连杆零件机械加工工艺规程成及工艺装备研发设计.doc

此套设计有全套CAD图和卡片，有意者请联系我索取522192623@ Abstract The curriculum design detail of the connecting rod slot dedicated 10mm Face milling fixture design, using a two-pin position, through a comprehensive analysis and design, design verification of the feasibility and advantages of this design, the realization of the theoretical knowledge and practice are fully integrated in the curriculum design involves the choice of the machine tool type, processing, selection, tool selection, location analysis and calculation error, the folder should be noted that the specific design problems, and so on. Add further experience in computer graphics. Integrated design of the whole process of design experience to the confused and difficult road, as school finished, the basis of mechanical manufacturing technology after the practice of an important and fully independent of our study design, computing, graphics and analysis capabilities, particularly to improve our access to a variety of design manuals and related information on the capacity of the fixture design should have realized the general steps and related solutions to the problems for the future work, familiar with the process to lay a solid foundation. 目 录 1 连杆零件的机械加工工艺规程 1 1.1 连杆的工艺性分析及生产类型的确定 1 1.1.1 连杆的技术要求 1 1.1.2 审查连杆的工艺性 1 1.1.3 确定连杆的生产类型 1 1.2 机械加工工艺规程设计 2 1.2.1 选择毛坯 2 1.2.2 确定毛坯的尺寸公差和机械加工余量 2 1.2.3 绘制连杆毛坯简图 3 1.3 拟定连杆工艺路线 4 1.3.1 定位基准的选择 4 1.3.2 表面加工方法的确定 4 1.3.3 加工阶段的划分 4 1.3.4 工序的集中与分散 4 1.3.5 工序顺序的安排 5 1.3.6 确定工艺路线 5 1.4加工余量、工序尺寸和公差的确定（工序6） 5 1.5 切削用量、时间定额的计算（工序6） 6 1.5.1切削用量的计算 6 1.5.2 时间定额的计算 7 2. 相关工序夹具的设计 8 2.1 定位方案及定位误差分析 8 2.2 夹紧机构 9 2.3 对刀及夹具的安装方案的确定 9 2.4 夹具体 10 2.5 方案综合评价和总结 10 3 设计体会 11 1 连杆零件的机械加工工艺规程 1.1 连杆的工艺性分析及生产类型的确定 1.1.1 连杆的技术要求 根据连杆零件图纸将该连杆的全部技术要求列于表中。见表1-1。 表1-1 连杆零件技术要求表 加工表面 尺寸及偏差（mm） 公差及精度等级 表面粗糙度Ra(um) 形位公差 连杆左端面 IT11 3.2 连杆右端面 IT11 3.2 孔 IT11 3.2 孔 IT10 3.2 连杆槽宽度 IT13 3.2 连杆槽深度 IT15 3.2 1.1.2 审查连杆的工艺性 分析零件图可知，连杆的两端面均要求切削加工，该零件除主要工作表面（连杆两端面、的槽、孔、孔）外其余加工表面加工精度较低，通过铣削，钻床的粗加工就可以达