得桿長數(shù)據(jù) ..................................................................................15 建立 ADAMS 虛擬樣機 ............................................................................16 啟動 ADAMS .......................................................................................17 設置建模環(huán)境 ..................................................................................17 創(chuàng)建物體（ Part） ...........................................................................18 創(chuàng)建約束副 ......................................................................................20 施加運動速度 ..................................................................................23 進行仿真 .........................................................................................24 輸出測量曲線 ..................................................................................24 驗證 ADAMS 虛擬樣機 ............................................................................26 山東科技大學學士學位論文 IV