组合件数控车工艺与编程设计（机械CAD图纸）精选.doc

摘 要 在本设计说明书中,我通过对零件的图形分析,零件的结构工艺性，技术要求进行仔细分析了，所设计的零件结构应便于成型，并且成本低，效率高，它的涉及面广，因此这一环节是技术的关键，以便在拟定工艺规程时采用适当的措施。材料分析,选好了加工毛坯,了解常用的毛坯种类：锻件.型材.焊接件.冷压件等，还有毛坯是根据零件要求的形状，工艺尺寸等方面而制成的进一步加工使用的生产对象。在制订零件的工艺规程时，正确的选择工件的基准有着很重要的意义，应划分阶段一般分粗加工.半精加工和精加工三个阶段。选择的机床型号是CA6140普通车床，CJ6032A教学型数控车床。另外还对加工的工序.工艺进行分析,从而手工将加工零件的全部工艺过程、工艺参数、位移数据等以规定的代码、程序格式写出,编制出了适合所选车床的程序。 关键词: 零件的分析，毛坯，工艺，工序尺寸，加工路线，编程 Abstract In the design specification, I part of the analysis graph, structure technology of parts, technical requirements are carefully analyzed, parts of the structure should be designed to facilitate shaping, and low cost, high efficiency, it covers a wide range, so this part is the key technology in order to develop appropriate procedures, process the measures adopted. Material analysis, select the workpiece, understand the blank type commonly used: forgings. Section. Weld. Cold pressing parts, and blank parts are based on the required shape, process dimension and made further processing using production object. In the process planning of parts, has a very important significance to choose the correct reference, should be divided into rough machining stage generally. Semifinishing and finishing three stages. Select the type of machine is CA6140 ordinary lathe, CNC lathe CJ6032A teaching. In addition to the machining process. Process analysis, thereby manually machining parts of the whole process, process parameters, such as displacement data in the specified format to write code, procedures, prepared for the selected lathe program. Keywords: parts of the analysis, blank, process, process size, processing route, programming 目录 第一章 零件的分析 ………………………………………………………2 1.1 零件的结构工艺性分析…………………………………………………2 1.1.1 零件的形状分析 ………………………………………………2 1.1.2 零件的形位公差分析 …………………………………………2 1.1.3零件的加工表面分析 ……………………………………………2 1.2 零件的材料分析 ………………………………………………………3 第二章 毛坯的设计 ………………………………………………………4 2.1 确定零件的生产类型和生产纲领 ……………………………………4 2.2.1 毛坯的种类 ……………………………………………………4 2.2.2 毛坯种类的选择 ………………………………………………4 2.2.3毛坯的形状与尺寸的选择