专用夹具机构设计及工作过程毕业设计论文文档.doc

【摘要】 本论文主要阐述的零件是CA6140卧式车床上的法兰盘，它位于车床丝杆的末端，主要作用是标明刻度，实现纵向进给。经过查阅资料，首先要对零件进行工艺分析，经过工艺分析，对工序进行对比，通过选定某一工序设计专用夹具，选择定位基准，定位方法和定位原件，进行定位误差分析。 在文档中的一部分，主要叙述了专用夹具设计基本要求和特点，对零件的工艺分析，完成了工艺方案的选定，第二部分，对夹具设计，对夹具设计的计算。最后对主要零部件的设计和标准件的选择，以及对装配图各尺寸提供依据。通过前面的设计方案画出模具各零件图和装配图。 本次设计阐述了专用夹具机构设计及工作过程。本夹具性能可靠，运行平稳，提高生产效率，降低劳动成本和生产成。 关键词：夹具设计 基本要求 工艺分析 【Abstract】 This paper mainly expounds the part is a flange on the end of CA6140 horizontal lathe, which is located in the lathe wire rod, the main role is to indicate the scale, realize longitudinal feeding. Through access to information, the first part to process analysis, through process analysis, comparing the process, by choosing a process special jig design, selection of locating datum, positioning method and positioning of the original, positioning error analysis. A part of the documentation for the special fixture design, mainly describes the basic requirements and characteristics, analysis of the parts of the process, completed the selection, process scheme of second part, fixture design, the calculation of fixture design. Finally, the design and standards on the main parts selection, and provide the basis for the size of the assembly drawing. Through the front of the design to draw the mold parts drawing and assembly drawing. The design describes the design and the working process of special fixture mechanism. The clamp reliable performance, smooth operation, improve production efficiency, reduce labor costs and production cost. Key words: The basic requirements of fixture design process analysis 目 录 3.4.7 钻 4×φ9孔........................................................18 3.4.8 磨削外圆.............................................................18 4.夹具设计.....................................................................19 4.1 设计时注意的问题.......................................................19 4.2 夹具设计...............................................................19 4.2.1 定位基准的选择..............................