本文選題：五軸數(shù)控工具磨床設(shè)計(jì) + 虛擬樣機(jī)��； 參考：《西南交通大學(xué)》2017年碩士論文

【摘要】：隨著工業(yè)的不斷發(fā)展,現(xiàn)代機(jī)械制造業(yè)對(duì)零件產(chǎn)品的要求越來(lái)越苛刻,對(duì)加工刀具的性能也提出了更高的挑戰(zhàn)�，F(xiàn)代數(shù)控刀具的加工難點(diǎn)主要體現(xiàn)在超硬材料的磨削以及先進(jìn)型面的擬合,這對(duì)刃磨刀具的數(shù)控工具磨床提出了較高的水平要求。其中五軸數(shù)控工具磨床的發(fā)展水平作為國(guó)家工業(yè)競(jìng)爭(zhēng)力的重要基石,成為了先進(jìn)工具磨床的研究熱點(diǎn)之一。本文在這一背景下基于某廠商的加工需求,結(jié)合虛擬樣機(jī)技術(shù)完成了某型第一代五軸數(shù)控工具磨床機(jī)械結(jié)構(gòu)的設(shè)計(jì),并針對(duì)數(shù)字化的磨床虛擬樣機(jī)進(jìn)行靜、動(dòng)態(tài)性能的試驗(yàn)分析,依據(jù)分析結(jié)果完成了設(shè)計(jì)方案的優(yōu)化以及評(píng)價(jià)工作。其中虛擬樣機(jī)技術(shù)的使用極大地縮短了磨床研發(fā)的周期,為該型五軸數(shù)控工具磨床的試驗(yàn)樣機(jī)制造提供了理論基礎(chǔ)與數(shù)據(jù)支持。本文主要研究?jī)?nèi)容如下:(1)基于模塊化的設(shè)計(jì)思想,研究了五軸數(shù)控工具磨床功能模塊的創(chuàng)建工作,明確磨床機(jī)械結(jié)構(gòu)的設(shè)計(jì)目錄和要求,也為該型磨床后期的系列化產(chǎn)品提供理論基礎(chǔ)。(2)依照五軸數(shù)控工具磨床的模塊劃分結(jié)果,研究了該型磨床結(jié)構(gòu)模塊下各非標(biāo)準(zhǔn)件的設(shè)計(jì)以及標(biāo)準(zhǔn)件的計(jì)算、選型與校核工作;同時(shí)基于SolidWorks三維造型平臺(tái),探討并完成了磨床的零部件建模和整機(jī)的虛擬裝配過(guò)程。(3)基于虛擬樣機(jī)技術(shù),在有限元軟件的幫助下,研究了磨床各關(guān)鍵結(jié)構(gòu)部件的靜態(tài)特性與自由振動(dòng)下的動(dòng)態(tài)響應(yīng),校核設(shè)計(jì)方案的合理性,為優(yōu)化設(shè)計(jì)提供方向依據(jù)與指導(dǎo)。(4)重點(diǎn)研究了磨床立柱的優(yōu)化設(shè)計(jì)方法,在虛擬樣機(jī)的實(shí)驗(yàn)環(huán)境下,通過(guò)組合實(shí)驗(yàn)、統(tǒng)計(jì)分析以及響應(yīng)面擬合,得到了磨床立柱各優(yōu)化目標(biāo)函數(shù)對(duì)主要設(shè)計(jì)參數(shù)的響應(yīng)規(guī)律,并基于遺傳算法尋找到各設(shè)計(jì)參數(shù)組合的最優(yōu)解。(5)研究了磨床磨削系統(tǒng)裝配體的受迫振動(dòng)響應(yīng)特性,通過(guò)諧響應(yīng)分析得到了所關(guān)注的工況點(diǎn)在一定激勵(lì)頻率范圍內(nèi)振動(dòng)幅值的響應(yīng)曲線,預(yù)測(cè)了低階的共振頻率段,驗(yàn)證了設(shè)計(jì)方案的合理性。
[Abstract]:With the continuous development of industry, the requirements of modern mechanical manufacturing for parts are becoming more and more stringent, and the performance of machining tools is facing a higher challenge.The machining difficulties of modern NC tools are mainly reflected in the grinding of superhard materials and the fitting of advanced surfaces, which puts forward a higher level requirement for NC tool grinders with cutting tools.The development level of five-axis CNC tool grinder, as an important cornerstone of national industrial competitiveness, has become one of the research hotspots of advanced tool grinder.In this background, based on the machining requirements of a certain manufacturer, the mechanical structure of the first generation of 5-axis CNC tool grinder is designed with the virtual prototyping technology, and the virtual prototype of the digital grinder is static.According to the analysis results, the optimization and evaluation of the design scheme are completed.The use of virtual prototyping technology greatly shortens the research and development period of grinding machine and provides the theoretical basis and data support for the manufacture of the experimental prototype of this type of five-axis CNC tool grinder.The main contents of this paper are as follows: (1) based on the modular design idea, the establishment of functional modules of five-axis CNC tool grinder is studied, and the design catalogue and requirements of grinding machine structure are defined.It also provides a theoretical basis for the series of products in the later stage of the grinding machine.) according to the result of module partition of the five-axis CNC tool grinder, the design of the non-standard parts and the calculation, selection and checking of the standard parts under the structural module of the grinding machine are studied.At the same time, based on SolidWorks 3D modeling platform, the part modeling of grinding machine and the virtual assembly process of the whole machine are discussed and completed. (3) based on virtual prototyping technology, with the help of finite element software,The static characteristics and dynamic response of the key structural components of the grinder under free vibration are studied, the rationality of the design scheme is checked, and the optimum design method of the grinding machine column is studied, which provides the direction and guidance for the optimum design.In the virtual prototype experimental environment, through combination experiment, statistical analysis and response surface fitting, the response law of each optimized objective function of grinding machine column to the main design parameters is obtained.Based on genetic algorithm (GA), the forced vibration response of the assembly of grinding system is studied.By means of harmonic response analysis, the response curves of vibration amplitude in a certain range of excitation frequency are obtained, and the low order resonance frequency section is predicted, which verifies the rationality of the design scheme.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TG596

