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本 科 生 毕 业 论 文（设 计）
题 目： 车床支架机械加工工艺及夹具设计
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内容摘要
页眉为论文题目（小五，黑体，居中）阅后删除此文本框。 在机械制造批量生产中根据加工工件的工艺要求，合理地使用夹具是充分发挥通用机床的作用、保证产品质量、缩短辅助时间、提高劳动生产率、降低生产成本、减轻劳动强度的重要手段。同时，使用夹具还有助于工人掌握复杂或精密零件的加工质量及解决较为复杂的工艺问题等，因此，机床夹具在机械制造行业中占有十分重要的地位。
本设计的内容包括： 一、绪论
二、工艺规程设计，包括： 1. 被加工零件的分析； 2. 零件毛坯的选择； 3. 定位基准的选择； 4. 工艺路线的安排； 5. 重点工序加工方法说明； 6. 切削用量的确定；
7. 机动时间的计算和工序时间定额。 三、夹具设计（见详图） 四、总结
五、设计所参考的资料
具体内容，见详细的设计说明书。
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后删除此文本框及内容，按原注1：更新目录前必须对每章节的标题做标题格式定义，阅后删除此文本框。 目 录
注2：在该页面中点击鼠标右键，选择“更新域…”，在弹出窗口中选择“更新整个目录”，确定即可自动生成目录。阅后删除此文本框。 内容摘要 ·········································································································· I 引 言 ············································································································ 1 1 绪论 ············································································································ 2 2 工艺规程设计 ······························································································ 3
2.1年生产量和批量的确定 ········································································· 3 2.2零件分析 ······························································································ 3 2.3毛坯余量和加工余量的确定 ·································································· 4 2.4定位基准的选择： ················································································· 5 2.5工艺方案的确定 ···················································································· 6 2.6工艺路线的拟定 ···················································································· 7 3 夹具设计 ··································································································· 30
3.1 定位基准的选择 ················································································· 31 3.2定位元件选择 ····················································································· 31 3.3 夹紧元件的选择 ················································································· 32 3.4夹紧力的计算 ····················································································· 32 参考文献 ········································································································ 34 附 录 ·········································································································· 35
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引 言
从引言开始是正文的第一页，页码从1开始编排。 注意引言内容不要与摘要内容雷同。
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页码，宋体，五号，居中，底部，正文起始页页码为1。阅后删除此文本框 1 / 38
1 绪论
本次设计的题目是“车床支架机械加工工艺及钻孔夹具设计”。这个题目是传统的机械设计课题，在做这个设计题目过程中，涉及了很多工艺规程设计方面的知识。
本次的设计任务是：制定一给定的零件（车床支架）的机械加工工艺及就加工该零件的某一道工序（钻孔）的夹具设计。
设计内容包括： 毛坯零件综合图一张； 夹具装配图1张； 夹具体图1张； 工序卡的编订、 绘制； 论文1份；
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车床支架机械加工工艺及夹具设计
