高效硬質(zhì)合金轉(zhuǎn)子成形銑刀的優(yōu)化設(shè)計(jì)及其制造技術(shù)
本文關(guān)鍵詞:高效硬質(zhì)合金轉(zhuǎn)子成形銑刀的優(yōu)化設(shè)計(jì)及其制造技術(shù) 出處:《陜西理工學(xué)院》2015年碩士論文 論文類型:學(xué)位論文
更多相關(guān)文章: 成形銑刀 螺桿轉(zhuǎn)子 可轉(zhuǎn)位刀片 優(yōu)化設(shè)計(jì)
【摘要】:目前,多數(shù)生產(chǎn)雙螺桿壓縮機(jī)的企業(yè)都采用成形銑刀對(duì)螺桿轉(zhuǎn)子的螺旋槽進(jìn)行銑削加工,這大大地提高了螺桿轉(zhuǎn)子的加工效率與加工質(zhì)量。但是,專用性太強(qiáng)的銑刀很難在加工零件發(fā)生變化時(shí)被及時(shí)地改造成相應(yīng)的形狀。因此,有必要提出一種通用性較強(qiáng)的高效的銑刀設(shè)計(jì)方法。本論文主要工作如下:1.首先對(duì)可轉(zhuǎn)位成形銑刀的發(fā)展背景、趨勢(shì)進(jìn)行了簡(jiǎn)介和分析。然后,在研究圓柱螺旋曲面的成形原理以及螺旋槽成形刀具設(shè)計(jì)理論的基礎(chǔ)上,以螺桿轉(zhuǎn)子端截形為基礎(chǔ),建立了由工件端面型線到轉(zhuǎn)子銑刀理論廓形的數(shù)學(xué)計(jì)算模型,使用MATLAB軟件編程計(jì)算出銑刀理論廓形、規(guī)劃了刀片槽基準(zhǔn)坐標(biāo)等數(shù)據(jù),結(jié)合刀體的結(jié)構(gòu)設(shè)計(jì),實(shí)現(xiàn)了銑刀的三維建模。2.在已知銑刀廓形的情況下,對(duì)銑刀的設(shè)計(jì)提出了三方面的優(yōu)化方法,并應(yīng)用這些優(yōu)化方法建立了銑刀模型;接著,對(duì)可轉(zhuǎn)位刀片和前后兩種方法所設(shè)計(jì)的銑刀進(jìn)行了有限元分析,校核了刀片的強(qiáng)度并對(duì)兩種銑刀刀體的分析云圖進(jìn)行了對(duì)比,驗(yàn)證了文中提出的優(yōu)化設(shè)計(jì)方法具有可行性。3.對(duì)兩種銑刀設(shè)計(jì)方法進(jìn)行綜合應(yīng)用,針對(duì)性地設(shè)計(jì)出了某特定型號(hào)的陰、陽(yáng)轉(zhuǎn)子銑刀,并對(duì)銑刀開展了實(shí)際工況下的加工試驗(yàn),對(duì)試驗(yàn)數(shù)據(jù)進(jìn)行記錄、分析,得到了銑刀加工合格轉(zhuǎn)子的最優(yōu)銑削深度范圍,為后期銑刀以及轉(zhuǎn)子的設(shè)計(jì)、加工提供可參考的資料。
[Abstract]:At present, most enterprises that produce twin-screw compressor use forming milling cutter to milling screw rotor spiral groove, which greatly improves the processing efficiency and quality of screw rotor. The milling cutter with too strong specificity is difficult to be transformed into the corresponding shape in time when the machining parts change. It is necessary to put forward a general and efficient design method of milling cutter. The main work of this paper is as follows: 1. Firstly, the development background and trend of indexable forming milling cutter are introduced and analyzed. On the basis of studying the forming principle of cylindrical helical curved surface and the design theory of helical groove forming tool, the end section of screw rotor is taken as the foundation. The mathematical calculation model from the end profile of the workpiece to the theoretical profile of the rotor milling cutter is established. The theoretical profile of the milling cutter is calculated by using MATLAB software, and the datum coordinates of the blade groove are planned. Combined with the structural design of the cutter, the 3D modeling of the milling cutter is realized. 2. When the profile of the milling cutter is known, three optimization methods are proposed for the design of the milling cutter, and the milling cutter model is established by using these optimization methods. Then, the finite element analysis of the indexable blade and the milling cutter designed by the two methods is carried out, the strength of the blade is checked and the analysis cloud diagram of the two kinds of milling cutter body is compared. The feasibility of the optimization design method proposed in this paper is verified. 3. Two milling cutter design methods are comprehensively applied to design a specific type of negative and positive rotor milling cutter. And the milling cutter under the actual working conditions of the processing test, to record the test data, analysis, the milling cutter processing qualified rotor optimal milling depth range, for the late milling cutter and rotor design. Processing provides reference materials.
【學(xué)位授予單位】:陜西理工學(xué)院
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:TG714
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