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1、西南科技大学本科生毕业论文阀体零件的工艺研究与工装设计摘要：分析阀体零件的零件工艺分析，确定其生产类型，然后确定毛坯的种类与制造方法，设计其机械加工工艺规程及工艺装备，并绘制出阀体零件图、毛坯图、夹具装配图和夹具零件图，填写机械加工工艺过程卡片及机械加工工序卡片，编制毕业设计说明书。了解阀体零件的结构以及所要加工的工序，根据其加工特点和生产类型来确定零件的定位方式，设计其夹紧装置。本设计题目是加工阀体的工艺过程，因此应根据其加工精度与表面粗糙度选择可行的、合理的夹具。该零件的夹具设计应具有工作可靠、效率高的特点，在操作方面，操作安全、省力、夹紧迅
2、速，便于制造和维修。关键词：阀体;夹具：工艺44西南科技大学本科生毕业论文TechnologyresearchandequipmentdesignofbodypartsAbstract:the analysis valve chest components craft analysis, determined its production type, then the determination materials type and the manufacture method, design its machine-finishing tech
3、nological process and the craft equipment, and draws up the valve chest detail drawing, the materials chart, the jig assembly drawing and the jig detail drawing, the filling in machine-finishing technological process card and the machine-finishing working procedure card, the
4、establishment curriculum designs the instruction booklet. Understood the valve chest components the structure as well as must process the working procedure, according to its processing characteristic and the production type determined the components the locate mode, designs d
5、esign topic processes four aperture same threaded holes, therefore should act according to its processing precision and the surface roughness choice feasible, the reasonable components jig design should have the work reliably, the efficiency high characteristic, in the operat
6、ion aspect, the operational safety, reduces effort, the clamp is rapid, and advantageous for the manufacture and the service.Keywords:valvebody,fixture,craft44西南科技大学本科生毕业论文目录第一章绪论51.1概述51.2国内外现状研究51.3主要研究内容、设计思想及工作方法或工作流程71.4选题的意义8第二章阀体的工艺分析及生产类型的确定92.1阀体的作用92.2阀体的技术要求92.3阀体的
7、工艺分析102.3.1小批量工艺分析102.3.2大批量工艺分析11第三章确定毛坯和绘制毛坯图133.1选择毛坯种类133.2毛坯形状的确定133.3毛坯尺寸的确定14第四章拟定阀体工艺路线154.1定位基准选择154.2表面加工方法确定154.3加工阶段划分164.4工序的集中和分散174.5工序顺序安排174.6确定阀体工艺路线18第五章工艺装备的选择215.1机床的选择215.2刀具的选择225.3量具的选用22第六章加工余量和工序尺寸的确定236.1确定加工余量的目的2344西南科技大学本科生毕业论文6.2工序余量的选用原则236.3阀体
8、零件的加工余量23第七章切削用量和切削时间的计算257.1铣上下端面257.1.1粗铣下端面257.1.2精铣下端面267.2铣前后端面
