机械5

I轴法兰盘加工工艺和夹具设计 摘要 I轴法兰盘零件加工工艺及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：工艺，工序，切削用量，夹紧，定位，误差 Abstract The fla
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n. Keywords: process, process, cutti
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ng, 目录 1序言6 2零件的分析7 2.1零件的形状7 2.2零件的工艺分析7 3工艺规程设计9 3.1确定毛坯的制造形式9 3.2定位基准的选择零件表面加工方法的选择9 3.3制定工艺路线10 3.4选择加工设备和工艺装备10 3.4.1机床选用10 3.4.2选择刀具11 3.4.3选择量具11 3.5机械加工余量、工序尺寸及毛坯尺寸的确定11 4确定切削用量及基本时间13 4.1工序Ⅰ切削用量的及基本时间的确定13 4.2工序Ⅱ切削用量的及基本时间的确定15 5钻3Xφ9mm孔夹具设计19 5.1夹具的夹紧装置和定位装置19 5.2夹具的导向20 5.3切削力及夹紧力的计算20 5.4钻孔与工件之间的切屑间隙23 5.5钻模板24 5.6定位误差的分析24 5.7钻套、衬套、钻模板设计与选用24 5.8确定夹具体结构和总体结构26 5.9夹具设计及操作的简要说明27 总结28 致谢29 参考文献30