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糕点 切片机 设计 理工

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糕点切片机的设计（桂理工）,糕点,切片机,设计,理工

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桂 林 理 工 大 学本科学生毕业设计（论文）任 务 书系( 院 )： 机械与控制工程学院 课题名称： 糕点切片机的设计 专业(方向)： 机械设计制造及其自动化 （模具设计制造） 班 级： 机械11-2班 学生姓名： 李文全 学号： 3110644220 指导教师： 刘电霆 职称： 教授 下发日期： 2015.1.10 桂林理工大学教务处制课题名称糕点切片机设计主要内容(包括设计参数)与要求本次设计的主要内容是一种简易糕点切片机设计，具体内容包括以下5部分：(1) 了解糕点切片原理及要求。(2) 设计糕点切片总体方案。(3) 进行电气部分的计算与选型。(4) 进行机械部分的设计、验算，给出零部件图和装配图。(5) 编写毕业设计（论文）说明书。工 作 进 程 及 工 作 量1、开题论证阶段（含寒假）。（7周：1月19日3月8日）。2分析、研究、设计、实施阶段、论文编写。9周，3月9日5月10日。3教师审阅、学生修改论文：3周，5月11日5月31日。5月11日5月22日：指导教师进行论文电子文档审阅，指导学生修改；5月22日：学生将论文及其它所需要的材料打印装袋交给指导教师；5月25日5月31日：评阅教师评阅毕业设计（论文、提交资料）；4毕业答辩阶段：6月1日6月7日5毕业设计工作总结阶段：2周，6月8日6月21日时间：6月8日6月14日：各答辩小组评定成绩，写评语并上报系答辩委员会；6月15日6月21日：系答辩委员会审核成绩和评语，教师及教研室进行毕业实习材料整理、总结等。注：学生于5月11前必须上交论文初稿的电子文档到指导老师处。应 遵 守 的 法 规1 遵守学校相关规定2 严格按计划（工作进程）进行毕业设计工作。毕业设计(论文)完成日期： 2015 年 5 月 31 日指导教师： (签字)教研室主任： (签字)本科毕业设计(论文)外文翻译（附外文原文） 学 院： 机械与控制工程学院 课题名称： 糕点切片机的设计 专业(方向)： 机械设计制造及自动化 （模具设计制造） 班 级： 机械11-2班 学 生： 李文全 指导教师： 刘电霆 日 期： 2015.3.10 高速切削加工的发展及需求摘要：高速切削加工是当代先进制造技术的重要组成部分，拥有高效率、高精度及高表面质量等特征。本文介绍此技术的定义、发展现状、适用领域以及中国的需求情况。关键字：机械 ；高效；刀具材料 高速切削加工是面向21世纪的一项高新技术，它以高效率、高精度和高表面质量为基本特征，在汽车工业、航空航天、模具制造和仪器仪表等行业中获得了愈来愈广泛的应用，并已取得了重大的技术经济效益，是当代先进制造技术的重要组成部分。高速切削是实现高效率制造的核心技术，工序的集约化和设备的通用化使之具有很高的生产效率。可以说，高速切削加工是一种不增加设备数量而大幅度提高加工效率所必不可少的技术。高速切削加工的优点主要在于：提高生产效率、提高加工精度及降低切削阻力。 有关高速切削加工的含义，目前尚无统一的认识，通常有如下几种观点：切削速度很高，通常认为其速度超过普通切削的5-10倍；机床主轴转速很高，一般将主轴转速在10000-20000r/min以上定为高速切削；进给速度很高，通常达15-50m/min，最高可达90m/min；对于不同的切削材料和所釆用的刀具材料，高速切削的含义也不尽相同；切削过程中，刀刃的通过频率(Tooth Passing Frequency)接近于“机床刀具工件”系统的主导自然频率(Dominant Natural Frequency)时，可认为是高速切削。可见高速切削加工是一个综合的概念。1992年，德国Darmstadt工业大学的H. Schulz教授在CIRP上提出了高速切削加工的概念及其涵盖的范围，如图1所示。认为对于不同的切削对象，图中所示的过渡区(Transition)即为通常所谓的高速切削範围，这也是当时金属切削工艺相关的技术人员所期待或者可望实现的切削速度。高速切削加工对机床、刀具和切削工艺等方面都有一些具体的要求。下面分别从这几个方面阐述高速切削加工技术的发展现状和趋势。现阶段，为了实现高速切削加工，一般釆用高柔性的高速数控机床、加工中心，也有釆用专用的高速铣、钻床。这些设备的共同之处是：必须同时具有高速主轴系统和高速进给系统，才能实现材料切削过程的高速化。高速切削与传统切削最大的区别是，“机床刀具工件”系统的动态特性对切削性能有更强的影响力。在该系统中，机床主轴的刚度、刀柄形式、刀长设定、主轴拉刀力、刀具扭力设定等，都是影响高速切削性能的重要因素。 在高速切削中，材料去除率(Metal Removal Rate，MRR)，即单位时间内材料被切除的体积，通常受限于“机床-刀具-工件”工艺系统是否出现“颤振”。因此，为了满足高速切削加工的需求，首先要提高机床动静刚度尤其是主轴的刚度特性。现阶段高速切削之所以能够成功，一个很关键的因素在于对系统动态特性问题的掌握和处理能力。为了更好地描述机床主轴的刚度特性，工程上提出新的无量纲参数DN值，用以评价机床的主轴结构对高速切削加工的适应性。所谓DN值即“主轴直径与每分钟转速之积”。新近开发的加工中心主轴DN值大都已超过100万。为了减轻轴承的重量，还釆用了比钢制品要轻得多的陶瓷球轴承；轴承润滑方式大都釆用油气混合润滑方式。在高速切削加工领域，目前已开发空气轴承和磁轴承以及由磁轴承和空气轴承合并构成的磁气/空气混合主轴。 在机床进给机构方面，高速切削加工所用的进给驱动机构通常都为大导程、多头高速滚珠丝槓，滚珠釆用小直径氮化硅（Si3N4）陶瓷球，以减少其离心力和陀螺力矩；釆用空心强冷技术来减少高速滚珠丝槓运转时由于摩擦产生温升而造成的丝槓热变形。近几年来，用直线电机驱动的高速进给系统问世，这种进给方式取消了从电动机到工作台溜板之间的一切中间机械传动环节，实现了机床进给系统的零传动。由于直线电机没有任何旋转元件，不受离心力的作用，可以大大提高进给速度。直线电机的另一大优点是行程不受限制。直线电机的次极是一段一段连续铺在机床的床身上。次极铺到哪里，初极工作台就可运动到哪里，而且对整个进给系统的刚度没有任何影响。釆用高速丝槓或直线电机，能够大大提高机床进给系统的快速响应。直线电机最高加速度可达2-10G(G为重力加速度)，最大进给速度可达60-200m/min或更高。2002年举世瞩目的上海浦东磁悬浮列车工程中的磁浮轨道钢梁加工，釆用沈阳机床控股有限公司集团中捷友谊公司厂生产的超长进给系统高速大型加工中心实现。该机床的进给系统为直线导轨和齿轮齿条传动，工作台最大进给速度60m/min，快速行程100m/min，加速度2g，主轴最高转速20000r/min，主电机功率80kW。其X轴的行程长达30m，切削25m长的磁浮轨道钢梁误差小于0.15mm，为磁悬浮列车工程的顺利竣工提供了有力的技术保证。此外，机床的运动性能也将直接影响加工效率和加工精度。在模具及自由曲面的高速切削加工中，主要釆用小切深大进给的加工方法。要求机床在大进给速度条件下，应具有高精度定位功能和高精度插补功能，特别是圆弧高精度插补。圆弧加工是釆用立铣刀或螺纹刀具加工零部件或模具时，必不可少的加工方法。刀具材料的发展：高速切削技术发展的历史，也就是刀具材料不断进步的历史。高速切削的代表性刀具材料是立方氮化硼（CBN）。端面铣削使用CBN刀具时，其切削速度可高达5000m/min，主要用于灰口铸铁的切削加工。