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套筒零件数控加工工艺分析及程序编制 摘要 本设计是套筒零件车削加工这个课题，因为他涉及到的知识面非常广阔，基本将我们在大学里所学知识综合运用起来。它突出了数控加工的特点，零件在加工过程中的工艺性特点。从图纸设计，机床的选择，刀具的选择，工艺分析，零件加工，精度的检测与公差的配合到分析结果的全过程，将理论知识和实际操作紧密联系起来。从图样设计开始到零件加工结束，说明零件加工与设计的基本过程。用数控车床加工克服普通车床加工精度不高难加工，加工时间长等特点，提高加工精度，提高操作安全性。并编制加工工艺卡片，编写出加工程序，最终在数控车床上加工出产品。 关键词：数控车床加工；工艺分析；走刀路线 Abstract With pieces of thread desig
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ne 目录 摘要1 Abstract 2 目录3 绪论5 1零件介绍6 1.1零件的结构特点分析6 1.2零件的技术要求分析6 1.3确定毛坯7 1.3.1毛坯类型7 1.3.2毛坯余量确定8 2加工工艺方案分析9 2.1定位基准的选择9 2.2确定加工方案9 2.3夹具的确定9 2.4刀具的选择11 2.5选择切削用量12 2.5.1背吃刀量的确定12 2.5.2主轴转速的确定12 2.5.3进给量的确定13 2.5.4切削速度的确定13 2.5.5零件切削用量的具体选择13 2.6冷切液的选择14 2.7机床的参数介绍15 3数值计算16 3.1刀位点坐标值计算17 3.1工件坐标系的设定17 4.零件的数控编程18 4.1数控编程的定义及分类19 4.1.1数控编程的定义19 4.1.2数控编程的分类19 4.1.3循环指令格式19 4.2数控加工程序代码的编写20 4.2.1车左端时的加工程序20 4.2.2车右端时的加工程序21 结束语23 致谢23 参考文献24 附录A数控加工工序卡片25 附录B数控刀具明细表27 附录C工件安装和零点设定卡片28