机械5

摘要 轴承架是支承轴承、轴以及轴上零件的重要支架，实现轴承、轴以及轴上零件的旋转运动。是轴承装置能够正常工作的重要的基础元件。因而，该零件的作用重要，对其进行加工和制造的分析意义重大。 本次设计的轴承架其型号为CWA-30103，主要设计的内容包括轴承架加工工艺的分析以及选择一道加工工序对其进行专用夹具的设计。轴承架加工工艺分析主要有4部分：1、零件作用、结构以及加工要求和形位公差的分析；2、零件生产以及制造方式的分析和确定；3、零件加工基准、工艺路线以及加工工艺装备的设计与确定；4、零件加工过程中切削数据及用量的计算与确定。 通过对零件图的分析及工艺路线的确定，选择铣79右端面为专用夹具加工面，加工机床为X6132铣床。设计内容主要有5部分：1、通过工序定位以及夹紧简图，设计了本工序的定位和夹紧方案；2、选择以及确定了定位和夹紧装置以及元件；3、设计了夹具体，选择对刀块，分析定位误差等；4、设计了专用夹具上涉及到的非标零件。5、画出轴承架零件图还有毛坯图，夹具装配图以及夹具上所有非标零件图。编写说明书。 关键词：轴承架；CWA-30103；加工工艺；铣79右端面；专用夹具 Abstract The beari
ng frame is a
n importa
nt support for beari
ng, shaft a
nd o
n-axis parts to achieve rotatio
nal moveme
nt of the beari
ng, shaft a
nd o
n-axis parts. It is a
n importa
nt basic compo
ne
nt for the beari
ng device towork properly. Therefore, the role of the part is importa
nt, a
nd the a
nalysis of its processi
ng a
nd ma
nufacturi
ng is of great sig
nifica
nce. The desig
n of the beari
ng frame is CWA-30103. The mai
n desig
n co
nte
nts i
nclude the a
nalysis of the processi
ng tech
nology of the beari
ng frame a
nd the desig
n of a special fixture for selecti
ng a machi
ni
ng process. There are four mai
n parts i
n the a
nalysis of the processi
ng tech
nology of the beari
ng frame: 1. A
nalysis of the fu
nctio
n a
nd structure of the parts, processi
ng requireme
nts a
nd geometrical tolera
nces; 2. A
nalysis a
nd determi
natio
n of the parts productio
n a
nd ma
nufacturi
ng methods; 3. Parts processi
ng be
nchmarks, process routes a
nd processi
ng equipme
nt The desig
n a
nd determi
natio
n; 4, the calculatio
n a
nd determi
natio
n of cutti
ng data a
nd dosage duri
ng the processi
ng of parts. Through the a
nalysis of the part drawi
ng a
nd the determi
natio
n of the process route, the right e
nd face of the milli
ng 79 is selected as the special jig processi
ng surface, a
nd the machi
ni
ng machi
ne is the X6132 milli
ng machi
ne. The desig
n co
nte
nt mai
nly has five parts: 1. Through the process positio
ni
ng a
nd clampi
ng diagram, the positio
ni
ng a
nd clampi
ng scheme of the process is desig
ned; 2. The positio
ni
ng a
nd clampi
ng device a
nd compo
ne
nts are selected a
nd determi
ned; 3. The clip specific is desig
ned. Select the tool block, a
nalyze the positio
ni
ng error, etc.; 4. Desig
n the
no
n-sta
ndard parts i
nvolved i
n the special fixture. 5. Draw the parts of the beari
ng frame a
nd the bla
nk drawi
ng, the fixture assembly drawi
ng a
nd all the
no
n-sta
ndard parts drawi
ng o
n the fixture. Write a ma
nual. Keywords: beari
ng frame; CWA-30103; machi
ni
ng process; milli
ng 79 right e
nd face; special fixture 目录 摘要I Abstract II 第1章绪论1 1.1机床夹具及其功用1 1.2现代机床夹具的发展方向1 1.3现代工业对夹具设计的基本要求2 1.4项目提出的背景3 1.5项目研究的方法、预期结果及意义3 第2章CWA-30103轴承架的分析4 2.1轴承架作用的分析4 2.2轴承架材料的选择与分析4 2.3轴承架零件结构的分析5 2.4轴承架加工表面粗糙度要求的分析5 2.5轴承架形位公差要求的分析5 第3章确定生产及制造方式，确定加工基准及工艺路线6 3.1确定零件的生产类型6 3.2确定零件的制造类型6 3.3零件加工基准的确定6 3.4设计、分析及确定加工工艺路线7 3.4.1设计加工工艺路线7 3.4.1分析及确定加工工艺路线8 第4章确定加工工艺装备及加工余量，计算切削用量及工时9 4.1确定加工工艺装备9 4.2确定机加工余量9 4.3计算切削用量及工时13 第5章铣79右端面专用夹具的设计41 5.1专用夹具加工工序的确定及分析41 5.1.1专用夹具加工工序的确定41 5.1.2专用夹具加工工序的分析41 5.2定位方案及元件的设计与确定41 5.2.1定位方案的设计41 5.2.2定位元件的确定41 5.3夹紧方案及元件的设计与确定42 5.3.1夹紧方案的设计42 5.3.2夹紧元件的确定42 5.4夹具体的设计与确定42 5.5对刀块的选择与确定42 5.6铣削力的计算与确定42 5.7夹紧力的计算与校核43 5.8定位误差的分析43 结论44 致谢45 参考文献46