完整版)數(shù)控機(jī)床外文翻譯畢業(yè)論文

1、外文翻譯學(xué)校：江漢大學(xué)文理學(xué)院學(xué)部：機(jī)械與建筑工程系部：機(jī)械制造及其自動化 5 班姓名：梅中豪指導(dǎo)老師：李列1 This study aims at developing a machine center consisting of is based on an open L-shaped granite base, where a Z-axis platform is mounted on the top of an L-type base, while X and Y-axis platforms are assembled by stacking. Additionally, a fue

2、l tank, WEDG winding mechanism and a work piece control. Equipped with a commercially available PC-Based CNC controller, any processing path and precision motion control can be achieved. In addition, the Z-axis platform includes a commercially available rapid adapter for the rapid assembly ofC-axis

3、rotation, quickly switch between micro-EDM,100 卩 m.Combined with a self-developed trigger circuit, it also completed a three-dimensional touch trigger probe. The measurement software was developed with Borland C+ Builder.Integrating the three-dimensional touch trigger probe with the three-axis linea

4、r scale, the three-dimensional coordinates of the measured values were calculated and processed. It successfully applied to the measurement of point, line, circle and angle.本研究旨在開發(fā)一個加工中心組成的高速微型銑床，微細(xì)電火花加工、三 坐標(biāo)測量機(jī)。加工中心采用 CNC空制器和微細(xì)電火花加工電源的商用PC結(jié)構(gòu)設(shè)計(jì)是基于一個開放的L形的花崗巖基座，在Z軸平臺安裝在L 型底座的頂部，而X和Y軸平臺是由堆疊。此外，一個燃料箱，電

5、極卷 繞機(jī)構(gòu)、工件夾持固定到軸工作平臺。三軸定位階段采用伺服電機(jī)驅(qū)動的 絲杠運(yùn)動控制。配備了一個數(shù)控控制器商用PC任何加工路徑和精密運(yùn)動控制可以實(shí)現(xiàn)。此外，Z軸平臺包括c軸旋轉(zhuǎn)快速組裝使用市售的快速 接頭，高速微銑削主軸和三維測量探頭。這意味著，機(jī)器可以快速在微細(xì) 電火花開關(guān)，高速微銑削和三維測量。加工中心的成功產(chǎn)生微探針與一個 直徑小于100卩M.結(jié)合自行研制的觸發(fā)電路前端的球體，它還完成了三維 觸發(fā)式探頭。用 Borland C+ Builder 開發(fā)了測量軟件。三維觸發(fā)式測 頭的三軸線性尺度積分，計(jì)算和處理的三維坐標(biāo)的測量值。它已成功地應(yīng) 用于測量的點(diǎn)，線，圓，角2 Different

6、types of geometric models of face-gear with circle line of teeth shown in the paper. Generation of a new geometrical of a face-gear is performed on CNC milling machine. The basic direction of the development geometrical of a facegear and technology is in the search of new trends and methods focused

7、on improving the quality of products, shortening theproduction cycles, their mechanizations, automation and implementation of a technology.與齒圈的面齒輪幾何模型的不同類型的已被證明的文件。一種新的面齒輪 幾何的產(chǎn)生是在數(shù)控銑床上進(jìn)行。的發(fā)展，幾何面齒輪技術(shù)的基本方向是 新的趨勢和方法集中在提高產(chǎn)品質(zhì)量的搜索，縮短生產(chǎn)周期，其機(jī)械化， 是一種高精度自動化技術(shù)與實(shí)現(xiàn)。3 This paper discuss of the literature review o

8、f Optimization of tool life in milling using Design of experiment implemented to model the end milling process that are using solid carbide flat end mill as the cutting tool and stainless steels s.s-304 as material due to predict the resulting of Tool life. Data is collected from CNC milling machine

9、s were run by 8 samples of experiments using DOE approach that generate table design in MINITAB packages. The inputs of the model consist of feed, cutting speed and depth of cut while the output from the model is Tool life calculated by taylors life equation. The modelis validated through a comparis

10、on of the experimental values with their predicted counterparts. The optimization of the tool life is studied to compare the relationship of the parameters involve.本文討論的刀具壽命優(yōu)化的文獻(xiàn)回顧，采用實(shí)驗(yàn)的實(shí)施模型的端銑加工過 程中所使用的硬質(zhì)合金端銑刀的切削工具鋼和不銹鋼 s.s-304 由于預(yù)測 得到的刀具材料的設(shè)計(jì)加工。數(shù)據(jù)收集從數(shù)控銑床是由8的使用DOE方法生成表的設(shè)計(jì)在 Minitab 包實(shí)驗(yàn)。該模型的輸入包括進(jìn)料，切割

11、速度和切割深度，從模型的輸出是刀具壽命方程計(jì)算泰勒的生活。通過與實(shí)驗(yàn)值的預(yù)測進(jìn)行比較，驗(yàn)證了模型的正確性。刀具壽命的優(yōu)化進(jìn)行了研究比 較的參數(shù)的關(guān)系涉及。4 In this work an effective simulator for a CNC milling machine is presented. It developed in EMC2, a free Opens Source NC software running in Linux environment, developed by an international community. It can be installed

