设计“端盖”零件的机械加工工艺规程及工艺装备【钻10mm孔】.rar

摘要
机械制造工艺学课程设计是我们学完了大学的全部基础课、,也是一次理论联系实际的训练,因此,它在我们四年的大学生活中占有重要的地位。
这次设计的是端盖,有零件图、毛坯图、装配图各一张,机械加工工艺过程卡片和与所设计夹具对应那道工序的工序卡片各一张。首先我们要熟悉零件,题目所给的零件是端盖。了解了端盖的作用,接下来根据零件的性质和零件图上各端面的粗糙度确定毛坯的尺寸和机械加工余量。然后我们再根据定位基准先确定精基准,后确定粗基准,最后拟定端盖的工艺路线图,制定该工件的夹紧方案,画出夹具装配图。
Abstract
Machinery Manufacturing Technology curriculum design is finished we learn all the basic course of the University, technology and the most basic course after the specialized, which is our graduation project before conducting the various courses of study by an in-prehensive review of the total, is also a Theory with practical training, therefore, in our four years of university life occupy an important position.
This is the cover design, parts map, rough map, one of the assembly, machining process with the card and the corresponding fixture designed by the procedures of the process of a card. First of all, we must familiar with the parts, the parts subject to the cover. Cover understanding of the role, followed in accordance with the nature of parts ponents in the face of the map on the roughness of rough determine the size and mechanical Jiagongyuliang. According to another location and then we set the benchmark fine first base, established after the benchmark crude, finalizing the cover of the road map, the enactment of the workpiece clamping programme, to draw fixture assembly.
端盖零件图


1、端盖的工艺分析及生产类型的确定
、端盖的用途
端盖主要用于零件的外部,起密封,阻挡灰尘的作用。故其在机器中只是起辅助作用,对机器的稳定运行影响不是很大,其在具体加工的时候,精度要求也不是很高,加工起来也十分容易。
、端盖的技术要求:
该端盖的各项技术要求如下表所示:
加工表面
尺寸偏差(mm)
公差及精度等级
表面粗糙度(um)
形位公差(mm)
端盖左端面
58
IT13

↗

B
端盖右端面
58
IT13

↗

B
方形端面
115X115
IT13

↗

B
端盖中心孔
φ250+
IT8

φ14孔
φ14
IT10

φ10孔
φ100+
IT9

φ9孔
φ9
IT13

φ4孔
φ4
IT13

φ75外表面
φ75-+
IT9

R33弧
R33
IT13

、审查端盖的工艺性
该端盖结构简单,形状普通,属一般的盘盖类零件。主要加工表面有端盖左、右端面,方形端面,,其次就是φ25孔及φ10孔,φ25