设计简介
摘 要：本次毕业设计的题目是转盘加工工艺及夹具设计，由于本工件的表面比较复杂，其毛坯采用铸造。通过对车床转盘零件图及其性能要求的分析研究，合理的设计出一套工艺规程和铣燕尾的夹具以及钻孔铰孔Φ35H7的孔。运用所学的专业知识，查阅相关的资料，完成设计任务，在选材加工使用过程中，联系机器设备的大小，进而设计出合理的夹具。
关键词：钻扩绞Φ35H7；工艺规程；车床转盘；铣燕尾；夹具；
The Processing Techniques Of Turntable And It’s Fixture Design
Abstract:The design process is the turning wheel and fixture design,as the workpiece surface is complex,with rough cast,By Wheel Parts Lathe and performance requirements analysis,design a set of reasonable rules and milling process dovetail jig and drill the hole expansion hinge Φ35H7 fixture.Apply the konwledge,access to relevant information,complete the design task,the equipment used in the selection process after the contact of the machine size,design a reasonable fixture.
Key word:Φ35H7 Hole drilling; Ertender hinge;Process planning;Lathe turntable;Milling coattails;Fixture
目 录
摘要 ……………………………………………………………………………………1
关键词 …………………………………………………………………………………1
1前言…………………………………………………………………………………1
2零件结构工艺性分析…………………………………………………………………2
2.1零件图………………………………………………………………………………2
2.2零件结构工艺性分析………………………………………………………………4
3毛坯分析………………………………………………………………………………4
3.1毛坯材料HT200的性能分析………………………………………………………5
3.2毛坯的种类分析……………………………………………………………………5
3.3毛坯的加工余量 ………………………………………………… ………………5
4加工阶段的划分与工序路线的确定………………………………………………6
4.1工艺路线的制定…… …………………………………………… ………………6
4.1.1粗基准的选择……………………………………………………………………6
4.1.2精基准的选择原则………………………………………………………………6
4.1.3加工阶段的划分…………………………………………………………………7
4.1.4加工工艺路线方案………………………………………………………………8
4.2机械加工余量、工序尺寸及公差的确定 ………………………………………10
4.2.1确定工序尺寸 …………………………………………………………………10
4.2.2切削用量………………………………………………………………………12
4.2.3时间定额………………………………………………………………………13
5车床转盘零件的夹具设计…………………………………………………………14
5.1机床夹具设计的基本要求………………………………………………………14
5.2机床夹具的分类………………………………………………………………14
5.3铣床夹具设计……………………………………………………………………16
5.3.1夹紧方案的确定………………………………………………………………16
5.3.2夹紧力的计算…………………………………………………………………16
5.4钻床夹具的设计…………………………………………………………………17
5.4.1夹紧方案的确定…………………………………………………………17
5.4.2夹紧力的计算……………………………………………………………18
总结…………………………………………………………………………………19
参考文献 ……………………………………………………………………………20
致谢……………………………………………………………………………………21
附录……………………………………………………………………………………22
关键词：钻扩绞Φ35H7；工艺规程；车床转盘；铣燕尾；夹具；
The Processing Techniques Of Turntable And It’s Fixture Design
Abstract:The design process is the turning wheel and fixture design,as the workpiece surface is complex,with rough cast,By Wheel Parts Lathe and performance requirements analysis,design a set of reasonable rules and milling process dovetail jig and drill the hole expansion hinge Φ35H7 fixture.Apply the konwledge,access to relevant information,complete the design task,the equipment used in the selection process after the contact of the machine size,design a reasonable fixture.
Key word:Φ35H7 Hole drilling; Ertender hinge;Process planning;Lathe turntable;Milling coattails;Fixture
目 录
摘要 ……………………………………………………………………………………1
关键词 …………………………………………………………………………………1
1前言…………………………………………………………………………………1
2零件结构工艺性分析…………………………………………………………………2
2.1零件图………………………………………………………………………………2
2.2零件结构工艺性分析………………………………………………………………4
3毛坯分析………………………………………………………………………………4
3.1毛坯材料HT200的性能分析………………………………………………………5
3.2毛坯的种类分析……………………………………………………………………5
3.3毛坯的加工余量 ………………………………………………… ………………5
4加工阶段的划分与工序路线的确定………………………………………………6
4.1工艺路线的制定…… …………………………………………… ………………6
4.1.1粗基准的选择……………………………………………………………………6
4.1.2精基准的选择原则………………………………………………………………6
4.1.3加工阶段的划分…………………………………………………………………7
4.1.4加工工艺路线方案………………………………………………………………8
4.2机械加工余量、工序尺寸及公差的确定 ………………………………………10
4.2.1确定工序尺寸 …………………………………………………………………10
4.2.2切削用量………………………………………………………………………12
4.2.3时间定额………………………………………………………………………13
5车床转盘零件的夹具设计…………………………………………………………14
5.1机床夹具设计的基本要求………………………………………………………14
5.2机床夹具的分类………………………………………………………………14
5.3铣床夹具设计……………………………………………………………………16
5.3.1夹紧方案的确定………………………………………………………………16
5.3.2夹紧力的计算…………………………………………………………………16
5.4钻床夹具的设计…………………………………………………………………17
5.4.1夹紧方案的确定…………………………………………………………17
5.4.2夹紧力的计算……………………………………………………………18
总结…………………………………………………………………………………19
参考文献 ……………………………………………………………………………20
致谢……………………………………………………………………………………21
附录……………………………………………………………………………………22
