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CA6140 法兰盘 零件 机械 加工 工艺 规程 数控 策略 设计

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CA6140法兰盘零件的机械加工工艺规程、数控加工策略及钻模的设计,CA6140,法兰盘,零件,机械,加工,工艺,规程,数控,策略,设计

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摘要装备制造业是一个国家的支柱性产业，没有强大的装备制造业，就没有强大的国防基础，就不能使国家真正的强大富强。装备制造业是一个国家科技发展水平的综合体现。只有提高零件的加工效率，加工质量，降低加工成本，其生产出来的产品才能具有较强的市场竞争力。数控机床的主要优点有：具有高度柔性，加工精度高，加工质量稳定可靠，生产效率高，改善劳动条件，有利于生产的现代化管理。数控机床的这些优点使其自机床行业的竞争力不断提高。数控铣削加工是最主要的加工方法之一，主要包括平面铣削和轮廓铣削也可以对零件进行钻、扩、铰、镗、锪加工及螺纹加工等。数控铣削主要适合于下列几类零件的加工，平面类零件、直纹曲面类零件、立体曲面类零件。本设计主要以定模加工为例，对其进行工艺分析，程序编制。关键词：数控铣床 数控铣削加工AbstractMachinery manufacturing industry is a pillar industry in the national economy, it can be said that without a developed machinery manufacturing, it is impossible to state the true prosperity of the prosperity. And machinery manufacturing scale and level of development, economic strength and scientific and technological level of response is one of the important signs. Improve processing efficiency, reduce production costs, improve processing quality and rapid updating products, machinery manufacturing and development on the basis of competition, machinery manufacturing technology is a symbol. First in the early 1950s, the 20th century a CNC machine tool, mechanical and electrical integration is a typical CNC machine tool products, integrated precision machinery, electronics, electric traction, automatic control, automatic detection, fault diagnosis, and computer technology in such areas. High-precision CNC machine tool. high efficiency and high flexible decision is vigorously promoting the use of CNC machine tool manufacturers to increase manufacturing capacity, improve their ability to adapt and competitive ability. CNC milling machining is the most commonly used method of NC and the main one, since the accession to the WTO. Chinas automobile industry, the aerospace industry has been developing rapidly, a large number of parts