机械5

摘要 本通过对托架进行分析，在给定的生产条件下，总结实际生产经验和科学分析的基础上，由多个加工工艺方案优选制定出加工工艺过程。工艺规程是指导生产的重要技术文件，实际生产必须按照工艺规程规定的加工方法和加工顺序进行。制定工艺规程应在一定的生产条件下，以最少的劳动量和最低的生产成本，在规定的期间内，可靠地加工出符合图样及技术要求的零件。 在编制零件的工艺规程时，提出了相应的夹具,量具和刀具设计任务书。根据任务书进行夹具的结构设计。确定夹具的结构方案中，在定位、夹紧、对定等各个部分的结构以及总体布局等方面的几个不同方案中，经过分析比较，确定合理的方案，最后绘制出夹具总图。就像上述的设计方法，我同样设计了量具和刀具。 关键词：工艺规程设计工序夹具制造量具刀具 Abstract The graduatio
n thesis a
nalyze to the trestle,seltti
ng at the give
n productio
n co
nditio
n,o
n the summi
ng up the actual productio
n experie
nce a
nd scie
nce a
nalysis base,be processed by ma
ny the craft optimizatio
n establish to process pla
n
ni
ng.The rules of the craft is the importa
nt tech
nique which guide the produce docume
nt, the actual productio
n must rule accordi
ng to the craft gage dista
nce of process the method a
nd process the i
n proper order progress. The parts that establishme
nt craft gage dista
nce is at the request of u
nder certai
nly of the productio
n co
nditio
n, with at least of labor qua
ntisty a
nd mi
nimum productio
n cost, i
n the prescriptive the i
nside of term, process to match drawi
ng a
nd tech
niques depe
ndablely. At the craft gage dista
nce of the establishme
nt parts hour, put forward the homologous fixture,gauge a
nd tool desig
n missio
n book. Proceed the co
nstructio
n desig
n of the fixture accordi
ng to the missio
n book. The co
nstructio
n project i
nside of the certai
n fixture, i
n positio
n, clip tightly, to a few a
nd differe
nt project that settle a partial co
nstructio
n a
nd total layout etc., compare through a
nalysis, make sure the reaso
nable project, draw the fixture ge
neral drawi
ng fi
nally. As me
ntio
ned above, I also desig
ned rule a
nd k
nife. Key words: process pla
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ni
ng sheduli
ng fixture ma
nufacturi
ng gauge tool 目录 摘要- 1 - 1绪论- 4 - 2加工工艺设计- 5 - 2.1零件的分析- 5 - 2.1.1生产类型及其工艺特点- 5 - 2.2.2基准面的选择- 8 - 2.2.3制订工艺路线- 8 - 2.2.4机械加工余量、工序尺寸及毛坯尺寸的确定- 10 - 2.2.5确定切削用量及基本工时- 10 - 3钻床夹具设计- 17 - 3.1专用夹具及钻床夹具简介- 17 - 3.1.1专用夹具的特点- 17 - 3.1.2夹具设计通用原则- 17 - 3.1.3对刀装置- 18 - 3.2零件在本工序中的加工分析- 18 - 3.2.1设计任务书- 18 - 3.2.2工序简图（图2）本夹具设计是第4道工序钻34孔的夹具。 - 18 - 3.2.3分析原始资料- 19 - 3.3确定夹具的结构方案- 19 - 4光滑极限量设计- 22 - 4.1光滑极限量规简介- 22 - 4.2光滑极限量规工作尺寸的计算- 24 - 6结论- 26 - 致谢- 27 - 参考文献- 28 -