（通过答辩全套含CAD图纸）泵盖加工工艺及夹具设计.rar

I 江阴职业技术学院毕业设计课题: 泵盖加工工艺及夹具设计专题:专业: 机械制造及自动化学生姓名: 班级: 学号: 指导教师: 完成时间: II 摘要泵盖零件的主要加工表面是平面及孔系。一般来说,保证平面的加工精度要比保证孔系的加工精度容易。因此,本设计遵循先面后孔的原则。并将孔与平面的加工明确划分成粗加工和精加工阶段以保证孔系加工精度。基准选择以泵盖的输入轴和输出轴的支承孔作为粗基准,以底面与两个工艺孔作为精基准。主要加工工序安排是先以支承孔系定位加工出顶平面,再以顶平面与支承孔系定位加工出工艺孔。关键词: 泵盖类零件;工艺;夹具; III ABSTRACT Body parts of the main plane of the surface and pore system. In general, the plane guarantee processing precision than that of holes machining precision easy. Therefore, this design follows the surface after the first hole principle. Plane with holes and the processing clearly divided into roughing and finishing stages of holes to ensure machining accuracy. Datum selection box input shaft and the output shaft of the supporting hole asa rough benchmark, with top with two holes asa precision technology reference. Main processes arrangements to support holes for positioning and processing the top plane, and then the top plane and the supporting hole location hole processing technology. In addition to the follow-up processes individual processes are made of the top plane and technological hole location hole and plane processing. Supported hole processing using the method of coordinate boring. The whole process of processing binations were selected. Selection of special fixture fixture, clamping means more choice of pneumatic clamping, clamping reliable, institutions can not be locked, so the production efficiency is high, suitable for large batch, line processing, can meet the design requirements. Key words: Angle gear seat parts; fixture; IV 目录摘要···································································································· II ABSTRACT ···························································································· III 第一章加工工艺规程设计··········································································· 1 零件的分析·········································································································· 1 零件的作用·························