with complex surfaces such as mold, and the propeller blade, CNC milling machine for processing needs. NC machining process to the design, programming and operations at the core, focusing on the NC Machining Technology, CNC Milling Machine Programming, CNC milling machine operation. Typical NC machining parts such as the Comprehensive Practical application of knowledge and skills. Key words：CNC Milling Machine CNC milling machining第1章 绪论1.1 计算机数控的概念与发展1计算机数控的概念（1）数字控制（数控）的概念GB8129-1997中对数控的定义为：用计算机控制，在运行过程中不断地引入数值数据，从而对生产过程实现自动控制。（2）数控机床（NC machine tools）数控机床：用数值数据的形式描述命令，按照规定的程序自动运行的机床（3）数控系统在数控机床这个大行业中，数控系统可编程序控制器、计算机数字控制装置、主轴驱动装置和进给驱动等相关设备的总称。有时则仅指计算机数字控制装置。为区便于区别我们将计算机数字控制装置称为数控装置。2计算机数控的发展从第一台数控机床问世到现在已经有40年了，随着不断发展的微电子技术，数控装置也在不停的更新，依次经历了电子管时代（1952年）、晶体管时代（1959年）、小规模集成电路时代（1965年）、大规模集成电路及小型计算机时代（1970年）和微处理机或微型计算机（1974年）等五个时代。前三代数控装置采用专用控制计算机的硬接线（硬件），被称为NC数控装置。在20世纪的70年代初期，计算机额技术不断发展，小型计算机的价格不断的下降，并且硬件控制计算机被小型计算机所代替这也被称为第四代数控系统。这种数控系统不仅经济实惠，而且用编制的专用程序可以实现许多功能，同时小型计算机的存储器可以存储这些专用程序，构成控制软件。这种数控系统称为计算机数控系统（computerized numerical control，即CNC ）。从1974年开始在以微处理机为核心的数控装置（microcomputerized numerical control，即MNC）得到迅速发展。我国的数控机床是从1958年开始研制的，进入实用阶段是在20世纪60年代。，我国的数控系统在性能、可靠性等多个方面得到了迅速冲锋发展的主要原因是：在20世纪80年代引入德国、日本、美国等国外著名数控系统和伺服系统制造商的先进技术。为了掌握现代数控技术的核心内容，我国先后经过“六五”、“七五”、“八五”及“九五”科技攻关。目前我国已有数控配套单元生产企业五十多家，数控主机生产企业百余家。1.2 数控技术与数控机床数控技术（以后简称为数控），顾名思义就是利用数字化信息对机床的加工过程进行控制。机床只有装备了相应的硬件和软件才能对机床的加工过程进行数字化信息控制。数控机床（NC机床）指的是采用数控技术进行控制的机床。它是一种典型的机电一体化产品综合应用了自动控制技术、计算机技术、精密测量技术，并且成为了现代制造技术的基础。数控技术在机床控制技术应用十分广泛。因此，数控机床的生产水平代表了这个国家的基础工业的水平，也是这个国家现代化的重要指标。采用了数控技术进行控制的机床统称数控机床，数控机床的种类很多，有数控钻、数控镗、数控铣、数控车等，还有集多种加工功能与一身的加工中心。加工中心带有自动刀具交换装置（Automatic Tool Changer-ATC）。它可以自动换刀，只需一次装夹即可以完成多工序的加工，实现了各种工序的集中加工，从而缩短了转序时间等辅助加工时间，提高了机床的效率；多工序一次定位，减少了零件安装、定位次数，提高了加工精度。目前数控机床中产量最大、应用最广的数控机床就是加工中心第2章 零件的分析（一）零件的作用 题目给的零件是CA6140卧式车床上的法兰盘，它位于车床丝杆的末端，主要作用是标明刻度，实现纵向进给。零件的 100外圆上标有刻度线，用来对齐调节刻度盘上的刻度值，从而能够直接读出所调整的数值。法兰盘中部的通孔则给传递力矩的标明通过，本身没有受到多少力的作用。