聚晶金刚石（PCD）刀具被称之为21世纪的刀具，它特别适用于切削含有SiO2的铝合金材料，而这种金属材料重量轻、强度高，广泛地应用于汽车、摩托车发动机、电子装置的壳体、底座等方面。目前，用聚晶金刚石刀具端面铣削铝合金时，5000m/min的切削速度已达到实用化水平，此外陶瓷刀具也适用于灰口铸铁的高速切削加工；涂层刀具：CBN和金刚石刀具尽管具有很好的高速切削性能，但成本相对较高。釆用涂层技术能够使切削刀具既价格低廉，又具有优异性能，可有效降低加工成本。现在高速加工用的立铣刀，大都釆用TiAIN系的复合多层涂镀技术进行处理，如目前在对铝合金或有色金属材料进行干式切削时，DLC（Diamond Like Carbon）涂层刀具就受到极大的关注，预计其巿场前景十分可观；刀具夹持系统：刀具的夹持系统是支撑高速切削的重要技术，目前使用最为广泛的是两面夹紧式工具系统。已作为商品正式投放巿场的两面夹紧式工具系统主要有：HSK、KM、Bigplus、NC5、AHO等系统。 在高速切削的情况下，刀具与夹具回转平衡性能的优劣，不仅影响加工精度和刀具寿命，而且也会影响机床的使用寿命。因此，在选择工具系统时，应尽量选用平衡性能良好的产品。高速加工的切削速度为常规切速的10倍左右。为了使刀具每齿进给量基本保持不变，以保证零件的加工精度、表面质量和刀具的耐用度，则进给量也必须相应提高10倍左右，达到60m/min以上，有的甚至高达120m/min。因此，高速切削加工通常是釆用高转速、大进给和小切深的切削工艺参数。由于高速切削的切削余量往往很小，所形成的切屑很薄很轻，把切削时产生的热量很快带走；若釆用全新耐热性更好的刀具材料和涂层，釆用干切削工艺也是高速切削加工的理想工艺方案。用高速加工中心组成高效率的柔性生产线(FTL或FML)，具有小型化、柔性突出以及易于变更加工内容等显着特点。图2为上汽集团某发动机公司利用该生产线加工发动机机体、汽缸盖、滤清器座等工件的实例。为了尽快适应新车型的需要，汽车车身覆盖件模具和树脂防冲挡的成形模具等，均必须缩短制作周期和降低生产成本，因此，必须下大力推进模具生产高速化的进程。上汽集团所属各公司认为：与过去的精加工相比，进一步实现高精度化；同时必须满足表面粗糙度、弯曲度的精度要求，为此应施以适当的手工精修加工，由于切削速度的极大提高，与过去的精加工工序相比，加工周期应大幅度缩短。为了发挥以车削加工中心和镗铣类加工中心为代表的高速切削加工技术和自动换刀功能的优势，提高加工效率，对复杂零件的加工应尽可能釆用集中工序的原则，即要求在一次装夹中实现多道工序的集中加工，淡化传统的车、铣、镗、螺纹加工等不同切削工艺的界限，充分发挥设备和刀具的高速切削功能，是当前提高数控机床效率、加快产品开发的有效途径。为此，对刀具提出了多功能的新要求，要求一种刀具能完成零件不同工序的加工，减少换刀次数，节省换刀时间，以减少刀具的数量和库存量，有利于管理和降低制造成本。较常用的有多功能车刀、铣刀、镗铣刀、钻铣刀、钻铣螺纹倒角等刀具。与此同时，在批量生产线上，使用针对工艺需要开发的专用刀具、复合刀具或智能刀具，可以提高加工效率和精度，减少投资。在高速切削条件下，有的专用刀具可将零件的加工时间降至原来的1/10以下，效果十分显着。高速切削具有相当多的好处，例如：有大量材料需要切除的工件，具有超细、薄结构的工件，传统上需要花相当长的机动工时加工的工件以及设计变更快速、产品周期短的工件，均能显示出高速切削所带来的优点。 运动学的基本目的是去设计一个机械零件的理想运动，然后再用数学的方法去描绘该零件的位置，速度和加速度，再运用这些参数来设计零件。因为，对于大部分固着在地球上的机械系统来说，与之联系最密切的是时间，将加速度和动态力定义成时间作用的结果。相应地，应力是作用在物体上的外力和惯性力的作用结果。所以机械设计的内容是要建立一种在该机器的使用寿命内保证其安全的系统，目的是要在一定的工况要求下，对材料进行选择，使材料的应力在许用极限应力之内。这一点很明显要求所有的系统要在理想的限制内工作。在机械设计中，零件受到的最大力是取决于材料本身的动态性能。这些动态力引起了零件的加速度，加速度又要回到运动学中去计算，这是机械设计的基础。运动分析是最基本的也是最早出现在设计的过程中的，它对与任何一个零件的成功设计够起着至关重要的作用。在设计过程中很差的运动学分析会带来麻烦和错误。根据机构所具有的自由度，任何机械系统都可以被分类。系统的自由度是在任何时候限制它的位置独立的参数数目。在通常情况下，刚体在相关的平面内能实现复杂的自由运动，这个运动同时包括转动和平移。在三纬空间内，在可以饶任何轴转动的同时可以沿着三个坐标平移。在一个平面或是一个二维的空间内，复杂运动变成了饶一个(垂直与这个平面的)轴线的转动和同时发生的可术语低副是用来描绘接头间的面接触。，如针和孔的结合面。高副是用来描绘接头间的点和线接触。但是如果在针和孔之间有间隙存在(当它们之间用于有相对运动时)当针和孔只有一面接触时，在针间的面联接实际上已经变成了线接触。类似的，微观上看，在平面滑动的杆件实际上只存在一些相关点的接触，那是表面凹凸不平的突点，低副相对于高副的优点是有利于接触表面之间的润滑，这一点对于旋转接头来说是确实存在的。在高副中润滑易被挤出来。结果铰接接头能够减少摩擦，延长寿命。当我们设计机械时，为了取得运动部件的加速度信息必须首先对我们的设计进行全面的运动分析。接下来再运用牛顿第二运动定律去计算动态力。但是这样做，我们需要知道所有运动部件的质量，和加速度，这些零件还没有存在，正如碰到的所有设计问题，我们在设计决定零件最佳尺寸和形状时缺少足够的信息。为了通过最初的计算我们必须估计零件的质量和设计的其它部分。当我们得到更多的信息时，再得到更好的解决方案。在估计你设计的零件质量的初期通过合理的假设零件的形状和尺寸及其合理选择材料来获得。然后计算每个零件的体积，再去乘以所选材料的质量密度，去取得零件最初的合理质量。这些质量值在牛顿方程中可以运用。我们如何来判断我们所选择的尺寸和形状是否合理呢?很不巧，我们要到分析完所受应力和失效分析后才能知道，特别是细长零件，如轴，细长的连杆，甚至在很小的应力条件下，零件在动载的的失效形式将限制我们的设计。这种情况我们经常碰到。我们可能将会发现零件在动载荷的情况下会失效。然后我们将反过来检查我们初选时假设的形状，尺寸和材料，重新来选择设计。然后重复力，应力和失效分析。 设计不可避免地成为一个迭代过程。值得注意的是，在静力作用下，可以通过增加零件的质量来提高其强度，将不合格的设计变为合格，而在动态力作用的情况下，这样做可能产生有害的后果。在相同的加速度条件下，更大的质量将会产生更大的力，随即也会有更大的应力。为了降低应力和失效，设计者要从零件上去除一些质量。同时设计者需要对材料的特性和应力实效分析都要有很好的了解才能通过用合理的形状和尺寸来达到最小的质量，与此同时，抵御动态力的强度和刚度最大。在设计任何机器或者机构时，所考虑的主要事件之一是其强度应该比它所承受的应力要大的多，以确保安全可靠性，要保证机械零件在使用过程中不发生失效，就必须知道它们在某些时候会发生失效的原因，然后，才能将应力和强度联系起来，以确保其安全。设计任何机械零件的理想情况为，工程师可以利用大量的他所选的这种材料的强度试验数据。这些试验应该采用与所设计是零件有着相同是热处理，表面粗糙度和尺寸大小的试件进行，而且试验应该在与零件使用过程中承受的载荷完全相同的情况下进行。这表明，如果零件将要承受弯曲载荷，那么就应该进行弯曲载荷的试验。如果零件将要受弯曲和扭转的复合载荷，那么就应该进行弯曲和扭转复合载荷的试验，这些种类的试验可以提供非常有效和精准的数据。它们可以告诉工程师应该使用的安全系数和对于给定的寿命时的可靠性。在设计过程中，只要能获得这种数据，工程师就可以尽可能好地进行工程设计工作。