数控机床的英文论文(求一篇有关数控加工的英文论文一起中文翻译2000字左右

1.求一篇有关数控加工的英文论文一起中文翻译（2000字左右）,急

数控加工的特点

数控加工，也称之为NC(N帅ericalConb01)加工，是以数值与符号构成的信息，控制机

床实现自动运转。数控加工经历了半个世纪的发展已成为应用于当代各个制造领域的先进制

造技术。数控加工的最大特征有二点：一是可以极大地提高精度，包括加工质量精度及加工

时间误差精度；二是加工质量的重复性，可以稳定加工质量，保持加工零件质量的一致。也

就是说加工零件的质量及加工时间是由数控程序决定而不是由机床操作人员决定的。数控加

工具有如下优点：

1）提高生产效率；

(2)不需要熟练的机床操作人员；

(3)提高加工精度并且保持加工质量

(4)可以减少工装卡具：

(5)容易进行加工过程管理；

(6)可以减少检查工作量；

(7)可以降低废、次品率；

(8)便于设计加工变更，加工设定柔性强

(9)容易实现操作过程的自动化，一人可以操作多台机床；

(10)操作容易，极大减轻体力劳动强度。

随着制造设备的数控化率不断提高，数控加工技术在我国得到日益广泛的使用，在模

具行业，掌握数控技术与否及加工过程中数控化率的高低已成为企业是否具有竞争力的象

征。数控加工技术应用的关键在于计算机辅助设计和制造（CAD/CAM）系统的质量。

CAD/CAM已成为促进国民经济发展的关键技术，是实现制造技术现代化的必由之路。

如何进行数控加工程序的编制是影响数控加工效率及质量的关键，传统的手工编程方

法复杂、烦琐，易于出错，难于检查，难以充分发挥数控机床的功能。在模具加工中，经常

遇到形状复杂的零件，其形状用自由曲面来描述，采用手工编程方法基本上无法编制数控加

工程序。近年来，由于计算机技术的迅速发展，计算机的图形处理功能有了很大增强，基于

CAD/CAM技术进行图形交互的自动编程方法日趋成熟，

2.求一篇数控车床方面的文章（要有英文翻译的）

CNC lathe by function can be further divided into economic type CNC lathes, CNC lathes and turning ordinary machining center (1) Economical CNC Lathe: The stepper motor and the microcontroller on the turning lathe to the system transformed into a simple form CNC lathe. Lower cost, automation and functionality than the poor, turning precision is not high, suitable for less demanding rotational parts turning. Economical CNC Lathe (2) General CNC lathes: turning requirements according to the structure of a specially designed, equipped with universal CNC lathe formed. CNC strong functions, automation and processing accuracy is relatively high, for general turning for rotational parts. This lathe can control two axes, namely x-axis and z axis. General CNC lathe (3) Turning Center: CNC lathes in general, based on an increase of C-axis and the power head, also with a more advanced machine tool library, can control the X, Z and C 3 axis, linkage control axis can be (X, Z), (X, C) or (Z, C). The addition of the C-axis and milling power head, CNC lathe processing function of this greatly enhanced, in addition to a general turning, but also can be radial and axial milling, surface milling, turning parts center line is not in the center hole and the diameter to the hole drilling and other processing. 2. Hydraulic chuck, hydraulic tailstock hydraulic chuck is CNC Turning when the workpiece important accessories, the average rotational parts can be used a hydraulic chuck; of the components were not gripping parts of cylindrical parts, you need to with special chuck; with bar must be used to direct processing of parts spring chuck. Size of the axial and radial size of the ratio of the larger parts, we need a rack installed in the hydraulic end of the living to support the top end of the parts in order to ensure the correct parts for processing. Tailstock has a hydraulic and programmable hydraulic tailstock Tailstock. 3. CNC turret lathe turret lathe can be equipped with two types: (1) special turret lathe manufacturers themselves by the development of the tool holder is used exclusively. This knife has the advantage of lower manufacturing costs, but the lack of versatility. (2) General turret according to certain universal standards (such as VDI, the German Engineers) and the production of the tool holder, CNC lathe CNC lathe according to manufacturer's 数控车床主要用来对旋转体零件进行车削、镗削、钻削、铰削、攻丝等工序的加工。

一般能自动完成内外圆柱面、圆锥面、球面、圆柱螺纹、槽及端面等工序的切削加工。 现代数控车床都具有X、Z两轴的联动功能、刀具位置和刀尖圆弧半径的补偿功能、以及加工固定循环功能。

数控车床的结构 1.数控车床简介 数控车床的组成：数控系统、床身、主轴、进给系统、回转刀架、操作面板和辅助系统等。 数控车床分为立式数控车床和卧式数控车床两种类型。

