毕业设计--轴类成组工艺设计

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1、 I 摘 要 本文主要介绍了轴类成组工艺技术及成组技术的分类编码，还有轴类零件的加工工 艺规程及一道工序的专用夹具设计。此设计的轴类零件的结构较为复杂，其加工的地方 主要是轴表面，孔和平面。本设计先车轴表面，然后铣平面和键槽，最后钻孔。将轴的 加工明确划分成粗加工和半精加工阶段以保证它们的加工精度。 主要加工工序安排是先 钻中心孔，然后粗车，半精车，倒角，切槽，铣平面和键槽，最后钻孔。整个加工过程 选用了钻床、铣床和车床。工件在机床上定位夹紧选用三爪夹盘，双顶尖以及铣床和钻 床专用夹具， 此设计的夹具能适用于这一类轴的夹紧， 夹紧方式为手动夹紧， 夹紧可靠， 操作方便。因此生产效率较高，适用于

2、大批量、流水线上加工。能够满足设计要求。 关键词： 成组工艺，定位，夹紧，专用夹具 II Abstract Main introduction to this text, hub mechanical preparation method course of aluminium alloy, and make from the blank of the part in machining, to its quality control of internal quality, the appearance and dimension precision in the extremely mec

3、hanical processing course of heat treatment. The hub part is strict with its quality requirement as the security one of part of car, it is undertaking to bear the weight of functions such as car weight, transmitting the motive force, tire to dispel the heat,etc., and rotate the sport part as one, th

4、ere are the hubs under certain rigidity prerequisites, must accord with conditions such as light quality, endurance, according with the dynamic equilibrium,etc So measure its part of hub after machining, guarantee the machining accuracy of the part is required, meet the assembly size requirement for the part. And introduce in the article at present briefly, in the hub manufacture process, concrete surface and detection method measured to its part. In order to guarantee that it is accurate to me