钻床夹具装配图A0
摘要
差速器壳体的加工工艺和钻端面12-ф12.5孔的工艺设计、工序设计以及专用夹具的设计三部分。在工艺设计中要首先对零件进行分析，了解零件的工艺再设计出毛坯的结构，并选择好零件的加工基准，设计出零件的工艺路线；接着对零件各个工步的工序进行尺寸计算，关键是决定出各个工序的工艺装备及切削用量；然后进行专用夹具的设计，选择设计出夹具的各个组成部件，如定位元件、夹紧元件、引导元件、夹具体与机床的连接部件以及其它部件；计算出夹具定位时产生的定位误差，分析夹具结构的合理性与不足之处，并在以后设计中注意改进。
关键词：差速器壳体；加工工艺；工序；专用夹具；切削用量
Abstract
The processing technology of differential shell and the process design of drilling hole 12-12.5 on the end face, the process design and the design of special fixture are three parts. In the process design, we should first analyze the parts, understand the process of the parts, then design the structure of the blank, and select the processing benchmark of the parts, then design the process route of the parts; then calculate the size of the parts in each step, the key is to determine the process equipment and cutting parameters of each step; and then, we can choose the processing benchmark of the parts. The design of the special fixture is carried out, and the components of the fixture are selected, such as positioning elements, clamping elements, guiding elements, connecting parts between fixture body and machine tool, and other components. The positioning errors caused by fixture positioning are calculated, the rationality and shortcomings of fixture structure are analyzed, and the design notes are given in the future. Intention to improve.
Key words: differential case; processing technology; process; special fixture; cutting parameters
目录
摘要I
Abstract II
序言1
1.零件的分析2
1.1零件的作用2
1.2零件的工艺分析2
2.1毛坯的制造形式4
2.2基准面的选择4
2.2.1粗基准的选择4
2.2.2精基准的选择4
2.3制订工艺路线4
2.3.1.工艺线路方案一4
2.3.2工艺路线方案二5
2.3.3.工艺方案的比较与分析5
2.4机械加工余量、工序尺寸及毛坯尺寸的确定6
2.4.1外圆表面6
2.4.2内圆表面8
2.4.3端面9
2.4.4凸台孔系9
2.5确定切削用量及基本工时10
3.夹具设计36
3.1问题的提出36
3.2夹具设计36
3.2.1定位基准的选择36
3.2.2导向方案36
3.2.3切削力和夹紧力的计算36
3.2.4.工件的加工精度分析37
参考文献38
差速器壳零件图 A1
工序卡
过程卡
夹具体A1
轴A3
钻模板A2
差速器壳毛坯图 A1
字数统计
设计所包含文件
钻大端面12-12.5孔工序卡
夹具设计部分
说明书前三页
