1、毕业设计(论文) 1 中介轴承衬套设计说明 毕业设计(论文) 2 内内 容容 摘摘 要要 本设计说明为涡喷-7 甲中介轴承衬套设计说明,主要是工艺及工装设计说明,另外 还包括零件毛坯设计说明、零件功用说明等。 零件材料选用 38CrMoAlA 超高强度钢。零件毛坯为自由锻件。因零件的构形复杂, 性能要求较高,加之材料特殊,因为对零件的工艺要求很严格。工艺规程的设计和 说明包括多方面的内容。最主要的有零件的主要表面及重要技术条件的保证方法; 各表面加工方法的选取;工艺基准的选择;特殊工序和辅助工序位置的安排等。工 装设计为零件上 6 孔的钻具设计,以及 23 个铣槽具设计。主要包括夹紧、定位方
2、案的选择,夹紧机构和定位元件的设计误差分析。 关键词:中介轴承衬套; 铣槽夹具设计; 钻具设计; 工艺规程 毕业设计(论文) 3 Coutent Abstracts This is the design illustration of the medium bearing junk ring in turbojet 7-I,including the illustration of the blank ,the function , the process planning and design of jig ,etc. The ultrahigh and strong steel - 38C
3、rMoAl is chosen as the material of part . The blank is die forging part . Since the structure is complex , the performance requirement is good and the material is special , the technologcial requirements must be rigid . The design of manufacturing process planning for the medium bearing junk ring in
4、cludes the important technological of machining method and technological data use on each surface , the arrange of special processs and assistant process , etc . The design of jig is drilling-model used in cutting the hole 6 and milling grooves . It includes the selection of the grip and fix scheme , the design of the grip and fix parts , the analysis of the tolerance . Keywords: Medium bearing junk ring ; design of drilling jig ; design of milling grooves; manufacturing process planning 毕业设