如果零件的失效可能危害人的生命安全，或者零件有足够大的产量，则在设计前收集这样广泛的数据所花费的费用是很值得的，例如，汽车和冰箱的零件的产量非常的大，在生产之前对它们进行大量的试验，使其具有较高的可靠性。如果把进行这些试验的费用分摊到所生产的零件上的话，则摊到所生产每个零件的费用是非常低的。参考文献1. A. I. Fedulov and V. N. Labutin, Impact Coal Destruction in Russianl, Nauka, Novosibirsk(1973).2. A. A. Yablonskii, A Course in Theoretical Mechanics, 5th rev. ed. in Russian,Vysshaya Shkola, Moscow (1977).3. V. I. Balovnev, Modeling of the Interaction of Actuator Elements of Road ConstructionMachines with the Surrounding Media in Russian, Vysshaya Shkola, Moscow (1981).4. V. A. Sidorov, A study of the process of destruction of permafrost grounds with solidinclusions by a frequent-stroke working element (with special reference to the Norilskindustrial region), Candidates Dissertation, Technical Sciences, VNIIstroidormash,Moscow (1977).5. A. F. Kichigin and E. I. Safankov, Test ground studies of an active bucket of an E-652 excavator, in: Construction Machines and Mechanisms in Russian, Politekh.Inst., Karaganda (1972).6. N. G. Antsiferova, A. M. Demenok, A. A. Korablev, et al., Experimental studies offorce and kinematic parameters of a high-power dynamic installation, in: Technologyand Mechanization of Coal Mining in Russian, A. A. Skochinskii IGD (1971).7. S. T. Sofronov and O. N. Egorova, Theoretical evaluation of an impact destructionzone, in: Methods of Solution of Problems of Mathematical Physics in Russian,Yakutsk (1980).8. Yu. I. Belyakov, Improved Technologies for Mining and Haulage in Open Pits in Russian,Nedra, Moscow (1977).9. O. D. Alimov, V. K. Manzhosov, and V. . Eremyants, Impact: Propagation of DeformationWaves in Impact Systems in Russian, Nauka, Moscow (1985).i0. R. Goodman, Hard Rock Mechanics Russian translation, Stroiizdat, Moscow (1987).英文原文High-speed machining and demand for the development ofRobert ContentCentre for Advanced Instrumentation, Durham University, Rochester Building, South Road, Durham DH1 3LE, UKAvailable online 31 March 2006Abstract:High-speed machining is contemporary advanced manufacturing technology an important component of the high-efficiency, High-precision and high surface quality, and other features. This article presents the technical definition of the current state of development of Chinas application fields and the demand situation. Key word: machining; high-efficiency;tool materialHigh-speed machining is oriented to the 21st century a new high-tech, high-efficiency, High-precision and high surface quality as a basic feature, in the automobile industry, aerospace, Die Manufacturing and instrumentation industries gained increasingly widespread application, and has made significant technical and economic benefits. contemporary advanced manufacturing technology an important component part.HSC is to achieve high efficiency of the core technology manufacturers, intensive processes and equipment packaged so that it has a high production efficiency. It can be said that the high-speed machining is an increase in the quantity of equipment significantly improve processing efficiency essential to the technology. High-speed machining is the major advantages : improve production efficiency, improve accuracy and reduce the processing of cutting resistance.The high-speed machining of meaning, at present there is no uniform understanding, there are generally several points as follows : high cutting speed. usually faster than that of their normal cutting 5 -10 times; machine tool spindle speed high, generally spindle speed in -20000r/min above 10,000 for high-speed cutting; Feed at high velocity, usually 15 -50m/min up to 90m/min; For different cutting materials and the wiring used the tool material, high-speed cutting the meaning is not necessarily the same; Cutting process, bladed through frequency (Tooth Passing Frequency) closer to the machine-tool - Workpiece system the dominant natural frequency (Dominant Natural Frequency), can be considered to be high-speed cutting. Visibility high-speed machining is a comprehensive concept. 1992. Germany, the Darmstadt University of Technology, Professor H. Schulz in the 52th on the increase of high-speed cutting for the concept and the scope, as shown in Figure 1. Think different cutting targets, shown in the figure of the transition area (Transition), to be what is commonly called the high-speed cutting, This is also the time of metal cutting process related to the technical staff are looking forward to, or is expected to achieve the cutting speed.High-speed machining of machine tools, knives and cutting process, and other aspects specific requirements. Several were from the following aspects : high-speed machining technology development status and trends.At this stage, in order to achieve high-speed machining, general wiring with high flexibility of high-speed CNC machine tools, machining centers, By using a dedicated high-speed milling, drilling. These equipment in common is : We must also have high-speed and high-speed spindle system feeding system, Cutting can be achieved in high-speed process. High-speed cutting with the traditional cutting the biggest difference is that Machine-tool-workpiece the dynamic characteristics of cutting performance is stronger influence. In the system, the machine spindle stiffness, grip or form, a long knife set, spindle Broach, torque tool set, Performance high-speed impact are important factors.In the high-speed cutting, material removal rate (Metal Removal Rate, MRR), unit time that the material was removed volume, usually based on the machine-tool-workpiece whether Processing System chatter. Therefore, in order to satisfy the high-speed machining needs, we must first improve the static and dynamic stiffness of machine spindle is particularly the stiffness characteristics. HSC reason at this stage to be successful, a very crucial factor is the dynamic characteristics of the master and processing capability.In order to better describe the machine spindle stiffness characteristics of the project presented new dimensionless parameter - DN value, used for the evaluation of the machine tool spindle structure on the high-speed machining of adaptability. DN value of the so-called axis diameter per minute speed with the product. The newly developed spindle machining center DN values have been great over one million. To reduce the weight bearing, but also with an array of steel products than to the much more light ceramic ball bearings; Bearing Lubrication most impressive manner mixed with oil lubrication methods. In the field of high-speed machining. have air bearings and the development of magnetic bearings and magnetic bearings and air bearings combined