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 洪學(xué)武;趙堅(jiān);高志鵬;賀藝龍;徐慶振;毛日;;基于ANSYS的數(shù)控十字滑臺(tái)裝配體的模態(tài)分析[J];機(jī)械工程師;2016年08期

2 張秀蘭;;開(kāi)啟中國(guó)“智”造新紀(jì)元——CIMT2015磨床展品評(píng)述[J];世界制造技術(shù)與裝備市場(chǎng);2015年03期

3 楊洪波;趙恒華;劉偉銳;;磨削技術(shù)的現(xiàn)狀和未來(lái)發(fā)展趨勢(shì)[J];機(jī)械制造與自動(dòng)化;2014年06期

4 邵欽作;;關(guān)注五軸數(shù)控工具磨[J];世界制造技術(shù)與裝備市場(chǎng);2014年06期

5 李凌祥;;五軸聯(lián)動(dòng)數(shù)控工具磨床的研發(fā)[J];金屬加工(冷加工);2014年20期

6 張秀蘭;;從CCMT2014看數(shù)控磨床的發(fā)展[J];世界制造技術(shù)與裝備市場(chǎng);2014年02期

7 盧玉成;;CIMT 2013數(shù)控工具磨床展品評(píng)述[J];世界制造技術(shù)與裝備市場(chǎng);2013年05期

8 張祥雷;姚斌;姚博世;譚曉慶;賀文輝;;五軸工具磨床床身的結(jié)構(gòu)分析與輕量化研究[J];制造技術(shù)與機(jī)床;2013年05期

9 胡江林;;孔加工刀具及數(shù)控工具磨床發(fā)展現(xiàn)狀與趨勢(shì)[J];裝備機(jī)械;2012年01期

10 羅輝;陳蔚芳;葉文華;;機(jī)床立柱靈敏度分析及多目標(biāo)優(yōu)化設(shè)計(jì)[J];機(jī)械科學(xué)與技術(shù);2009年04期

，

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