该零件年产量为4000件，设其备品率为4%，机械加工废品率为1%，则该零件的年生产纲领为：N=Qn(1+ + )=40001(1+4%+1%)=4200(件/年)，法兰盘的年产量为4200件，查表可知该产品为中批生产。（二） 零件的工艺分析 法兰盘共有三组加工表面，他们之间有一定的位置要求。现分述如下： 1以20 的孔为中心加工表面； 2 俩端面； 3 以90为中心的加工表面。 它们之间的位置要求主要是：（1）100mm 左端面与45 mm孔中心轴的跳动度为 ；（2）90mm 右端面与 45 mm孔中心轴线的跳动度为 。 通过对工件的以上加工表面的充分分析，可先初步选定粗基准，加工出精基准所在的加工表面，之后则需要借助专用夹具（钻孔夹具等）对其他加工表面进行加工，以充分的保证它们的位置精度。（三）工艺规程设计（一）确定毛坯的制造形式 材料：HT200。由于零件形状比较简单，较易加工，所以毛坯形状与零件的形状尽量接近，便于加工，内孔不用铸出。（二） 基准的选择 1 粗基准的选择法兰盘轴类零件，应以外圆作为粗基准。一般以非加工表面作为粗基准，但法兰盘各面均需加工，这样应以加工余量最小的面为粗基准。先以法兰盘右端直径 45的外圆及直径 90的右端面作为粗基准，然后利用三爪卡盘夹紧45 mm外圆可同时削除五个自由度，再以 90的右端面定位可削除自由度。2 精基准的选择精基准的选择主要考虑基准重合与统一基准原则。以20mm孔为精基准。（三）制定工艺路线1 工艺路线方案一(1) 工序粗车 100mm柱体左右端面及外圆外圆留有余量。以右端45 mm为粗基准(二)工序 钻、扩、粗铰、精铰 20mm孔至图样尺寸并车孔左端的倒角。(三)工序 粗车45，90的外圆，粗车各端面，粗车90的倒角，粗车3x2的槽，R5的圆角。以20为精基准。(四)工序 半精车90外圆及各端面，车槽32，R5的圆角。(五)工序 半精车100左右端面及外圆，精车100的左端面。(六)工序 粗铣90的左端面；粗铣、精铣 90柱体右侧面。(七)工序 钻 49孔。(八)工序钻4孔，铰 6孔。(九)工序磨削100的右端面，90外圆及左右端面，45外圆。(十)工序 磨削外圆面 100， 90 。(十一)工序 刻字刻线。(十二)工序 镀铬。(十三)工序检测入库。2 工艺路线方案二(一)工序 钻、扩、铰20的孔，以右端45的外圆为粗基准。(二)工序 粗车100外圆，B面，90外圆及右侧面，3x2槽，45外圆。粗车零件左右端面(三)工序 粗车零件左右端面，并倒20孔的倒角，以及零件右端45度倒角。(四)工序半精车100外圆，90外圆。(五)工序半精车零件左端面。(六)工序 精车100外圆，并倒100，90的倒角。(七)工序精车零件在端面。(八)工序粗铣 90的左端面；粗铣、精铣 90柱体右侧面。(九)工序 钻 49孔。(十)工序 钻4孔，铰 6孔。(十一)工序磨削90外圆及右侧45外圆。(十二)工序 抛光B面。(十三)工序 刻字画线。（十四）工序 镀铬。（十五）工序 检测入库。3工艺方案的比较与分析上述两种工艺方案的特点在于：第二方案：考虑以直径20mm孔为精加工基准，第一方案：从右端面开始加工到左端面，然后再钻孔直径20mm，如果这样则很难保证其圆跳动的误差精度等。最终选择第二方案作为加工工艺路线适用。（4） 毛坯尺寸的确定与机械加工余量零件材料为灰铸铁，查询工艺手册毛坯应为为双侧加工，MA为G，加工精度为8-10级，初步选取选取9级。则，由机械制造工艺设计简明手册表2.2-4得：零件延轴线方向的加工余量为：2x2.5mm=5mm100径向加工余量为6mm，轴向加工余量为2x2.5mm=5mm90径向加工余量为2x2.5mm=5mm，轴向加工余量为2x2.5mm=5mm45径向加工余量为2x2.5mm=5mm通过查询机械零件工艺性手册表：2-64得：100，90柱体圆角为：R=2mm；右端45的圆角为：R=4mm；零件上连接法兰的过渡部分的尺寸确定为：R=5mm，C=3mm，H=15mm。由以上尺寸可以得出毛坯尺寸图。（五）确定切削用量及基本工时工序 ：钻，扩，铰20孔1.加工条件工件材料：HT200 硬度170241HB，取190HB，机器砂型铸造。加工要求：钻，扩，铰20孔机床：转塔车床C365L2.计算切削用量1) 钻 18孔（1）刀具选择：通过查询机械制造工艺设计简明手册选用 18高速钢锥柄标准花钻加工。（2）切削用量选择：通过查询切削用量手册可以得出：f=0.700.86mm/r通过查询机械制造工艺设计简明手册：C365L车床进给量取f =0.76mm/r。 查询切削用量简明手册则取V =13m/min=230r/min按机床选取n =238r/m,故=18m/min(3)计算基本工时：T=（L+L1+L2）/(fn)=0.66min。