constitute the magnetic gas / air mixing spindle.Feed the machine sector, high-speed machining used in the feed drive is usually larger lead, multiple high-speed ball screw and ball array of small-diameter silicon nitride (Si3N4) ceramic ball, to reduce its centrifugal and gyroscopic torque; By using hollow-cooling technology to reduce operating at high speed ball screw as temperature generated by the friction between the lead screw and thermal deformation.In recent years, the use of linear motor-driven high-speed system of up to Such feed system has removed the motor from workstations to Slide in the middle of all mechanical transmission links, Implementation of Machine Tool Feed System of zero transmission. Because no linear motor rotating components, from the role of centrifugal force, can greatly increase the feed rate. Linear Motor Another major advantage of the trip is unrestricted. The linear motor is a very time for a continuous machine shop in possession of the bed. Resurfacing of the very meeting where a very early stage movement can go, but the whole system of up to the stiffness without any influence. By using high-speed screw, or linear motor can greatly enhance machine system of up to the rapid response. The maximum acceleration linear motors up to 2-10G (G for the acceleration of gravity), the largest feed rate of up to 60 -200m/min or higher. 2002 world-renowned Shanghai Pudong maglev train project of maglev track steel processing, Using the Shenyang Machine Tool Group Holdings Limited McNair friendship company production plants into extra-long high-speed system for large-scale processing centers achieve . The machine feeding system for the linear guide and rack gear drive, the largest table feed rate of 60 m / min, Quick trip of 100 m / min, 2 g acceleration, maximum speed spindle 20000 r / min, the main motor power 80 kW. X-axis distance of up to 30 m, 25 m cutting long maglev track steel error is less than 0.15 mm. Maglev trains for the smooth completion of the project provided a strong guarantee for technologyIn addition, the campaign machine performance will also directly affect the processing efficiency and accuracy of processing. Mold and the free surface of high-speed machining, the main wiring with small cut deep into methods for processing. Machine requirements in the feed rate conditions, should have high-precision positioning functions and high-precision interpolation function, especially high-precision arc interpolation. Arc processing is to adopt legislation or thread milling cutter mold or machining parts, the essential processing methods.Cutting Tools Tool Material development high-speed cutting and technological development of the history, tool material is continuous progress of history. The representation of high-speed cutting tool material is cubic boron nitride (CBN). Face Milling Cutter use of CBN, its cutting speed can be as high as 5000 m / min, mainly for the gray cast iron machining. Polycrystalline diamond (PCD) has been described as a tool of the 21st century tool, It is particularly applicable to the cutting aluminum alloy containing silica material, which is light weight metal materials, high strength, widely used in the automobile, motorcycle engine, electronic devices shell, the base, and so on. At