机械制造工艺学课程设计张紧轮支架.pdf

机械制造工艺学课程设

计张紧轮支架

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机械制造工艺学课程设计

课程设计说明书

设计题目：设计张紧轮支架的机械加工工艺规程

学生姓名：xxx、xxx

学号：1040xx003xx

班级：机工1004班

指导老师：xxx

完成日期：2012-12-22

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目录

机械制造工艺学课程设计任务书

课程设计说明书

0序言···························4

1零件的分析·······················5

1.1零件的作用·····················5

1.2零件的工艺分析···················5

2零件的生产类型······················5

2.1生产纲领······················5

2.2生产类型······················6

3毛坯的确定························6

3.1确定毛坯类型及其制造方法··············6

3.2估算毛坯加工的机械加工余量·············6

4定位基准选择······················6

4.1选择精基准·····················6

4.2选择粗基准·····················6

5制定机械加工工艺路线···················6

5.1选择加工方法····················6

5.2加工工艺路线····················7

6加工余量及尺寸的确定····················8

6.1确定粗加工支架上端面的加工余量及工序尺寸······8

6.2确定支架底面的加工余量及工序尺寸··········9

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6.3确定精加工支架上端面的加工余量及工序尺寸······11

6.4确定支架右侧面的加工余量及工序尺寸·········12

6.5确定支架右侧面φ18孔的加工余量及工序尺寸······13

6.6确定支架下端面的加工余量及工序尺寸·········15

6.7确定支架小侧面的加工余量及工序尺寸·········17

6.8确定支架2*φ13孔的加工余量及工序尺寸········17

7切削用量和时间定额的确定················19

8课程设计总结······················21

参考文献·························22

附1张紧轮支架零件图

附2毛坯图

附3机械加工工艺过程综合卡片

附4夹具零件图

附5夹具装配图

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