车床拨叉（831003）零件的机械加工工艺规程.rar
车床拨叉（831003）零件的机械加工工艺规程,资源标准word格式排版 12页 附夹具体装配图.bak 夹具体装配图(标注).exb 夹具体零件图.exb 拨叉毛坯图.exb 拨叉零件.exb摘 要机械制造技术基础课程设计是我们在学完了大学的全部基础课、专业基础课以及专业课后进行的。这是我们在进行毕业设计之前对所学的各科课程一次深入的综合性总复习，也是一次理论联系...
该文档为压缩文件,包含的文件列表如下:
内容介绍
原文档由会员 莎士比亚 发布
资源标准WORD格式排版 12页 附夹具体装配图.bak 夹具体装配图(标注).exb 夹具体零件图.exb 拨叉毛坯图.exb 拨叉零件.exb
摘 要
机械制造技术基础课程设计是我们在学完了大学的全部基础课、专业基础课以及专业课后进行的。这是我们在进行毕业设计之前对所学的各科课程一次深入的综合性总复习，也是一次理论联系实际的训练。因此，他在我们的大学四年生活中占有重要的地位。
我这次设计的是拨叉831003，有零件图、毛坯图、夹具装配图、夹具零件图各一张，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，题目所给的零件是拨叉831003。了解了拨叉的作用，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，最后拟定拨叉的工艺路线图，制定该工件的夹紧方案，画出夹具装配图。
就我个人而言，我希望通过这次课程设计对自己未来将从事的工作进一步适应性的训练，希望自己在设计中能锻炼自己的分析问题、解决问题、查资料的能力 ，为以后的工作打下良好的基础。
由于能力有限，设计尚有很多不足之处，希望各位老师给予指导。
Abstract
Machinofacture technology curriculum design is that we mimic all basic courses , technology basic course and major part having completed university being in progress after the specialized course. This is that we always review before the graduation practice being in progress to what be learned every thorough comprehensiveness of course,be also that a theory contacts actual training , it occupies important position therefore, in our university for four years life.
My design is Bocha 831,003, part map, rough map, fixture assembly, a fixture parts of the map. 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, subject to the parts is Bocha 831,003. Bocha understanding of the role, followed in accordance with the nature of parts and components 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, Bocha finalizing the road map process, the enactment of the workpiece clamping programme, to draw fixture assembly.
For me personally, I hope that through the curriculum design of their future will be further engaged in the work of adaptive training, in the hope that their design can exercise their own analysis, problem solving, the ability to search information, the work laid for the future A good foundation.
Because of limited capacity, there are a lot of design deficiencies, I hope that teachers give guidance.
目 录
1.零件的工艺性分析1
1.1拨叉的用途1
1.2拨叉的技术要求1
1.3审查拨叉的工艺性1
2．确定毛坯、绘制毛坯简图2
2.1选择毛坯2
2.2确定毛坯尺寸公差和机械加工余量3
2.1.1 公差等级3
2.2.2 铸件重量3
2.2.3 零件表面粗糙度3
2.2.4机械加工余量3
2.3绘制铸件毛坯简图3
3拟定拨叉工艺路线4
3.1定位基准的选择4
3.1.1 粗基准的选择4
3.1.2 精基准的选择4
3.2 表面加工方法的选择4
3.3 工序集中与分散5
3.4 工序顺序的安排5
3.5 确定工艺路线5
4. 切削用量、时间定额的计算6
4.1 切削用量的计算6
4.2 时间定额的确定7
4.2.1 基本时间的计算7
4.2.2 辅助时间的确定7
5.夹具的设计7
5.1 夹具的选择8
5.2 定位方案的设计8
5.2.1 夹具的设计思想8
5.2.2 工件在夹具中的定位与夹紧9
5.3 夹具体的设计9
5.3.1 定位基准的选择9
5.3.2 定位误差的分析9
5.4 导向元件的设计9
5.5 夹紧元件的设计10
5.6 夹具操作的简要说明10
6.设计的感想与体会11
7. 参考文献12
.......
摘 要
机械制造技术基础课程设计是我们在学完了大学的全部基础课、专业基础课以及专业课后进行的。这是我们在进行毕业设计之前对所学的各科课程一次深入的综合性总复习，也是一次理论联系实际的训练。因此，他在我们的大学四年生活中占有重要的地位。
我这次设计的是拨叉831003，有零件图、毛坯图、夹具装配图、夹具零件图各一张，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，题目所给的零件是拨叉831003。了解了拨叉的作用，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，最后拟定拨叉的工艺路线图，制定该工件的夹紧方案，画出夹具装配图。
就我个人而言，我希望通过这次课程设计对自己未来将从事的工作进一步适应性的训练，希望自己在设计中能锻炼自己的分析问题、解决问题、查资料的能力 ，为以后的工作打下良好的基础。
由于能力有限，设计尚有很多不足之处，希望各位老师给予指导。
Abstract
Machinofacture technology curriculum design is that we mimic all basic courses , technology basic course and major part having completed university being in progress after the specialized course. This is that we always review before the graduation practice being in progress to what be learned every thorough comprehensiveness of course,be also that a theory contacts actual training , it occupies important position therefore, in our university for four years life.
My design is Bocha 831,003, part map, rough map, fixture assembly, a fixture parts of the map. 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, subject to the parts is Bocha 831,003. Bocha understanding of the role, followed in accordance with the nature of parts and components 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, Bocha finalizing the road map process, the enactment of the workpiece clamping programme, to draw fixture assembly.
For me personally, I hope that through the curriculum design of their future will be further engaged in the work of adaptive training, in the hope that their design can exercise their own analysis, problem solving, the ability to search information, the work laid for the future A good foundation.
Because of limited capacity, there are a lot of design deficiencies, I hope that teachers give guidance.
目 录
1.零件的工艺性分析1
1.1拨叉的用途1
1.2拨叉的技术要求1
1.3审查拨叉的工艺性1
2．确定毛坯、绘制毛坯简图2
2.1选择毛坯2
2.2确定毛坯尺寸公差和机械加工余量3
2.1.1 公差等级3
2.2.2 铸件重量3
2.2.3 零件表面粗糙度3
2.2.4机械加工余量3
2.3绘制铸件毛坯简图3
3拟定拨叉工艺路线4
3.1定位基准的选择4
3.1.1 粗基准的选择4
3.1.2 精基准的选择4
3.2 表面加工方法的选择4
3.3 工序集中与分散5
3.4 工序顺序的安排5
3.5 确定工艺路线5
4. 切削用量、时间定额的计算6
4.1 切削用量的计算6
4.2 时间定额的确定7
4.2.1 基本时间的计算7
4.2.2 辅助时间的确定7
5.夹具的设计7
5.1 夹具的选择8
5.2 定位方案的设计8
5.2.1 夹具的设计思想8
5.2.2 工件在夹具中的定位与夹紧9
5.3 夹具体的设计9
5.3.1 定位基准的选择9
5.3.2 定位误差的分析9
5.4 导向元件的设计9
5.5 夹紧元件的设计10
5.6 夹具操作的简要说明10
6.设计的感想与体会11
7. 参考文献12
.......