2) 扩19.8 孔（1）刀具选择：选用 19.8高速钢锥柄扩孔钻。（2）确定切削用量： 查询切削用量简明手册得：f=0.901.1mm/r, 查询机械制造工艺设计简明手册C365L车床进给量取f =0.92mm/r。扩孔时的切削速度，由现代机械制造工艺流程设计实训教程得公式： 扩=（1/21/3）钻 查切削用量简明手册取VC =0.29m/s=17.4m/minVC=（1/21/3）VC =5.88.7m/min=93140r/min按机床选取n =136r/m,故=8.5m/min (3)计算基本工时：T=（L+L1+L2）/(fn)=(91+14+2)/(0.92136)=0.86min。其中L=91，L1=14,L2=2 3)铰20 （1）刀具选择： 20高速钢锥柄机用铰刀（2）确定切削用量：背吃刀量ap=0.12。由切削用量简明手册表2.11 f=1.32.5mm/r,取f=1.68由切削用量简明手册表2.30得=7.9m/min=125.8 r/min按机床选取 =136 r/min所以实际切削速度=8.54m/min (3)计算基本工时：T=(L+L1+L2)/(f*n) =0.44min工序 粗车100外圆、车B面。车90外圆及右侧面、3x2槽、45外圆加工条件机床选择：CA6140车床刀具1：刀片材料YG6，刀杆尺寸BxH=16x25mm， 刀具2：刀片材料为高速钢，成型车刀，刀杆尺寸30x45 刀具3：刀片才；材料高速钢，切断车刀，刀杆尺寸16x252.计算切削用量（1）粗车100外圆 用刀具11)确定背吃刀量a (即切深a ) 粗车的余量为1.5mm，一次走刀完成，即a =1.5mm。2)确定进给量通过查询切削用量简明手册：材料HT200、工件直径100mm、切削深度a =1.5mm，则取进给量为0.60.9 mm/r。再根据CA6140车床说明书，取横向进给量取f =0.86mm/r。 选择磨钝标准及耐用度：根据切削用量简明手册表1.9，取车刀后面最大磨损量为0.81.0。焊接车刀耐用度T=60mm。3)确定切削速度V 根据切削用量简明手册表1.27=57.46 m/min=172 r/min按CA6140车床转速（机械制造工艺设计简明手册表4.28）选择与172r/min相近似的机床转速n =200r/min,则实际切削速度V = 66.6m/min。4）计算基本工时：按机械制造工艺设计简明手册公式计算：T=0.149min（2）粗车 90外圆 选择刀具：用刀具1。1）确定背吃刀量 粗车外圆ap=1.1mm。2)确定进给量 查询得切削用量简明手册HT200，刀杆尺寸为16 x25mm，,工件直径为90mm，则f=0.60.9 mm/r。 再根据车床说明书，取横向进给量取f =0.86mm/r。查询得切削用量简明手册表1.9查取后刀面磨损最大限度为0.81.0，焊接耐用度T=60mm。3)确定切削速度VC根据切削用量简明手册表1.27=44 m/min=147.6 r/min 按车床转速 选择与157.5r/min相近似的机床转速n =160r/min,则实际切削速度 V =47.728 m/min。4)计算基本工时：T=（L+L1+L2+L3）i/(fn)=0.153min(3) 粗车45 外圆 选择刀具1 1）确定切削深度粗车外圆，一次走刀，则ap=1.1mm。2)确定进给量根据切削用量手册，HT200，刀杆尺寸为16x 25mm，ap=1.1,工件直径为45mm，则f=0.40.5mm/r。再通过查询简明手册表4.23查取f =0.45mm/r。 3)确定切削速度VC根据切削用量手册表1.27查取：=62.7 m/min=399 r/min按车床说明书，选择与399r/min相近似的机床转速n =400r/min,则实际切削速度V = 62.8m/min。4)计算基本工时：T=（L+L1+L2+L3）i/(fn) =0.286min。（4）成型车刀加工B面 1）确定切削深度，一次走刀，则ap=2.5mm。T=120min2)确定进给量f=0.0350.070mm/r。取f =0.050mm/r。 3)确定切削速度VC根据切削用量手册表1.27查取：=40.602 m/min=121.987 r/min按车床说明书，选择与121.987r/min相近似的机床转速n =125r/min,则实际切削速度V =41.605m/min。4)计算基本工时：T=（L+L1+L2+L3）i/(fn) =11.04min。（5）车90右端面及3x2槽 1）确定切削深度，一次走刀，则ap=2.5mm。