立式数控车床用于回转直径较大的盘类零件车削加工。 卧式数控车床用于轴向尺寸较长或小型盘类零件的车削加工。

卧式数控车床按功能可进一步分为经济型数控车床、普通数控车床和车削加工中心 （1）经济型数控车床：采用步进电动机和单片机对普通车床的车削进给系统进行改造后形成的简易型数控车床。成本较低，自动化程度和功能都比较差，车削加工精度也不高，适用于要求不高的回转类零件的车削加工。

经济型数控车床 （2）普通数控车床：根据车削加工要求在结构上进行专门设计，配备通用数控系统而形成的数控车床。数控系统功能强，自动化程度和加工精度也比较高，适用于一般回转类零件的车削加工。

这种数控车床可同时控制两个坐标轴，即x轴和z轴。 普通数控车床 （3）车削加工中心：在普通数控车床的基础上，增加了C轴和动力头，更高级的机床还带有刀库，可控制X、Z和C三个坐标轴，联动控制轴可以是（X、Z）、（X、C）或（Z、C）。

由于增加了C轴和铣削动力头，这种数控车床的加工功能大大增强，除可以进行一般车削外，还可以进行径向和轴向铣削、曲面铣削、中心线不在零件回转中心的孔和径向孔的钻削等加工。 2.液压卡盘和液压尾架 液压卡盘是数控车削加工时夹紧工件的重要附件，对一般回转类零件可采用普通液压卡盘；对零件被夹持部位不是圆柱形的零件，则需要采用专用卡盘；用棒料直接加工零件时需要采用弹簧卡盘。

对轴向尺寸和径向尺寸的比值较大的零件，需要采用安装在液压尾架上的活顶尖对零件尾端进行支撑，才能保证对零件进行正确的加工。尾架有普通液压尾架和可编程液压尾架。

3.数控车床的刀架 数控车床可以配备两种刀架： （1）专用刀架 由车床生产厂商自己开发，所使用的刀柄也是专用的。这种刀架的优点是制造成本低，但缺乏通用性。

（2）通用刀架 根据一定的通用标准（如VDI，德国工程师协会）而生产的刀架，数控车床生产厂商可以根据数控车床的功能要求进行选择配置。

3.数控的英语文章

Dear Sir or Madam: I gladly recommend my student Mr. Yi to you for his application to your graduate school program. Mr. Yi enrolled in my courses of "Digital Control System" and "Optimization Theory" during his senior year. In the former, he got a good score of 86/100 and ranked within top 5% of the class. In the latter which was opened for graduate students, he was one of the only three undergraduates who took this course. Throught the period of instruction, I found him an inquistive and attentive person. He always concentrated on my lectures and absorb knowledge profoundly. Although some of the assignments were somewhat difficult to the average students, he could solved them completely and correctly owing to his logical and analytical thinking and the clear conception to the theory.He also impressed me in the final project developing a program to resolve the free variable optimal problem. He thought deeply and did it skillfully, so the program could work very well even for the special cases (like cycling。

) but still economically and easy to read. So I gave him the good score and was better than many graduate students. Besides, He also took a cluster of courses in Control and Systems Theory in his junior and senior years and always got good scores.Upon my observation, Mr. Yi has been fully prepared to undertake a Master in your institute in the control and system fields. I am confident that with the ingenious learning ability and diligent attitude that he has shown in the courses, he will be able to perform outstandingly even in a highly vigorous program. I have no hesitation in recommending him and hope that you will consider his application favorably.。

4.急需

CNC machining process

The book is based on "higher vocational institutions professional personnel training objectives and the basic specifications," the request. The contents of a total of 8 book chapters, including Introduction, NC Turning tools, CNC machine tool fixtures, CNC machining technology, CNC turning process, CNC milling technology, processing technology machining center, CNC wire cutting technology content.

The book based on novel, the contents of easy-to-digest, step-by-step illustrated examples of the rich, with a focus on applications; theory highlights concise and systematic, practical and advanced.

This book could serve as a higher vocational and technical institutions, secondary specialized, professional digital TV, such as teaching materials and reference books can also be used as CNC machining enterprise vocational skills training in information and guidance, while for other readers interested in CNC Technology reference.

5.找一篇“数控机床加工工艺”方面的英文文章,单词数3000左右

CNC machining process

The book is based on "higher vocational institutions professional personnel training objectives and the basic specifications," the request. The contents of a total of 8 book chapters, including Introduction, NC Turning tools, CNC machine tool fixtures, CNC machining technology, CNC turning process, CNC milling technology, processing technology machining center, CNC wire cutting technology content.

