本文選題：陶粒增強砌塊　切入點：雙軸切割機床　出處：《浙江工業(yè)大學》2015年碩士論文　論文類型：學位論文

【摘要】：隨著國家基礎建設的不斷增加,砌塊有著廣闊的需求量,而陶粒增強砌塊是一種現(xiàn)階段較為新型的自保溫材料的墻體砌塊。目前,國內(nèi)對于砌塊生產(chǎn)裝備提出了不同的要求,主要集中在提高生產(chǎn)效率和降低生產(chǎn)成本問題上。而在砌塊生產(chǎn)線中,砌塊的切割是重要的工藝部分,所以對于陶粒增強砌塊的切割機床的設計與研究將有利于砌塊生產(chǎn)水平的提高與國家切割機床的發(fā)展。本課題是基于陶粒增強砌塊的加工生產(chǎn)線設計為背景,開發(fā)了陶粒增強砌塊的雙軸切割機床。根據(jù)企業(yè)傳統(tǒng)切割機床存在的問題,設計出了新型的切割機床,以滿足工業(yè)要求。在完成三維設計后,對鋸片切割過程中的力學模型進行了分析,并通過靜動態(tài)分析驗證了設計的正確性,通過對立柱和鋸軸的優(yōu)化來求得最佳設計變量值。主要研究內(nèi)容如下:(1)根據(jù)陶粒增強砌塊的生產(chǎn)加工的特點,確定切割機床的總體功能要求,研究出機床的各功能模塊之間的關系,以此設計出符合要求的機床結(jié)構(gòu)方案,并完成其三維模型。(2)在研究金剛石鋸片的鋸切過程中,通過工件表面的變化情況來探究鋸切機理,將鋸切過程中的所受到的力分為切向鋸切力和法向鋸切力,根據(jù)力的分布特點選擇鋸切方式。通過對鋸片的受力分析,建立了鋸切弧區(qū)的數(shù)學模型,并將多個鋸片所受到的鋸切力進行耦合。通過對切割弧區(qū)中實際鋸切弧長與弧區(qū)角的關系分析,建立鋸齒與切割深度的關系式,進而對單個金剛石受力情況建立了力學模型。(3)根據(jù)鋸切過程中的力學模型,分析機床中各個關鍵部分的載荷分布情況,并建立相應的有限元模型,對各關鍵部分進行靜力分析。并對各自分析結(jié)果進行相應的方案改進,以提高其性能。對機床進行動態(tài)分析,研究機床的固有頻率和振型,驗證其工作的穩(wěn)定性。(4)根據(jù)機床重要部件的分析結(jié)果,選擇鋸軸和立柱進行優(yōu)化設計。選擇適當?shù)脑O計變量、約束條件和目標函數(shù)對鋸軸和立柱進行最優(yōu)化設計。本文通過功能要求分析設計出雙軸切割機床,對重要部件進行研究與分析,并對關鍵部分進行了結(jié)構(gòu)優(yōu)化設計,為切割機床設計與優(yōu)化提供了理論依據(jù)。
[Abstract]:With the increasing of national infrastructure, there is a broad demand for masonry, and ceramsite reinforced block is a relatively new type of self-insulating material wall block at this stage. At present, different requirements have been put forward for the production equipment of block in our country. The main focus is on improving production efficiency and reducing production cost. In block production line, block cutting is an important part of the process. Therefore, the design and research of cutting machine tools for ceramsite reinforced block will be beneficial to the improvement of block production level and the development of national cutting machine tools. Based on the problems of traditional cutting machine tools, a new type of cutting machine tool is designed to meet the requirements of industry. The mechanical model in the cutting process of saw blade is analyzed, and the correctness of the design is verified by static and dynamic analysis. The optimum design variable value is obtained by optimizing the column and saw shaft. The main research contents are as follows: (1) according to the characteristics of the production and processing of the ceramsite reinforced block, the overall functional requirements of the cutting machine tool are determined. The relationship between various functional modules of the machine tool is studied, and the structure scheme of the machine tool that meets the requirements is designed, and its 3D model. 2) in the process of studying the cutting process of diamond saw blade, the mechanism of sawing mechanism is probed through the change of the workpiece surface. The forces in the sawing process are divided into tangential sawing forces and normal sawing forces. According to the distribution characteristics of the forces, the sawing modes are selected. The mathematical model of the sawing arc region is established by analyzing the forces on the saw blades. Through the analysis of the relationship between the actual cutting arc length and the angle of the cutting zone, the relationship between the sawtooth and the cutting depth is established. Then the mechanical model of single diamond is established. (3) according to the mechanical model in sawing process, the load distribution of every key part of machine tool is analyzed, and the corresponding finite element model is established. In order to improve the performance of the machine tool, the dynamic analysis of the machine tool is carried out, and the natural frequency and mode of the machine tool are studied. Verify the stability of its work.) according to the analysis results of the important parts of the machine tool, select the saw shaft and column to carry on the optimization design. Select the appropriate design variable, The constraint conditions and objective functions are used to optimize the design of saw shafts and columns. In this paper, two axis cutting machine tools are designed through functional requirement analysis, and the important parts are studied and analyzed, and the key parts are optimized for structure design. It provides a theoretical basis for the design and optimization of cutting machine tools.
【學位授予單位】：浙江工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TU522.05

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