数控技术毕业设计 典型盘类零件加工.doc

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1、天津轻工职业技术学院毕业设计题目名称：典型盘类零件加工系部：机械工程系专业/班级：姓名：指导教师：时间：2013年2月5日目录摘要·································································3前言·································································3一、分析加工对象···························································41.1设备选择

2、·························································41.2刀具的选择·······················································41.3定位基准零件及夹具的校正·········································51.4尺寸精度要求·····················································51.5形状和位置精度的要求···················

3、··························51.6表面粗糙度要求···················································51.7装夹方式要求······················································5二、工艺过程卡/加工工序卡···············································52.1工艺过程·····················································

4、····52.2切削用量的确定···················································62.3编制工艺过程卡···················································62.4编制加工工序卡···················································7三、零件实体图形及程序···················································103.1零件实体图及零件图样······

5、·······································103.2零件加工程序·····················································10四、总结·································································13五、参考文献·····························································13摘要用数控铣床完成零件的加工，毛坯外形尺寸为72m×m72

6、mm×19mm，材料选择尼龙块。按要求完成零件节点、基点计算，设定工件坐标系，制定正确的工艺方案（包括定位、夹紧方案和工艺路线），选择合理的刀具和切削工艺参数，编写数控加工程序，按尺寸精度和表面粗糙度值要求加工出零件。一方面在正确分析零件工艺性的基础上，参考了一些相关资料，以CAXA绘图软件完成零件造型，数控铣床加工工艺的设计和数控加工中心的操作方式及过程，此过程包括零件的实体造型、数控加工工艺设计的基本内容、材料的选择、节点基点的计算、工件坐标系的选择、刀具的选择、参数的选择等因素。同时，还要根据要求制定正确的工艺方案（包括定位、夹紧方案和

7、工艺路线），编写数控加工程序，按零件要求的尺寸和精度来完成加工操作；另一方面就是我们在保证正确加工出产品的同时还应满足其工艺要求，不仅要把产品做出来，还要保证其工艺要求达到标准。关键词：数控铣床刀具选择定义毛坯前言毕业设计是我们大学学习生活的很重要的一部分，是我们在校学习的最后的一个环节，是评价我们是否是一个合格大学生的一个很重要标准，因此在做毕业设计时，我都怀着很重视的态度去做的。在刚接到要做毕业设计的任务，我一下子感到无从下手，有点迷茫，由于从没有做过这样的设计，经过几天的查找资料，我发现数控加工是机械行业一门新的专业，数控技术是数字程序

8、控制数控机械实现自动工作、柔性化、集成化生产的基础。它广泛用于机械制造和自动化领域，较好地解决多品种、小批量和复杂零件加工以及生产过程自动化问题。随着计算机、自动控