ZQ350型减速机机体加工工艺及铣机__毕业设计说明书
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- ZQ350型减速机机体加工工艺及铣机__毕业设计说明书ABSTRACT
The title of graduation project is "the design of ZQ350 reducer body of technological procedure and assembly technology clamp "there are two main tasks: The first is the design of technological procedure of box parts ,and the second is the design of assembly technology clamp of box parts .During the design of technological procedure, the first step is to analysis the parts according to production program, materials of parts and the other requirements ,and to determine the manufacture form of rough;the followed is to select rough and precise in accordance with the principles of reference, then deciding the process routes ,and detetmining the final programme by the Integrated Comparison and analysis ; the final is to determine mechanical allowance, process dimension, blank dimensions, cutting parameters and the basic working hours. In the design of part of assembly technology clamp, the first is the determination of location programme,choosing location reference reasonably and analysising error in accordance with the characteristics of every process. if the location reference does not coincide with design reference , we must work out the dimension chain;the followed is the calculation of the cutting force by the characteristics of the processing .considering all the factors ,we will design the clamping programmes reasonably and calculate the clamping force, and design the clamp finally. Key words: reducer; technological procedure; assembly technology clamp
目 录
摘 要 I
ABSTRACT Ⅱ
绪 论 3
1 零件的分析 4
1.1零件的作用分析 4
1.2零件的工艺分析 4
1.2.1 以结合面为主的加工面 4
1.2.2 以机体底面为主的加工面 4
1.2.3 以轴承座两端面为主的加工面 4
2 工艺规程设计 5
2.1确定毛坯的制造形式 5
2.2基准面的选择 5
2.2.1粗基准的选择 5
2.2.2精基准的选择 5
2.3制定工艺路线 6
2.4机械加工余量、工序尺寸及毛坯尺寸的确定 8
2.4.1结合面的尺寸公差及加工余量 9
2.4.2机体下底面的尺寸公差及加工余量 9
2.4.3机盖上平面的尺寸公差及加工余量 9
2.4.4放油孔端面的尺寸公差及加工余量 9
2.4.5孔的尺寸公差及加工余量 9
2.4.6轴承孔端面的尺寸公差及加工余量 10
2.4.7ф110轴承孔的尺寸公差及加工余量 10
2.4.8ф150轴承孔的尺寸公差及加工余量 10
2. 5 确定切削用量及基本工时 10
2.5.1 工序Ⅰ 粗铣机盖上平面 10
2.5.2 工序Ⅱ 铣机盖结合面 12
2.5.3 工序Ⅲ 钻结合面的孔 16
2.5.4 工序Ⅳ 锪平沉头孔 18
2.5.5 工序Ⅴ 钻孔、钻攻孔 19
2.5.6 工序Ⅰ 粗铣机体下底面 22
2.5.7 工序Ⅱ 粗铣机体结合面 23
2.5.8 工序Ⅲ 精铣机体下底面 23
2.5.9 工序Ⅳ 半、精铣机体结合面 23
2.5.10 工序Ⅴ 钻2—20地脚螺栓孔并锪两沉头孔 29
2.5.11 工序Ⅵ 钻扩铰另外2地脚螺栓孔 31
2.5.12 工序Ⅶ 锪沉头孔 35
2.5.13 工序Ⅷ 钻结合面的孔 35
2.5.14 工序Ⅸ 锪沉头孔 37
2.5.15 工序Ⅹ 钻放油孔底孔 38
2.5.16 工序Ⅰ 钻铰锥孔。 40
2.5.17 工序Ⅱ 粗铣各轴承孔端面至尺寸 42
2.5.18 工序Ⅲ 粗镗各轴承孔 43
2.5.19 工序Ⅳ 半精镗各轴承孔 45
2.5.20 工序Ⅴ 镗轴承孔内槽 47
2.5.21 工序Ⅵ 精镗各轴承孔 48
3 铣床夹具设计 51
3.1问题的提出 51
3.2夹具设计 51
3.3切削力的计算与夹紧力分析 51
4 加工孔夹具设计 53
4.1加工孔夹具设计 53
4.2定位方案的分析和定位基准的选择 53
4.3定位误差分析 53
4.4切削力的计算与夹紧力分析 53
4.5钻套、衬套、钻模板及夹具体设计 54
参考文献 56
总 结 57
致 谢 58
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