主轴制造工艺编制-毕业设计说明书.docx
《主轴制造工艺编制-毕业设计说明书.docx》由会员分享,可在线阅读,更多相关《主轴制造工艺编制-毕业设计说明书.docx(55页珍藏版)》请在得力文库 - 分享文档赚钱的网站上搜索。
1、毕业设计(论文)类 型:毕业设计说明书 毕业论文题 目:主轴制造工艺编制指导教师: 学生姓名: 专 业:数控技术班 级:数控121学 号: 时 间:2015年4月 摘要轴类零件是一种常用的典型零件,主要用于支承齿轮、带轮等传动零件及运动和扭矩,故其结构组成中具有许多外圆、轴肩、螺纹、螺尾退刀槽、砂轮越程槽和键槽。外圆用于安装轴承、齿轮、带轮等;轴肩用于轴上零件和轴本身的轴向定位;螺纹用于安装各种锁紧螺母和高速螺母;螺尾退刀槽供加工螺纹时退刀用;砂轮越程则是为了能完整地磨削出外圆和端面等;键槽用来安装键,以传递扭矩。轴类零件按其结构特点可分为简单轴、阶梯轴、空心轴和异型轴4大类。轴通常是其轴颈支
2、承在机器的支架或箱体上,实现运动和动力的传递。根据其功用及工作条件,轴类零件的技术要求通常包括以下几个方面。(1) 尺寸精度和形状精度。轴类零件的尺寸精度主要指轴的直径尺寸精度。轴上直径支承轴径和配合轴径(装配传动件的轴径)的尺寸精度和形状精度是轴的主要之一,它讲影响轴的回转精度和配合精度。(2) 位置精度。为保证轴上转动件的传动精度,必须规定支承轴颈与配合轴径的位置精度。通常以配合轴颈的径向圆跳动或同轴度来保证。(3)表面粗糙度。轴上的表面以支承轴颈的表面质量要求最高,其次是配合轴颈或工作表面。这是保证轴与轴承以上轴与轴上传动件正确可靠配合的重要影响。在生产实际中,轴颈的尺寸精度通常为IT6
3、IT9,精密的轴颈可达IT5;一般轴的形状精度应控制在直径公差范围之内;精密轴颈的形状精度应控制在直径公差的1/51/2之内。表面粗槽度Ra值,支持颈,支撑轴颈一般为0.630.16,配合轴颈一般为2.50.63;配合轴颈对支承轴颈径向圆跳动一般为0.010.03,高精度轴0.0010.005。AbstractShaft partsis a typical partsin common use,mainly used to support thegear,pulleyand othertransmission partsand motionand torque,so thestructureh
4、asmanyouter circle,shoulder,screw,screw tailslot,grinding wheel grooveand keyways.The outer circlefor the installation ofbearings,gears,pulleys;shoulderforparts on the shaftandshaftaxial positioningitself;the threadfor the installation of variouslock nut andhigh speednuts;screw tailslotforprocessing
5、 threadcutter;grinding wheelis in order tocompletethe outer circle andend facegrinding;keyused to install thekeyto transfer torque.Shaft partsaccording to its structurecharacteristics can be divided into thesimpleshaft,shaft,hollow shaft andshaftshaped4 categories.The shaftis usuallytheshaftis suppo
6、rted on the bracketor boxmachine,realize the transmission of motion and power.According toits functionand working conditions,requirementsof shaft partsgenerallyinclude the following.(1)the dimensional accuracyandshape accuracy.The dimensional accuracyof shaft partsmainly refers to thediameter sizepr
7、ecision of shaft.The shaftdiameter ofsupportingshaftand shaft(assemblydriveshaft diameter)of thedimensional accuracy and shape accuracyisone of the mainshaft,theeffect ofshaftrotating accuracy andfitting accuracy.(2)the position precision.As thetransmissionprecisionshaftrotating parts,must specify t
8、hebearing neckshaftsizeandposition precision.Circular runoutorcoaxialto ensure thatusually inradial fitshaft neck.(3)surface roughness.Surface of the shafton thesurface quality ofcrankshaft bearingrequirementsthe highest,followed by theshaftneck orworking surface.Thisis to ensure thatthe shaft and t
9、he bearingshaft and shaftdriveamorecorrect and reliablewithimportant influence.In the actual production,the sizeprecision of the shaft neckis usually IT6IT9,the precision of theshaft neckup to IT5;shapeprecisionshaftshould be controlledwithinthe diameter tolerance;shapeprecisionshaftshould becontrol
10、led withinthe diameter tolerance of1/51/2.Surface roughdegree Ra valueof carotidgroove,support,support shaftneckis generally 0.630.16,with theshaftis 2.50.63;with theshaft neckofcrankshaft bearingradial runoutis generally 0.010.03,high precisionshaft 0.0010.005.前言本设计是根据机械制造工艺学课程所有教材和参考书及数控车床及编程加工技术来
