本文選題：沖壓生產(chǎn)線 + 虛擬樣機(jī)技術(shù)　； 參考：《廣東工業(yè)大學(xué)》2015年碩士論文

【摘要】：虛擬樣機(jī)技術(shù)作為一種新技術(shù),在制造領(lǐng)域的地位越來越重要,也在我國取得了一定的成就。虛擬樣機(jī)結(jié)合計算機(jī)技術(shù),能夠提前發(fā)現(xiàn)產(chǎn)品設(shè)計誤差,也能完成人無法完成的某些試驗。這種技術(shù)符合現(xiàn)代提倡的綠色制造概念,也能在很大程度上為企業(yè)節(jié)省資金,縮短開發(fā)周期。本文主要結(jié)合模態(tài)分析基礎(chǔ)理論、有限元分析理論、虛擬樣機(jī)理論基礎(chǔ)、機(jī)器人D-H建模理論和機(jī)器人運動學(xué)分析理論實現(xiàn)沖壓生產(chǎn)線的優(yōu)化。具體研究內(nèi)容如下：(1)利用有限元分析軟件ANSYS來研究沖壓自動化生產(chǎn)線的零部件的結(jié)構(gòu)特性。將曲柄轉(zhuǎn)角0°～180°范圍內(nèi)每隔10°取一組數(shù)據(jù)進(jìn)行研究,總共18組數(shù)據(jù)。通過壓機(jī)機(jī)身的靜力學(xué)分析可知機(jī)身的強(qiáng)度符合工程要求。通過壓機(jī)機(jī)身的模態(tài)分析得到壓機(jī)機(jī)身在轉(zhuǎn)軸轉(zhuǎn)動一周內(nèi)的固有頻率曲線和陣型,結(jié)果顯示從第10階開始壓機(jī)機(jī)身的固有頻率曲線顯現(xiàn)一定的規(guī)律性,且隨著階數(shù)的增加相鄰階數(shù)間的頻率差值越來越小。因此,1～10階固有頻率對壓機(jī)機(jī)身的振動特性影響較大,在工作狀態(tài)下應(yīng)該避免1～10階的頻率范圍,防止共振產(chǎn)生大的危害。(2)為了提高沖壓生產(chǎn)線的生產(chǎn)節(jié)拍提出一種較好的壓機(jī)與機(jī)器人運動協(xié)同新方法,該方法結(jié)合模態(tài)分析的結(jié)果和壓機(jī)與機(jī)器人的運動動作有效的減少機(jī)器人的等待時間。而且為了評定該方法下得出的不同方案的優(yōu)劣性,提出了三種運動協(xié)同方案評價指標(biāo)。(3)為了建立完整的沖壓生產(chǎn)線虛擬樣機(jī)系統(tǒng),憑借Pro/E完成沖壓生產(chǎn)線壓機(jī)和機(jī)器人的三維造型、虛擬裝配和靜態(tài)干涉檢查,通過ADAMS軟件完成沖壓生產(chǎn)線的虛擬建模及動態(tài)干涉檢查,利用傳感器和測量工具完成沖壓生產(chǎn)線上的雙料檢測系統(tǒng)、機(jī)器人工作空間控制系統(tǒng)和抓料重量控制系統(tǒng)等的虛擬仿真工作,真實的模擬沖壓生產(chǎn)線正常工作下的基本組成功能。(4)為了優(yōu)化沖壓生產(chǎn)線,利用運動協(xié)同新方法來規(guī)劃軌跡,憑借ADAMS軟件完成機(jī)器人軌跡正解和逆解。通過ADAMS和MATLAB聯(lián)合仿真功能補(bǔ)償軌跡誤差,實時跟蹤和反饋軌跡誤差,將誤差控制在最小0.001范圍內(nèi)。本課題對沖壓生產(chǎn)線的虛擬樣機(jī)技術(shù)研究還處于初級階段,不夠完善,但是實現(xiàn)了虛擬樣機(jī)設(shè)計、生產(chǎn)線協(xié)同、故障緊急急停模擬、生產(chǎn)線軌跡規(guī)劃等多項技術(shù)集成創(chuàng)新。而且本課題結(jié)合四種不同類型的軟件進(jìn)行數(shù)據(jù)交換,結(jié)合多種學(xué)科理論基礎(chǔ)進(jìn)行并行研究,各種問題進(jìn)行多角度考慮,是新穎的研究手段。
[Abstract]:As a new technology, virtual prototyping technology is becoming more and more important in the manufacturing field, and it has made some achievements in our country. The virtual prototype combined with computer technology can find the product design error in advance, and can also complete some experiments that people can't accomplish. This technology conforms to the modern concept of green manufacturing, which is also very large. This paper mainly combines the basic theory of modal analysis, the finite element analysis theory, the virtual prototype theory basis, the robot D-H modeling theory and the robot kinematics analysis theory to optimize the stamping production line. The specific research content is as follows: (1) using the finite element analysis software ANSYS to study The structural characteristics of parts of the stamping automation production line are studied. A group of data is taken every 10 degrees within the range of the crank angle of 0 to 180 degrees, and a total of 18 sets of data are studied. Through the static analysis of the press body, the strength of the fuselage is conformed to the engineering requirements. The body of the press body is analyzed by the modal analysis of the press body to get the rotating shaft in a week. The natural frequency curve and formation show that the natural frequency curves of the press body from the tenth order show certain regularity, and with the increase of the order, the frequency difference between the adjacent orders becomes smaller and smaller. Therefore, the 1~10 order natural frequency has a great influence on the vibration characteristics of the press body, and the frequency of the 1~10 order should be avoided in the working state. (2) in order to improve the production line of the stamping production line, a better new method is proposed, which combines the results of modal analysis and the motion of the press and the robot to reduce the waiting time of the robot effectively. In order to build a complete virtual prototyping system for stamping production line, (3) to complete the three-dimensional modeling of press and robot, virtual assembly and static interference check, and complete the virtual modeling and dynamic interference of the stamping production line through ADAMS soft parts in order to establish a complete virtual prototype system of the stamping production line by Pro/E. Inspection, using the sensors and measuring tools to complete the virtual simulation work of the double material detection system on the stamping production line, the robot working space control system and the grab weight control system, and the real simulation of the basic components and functions of the stamping production line. (4) in order to optimize the stamping production line, a new method of motion coordination is used. By using the ADAMS software to complete the positive and inverse solution of the trajectory of the robot, the trajectory error is compensated by the joint simulation function of ADAMS and MATLAB, and the error of the trajectory is tracked and feedback in real time, and the error is controlled in the minimum 0.001 range. Virtual prototype design, production line coordination, fault emergency stop simulation, production line trajectory planning, and many other technological integration innovations. Moreover, this topic is combined with four different types of software for data exchange, combined with the theoretical basis of various disciplines to carry out parallel research, various problems are considered in multiple angles, and it is a new research means.
【學(xué)位授予單位】：廣東工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TG385.9

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