present, the use of polycrystalline diamond cutter Face Milling alloy, 5000m/min the cutting speed has reached a practical level. In addition ceramic tool also applies to gray iron of high-speed machining; Tool Coating : CBN and diamond cutter, despite good high-speed performance, but the cost is relatively high. Using the coating technology to make cutting tool is the low price, with excellent mechanical properties, which can effectively reduce the cost. Now high-speed processing of milling cutter, with most of the wiring between the Ti-A1-N composite technology for the way of multi-processing, If present in the non-ferrous metal or alloy material dry cutting, DLC (Diamond Like Carbon) coating on the cutter was of great concern. It is expected that the market outlook is very significant; Tool clamping system : Tool clamping system to support high-speed cutting is an important technology, Currently the most widely used is a two-faced tool clamping system. Has been formally invested as a commodity market at the same clamping tool system are : HSK, KM, Bigplus. NC5, AHO systems. In the high-speed machining, tool and fixture rotary performance of the balance not only affects the precision machining and tool life. it will also affect the life of machine tools. So, the choice of tool system, it should be a balanced selection of good products. Process Parameters Cutting speed of high-speed processing of conventional shear velocity of about 10 times. For every tooth cutter feed rate remained basically unchanged, to guarantee parts machining precision, surface quality and durability of the tool, Feed volume will also be a corresponding increase about 10 times, reaching 60 m / min, Some even as high as 120 m / min. Therefore, high-speed machining is usually preclude the use of high-speed, feed and depth of cut small cutting parameters. Due to the high-speed machining cutting cushion tend to be small, the formation of very thin chip light, Cutting put the heat away quickly; If the wiring using a new thermal stability better tool materials and coatings, Using the dry cutting process for high-speed machining is the ideal technology program.High-speed machining field of applicationFlexible efficient production lineTo adapt to the needs of new models, auto body panel molds and resin-prevention block the forming die. must shorten the production cycle and reduce the cost of production and, therefore, we must make great efforts to promote the production of high-speed die in the process. SAIC affiliated with the company that : Compared to the past, finishing, further precision; the same time, the surface roughness must be met, the bending of precision, this should be subject to appropriate intensive manual processing. Due to the extremely high cutting speed, and the last finishing processes, the processing cycle should be greatly reduced. To play for machining centers and boring and milling machining center category represented by the high-speed machining technology and automatic tool change function of distinctions Potential to improve processing efficiency, the processing of complex parts used to be concentrated as much as possible the wiring process, that is a fixture in achieving multiple processes centralized processing and dilute the traditional cars, milling, boring, Thread