1、 1 摘摘 要要 本次设计内容是轴架加工工艺规程及夹具设计,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。本次设计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。 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
2、，并在以后设计中注意改进。 关键词关键词：工艺工序；切削用量；夹紧；定位；误差 2 Abstract: The design covers the mechanical design of manufacturing processes and machine tool fixture, metal cutting machine tools, tolerances and measurement, and many with knowledge. Axis frame processing procedures and drill hole 15H7 fixture designed to
3、include the machining process design, process design and the design of three-part special fixture. In the process design to analyze the first part to understand the parts of the process re-design the structure of rough, and the processing part is selected benchmark, part of the process route design;
4、 then step on the part of various industrial processes for size calculation,The key is to determine the various processes and cutting processing equipment; and the design of special fixture, select the component design and fixture parts, such as positioning devices, clamping devices, guide devices, folders and machine specific parts and other components connected ; calculated fixture positioning error generated when analyzed fixture structure is reasonable and inadequate attention in
