【摘要】：弧面分度凸輪機(jī)構(gòu)是現(xiàn)代制造業(yè)和機(jī)械傳動(dòng)機(jī)構(gòu)的重要功能部件。通過改進(jìn)傳統(tǒng)弧面分度凸輪機(jī)構(gòu)的凸輪滾道設(shè)計(jì)和分度盤的設(shè)計(jì),并加入滾珠作為第三方組件,從而到達(dá)“以滾代滑”的傳動(dòng)結(jié)構(gòu)�；∶娣侄韧馆啓C(jī)構(gòu)在機(jī)械設(shè)計(jì)及加工制造方面已經(jīng)取得了很大的成就,但是單純靠改變凸輪的輪廓曲線、滾子的形狀以及分度盤形狀等機(jī)構(gòu)機(jī)械部分不能從根本上解決傳動(dòng)中存在的精度問題,因此,本文通過考慮機(jī)電的因素,利用ADAMS和MATLAB軟件聯(lián)合仿真,通過不同的控制方式,實(shí)現(xiàn)弧面分度凸輪機(jī)電耦合的仿真研究。本文的主要研究內(nèi)容如下： 1、參照了滾珠絲杠滾道截形的設(shè)計(jì),提出了雙圓弧凸輪滾道截形的結(jié)構(gòu)設(shè)計(jì),同時(shí)對分度盤進(jìn)行了結(jié)構(gòu)的改進(jìn),再加入滾珠作為第三方傳動(dòng)部件后,實(shí)現(xiàn)了弧面分度凸輪“以滾代滑”的傳動(dòng)結(jié)構(gòu)。運(yùn)用PRO/E和MATLAB軟件對凸輪進(jìn)行了三維的構(gòu)造,并分析了影響機(jī)構(gòu)壓力角的主要因素,提出了改進(jìn)方法。 2、在不考慮機(jī)電影響的因素下,應(yīng)用ADAMS軟件對滾珠型弧面分度凸輪機(jī)構(gòu)進(jìn)行了運(yùn)動(dòng)仿真,得到了輸出的角加速度、速度等仿真結(jié)果,為后續(xù)的仿真結(jié)果做了初步的分析。 3、在考慮機(jī)電影響的因素下,利用ADAMS軟件得到了滾珠型弧面分度凸輪機(jī)構(gòu)的被控模塊,通過分析永磁同步電動(dòng)機(jī)的矢量控制,并建立了其數(shù)學(xué)模型,利用MATLAB/SIMULINK軟件建立了永磁同步電動(dòng)機(jī)的控制系統(tǒng),最后把滾珠型弧面分度凸輪機(jī)構(gòu)的被控模塊和控制系統(tǒng)結(jié)合起來,實(shí)現(xiàn)了聯(lián)合仿真。在PI控制器和模糊PI器下分別進(jìn)行了仿真,通過不同的算法仿真與前面的仿真結(jié)果比較,得出在模糊PI控制器控制下,其動(dòng)態(tài)性能更好。 4、對滾珠型弧面分度凸輪機(jī)構(gòu)實(shí)物進(jìn)行試驗(yàn)研究。先介紹了機(jī)構(gòu)的各個(gè)參數(shù),并得到了參數(shù)值。然后對機(jī)構(gòu)進(jìn)行了運(yùn)動(dòng)實(shí)驗(yàn)研究,得到了輸出軸上的角加速度運(yùn)動(dòng)曲線,為之前的仿真結(jié)果提供了有效的試驗(yàn)數(shù)據(jù),并驗(yàn)證了仿真的正確性。 通過以上的研究,實(shí)現(xiàn)了滾珠型弧面分度凸輪機(jī)構(gòu)的設(shè)計(jì)及機(jī)電耦合運(yùn)動(dòng)分析,為后續(xù)滾珠型弧面分度凸輪機(jī)構(gòu)結(jié)構(gòu)優(yōu)化和設(shè)計(jì)奠定了理論基礎(chǔ)。
[Abstract]:Globoidal indexing cam mechanism is an important functional part of modern manufacturing and mechanical transmission mechanism. By improving the design of the cam raceway of the traditional globoidal indexing cam mechanism and the design of the indexing plate, and adding the ball as the third party component, the transmission structure of "rolling instead of sliding" is achieved. The globoidal indexing cam mechanism has made great achievements in mechanical design and manufacturing, but simply by changing the profile of the cam, The shape of roller and the shape of indexing plate can not fundamentally solve the problem of precision in transmission. Therefore, by considering the factors of electromechanical, the paper uses ADAMS and MATLAB software to simulate, through different control methods. Simulation study on the electromechanical coupling of globoidal indexing cam. The main contents of this paper are as follows: 1. Referring to the design of ball screw raceway section, the structure design of double arc cam raceway section is put forward, and the structure of indexing plate is improved. After adding ball as the third party transmission component, the globoidal indexing cam transmission structure of "rolling instead of sliding" is realized. Using PRO/E and MATLAB software, the three-dimensional construction of cam is carried out, and the main factors influencing the pressure angle of mechanism are analyzed, and the improvement method is put forward. 2. Without considering the influence of electromechanical factors, the kinematic simulation of ball globoidal indexing cam mechanism is carried out by using ADAMS software, and the simulation results of angular acceleration and velocity are obtained. The preliminary analysis is made for the subsequent simulation results. 3. The controlled module of ball globoidal indexing cam mechanism is obtained by using ADAMS software, and the vector control of permanent magnet synchronous motor (PMSM) is analyzed, and its mathematical model is established. The control system of permanent magnet synchronous motor (PMSM) is established by using MATLAB/SIMULINK software. Finally, the controlled module and control system of ball globoidal indexing cam mechanism are combined to realize the joint simulation. The simulation is carried out under the PI controller and the fuzzy PI controller respectively. By comparing the simulation results of different algorithms with the previous simulation results, it is concluded that the dynamic performance of the controller is better under the control of the fuzzy PI controller. 4. Experimental research on ball-type globoidal indexing cam mechanism is carried out. Each parameter of the mechanism is introduced, and the parameter value is obtained. Then the kinematic experiment of the mechanism is carried out, and the angular acceleration motion curve on the output shaft is obtained, which provides effective experimental data for the previous simulation results, and verifies the correctness of the simulation. Through the above research, the design of the ball globoidal indexing cam mechanism and the analysis of its electromechanical coupling motion are realized, which lays a theoretical foundation for the structure optimization and design of the ball globoidal indexing cam mechanism.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH112.2

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本文編號：2407245