轴类零件D的数控加工工艺及程序编制.docVIP

四川理工学院成人教育学院 毕业设计(论文) 题 目 轴类零件D003的数控加工工艺及程序编制 教学点 四川理工学院教育学院 专 业 数控 年 级 数控九班 姓 名 陈勇强 导 师 孙祥国 定稿日期： 2012-7-20 摘 要 近年来，随着科学技术的迅速发展，机械产品的形状、结构和材料不断地改进，精度不断地提高，这就要求机床设备具有较好的通用性和较大的灵活性，以适应生产对象频繁变化的需要，因此对加工机械产品零件部件的生产设备——机床也相应地提出了高性能、高精度与高自动化的要求。数控机床就是在这种条件下发展起来的一种适用于高精度、零件形状复杂的单件、小批量生产的自动化机床。数控机床是一种用计算机组成的计算机装置控制的、高效的自动化机床，它综合应用了自动控制技术、精度测量技术、液压传动和机床结构等方面的必威体育精装版成就。由于它的出现，机床自动化进入了一个新的阶段。自从1952年第一台数控机床问世到现在，数控技术的发展非常迅速，几乎所有品种的机床都实现了数控化。数控机床的应用领域已十分广泛。此外，数控技术也在绘图机械、坐标测量机、激光与火焰切割机等其他机械设备中得到广泛的应用。数控机床已经成为组成现代机械制造生产系统，实现设计（CAD）、制造（CAM）、检验（CAT）与生产管理等全部生产过程自动化的基本设备。 本文设计的是轴类零件CDG-A005的数控加工工艺及程序编制，其中涉及了轴类零件加工中机床设备、刀具、量具、毛坯、定位基准等的选择。设计内容为：绘制零件图一份；数控加工工序卡一份；走刀路线图一份。 关键词：数控机床，数控加工工艺，数控编程，走刀路线 目 录 摘要······················································2 第一章 绪论······················································6 1.1 课题背景及意义··················································6 1.2 课题任务······················································· 7 第二章 数控车床··················································· 8 2.1数控机床的概论··················································8 2.2数控机床的组成··················································8 2.2.1加工程序载体···················································8 2.2.2数控装置·······················································9 2.2.3伺服系统和测量反馈系．数控机床的辅助装置 4.3数控机床加工工序和加工路线的设计································17 4.4数控机床加工路线················································17 4.5工件的定位与夹紧方案的确定······································18 4.6切削用量的选择? 4.7对刀点和换刀点的选择············································22 4.8零件CDG-A005的工艺分析和走刀路线·······························23 第五章 设计总结····················································25 5.1总结····························································25 5.2数控加工的发展趋势··············································25 参 考 文 献····································