本文選題：激光切割機(jī)　切入點(diǎn)：有限元分析　出處：《濟(jì)南大學(xué)》2017年碩士論文

【摘要】：激光切割機(jī)作為一種高效切割設(shè)備,在工業(yè)領(lǐng)域內(nèi)應(yīng)用越來越廣泛,隨著激光切割機(jī)在切割市場(chǎng)中的占有率不斷攀升,越來越多的新型產(chǎn)品不斷出現(xiàn)并投入市場(chǎng),國內(nèi)外對(duì)于激光切割機(jī)的研究重點(diǎn),多集中在激光器及機(jī)電控制系統(tǒng)方面,對(duì)于激光切割機(jī)結(jié)構(gòu)的穩(wěn)定性、可靠性的研究相對(duì)較少。本文的研究對(duì)象為3015M型光纖激光切割機(jī),是山東鐳鳴數(shù)控激光裝備有限公司自主研發(fā)的一款板管一體式光纖激光切割機(jī)。本文通過使用有限元分析軟件ANSYSWorkbench,對(duì)3015M型光纖激光切割機(jī)進(jìn)行了動(dòng)靜態(tài)研究,并綜合生產(chǎn)實(shí)際與理論分析,對(duì)部分結(jié)構(gòu)進(jìn)行了設(shè)計(jì)及優(yōu)化。本文的研究工作主要為以下幾個(gè)方面:(1)介紹3015M型光纖激光切割機(jī)主要技術(shù)參數(shù),并依據(jù)此型設(shè)備運(yùn)行速度的設(shè)計(jì)指標(biāo),選定適用的伺服電機(jī);根據(jù)廠家提出的優(yōu)化要求,分析了此型設(shè)備的五種工作狀況;使用Solidworks建立此型設(shè)備的三維結(jié)構(gòu)模型,并在保留結(jié)構(gòu)特點(diǎn)的同時(shí)進(jìn)行簡(jiǎn)化;將三維模型導(dǎo)入Workbench內(nèi),對(duì)各部件施加邊界約束條件,并進(jìn)行網(wǎng)格劃分,建立其有限元模型。(2)使用Workbench內(nèi)剛體運(yùn)動(dòng)分析模塊,對(duì)3015M型光纖激光切割機(jī)進(jìn)行運(yùn)動(dòng)仿真,分析結(jié)構(gòu)的受力情況;對(duì)整機(jī)及Z軸組件、橫梁組件進(jìn)行靜力分析,依據(jù)實(shí)際問題與分析結(jié)論,對(duì)橫梁組件進(jìn)行改進(jìn)。(3)設(shè)計(jì)了一款鑄造橫梁;依據(jù)響應(yīng)面優(yōu)化法,以保證鑄造橫梁結(jié)構(gòu)強(qiáng)度的前提下,減輕重量為目標(biāo),對(duì)鑄造橫梁進(jìn)行了優(yōu)化分析,選定了鑄造橫梁的設(shè)計(jì)參數(shù),并對(duì)優(yōu)化后鑄造橫梁進(jìn)行了靜力分析檢驗(yàn),選定了一款伺服電機(jī)。(4)對(duì)此型設(shè)備進(jìn)行了動(dòng)力學(xué)有限元分析,使用瞬態(tài)分析模塊,建立Z軸組件的剛?cè)狁詈夏Ｐ?分析了兩種工況下激光頭的振動(dòng)問題,對(duì)Z軸組件進(jìn)行了改進(jìn)設(shè)計(jì),并將改進(jìn)方案應(yīng)用到實(shí)際生產(chǎn)中。本文研究成果對(duì)實(shí)際設(shè)計(jì)、生產(chǎn)提供了有效參考,部分改進(jìn)方案已經(jīng)實(shí)際應(yīng)用,并取得了良好效果,具有一定的理論指導(dǎo)和生產(chǎn)應(yīng)用的意義。
[Abstract]:As a kind of efficient cutting equipment, laser cutting machine is more and more widely used in the industrial field. With the increasing share of laser cutting machine in the cutting market, more and more new products appear and put into the market.The research emphasis of laser cutting machine at home and abroad is mainly focused on laser and electromechanical control system, but the research on the stability and reliability of laser cutting machine structure is relatively few.The research object of this paper is 3015M optical fiber laser cutting machine, which is a kind of plate tube integrated optical fiber laser cutting machine developed by Shandong Radium numerical Control Laser equipment Co., Ltd.In this paper, the dynamic and static analysis of 3015M optical fiber laser cutting machine is carried out by using ANSYS Workbench, and some structures are designed and optimized by synthesizing the practical and theoretical analysis.This paper mainly introduces the main technical parameters of the 3015M fiber laser cutting machine, and selects the suitable servo motor according to the design index of the speed of this type of equipment, and according to the optimized requirements of the manufacturer, the main research work of this paper is as follows: (1) introduction of the following aspects: 1) introduction of the main technical parameters of the 3015M optical fiber laser cutting machine.This paper analyzes the five working conditions of this kind of equipment, establishes the three-dimensional structure model of this type of equipment by using Solidworks, and simplifies it while retaining the structural characteristics, introduces the three-dimensional model into Workbench, and imposes boundary constraint conditions on each component.The finite element model is established. (2) using the rigid body motion analysis module in Workbench, the motion simulation of 3015M fiber laser cutting machine is carried out to analyze the force situation of the structure, and the static analysis of the whole machine, Z-axis assembly and beam assembly is carried out.According to the practical problems and analysis conclusions, a cast beam is designed based on the improvement of the beam assembly, and the aim is to reduce the weight of the cast beam under the premise of ensuring the structural strength of the cast beam, according to the response surface optimization method.The optimization analysis of cast crossbeam is carried out, the design parameters of cast crossbeam are selected, and the static analysis of cast crossbeam after optimization is carried out, and a servo motor. 4) the dynamic finite element analysis of this type equipment is carried out.Using transient analysis module, the rigid-flexible coupling model of Z-axis assembly is established, and the vibration of laser head under two working conditions is analyzed. The improved design of Z-axis assembly is carried out, and the improved scheme is applied to practical production.The research results in this paper provide an effective reference for practical design and production, and some of the improved schemes have been applied in practice, and have achieved good results, which has a certain theoretical guidance and production application significance.
【學(xué)位授予單位】：濟(jì)南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TG485

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