2011数控卒业论文模板.doc

2011数控毕业论文模板 doc文档可能在WAP端浏览体验不佳。建议您优先选择TXT，或下载源文件到本机查看。 河南工业贸易职业学院 2011 届毕业论文 摘 要 世界制造业转移，中国正在逐步成为世界加工厂。美国、德国、韩国等国家已经进 入工业化发展的高技术密集时代与微电子时代，钢铁、机械、化工等重工业正逐渐向发 展中国家转移。我国目前经济发展已经过了发展初期，正处于重化工业发展中期。 未来 10 年将是中国机械行业发展最佳时期。美国、德国的重化工业发展期延续了 18 年以上，美国、德国、韩国四国重化工业发展期平均延续了 12 年，我们估计中国的 重化工业发展期将至少延续 10 年，直到 2015 年。因此，在未来 10 年中，随着中国重 化工业进程的推进，中国企业规模、产品技术、质量等都将得到大幅提升，国产机械产 品国际竞争力增强，逐步替代进口，并加速出口。目前，机械行业中部分子行业如船舶、 铁路、集装箱及集装箱起重机制造等已经受益于国际间的产业转移，并将持续受益；电 站设备、工程机械、床等将受益于产业转移，加快出口进程 关键词 : 数控 工业化发展 刀具 机床 1 / 15 河南工业贸易职业学院 2011 届毕业论文 目 第一章 数控机床的产生 第二章 数控机床的发展 录 2.1 数控系统的发展 ··············································································· 1 2.2 机床的发展趋势 ··············································································· 2 第三章 数控机床的分类 按加工工艺方法分类 3.1 按加工工艺方法分类 ······································································· 4 3.1.1 金属切削类数控机床 ························································································ 4 3.1.2 特种加工类数控机床 ························································································ 4 3.1.3 板材加工类数控机床 ························································································ 4 3.2 按控制运动轨迹分类 ······································································· 5 3.1.2 点位控制数控机床 ····························································································· 5 3.2.2 直线控制数控机床 ····························································································· 5 3.2.3 轮廓控制数控机床 ····························································································· 5 3.3 按驱动装置的特点分类 ··································································· 6 3.3.1 开环控制数控机床 ····························································································· 6 3.3.2 闭环控制数控机床 ····························································································· 7 3.3.3 半闭环控制数控机床 ·····················