The book based on novel, the contents of easy-to-digest, step-by-step illustrated examples of the rich, with a focus on applications; theory highlights concise and systematic, practical and advanced.

This book could serve as a higher vocational and technical institutions, secondary specialized, professional digital TV, such as teaching materials and reference books can also be used as CNC machining enterprise vocational skills training in information and guidance, while for other readers interested in CNC Technology reference.

6.急

MACHINE STATE - ONE CLAMP CLOSE FAST At this point the ejects if forward are retracted. Oil is diverted through a series of ports to the clamp cylinder on a toggle, to the traverse cylinders on direct hydraulic machines with outriggers or to the “jack ram” on hydraulic clamps without outriggers. The volume and pressure are ramped up to prevent a jerk as the moving platen and mold moves forward. This is either done by delaying the high volume pump from coming in for a short period of time to allow the mass to start to move or to ramp up a proportional directional valve to meter the oil to the clamp slowly at first increasing the flow until is at the preset rate. The clamp moves forward at this rate until the clamp forward slow down limit is actuated。

7.求机械或者数控英文论文

机械的资料 .sg/books?hl=en&id=LmAV8q_OOOgC&dq=Mechanics&printsec=frontcover&source=web&ots=cG5UPfTZht&sig=----------------------- 华文版本 passes the movement of all matter in the universe under the four fundamental interactions (or forces): gravity, the strong and weak interactions, and the electromagnetic interaction.Mechanics also constitutes a central part of technology, the application of physical knowledge for humanly defined purposes. In this connection, the discipline is often known as engineering or applied mechanics. In this sense, mechanics is used to design and analyze the behavior of structures, mechanisms, and machines. Important aspects of the fields of mechanical engineering, aerospace engineering, civil engineering, structural engineering, materials engineering, biomedical engineering and biomechanics were spawned from the study of mechanics.Classical versus quantum The major division of the mechanics discipline separates classical mechanics from quantum mechanics.Historically, classical mechanics came first, while quantum mechanics is a comparatively recent invention. Classical mechanics originated with Isaac Newton's Laws of motion in Principia Mathematica, while quantum mechanics didn't appear until 1900. Both are commonly held to constitute the most certain knowledge that exists about physical nature. Classical mechanics has especially often been viewed as a model for other so-called exact sciences. Essential in this respect is the relentless use of mathematics in theories, as well as the decisive role played by experiment in generating and testing them.Quantum mechanics is of a wider scope, as it encompasses classical mechanics as a sub-discipline which applies under certain restricted circumstances. According to the correspondence principle, there is no contradiction or conflict between the two subjects, each simply pertains to specific situations. Quantum mechanics has superseded classical mechanics at foundational level and is indispensable for the explanation and prediction of processes at molecular and (sub)atomic level. However, for macroscopical processes classical mechanics is able to solve problems which are unmanageably difficult in quantum mechanics and hence remains useful and well used.Einsteinian versus Newtonian Analogous to the quantum versus classical reformation, Einstein's general and special theories of relativity have expanded the scope of mechanics beyond the mechanics of Newton and Galileo, and made small corrections to them. Relativistic corrections were also needed for quantum mechanics, although relativity is categorized as a classical theory.There are no contradictions or conflicts between the two, so long as the specific circumstances are carefully kept in mind. Just as one could, in the loosest possible sense, characterize classical mechanics as dealing with "large" bodies (such as engine parts), and quantum mechanics with "small" ones (such as particles), it could be said that relativistic mechanics deals with "fast" bodies, and non-relativistic mechanics with "slow" ones. However, "fast" and "slow" are subjective concepts, depending on the state of motion of the observer. This means that all mechanics, whether classical or quantum, potentially needs to be described relativistically. On the other hand, as an observer, one may frequently arrange the situation in such a way that this is not really required.Types of mechanical bodies Thus the often-used term body needs to stand for a wide assortment of objects, including particles, projectiles, spacecraft, stars, parts of machinery, parts of solids, parts of fluids (gases and liquids), etc.Other distinctions between the various sub-disciplines of mechanics, concern the nature of the bodies being described. Particles are bodies with little (known) internal structure, treated as 。