11、进行主轴制造工艺设计的。本次设计的主轴的制造工艺包括外圆的加工、孔的加工、锥孔的加工、内螺纹的加工、外螺纹的加工以及键槽的加工。主轴的制造工艺的制定要综合考虑各方面的因素,其中最主要的是以下两个方面:一:工艺路线的制定要确保(形状精度、位置精度、尺寸精度以及表面粗糙度);二:工艺路线的制定要保证零件的生产率。在确保主轴精度的前提下为了保证零件的生产率,本次设计采用先进制造方法方法与传统制造方法先相结合来制定工艺路线。以下是本次设计主轴的大概内容:1. 主轴的外圆的加工包括外圆表面的加工、槽的加工以及螺纹的加工,根据要求和结合主轴外圆的结构特点,采用数控机床即可满足对主轴外圆的加工。采用数控编程
12、加工即可以确保主轴的精度要求,又可以保证生产率。2. 主轴的孔、锥孔、键槽以及内螺纹的加工较为复杂,故根据要求及主轴的特点采用传统的制造方法。通过分析论证及必要的计算,以此来选择合适的制造工艺路线。本次设计由陈振玉老师以及其他多为老师的指导。由于本次设计的编者水平有限,故在主轴设计中难免有不足之处,还望各位老师提出宝贵的意见。PrefaceThis design is all according to the mechanical manufacturing technology curriculum textbooks and reference books and the CNC lath
13、e processing technology and programming design for spindle manufacturing process. The design of spindle manufacturing process including cylindrical hole processing, the processing, the taper hole processing, the internal thread processing, the external thread machining as well as the key way. Spindl
14、e manufacturing technology formulation to consider various factors, one of the most important are the following two aspects: one: the craft route formulation to ensure (shape accuracy, position accuracy, dimensional accuracy and surface roughness); Two: the craft route formulation to ensure that the
15、 components of the productivity.On the premise of to ensure the accuracy of spindle parts to ensure productivity, and the design method of the use of advanced manufacturing methods and the traditional manufacturing method first to make the combination of process route. The following is the design of
16、 spindle probably content:1. The main shaft of the cylindrical processing including machining, groove on the surface of the cylindrical and thread processing, according to the requirements and with the structure characteristics of a cylindrical shaft, using nc machine tool can meet the machining of
17、cylindrical shaft. Using the numerical control programming can ensure the precision of the spindle, and can ensure productivity.2. The spindle hole and cone hole, slotting, and internal thread processing is relatively complex, so according to the requirements and the characteristics of the spindle w
18、ith traditional manufacturing methods. Through analysis and necessary calculation, in order to choose appropriate manufacturing process route.The design for the teachers guidance by Chen Zhenyu teacher and other more.Due to the design editor level is limited, so the hard to avoid in the design of sp
19、indle has shortcomings, still hope teachers put forward valuable opinion.目录一零件的工艺分析及生产类型的确定11.零件的作用12.零件的工艺分析1二选择毛坯,确定毛坯尺寸,设计毛坯图11.选择毛坯12.确定机械加工余量,毛坯尺寸和公差1三选择加工方法,制定工艺路线21.定位基准的选择22.零件加工方法的选择23.制定加工工艺路线3四工序设计41.选择加工设备与工艺设备4:选择机床4:选择夹具4:选择刀具5:选择量具52.确定工序尺寸6五确定切削用量及基本时间71.工序一切削用量及基本时间的确定72.工序二切削用量及基本时
20、间的确定73.工序三切削用量及基本时间的确定84.工序四切削用量及基本时间的确定95.工序五切削用量及基本时间的确定196.工序六切削用量及基本时间的确定257.工序七切削用量及基本时间的确定288.工序八切削用量及基本时间的确定319.工序九切削用量及基本时间的确定3310.工序十切削用量及基本时间的确定34六数控加工程序35七.总结41八附录42九参考文献43I一零件的工艺分析及生产类型的确定1.零件的作用机床主轴的作用是从发动机或电动机接受动力并将动力传给其它机件,从而实现机械加工。轴类零件是一种常用的典型零件,主要用于支承齿轮、带轮等传动零件及运动和扭矩,故其结构组成中具有许多外圆、轴
21、肩、螺纹、螺尾退刀槽、砂轮越程槽和键槽。外圆用于安装轴承、齿轮、带轮等;轴肩用于轴上零件和轴本身的轴向定位;螺纹用于安装各种锁紧螺母和高速螺母;螺尾退刀槽供加工螺纹时退刀用;砂轮越程则是为了能完整地磨削出外圆和端面等;键槽用来安装键,以传递扭矩。2.零件的工艺分析通过对该零件图的重新绘制,知原图样的试图正确,完整,尺寸,公差及技术要求齐全。通过对零件图纸的分析,零件的精度要求较高。端面部分用来安装刀具,为了保证加工零件的精度,故位置精度、尺寸精度与表面粗糙度要求较高。主轴的外圆部分主要与传动机构相连,用来接收动力。故位置精度与表面粗糙度较高。其中主轴端面上有内螺纹,用来与其他结构相连来固定主轴
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 主轴 制造 工艺 编制 毕业设计 说明书
限制150内