12、on a common PC and is able to: control a CNC machine; read part programs; display the tool path; send instructions to the CNC machine for the cutting process. In this work a new feature implemented, which can both display a 3D model of the machine and simulate all the motions of the movable parts of

13、 a real 3 axis end milling machine. This simulator lets the users not only verify the toolpath but also detect any possible collision by using the very computer which controls the milling machine. This system is very efficient and easy to use as powerful tool in Engineering education.在這項(xiàng)工作中，對數(shù)控銑床的一種

14、有效的模擬器。它已經(jīng)開發(fā)在EMC，2免費(fèi)開放源在 Linux 環(huán)境下運(yùn)行的數(shù)控軟件，由一個國際社區(qū)發(fā)展。它 可以安裝在普通的PC機(jī)，能夠控制數(shù)控機(jī)床；閱讀部分顯示程序；刀具 路徑；發(fā)送指令到數(shù)控機(jī)床的切削過程。在這項(xiàng)工作中一個新的功能已經(jīng) 實(shí)現(xiàn)，既可以顯示本機(jī)的三維模型和模擬的可動部件的一個真正的 3 軸 端銑機(jī)所有的運(yùn)動。該模擬器可以讓用戶不僅驗(yàn)證刀具軌跡也檢測任何可能的碰撞通過控制銑床的計(jì)算機(jī)。該系統(tǒng)是非常有效的和易于使用的工程 教育的有力工具。5 In this study, we the basis of analysis about the characteristics of MI

15、LLPLUS IT V530 CNumerical control system, special post processor applied to five-axis CNC machining mode based on IMSPost was developed. Special post processing program developed was proved its accuracy and reliability by put it into practice. The research results the development of machine tool pro

16、totypes by de los andes was studied, and based on the results obtained, a new prototype was proposed. the motivation behind the design and construction of this machine tool was to achieve in the machining process compared with conventional turning produced in macro machine tools. a machine, with spi

17、ndle rotation speed up to 300 000 rpm was achieved, the cutting tool moves in two axes through step motors connected to worm gear reductions, thus resolution of 1卩 m is achieved. theinterpolator was programmed based on dda integration. the machine was set under a stereoscope to visualize the machini

18、ng operations with zoom up to 30x. micromachining was reached adopting nc control and it was possible to characterize microturned cortical bone samples.本文對數(shù)控車床的微觀概念的發(fā)展，繼續(xù)通過 latemm 在機(jī)床樣機(jī)的開發(fā)研究。結(jié)果的基礎(chǔ)上，提出了一種新的原型。在該機(jī)床的設(shè)計(jì)和建設(shè)的動機(jī)是為了達(dá)到更高的精度，在加工過程中，與傳統(tǒng)的車削機(jī)床生產(chǎn)的宏觀比較。一種機(jī)器，與主軸轉(zhuǎn)速高達(dá) 300 轉(zhuǎn)了 000，刀具移動二個軸通過步 進(jìn)電機(jī)連接，蝸輪蝸桿

19、的減少，從而達(dá)到1卩米分辨率?；贒DA插補(bǔ)是整合程序。本機(jī)設(shè)置一個立體鏡和放大到30倍的可視化的加工操作。加工達(dá)到采用NC控制，它是可能的表征微變的皮質(zhì)骨樣品7 In this study, we propose the accelerationdeceleration control algorithm based on trapezoid-curve jerk in CNC machining. In aviation and mould and die industry, it is much significant to achieve complex profile parts.

20、The unsmooth AccelerationDeceleration (ab. AccDec) control in feed movement is one of the main reasons to bring about machine tools impact and vibration in practical machining. After analyzing the CNC machine tools dynamic model, an AccDec control algorithm based on trapezoid-curve jerk is put forwa

21、rd in order to avoid step change in jerk curve in the study; Moreover, the motion profile smooth control approach based on continuous jerk is developed in details to decrease machine tools impact according to various kinematics constraint conditions, such as the maximum acceleration, the maximum jer

22、k, the machining program segment displacement, the instruction feedrate and so on; Finally, the developed AccDec approach and the traditional linear AccDec approach are compared in the CNC experimental table. The results reveal that the developed approach can achieve more smooth and flexible motion

23、profile, which is carbide (SiC) ceramics is developed in this paper. The process employs a turntable with several uniformly-distributed cylindrical copperelectrodes and abrasive sticks as the tool, and uses a waterbased emulsion as the machining fluid. End electrical discharge milling and mechanical

24、 grinding alternately and are mutually beneficial, so the process is able to effectively machine a large surface area on SiC ceramic with a good surface quality. The machining principle and characteristics of the technique are introduced. The effects of polarity, pulse duration, pulse interval, open

25、-circuit voltage, discharge current, diamond grit size, emulsion concentration, emulsion flux, milling depth and tool stick number on performance parameters such as the material removal rate, tool wear ratio, and surface roughness investigated. In addition, the microstructure of the machined surface