2)确定进给量根据查询切削用量手册表1.4，f=0.60.9mm/r。根据机床说明书（见工艺手册表1.31）取f=0.86 mm/r3)确定切削速度VC根据切削用量手册表1.27查取：=13.965 m/min=46.815 r/min按车床说明书，选择与46.815r/min相近似的机床转速n =50r/min,则实际切削速度V = 15.072m/min。4)计算基本工时：T=（L+L1+L2+L3）i/(fn) =1.419min。工序 粗车零件左右端面，并倒20孔的倒角，零件右端45度倒角1. 加工条件机床选择：CA6140车床刀具1：刀片材料YG6，刀杆尺寸BxH=16x25mm， 2.计算切削用量粗车零件左端面，即，粗车 100左端面1）确定切削用量ap =1.1mm。2)确定进给量通过查询切削用量简明手册：取进给量为0.60.9 mm/r。再根据CA6140车床说明书（见机械制造工艺设计简明手册表1.31查取）进给量取f =0.86mm/r。 根据查询的切削用量简明手册表1.9，取车刀后面最大磨损量为0.81.0。 焊接车刀的耐用度：T=60mm。3)确定切削速度V 根据查询的切削用量简明手册表1.27=49.56 m/min=149 r/min 按机床说明书，选择与149r/min相近似的机床转速n =160r/min 则实际切削速度:V =53m/min。4）计算基本工时：按查询的机械制造工艺设计简明手册公式计算：T= 0.385min粗车零件右端面1）确定切削用量ap =2.5mm。2)确定进给量查询切削用量简明手册：取进给量为0.40.5 mm/r。再根据车床说明书进给量取f =0.45mm/r。根据切削用量简明手册，取车刀后面最大磨损量为0.81.0。焊接车刀耐用度：T=60mm。3)确定切削速度V 根据查询切削用量简明手册表1.27=14 m/min=89r/min按车床说明书，选择与89r/min相近似的机床转速n =100r/min,则实际切削速度V =15.7m/min。（3）计算基本工时：按机械制造工艺设计简明手册公式计算：T= 0.674min工序半精车100外圆、B面，90外圆、45外圆1.加工条件机床选择：CA6140车床刀具1：刀片材料YG6，刀杆尺寸BxH=16x25mm， 刀尖圆弧半径0.5mm2.计算切削用量（1）半精车100外圆 用刀具11)确定背吃刀量a (即切深a ) 半车的余量为0.9mm，一次走刀完成，即a =0.9mm。2)确定进给量查询的切削用量简明手册表1.6：加工材料：HT200、工件直径：100mm、切削深度：a =0.9mm，表面粗糙度为：6.3，刀尖圆弧半径：0.5mm，则进给量为0.250.40 mm/r。再根据CA6140车床说明书，取横向进给量取f =0.30mm/r。车刀耐用度T=60mm。3)确定切削速度V 根据查询得切削用量简明手册表1.27=103.071 m/min=309.971 r/min按车床转速（机械制造工艺设计简明手册表4.28）选择与309.871r/min相近似 的机床转速n =320r/min,则实际切削速度V = 106.509m/min。4）计算基本工时：按查询得机械制造工艺设计简明手册公式计算： T=0.2.6min（2）半精车 90外圆 选择刀具：用刀具1。1）确定背吃刀量 半精车外圆ap=1.4mm。2)确定进给量查询切削用量简明手册表1.6，HT200，刀杆尺寸16 x25，表面粗糙度为6.3，刀尖圆弧半径0.5mm,工件直径为90mm，则f=0.250.40 mm/r。再根据CA6140车床说明书，取横向进给量取f =0.30mm/r，车刀耐用度T=60mm。3)确定切削速度VC根据切削用量简明手册表1.27=103.071m/min=353.719 r/min按CA6140车床转速 选择与353.719r/min相近似的机床转速n =400r/min,则实际切削速度V =116.557 m/min。4)计算基本工时：T=（L+L1+L2+L3）i/(fn)=0.115min(3) 半精车45 外圆 选择刀具1 1）确定切削深度粗车外圆，一次走刀，则ap=1.4mm。2)确定进给量由查询的切削用量手册，HT200，刀杆尺寸16x 25，ap=1.1,工件直径为45mm，表面粗糙度为6.3，刀尖圆弧半径0.5mm，则f=0.250.40mm/r。再由简明手册表4.23查取f =0.30mm/r。 3)确定切削速度VC根据查询切削用量手册表1.27查取：=103.071 m/min=686.719r/min按车床说明书，选择与686.719r/min相近似的机床转速n =710r/min,则实际切削速度V = 107.457m/min。