机械5

摘要 零件加工工艺规程在零件生产过程中非常重要，指导操作者按要求加工尺寸保证公差等。专用夹具是针对某一道工序设计的机床夹具，保证产品的生产效率和生产质量。因此，对另加加工工艺规程和专用夹具进行设计，在零件加工过程中非常重要，对其进行研究也非常有意义。 本次设计选取支架零件为被加工件，主要任务有加工工艺规程以及专用夹具设计。加工工艺规程设计前分析了零件的材质，结构以及加工要求等。确定了生产和制造方式，设计了加工工艺路线，计算切削用量，填写工序卡等。本次专用夹具设计铣5槽，适用机床卧式铣床X62，铣刀为三面刃铣刀。对其定位和夹紧方案进行设计，选择定位和夹紧元件等。最后，完成CAD图形绘制及说明书的撰写等。 关键词：支架；加工工艺；专用夹具；铣5槽；切削用量 Abstract Parts processi
ng tech
nology regulatio
ns arevery importa
nt i
n the productio
n process of parts, guidi
ng operators to e
nsure tolera
nce accordi
ng to the required processi
ng size. The special fixture is a machi
ne tool fixture desig
ned for a certai
n process to e
nsure the productio
n efficie
ncy a
nd quality of products. Therefore, the desig
n of additio
nal processi
ng procedures a
nd special fixtures isvery importa
nt i
n the process of parts processi
ng, a
nd the research o
n them is alsovery mea
ni
ngful. This desig
n chooses the bracket parts as the processed parts. The mai
n tasks are the processi
ng tech
nology regulatio
ns a
nd the desig
n of special fixture. The material, structure a
nd processi
ng requireme
nts of the partswere a
nalyzed before the desig
n of the processi
ng procedure. The productio
n a
nd ma
nufacturi
ng methods are determi
ned, the processi
ng route is desig
ned, the cutti
ng parameters are calculated, a
nd the process cards are filled i
n. This special fixture desig
n milli
ng 5 slots, suitable for machi
ne tool horizo
ntal milli
ng machi
ne X62, milli
ng cutter for three-sided edge milli
ng cutter. The positio
ni
ng a
nd clampi
ng scheme is desig
ned, a
nd the positio
ni
ng a
nd clampi
ng eleme
nts are selected. Fi
nally, the drawi
ng of CAD graphics a
nd thewriti
ng of i
nstructio
ns are completed. Keywords: bracket; processi
ng tech
nology; special fixture; milli
ng 5 slots; cutti
ng parameters 目录 摘要I Abstract II 前言1 第1章工艺规程制定2 1.1机械加工工艺规程制订2 1.2机械加工工艺规程的组成2 1.3制订机械加工工艺规程的原始资料2 第2章零件的分析3 2.1零件的作用3 2.2零件的工艺分析3 第3章工艺规程设计4 3.1确定毛坯的制造形式4 3.2基准面的选择4 3.3制定工艺路线5 3.4确定各加工表面的加工余量7 3.5基本工时的确立8 第4章夹具设计19 4.1定位基准的选择19 4.2切削力及夹紧力的计算19 4.3定位误差分析20 4.4夹具设计及操作的简要说明20 致谢21 参考文献22