机械5

典型轴零件数控车削加工工艺与编程 摘要 数控车床是现代加工车间里面重要的加工设备，现代的CAD/CAM都是建立在数控技术之上的。现代数控加工技术知识是现代机械专业学生必需掌握的。在数控加工过程中，要考虑到零件加工工艺路线的安排、加工机床型号的选择、切削刀具的选择、零件加工的定位装夹及数控程序的编制等一系列因素的影响。所涉及到的知识面非常广阔，基本将我们在大学三年里所学知识综合运用起来了所以通过这次设计不仅是一次对我们大学三年来的知识的运用，也是对我们的考验。 本次设计内容为轴类零件数控加工工艺及编程加工。具体介绍了数控车床加工的特点、加工工艺分析以及数控编程加工过程，以及夹具的确定等等。 关键词：数控车床；数控编程；数控加工工艺 Abstract The importa
nt status?of CNC lathe?tech
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n CAD/CAM?is based?o
n tech
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nowledge to master moder
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ng process,?from the?qualified parts?desig
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not o
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nsider the?positio
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nt,?machi
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ni
ng of?programmi
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newhat is?key tech
nology of parts,?which?is the difficultyof NC machi
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ng?programmi
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nd?the degree of difficulty. Keywords:CNC lathe,NC programmi
ng,The NC machi
ni
ng process 目录 摘要I Abstract II 目录III 绪论1 1零件介绍2 2加工工艺方案分析3 2.1定位基准的选择3 2.2加工走刀路线的拟定4 2.3确定加工方案8 3加工程序的编制9 4.加工准备10 4.1毛坯的确定10 4.2加工设备的选择10 4.3夹具的确定12 4.4刀具的选择13 4.5选择切削用量14 4.5.1背吃刀量的确定14 4.5.2主轴转速的确定14 4.6量具的选择15 5数控加工工艺卡片的拟定16 6.零件的加工17 6.1工件安装17 6.2刀具装夹17 6.3回机床原点18 6.4对刀18 6.5建立工作坐标系19 6.7自动运行20 致谢21 参考文献22 附录A程序单23 附录B工艺工序卡26