4)计算基本工时：T=（L+L1+L2+L3）i/(fn) =0.246min。工序 半精车零件左端面，即100左端面1.加工条件机床选择：CA6140车床刀具1：刀片材料YG6，刀杆尺寸BxH=16x25mm， 刀尖圆弧半径0.5mm2.计算切削用量半精车100左端面1)确定背吃刀量a (即切深a ) 半车的余量为0.9mm，一次走刀完成，即a =0.9mm。2)确定进给量查询得出切削用量简明手册表1.6：加工材料：HT200、工件直径：100mm、切削深度：a =0.9mm，表面粗糙度为6.3，刀尖圆弧半径0.5mm，则进给量为0.250.40 mm/r。再根据CA6140车床说明书，取横向进给量取f =0.30mm/r。车刀耐用度T=60mm。3)确定切削速度V 根据切削用量简明手册表1.27=103.071 m/min=316.235 r/min按车床转速（机械制造工艺设计简明手册表4.28）选择与316.235r/min相近似的机床转速n =320r/min,则实际切削速度V = 106.509m/min。4）计算基本工时：按查询得机械制造工艺设计简明手册公式计算：T=1.158min工序 精车100外圆，并倒90，100的倒角1)确定背吃刀量a (即切深a ) 半车的余量为0.5mm，一次走刀完成，即a =0.5mm。2)确定进给量查询得切削用量简明手册表1.6：加工材料HT200、工件直径100mm、切削深度a =0.5mm，表面粗糙度为1.6，刀尖圆弧半径0.5mm，则进给量为0.100.15 mm/r。再根据CA6140车床说明书，取横向进给量取f =0.12mm/r。车刀耐用度T=60mm。3)确定切削速度V 根据切削用量简明手册表1.27=142.020 m/min=452.292 r/min按车床转速（机械制造工艺设计简明手册表4.28）选择与452.292r/min相近似的机床转速n =450r/min,则实际切削速度V = 141.3m/min。4）计算基本工时：按查询得机械制造工艺设计简明手册公式计算：T=0.315min工序精车零件左端面，即100左端面1)确定背吃刀量a (即切深a ) 半车的余量为0.5mm，一次走刀完成，即a =0.5mm。2)确定进给量查询得出切削用量简明手册表1.6：加工材料：HT200、工件直径1：00mm、切削深度：a =0.5mm，表面粗糙度为：1.6，刀尖圆弧半径：0.5mm，则进给量为0.100.15 mm/r。再根据CA6140车床说明书，取横向进给量取f =0.12mm/r。车刀耐用度T=60mm。3)确定切削速度V 根据切削用量简明手册表1.27=142.020 m/min=452.292 r/min按CA6140车床转速（机械制造工艺设计简明手册表4.28）选择与452.292r/min相近似的机床转速n =450r/min,则实际切削速度V = 141.3m/min。4）计算基本工时：通过查询机械制造工艺设计简明手册得公式计算：T=2.00min工序粗铣90左右侧面，精铣90右侧面1. 加工条件：机床的选择：X62W，功率7.5KW，装夹系统刚性好；刀具的选择：铣刀材料为YG6，由ap=8，ae=1121mm，通过查询工艺手册表3.128，铣刀选择为80110mm；通过查询呢切削手册表6-7选择刀具如下：粗铣刀为粗齿圆柱形铣刀，Z=10；精铣刀为细齿圆柱形铣刀，Z=14，圆柱铣刀寿命为180min2.切削用量选择： (1) 粗铣左侧面，粗铣刀具1）切削用量 ap=8，ae=11mm ，一次完成2）确定进给量 通过查询切削手册表3.5当机床功率为5-10KW,采用YG6硬质合金材料加工铸铁取=0.14-0.24mm/z,取=0.24mm/z。3）确定切削速度Vc 通过查询切削手册表3,27=119.619m/min=380.952r/min 根据机床 说明书(见切削手册表4.2-39)取主轴转速n =475r/min.则实际切削速度为Vc =149.15m/min当n =475r/min时,工作台为每分钟进给量是进给速度fm=fzzn机=0.2410475=1140mm/min.X62W机床说明书(见切削手册表3.23)取fm=950mm/min4）计算基本工时 T=(L+L1)/fm=(38+5)/950=0.0453 min(2) 粗铣右侧面，粗铣刀具(1) 粗铣左侧面，粗铣刀具1）切削用量 ap=8，ae=10mm，俩次完成2）确定进给量 通过查询切削手册表3.5当机床X62W功率为5-10KW,采用YG6硬质合金材料加工铸铁取=0.14-0.24mm/z,取=0.24mm/z。