8.求一篇数控机床主传动系统的英文文献

Ordinary lathe main transmission system design specificationA: design, the design of a plain lathe main transmission system, complete transmission series for 8-12.Second, the design purpose:1: through the design practice, master machine main transmission system design method.2: cultivate comprehensive use of mechanical drawing, mechanical design, structure and process related knowledge of engineering design.3: training manual, atlas, relevant material and design standards.4: improving technology and prepare technical document.5: is the graduation design teaching implementation of technical preparation.Third, the design content and the basic requirements:Design content:(a) movement design(1) transmission scheme design (concentration), separate transmission(2) rotational speed range(3) than: archduke ratio, and mixing ratio and dukedoms than male(4) to determine the structure and structured: (1) : former vice driving less dense than before and after after dredging, (2) solution: a speeding level increases, b: using variable transmission mechanism and branch(5) rendering speed diagram (1) : former slow velocity rush (2) after the former acc: after the rushSanjiaodai (6) : sure. The variable pinion gear group(7) draw transmission system(2) power design(1) the transmission shaft, and the calculation speed: each gear(2) trunnion shaft(3) gear module(4) : spindle, trunnion (before), after the diameter size in front, before a roughers.tousegravity-flotation (stretched quantity: 100-120), support form, reasonable span of supports L(3) structure design(4) check a gear (minimum), check spindle (ocsm), torque,Basic requirements:1: according to the requirement of design project, reasonable size, sports and determine relevant parameters.2: correct use structured, speed diagram design tools, serious scheme analysis.3: the correct use manual, standard, design patterns must conform to the state standards. Say to the book with engineering terms, the words written neatly, smooth succinct.4:1 - main transmission system to control electrical tools principle chart 1.Four, design parameters:The biggest diameter serial processing spindle speed series (r/min) drive motor power and synchronous speed1 1000,710,500,355,250,180 400mm125,90 4.5 kw, 1500r/min,2 1000,500,355,250,180 400mm125,90,45, 4kw 1500r/min,3 320mm 2000,1420,1000,710,500,360250,180,125,90,63,42, 4kw 1500r/min,4 320mm 2000,1000,710,500,360,250180,125,90,63,45,22, 1500r/min 3kw,5 320mm 2000,1260,1000,800,630,5004kw 1500r/min, 400,320,250,200,160,1006 320mm 2000,1250,800,630,500,400,320250,200,160,100,63, 1500r/min 3kw,The second group of parameter selection (as design data),Five, the motion parameters design(1) transmission scheme design (choice) transmission(2) rotational speed range(3) choose than mixing(4) to determine the structure and structured:(5) rendering speed: shown below(6) determine the pinion gear speed groupThe calculation of the first expand group pinion gearThe first group of expanding ratio, respectively:Therefore the minimum number of gear ratio for querying, take, and is,2 basically the group is respectively: ratio,Therefore the minimum number of gear ratio for querying, there is,3 the second expansion ratio of group,Therefore the gear combinations, at least in the table, and there,(7) transmission chart is as follows:Six, the dynamic parameter design(1) the calculation speed transmissionThe axis of rotation axis calculation, the calculation, for 125r/min speed.Each axis calculation speed is as follows:1 2 3 serial electric shaftComputing speed (r/min) 14401000 500 177 125The minimum gear turns as follows: the computationAxis number and minimum gear combinations, 1 (22) 2 (22) 3 (20) (50),Computing speed (r/min) 1000 500 180 125(2) the output power of the shafts(3) of the shaft torqueN.m (m)N.m (m)N.m (m)N.m (m)Seven, the design and selection of trunnion keysA: the shaft, and take into the formula:Have, however, roundChoose the spline:Axis, and take into two: formula:Have, however, roundChoose the spline:Axis, and take into three: formula:。

9.找一篇数控机床方面的外文资料

主要技术参数： 加工范围 Capacity 床身上最大回旋直径Max.swing dyameter overbed 地板上最大回旋直径Max.swing over carryage 最大工件长度Max.turning length 床身宽度width of bedways mm mm mm mm φ400 φ200 650 360 主轴 Spindle 主轴端部型式Spindle nose 主轴通孔直径Spindle bore 主轴孔锥度Taper hole of spindle 主轴转速Spindle speed mm r/min C6 φ52 MT6 无级变速（Step,ess speed change） 进给 Feeds 拖板快速移动速度X/Z Fastest speed of training piate X/Z 重复定位精度Repeat positioning precision m/min mm 3/5 z:0.013*:0.012 刀架 Travel 刀具数量Number of ststions 换刀时间indexing time sec 4(6) 1.0 尾座 Tailstock 尾座套简锥度Taper of tailstock sleeve 尾座套简直径Dia.of tailstock sleeve 尾座套简行程Travel tailstock sleeve mm mm MT5 φ75 120 主电机Main motor power Kw 4 机床重量Net weyght 机床外形尺寸（长*宽*高）Mcachine dimension(L*B*H) Kg mm 1350 2300 x 1100 x 1560 数控系统（用户选用） 华中/广数/西门子/法那科 Type of CNCcontrller(Selected by user) Huazhong/GSK /SINVMERIK/oi Mate-TB 补偿方式 刀具及反向间隙自动补偿 Compensation form Auto compensation of cuttingtools and the recerse gap。