1、 论文题目论文题目: :CACA61406140 车床拨叉的车床拨叉的加工工艺及加工工艺及加工加工 2525 孔孔夹具设计夹具设计 摘摘 要要 本次设计内容涉及了机械制造工艺及机床夹具设计、金属切削机床、公差配 合与测量等多方面的知识。 拨叉加工工艺规程及其钻孔的夹具设计是包括零件加工的工艺设计、 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
2、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。 关键词关键词：拨叉； 夹具； 切削用量； 夹紧 ABSTRCT This design content has involved the machine manufacture craft and the engine bed jig design, the metal-cutting machine tool, the common difference coordination and the survey and so on th
3、e various knowledge. Fork processing procedures and drilling fixture was designed to include machining process design, process design and the design of three-part special fixture. In the process design, we should first carry out analysis of parts, to understand parts of the process re-design of a ro
4、ugh structure, and a good part of the process Xuanze benchmark design process Luxian parts; Jie Zhao Ge Ge process step on the part of the process for Chicun calculation, Guan Jian is to determine the various processes of technical equipment and cutting; then dedicated fixture design, select the component design and fixture parts, such as positioning devices, clamping devices, guide devices, the specific folder connection with the machine parts and other parts; calculate the fixture positi