26、 under different machining conditions is examined with a scanning electron microscope and an energy dispersive spectrometer. The SiC ceramic was mainly removed by end ED milling during the initial rough machining mode, whereas it is mainly removed by mechanical grinding during the later finer machin

27、ing mode; moreover, the tool material can transfer to the workpiece surface during the compound process.將端電火花復(fù)合工藝（ED銑削與機(jī)械磨削加工碳化硅（SiC）陶瓷進(jìn) 行。該方法使用一個轉(zhuǎn)盤與幾個均勻分布的圓柱形銅電極和研磨棒為工 具，采用水基乳液作為加工液。端電火花銑削與機(jī)械磨削交替出現(xiàn)的現(xiàn) 象，是互惠互利的，所以這個過程是能夠有效地機(jī)大面積的 SiC 陶瓷具 有良好的表面質(zhì)量。介紹了加工技術(shù)的原理和特點(diǎn)。極性，脈沖持續(xù)時 間，脈沖間隔的影響，開路電壓，放電電流，金剛石磨粒的大小，乳化液

28、 的濃度，乳化液流量，銑削深度和工具桿數(shù)對性能參數(shù)如材料去除率，刀具的磨損率，和表面粗糙度進(jìn)行了研究。此外，不同的加工條件下加工表 面微觀結(jié)構(gòu)用掃描電子顯微鏡和能量色散譜儀研究。 SiC 陶瓷的電火花銑 削初始粗加工模式中的主要去除，而這主要是去除機(jī)械研磨后精細(xì)加工模 式期間；此外，刀具材料可以轉(zhuǎn)移到工件表面的復(fù)合過程。9 Purpose: The work presented in this paper might be used for basic data in the design of a lot extruded aluminum products using the variab

29、le section extrusion process.Designmethodologyapproach: The capacity of a CNC extruder was calculated and decided as analyzing the FEM results performed by commercial software DEFORM-2D. CNC extruder and die set for variable section extrusion was invented by field extrusion experts.Findings: CNC ext

30、ruder variable extrusion process. Furthermore there was few die sets with mold feeding parts for aluminum extrusion. To be capable of extruding aluminum products with variable cross section are CNC extruder and the die set.Research limitationsimplications: For future research of developed CNC extrud

31、er, frame structures of the extruder would be analyzed and designed using FE analysis. In addition CNC extruder would be operated by the control program for variable section as a PC version.Practical implications: Aluminum parts with variable section would increase as utilizing the CNC extruder and

32、cost price of the parts be down. Many industrial products using the variable section extrusion process would be used in diversefields.Originalityvalue: Extruded aluminum part with variablesection is rarely used since extruders dont be designed anddeveloped for variable section extrusion. It is impor

33、tant that an extruder with CNC control, which could be easily of industrial products with variable section for today. Therefore design and development of CNC extruder this paper as efficient approach using commercial FEM code.目的：在本文中提出的工作可能被用于在大量的設(shè)計(jì)基礎(chǔ)數(shù)據(jù)的鋁擠壓產(chǎn) 品采用變截面擠壓 process.designmethodologyapproac

34、h ：計(jì)算并確定為 分析商業(yè)軟件DEF0RM-2有限元結(jié)果進(jìn)行了數(shù)控機(jī)的能力。數(shù)控?cái)D出機(jī) 和模具的擠壓型材擠壓場變量專家發(fā)明的。結(jié)果：數(shù)控機(jī)在擠壓過程中的 關(guān)鍵變量。此外還有鋁擠壓模具零件數(shù)模料?？蓴D壓鋁制品變截面是數(shù)控 擠出機(jī)和模具。研究限制影響：對未來的研究開發(fā)的數(shù)控?cái)D出機(jī)，擠出機(jī) 的結(jié)構(gòu)進(jìn)行分析，利用有限元分析設(shè)計(jì)。此外，數(shù)控機(jī)將由變截面控制程 序操作的PC版本。實(shí)踐意義：變截面鋁件將利用零件的數(shù)控機(jī)和成本價 格的下降增加。許多工業(yè)產(chǎn)品采用變截面擠壓過程會被用在不同的 fields.originalityvalue ：擠壓鋁部分變截面不從擠出機(jī)的設(shè)計(jì)和開發(fā) 用于變截面擠壓很少使用。隨著數(shù)

35、控控制擠出機(jī)是很重要的，它可以很容 易地處理和訪問軟件是由用戶操作領(lǐng)域，發(fā)明。如上所述，數(shù)控機(jī)所需的 工業(yè)產(chǎn)品生產(chǎn)今天變截面。因此，數(shù)控機(jī)具有模具模零件的設(shè)計(jì)和發(fā)展是 解決本文采用商業(yè)有限元代碼的有效方法。10 Micro-milling experiments of HPb63-3 lead brass were conducted on micro-machine by using TiAlN coated tungsten carbide microdiameter cutter.Wear and breakage morphologies of micro-tool were anal

36、yzed.Wear and breakage of micro-diameter cutter mainly occurred in tool nose and the wear and breakage morphologies shown distinct size effect.The main failure modes of micro-tool were coating peeling and tool nose breakage.Adhesive and abrasive wear were typical damage mechanisms of micro-tool.Diffusing eff