3）确定切削速度Vc 通过查询切削手册表3,27=160.952m/min=512.586r/min 根据X61W机床说明书(见切削手册表4.2-39) 取主轴转速n =600r/min.则实际切削速度为Vc =188.4m/min当n =600r/min时,工作台为每分钟进给量是进给速度fm=fzzn机=0.2410600=1440mm/min.X62W机床说明书(见切削手册表3.23)取fm=950mm/min4）计算基本工时 T=(L+L1)/fm=(48.2+5+38)/950=0.096 min（3）精铣右侧面 精铣刀具1）切削用量 ap=8，ae=1mm ，一次完成2）确定进给量 由切削手册表3.5当机床X62W功率为5-10KW,采用YG6硬质合金材料加工铸铁取=0.14-0.24mm/z,取=0.24mm/z。3）确定切削速度Vc 通过查询切削手册表3,27=404.312m/min=1287.618r/min 根据X61W机床说明书(见切削手册表4.2-39)取主轴转速n =1180r/min.则实际切削速度为Vc 370.52m/min当n =1180r/min时,工作台为每分钟进给量是进给速度fm=fzzn机=0.24141180=2832mm/min.X62W机床说明书(见切削手册表3.23)取fm=1180mm/min4）计算基本工时 T=(L+L1)/fm=(48.2+5)/1180=0.0451min工序 钻4-9孔1)刀具选择选用9高速钢,锥柄标准麻花钻。选用Z525型摇臂钻床。2）确定切削用量4个孔共走四次刀。通过查询切削用量手册f=0.470.57mm/r,由钻床取 f =0.40mm/r.通过查询切削用量手册，取V查=0.36m/s=21.6m/min，则n=764.331 r/min由钻床说明书，取n机=850r/min,故 3）计算基本工时： 其中L1=8，L2=0，L=8 4T= 4x0.047min=0.188min 工序(1)钻 4mm孔，铰6mm孔选用Z525型摇臂钻床。1）刀具选择：通过查询工艺手册选用 高速钢锥柄标准花钻。2）确定切削用量：通过查询切削用量手册得出f=0.180.22mm/r,由钻床取f=0.22mm/r.通过查询切削用量手册得出V =0.46m/s=27.6m/min =197r/m由Z525钻床取n =1700r/min.故VC =21m/min.3)基本工时：L1=10，L2=0，L=12.5T= 0.07min(2) 铰 6孔1）刀具选择：6高速钢锥柄机用铰刀，刀具磨钝标准为0.40.6,耐用度T=60min。2）确定切削用量：（a）加工余量为2mm,故背吃刀量asp=1mm。通过查询切削用量手册则f=0.270.33mm/r，通过查询工艺手册得f=0.26mm/r。(b)确定切削速度：计算切削速度 ，其中KV=1，CV=15.6,ZV=0.2,XV=0.1,YV=0.5,m=0.3V = 0.21m/s=12.8m/minn = 679r/min取n =670V =8.415 m/min3）基本工时： 其中L1=10，L2=2，L=7 T= 0.109min工序 磨削90外圆以及零件右端45外圆 选择砂轮：WA46KV6P350x40x12切削用量的选择。砂轮转速n砂=1500 r/min，v砂=27.5m/s轴向进给量fa=0.5B=20mm工件速度Vw=10m/min径向进给量fr=0.015mm/（双行程）切削工时。加工90外圆 =0.819min加工45外圆=1.606min工序 抛光B面工序 刻线、刻字工序XIV 镀铬工序XV 检测入库二、零件的编程与加工1、程序编制1、编程软件此次编程所采用的软件是UG。UG（Unigraphics NX）是Siemens PLM Software公司研发的一个产品工程解决方案，为用户的产品设计和加工过程提供了数字化造型和验证手段。Unigraphics NX针对用户的虚拟产品设计和工艺设计的需求，提供了经过实践验证的解决方案。UG同时也是用户指南（user guide）和普遍语法（Universal Grammar）的缩写。2、 程序内容%O1001N10 G98 G18N11 G21N12 G50 S600N13 G28 U0.(4)N14 T0101N15 G54N16 M8N17 G98N18 G97 S300 M3N19 G0 X125. 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