(机械制造课程设计说明书.doc

机械制造技术基础 课程设计说明书 题目 Y轴前轴承座的机械加工工艺规程设计 分院、专业 机械设计制造及其自动化 班级 081412 学生姓名 刘 彤 指导教师 赵艳红 成绩 2010 年 1 月 7 日 沈阳理工大学应用技术学院  目 录 工艺部分·······················································································3 1.1有关零件的结构分析和功用·························································3 1.1.1 零件的功用···········································································3 1.1.2零件的结构分析······································································3 1.2课题（提供的技术资料）····························································4 1.2.1生产纲领···············································································4 1.2.2技术资料···············································································4 1.3毛坯的种类··············································································4 1.3.1确定毛坯的种类······································································4 1.4定位基准的选择原则··································································4 1.4.1粗基准的选择原则···································································4 1.4.2精基准的选择原则···································································5 1.5工艺规程的拟定········································································5 1.5.1制定工艺规程的原则································································5 1.5.2拟定工艺路线·········································································5 1.6机械加工余量 工序尺寸及毛坯尺寸的确定······································6 1.6.1确定加工余量和工序尺寸··························································6 1.6.2确定毛坯尺寸·········································································7 1.7确定切削余量···········································································7 1.7.1确定和计算切削用量································································8 1.8工时定额的确定········································································8 1.8.1计算工时定额····