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前刹车调整臂外壳的铣12左端面夹具设计及机械加工工艺规程装备含4张CAD图+说明书

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A-4-夹具装配图A0

前刹车调整臂外壳的机械加工工艺规程及铣12左端面夹具设计
摘要
设计的主要内容有：外壳-前刹车调整臂的机械加工工艺设计；铣削12左端面夹具设计。考虑到零件在机床运行过程中所受冲击不大，零件结构又比较简单，故选择铸造。调整臂外壳的主要加工面是调整臂的几个端面、方槽和孔，由于面的加工精度要比孔的加工精度容易保证。因此，采用先面后孔的原则，以保证加工精度。为了加工精确快速，特别设计了铣削12左端面夹具设计，对于加工零件采用两面一销进行定位，其他零件的定位采用了一面两销定位。由于该零件的尺寸不大，所需的夹紧力不大。因此，夹紧方式都采用手动夹紧，它的夹紧方式简单，机构的设计更为方便，满足夹紧要求。
关键词：外壳、前刹车调整臂、铣削、12左端面，夹具
Abstract
The main contents of the design are shell - front brake adjusting arm machining process design; milling 12 left end face clamp design. Considering that the parts suffered little impact during the operation of the machine tool and the structure of the parts was relatively simple, casting was chosen. The main machining surface of the adjusting arm shell is several end faces, square grooves and holes of the adjusting arm, because the machining accuracy of the surface is easier to ensure than that of the holes. Therefore, the principle of first face and back hole is adopted to ensure machining accuracy. In order to process accurately and quickly, the clamp design for milling 12 left end face is specially designed. Two sides and one pin are used to locate the machining parts, and one side and two pins are used to locate the other parts. Because the size of the part is small, the clamping force is not big enough. Therefore, the clamping methods are all manual clamping, its clamping method is simple, the design of the mechanism is more convenient, to meet the clamping requirements.
Key words shell, front brake adjusting arm, milling, 12 left end face, jig
目录
摘要I
Abstract II
第一章绪论1
1.1夹具夹紧装置及夹具体的基本要求1
1.2机床夹具功用1
1.3机床夹具在机械加工中的作用2
1.4机床夹具的设计要求2
第二章零件的分析4
2.1零件的作用4
2.2零件的组成表面、加工要求、技术要求分析4
2.2.1零件的组成表面4
2.2.2零件的加工要求5
2.2.3零件的技术要求5
第三章零件的工艺规程设计6
3.1确定毛坯的制造形式6
3.2基准的选择与确定6
3.3加工工艺路线的确定7
3.3.1工艺路线方案一7
3.3.2工艺路线方案二7
3.3.3工艺路线的确定8
3.4加工机床及加工装备的选择8
3.5确定加工余量10
4.2计算切削用量及基本时间11
第四章铣削12左端面夹具设计26
4.1定位方案及定位元件的确定与选择26
4.1.1定位方案的确定26
4.1.2定位元件的选择26
4.2夹紧方案及装置的确定与选择27
4.2.1夹紧方案的确定27
4.2.2夹紧元件的选择27
4.3夹具体的确定27
4.4导向装置的确定28
4.5计算铣削力28
4.6计算夹紧力29
4.7定位误差的分析29
结论30
致谢31
参考文献32