减速型起动机端盖的加工工艺及夹具的设计

文档编号:JX736  文档字数:14836.页数:40   附CAD图

摘      要
  在生产过程中，使生产对象（原材料，毛坯，零件或总成等）的质和量的状态发生直接变化的过程叫工艺过程，如毛坯制造，机械加工，热处理，装配等都称之为工艺过程。在制定工艺过程中，要确定各工序的安装工位和该工序需要的工步，加工该工序的机车及机床的进给量，切削深度，主轴转速和切削速度，该工序的夹具，刀具及量具，还有走刀次数和走刀长度，最后计算该工序的基本时间，辅助时间和工作地服务时间。
 数控技术及数控机床在当今机械制造业中的重要地位和巨大效益，显示了其在国家基础工业现代化中的战略性作用，并已成为传统机械制造工业提升改造和实现自动化、柔性化、集成化生产的重要手段和标志。数控技术及数控机床的广泛应用，给机械制造业的产业结构、产品种类和档次以及生产方式带来了革命性的变化。数控机床是现代加工车间最重要的装备。它的发展是信息技术(IT)与制造技术(MT)结合发展的结果。现代的CAD/CAM、FMS、CIMS、敏捷制造和智能制造技术，都是建立在数控技术之上的。掌握现代数控技术知识是现代机电类专业学生必不可少的.并通过一定的实例详细的介绍了数控加工工艺的分析方法关键词：工序 工位 数控技术 加工余量 定位方案 夹紧力

Slow start-based cover of machine and its fixture design process
Abstrac
   Enable producing the target in process of production (raw materials, the blank , state of quality and quantity on part become always ) take place direct course of change ask craft course, if the blank is made, machining, heat treatment , assemble etc. and call it the craft course. In the course of making the craft , is it confirm every erector location and worker step that process need this of process to want, the locomotive of processing , this process , and the entering the giving amount of the lathe, cut depth , the rotational speed of the main shaft and speed of cutting, the jig of this process, the cutter and measuring tool, a one hundred sheets of number of times still leaves and a one hundred sheets of length leaves, calculate basic time of this process , auxiliary time and service time of place of working finally.   NC and NC machine tool technology in today's machine manufacturing industry in an important position and great benefits that its national infrastructure in the industrial modernization of the strategic role and has become a traditional machinery manufacturing industries to transform and enhance automation, flexible, Integrated production and an important means of signs. NC technology and the widespread application of NC machine tools, machinery manufacturing to the industrial structure, product variety and quality and production methods brought about a revolutionary change. NC machine tool processing workshop is the most important modern equipment. It is the development of information technology (IT) and manufacturing technology (MT) with the result of the development. Modern CAD / CAM, FMS, CIMS, agile manufacturing and intelligent manufacturing technology, are built on the technology in the NC. NC master modern technology of modern machinery and electronic knowledge is essential to professional students.
Keyword:    The process  worker one  NC programming technology processing technology  the surplus of processing  orient the scheme   clamp strength

目   录
中文摘要...........................................................i
英文摘要...........................................................ii
目录..............................................................iii
 绪论.........................................................1
 1.1我国汽车制造现状..............................................1
 1.2国外先进机械加工技术方向.......................................1
 1.3汽车零部件机械加工技术和设备的特征............................1
 1.4结束语........................................................4
第二章 零件的工艺分析...............................................5
  2.1零件的结构分析................................................5
  2.2零件的技术要求分析............................................7
 第三章 工艺规程的制定.............................................9
  3.1毛坯的选择....................................................9
  3.2定位基准的选择................................................9
  3.3工艺路线的拟定...............................................10
  3.4加工余量、工序尺寸及毛坯尺寸的确定............................15
  3.5确定切削用量及基本用时.......................................20
第四章 夹具的设计..................................................26
  4.1中盖的夹具设计................................................26
  4.2前盖的夹具设计...............................................27
  4.3孔的夹具的设计...............................................28
第五章 结论.......................................................31
参考文献..........................................................32
毕业设计总结......................................................34
致谢..............................................................36
附录

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