發(fā)布時(shí)間：2018-07-12 18:15

  本文選題：六桿機(jī)構(gòu) + Dyad機(jī)構(gòu)�。� 參考：《延邊大學(xué)》2011年碩士論文

【摘要】：機(jī)構(gòu)是力和運(yùn)動(dòng)的傳遞和生成的機(jī)械裝置,現(xiàn)在以多種形態(tài)大量應(yīng)用于生產(chǎn)現(xiàn)場。本文所研究的六桿機(jī)構(gòu)是為了使四桿機(jī)構(gòu)可以在平面上做最短路徑的往復(fù)運(yùn)動(dòng),在四桿機(jī)構(gòu)驅(qū)動(dòng)桿上設(shè)計(jì)Dyad (Crank-rocker機(jī)構(gòu))的裝置。這種六桿機(jī)構(gòu)以多種設(shè)計(jì)形式廣泛應(yīng)用于生產(chǎn)現(xiàn)場。隨著自動(dòng)化產(chǎn)業(yè)的發(fā)展,運(yùn)用電動(dòng)馬達(dá)和機(jī)構(gòu)來完成生產(chǎn)現(xiàn)場裝配已經(jīng)成為一個(gè)重要的研究方向。 本文對經(jīng)過預(yù)定三位置的六桿機(jī)構(gòu)設(shè)計(jì)方法及六桿機(jī)構(gòu)轉(zhuǎn)動(dòng)時(shí)出現(xiàn)的幾點(diǎn)問題(順序問題、轉(zhuǎn)移問題)的解決方法進(jìn)行了研究,基于以上的研究結(jié)果,設(shè)計(jì)研發(fā)了經(jīng)過預(yù)定三位置的四、六桿機(jī)構(gòu)設(shè)計(jì)模擬軟件(windows用)。主要研究內(nèi)容如下： 首先,對基于三位置的四桿機(jī)構(gòu)進(jìn)行了綜合分析,并進(jìn)行了相關(guān)研究：(1)已知被驅(qū)動(dòng)桿上轉(zhuǎn)動(dòng)點(diǎn)位置坐標(biāo)時(shí),計(jì)算固定點(diǎn)的位置坐標(biāo)；(2)已知被驅(qū)動(dòng)桿上固定點(diǎn)位置坐標(biāo)時(shí),計(jì)算轉(zhuǎn)動(dòng)點(diǎn)的位置坐標(biāo)；(3)通過數(shù)學(xué)公式推導(dǎo),計(jì)算出Pole和image pole位置的坐標(biāo)；(4)在轉(zhuǎn)動(dòng)點(diǎn)運(yùn)動(dòng)區(qū)域,通過菲萊蒙結(jié)構(gòu),計(jì)算出被驅(qū)動(dòng)桿轉(zhuǎn)動(dòng)點(diǎn)不可以選擇的區(qū)域,從而解決轉(zhuǎn)移問題；(5)在固定點(diǎn)運(yùn)動(dòng)區(qū)域,通過菲萊蒙結(jié)構(gòu),計(jì)算出被驅(qū)動(dòng)桿固定點(diǎn)不可以選擇的區(qū)域,從而解決轉(zhuǎn)移問題；(6)通過數(shù)學(xué)公式推導(dǎo),計(jì)算出轉(zhuǎn)動(dòng)點(diǎn)作直線運(yùn)動(dòng)的條件。 其次,對Dyad機(jī)構(gòu)(Crank-rocker機(jī)構(gòu))進(jìn)行了綜合分析。(1)在被驅(qū)動(dòng)桿上連接Dyad機(jī)構(gòu),使四桿機(jī)構(gòu)可以在平面上做最短路徑的往復(fù)運(yùn)動(dòng),這就要求Dyad機(jī)構(gòu)必須保證曲柄的存在。本文運(yùn)用著名的格拉斯霍夫準(zhǔn)則(Grashof type)計(jì)算出Dyad機(jī)構(gòu)的曲柄存在的條件；(2)設(shè)計(jì)Dyad機(jī)構(gòu)時(shí),轉(zhuǎn)移問題的解決方法。 最后,以C++、MFC、OpenGL為編輯語言,設(shè)計(jì)研發(fā)經(jīng)過預(yù)定三位置的四、六桿機(jī)構(gòu)設(shè)計(jì)模擬軟件,實(shí)現(xiàn)圖形建模、參數(shù)設(shè)定、可視化仿真。
[Abstract]:The mechanism is a mechanical device for the transmission and generation of force and motion, and is now widely used in production sites in a variety of forms. In this paper, the six-bar mechanism is designed to make the four-bar mechanism perform the reciprocating motion of the shortest path on the plane, and the device of Dyad (Crank-rocker mechanism) is designed on the driving rod of the four-bar mechanism. This six-bar mechanism is widely used in production site with various design forms. With the development of automation industry, it has become an important research direction to use electric motor and mechanism to complete production site assembly. In this paper, the design method of six-bar mechanism with predetermined three positions and the solutions of several problems (order problem, transfer problem) that appear when the six-bar mechanism rotates are studied. Based on the above research results, Design and development of four and six bar mechanism design simulation software (windows) after a predetermined three position. The main research contents are as follows: firstly, the four-bar mechanism based on three positions is synthetically analyzed, and related studies are carried out: (1) when the position coordinates of the rotation point on the driven rod are known, the position coordinates of the fixed points are calculated; (2) when the position coordinates of fixed points on the driven rod are known, the position coordinates of rotation points are calculated; (3) the coordinates of Pole and image pole positions are derived by mathematical formula; (4) the coordinates of pole and image pole positions are calculated through the Filemon structure in the moving region of the point of rotation. In order to solve the problem of transfer, the region that can not be selected by driving rod rotation point can be calculated by Filemon structure, and the problem of transfer can be solved by calculating the region that can not be selected by driving rod rotation point. (5) in the moving region of fixed point, the region that can not be selected by driving rod fixed point can be calculated by Filemon structure. (6) by deducing the mathematical formula, the conditions for the rotation point to move in a straight line are calculated. Secondly, the comprehensive analysis of Dyad mechanism (Crank-rocker mechanism) is carried out. (1) connecting Dyad mechanism on the driven rod, the four-bar mechanism can make the reciprocating motion of the shortest path on the plane, which requires the existence of crank in Dyad mechanism. In this paper, the existence conditions of the crank of Dyad mechanism are calculated by using the famous Grashof type criterion. (2) the solution of the transfer problem in the design of the Dyad mechanism. Finally, using C / MFCU OpenGL as editing language, the software of design simulation of four-and-six-bar mechanism is designed and developed, which can realize graphic modeling, parameter setting and visual simulation.
【學(xué)位授予單位】：延邊大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2011
【分類號】：TH112.1

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