processing different cutting the limits of technology, equipment and give full play to the high-speed cutting tool function, NC is currently raising machine efficiency and speed up product development in an effective way. Therefore, the proposed multi-purpose tool of the new requirements call for a tool to complete different parts of the machining processes, ATC reduce the number of ATC to save time, to reduce the quantity and tool inventory, and management to reduce production costs. More commonly used in a multifunctional Tool, milling, boring and milling, drilling milling, drilling-milling thread-range tool. At the same time, mass production line, against the use of technology requires the development of special tools, tool or a smart composite tool, improve processing efficiency and accuracy and reduced investment. In the high-speed cutting conditions, and some special tools can be part of the processing time to the original 1 / 10 below, results are quite remarkable. HSC has a lot of advantages such as : a large number of materials required resection of the workpiece with ultrafine, thin structure of the workpiece, Traditionally, the need to spend very long hours for processing mobile workpiece and the design of rapid change, short product life cycle of the workpiece, able to demonstrate high-speed cutting brought advantages.One princple aim of kinemarics is to creat the designed motions of the subject mechanical parts and then mathematically compute the positions, velocities ,and accelerations ,which those motions will creat on the parts. Since ,for most earthbound mechanical systems ,the mass remains essentially constant with time,defining the accelerations as a function of time then also defines the dynamic forces as a function of time. Stress,in turn, will be a function of both applied and inerials forces . since engineering design is charged with creating systems which will not fail during their expected service life,the goal is to keep stresses within acceptable limits for the materials chosen and the environmental conditions encountered. This obvisely requies that all system forces be defined and kept within desired limits. In mechinery , the largest forces encountered are often those due to the dynamics of the machine itself. These dynamic forces are proportional to acceletation, which brings us back to kinematics ,the foundation of mechanical design. Very basic and early decisions in the design process invovling kinematics wii prove troublesome and perform badly.Any mechanical system can be classified according to the number of degree of freedom which it possesses.the systems DOF is equal to the number of independent parameters which are needed to uniquely define its posion in space at any instant of time.A rigid body free to move within a reference frame will ,in the general case, have complex motoin, which is simultaneous combination of rotation and translation. In three-dimensional space , there may be rotation about any axis and also simultaneous translation which can be resoled into componention along three axes, in a plane ,or two-dimentional space ,complex motion becomes a combination of simultaneous along two axes in the plane. For simplicity ,we will limit our present discusstions to the case of planar motion:Pure rotation