（毕业论文毕业设计）-(680)拖拉机半轴壳端面钻孔夹具设计.docVIP

拖拉机前驱半轴壳夹具设计 2 - l 摘 要 机床夹具是组成工艺系统的一个环节，是影响加工质量的重要因素，一般情况下，使用机床夹具能稳定地保证产品质量，而不必过高的要求工人的技术等级。因而机床夹具设计被广泛应用于机械设计与制造当中． 机床夹具包括结构设计和精度设计两个方面，二者相辅相成，有好的结构定位才能保证夹具的合理性，而保证了高的精度才能保证加工的零件符合生产要求。 机床夹具设计要充分考虑加工的可行性.通用行.经济性和高效性． Tractor forerunner half axle sleeve end surface drill hole jig design The engine bed jig is composes the craft system a link, is affects the processing quality the important attribute, in the ordinary circumstances, uses the engine bed jig to be able to guarantee the product quality stably, but does not need the high request workers technical rank.Thus the engine bed jig design is widely applied middle the machine design and the manufacture. The engine bed jig designs two aspects including the structural design and the precision, the two complement one another, has the good structure localization to be able to guarantee the jig the rationality, but had guaranteed the high precision can guarantee the processing the components conform to the production requirement. The engine bed jig design must consider the processing fully the feasibility. General line. Efficiency and highly effective. 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc230420458 第一部分 前言 PAGEREF _Toc230420458 \h 3 HYPERLINK \l _Toc230420459 第二部分 课题任务说明 PAGEREF _Toc230420459 \h 4 HYPERLINK \l _Toc230420460 第三部分 工件的端面孔加工工艺性分析 PAGEREF _Toc230420460 \h 6 HYPERLINK \l _Toc230420461 第四部分 确定夹具的结构方案 PAGEREF _Toc230420461 \h 7 HYPERLINK \l _Toc230420462 4.1 确定定位方案,设计定位机构 PAGEREF _Toc230420462 \h 7 HYPERLINK \l _Toc230420463 4.2确定夹紧方案，设计夹紧机构 PAGEREF _Toc230420463 \h 10 HYPERLINK \l _Toc230420464 4.2.1 钻削力的计算 PAGEREF _Toc230420464 \h 10 HYPERLINK \l _Toc230420465 4.2.2 夹紧力的计算 PAGEREF _Toc230420465 \h 10 HYPERLINK \l _Toc230420466 4.2.3 夹紧方案选择和设计 PAGEREF _Toc230420466 \h 10 HYPERLINK \l _Toc230420467 4.2.4 各定位元件、夹紧件的设计 PAGEREF _Toc230420467 \h 12 HYPERLINK \l _Toc230420468 4.2.5 加工设备、刀具的选择 PAGEREF _To