the body pessesses one point (center of rotation)which has no motion with respect to the stationary frame of reference. All other points on the body describe arcs about that center. A reference line drawn on the body through the center changes only its angulai orientation.Pure translation all points on the body describe parallel paths. A reference line drawn on the body changes its linear posion but does not change its angular oriention.Complex motion a simulaneous combination of rotion and translationm . anyreference line drawn on the body will change both its linear pisition and its angular orientation. Points on the body will travel non-parallel paths ,and there will be , at every instant , a center of rotation , which will continuously change location.Linkages are the bacis building blocks of all mechanisms. All common formsof mechanisms (cams , gears ,belts , chains ) are in fact variations of linkages. Linkages are made up of links and kinematic pairs.A link is an (assumed)rigid body which possesses at least two or more links (at their nodes), which connection allows some motion, or potential motion,between the connected links.The term lower pair is used tohe moving parts .we next want te use newtons second law to caculate the dynamic forces, but to do so we need to know the masses of all the moving parts which have these known acceletations. These parts do not exit yet ! as with any design in order to make a first pass at the caculation . we will then have to itnerate to better an better solutions as we generate more information.A first estimate of your parts masses can be obtained by assuming some reasonable shapes and size for all the parts and choosing approriate materials. Then caculate the volume of each part and multipy its volume by materials mass density (not weight density ) to obtain a first approximation of its mass . these mass values can then be used in Newtons equation.How will we know whether our chosen sizes and shapes of links are even acceptable, let alone optimal ? unfortunately , we will not know untill we have carried the computations all the way through a complete stress and deflection analysis of the parts. It it often the case ,especially with long , thin elements such as shafts or slender links , that the deflections of the parts, redesign them ,and repeat the force ,stress ,and deflection analysis . design is , unavoidably ,an iterative process .It is also worth nothing that ,unlike a static force situation in which a failed design might be fixed by adding more mass to the part to strenthen it ,to do so in a dynamic force situation can have a deleterious effect . more mass with the same acceleration will generate even higher forces and thus higher stresses ! the machine desiger often need to remove mass (in the right places) form parts in order to reduce the stesses and deflections due to F=ma, thus the designer needs to have a good understanding of both material properties and stess and deflection analysis to properlyshape and size parts for minimum mass while maximzing the strength and stiffness needed to withstand the dynamic forces.One of the primary considerations in designing any machine or strucre is that the strength must be sufficiently greater than the stress to assure both safety and reliability. To assure th