摘要 本次设计内容涉及了机械制造工艺及机床夹具设计、金属切削机床、公差配合与测量等多方面的知识。 轴承座加工工艺规程及其钻Φ10孔的夹具是包括零件加工的工艺设计、工序设计以及专用夹具的设计三部分。在工艺设计中要首先对零件进行分析，了解零件的工艺再设计出毛坯的结构，并选择好零件的加工基准，设计出零件的工艺路线；接着对零件各个工步的工序进行尺寸计算，关键是决定出各个工序的工艺装备及切削用量；然后进行专用夹具的设计，选择设计出夹具的各个组成部件，如定位元件、夹紧元件、引导元件、夹具体与机床的连接部件以及其它部件；计算出夹具定位时产生的定位误差，分析夹具结构的合理性与不足之处，并在以后设计中注意改进。 关键词：轴承座；夹具设计、工艺路线 Abstract The co
nte
nt of this desig
n i
nvolves the mecha
nical ma
nufacturi
ng process a
nd machi
ne tool fixture desig
n, metal cutti
ng machi
ne tools, tolera
nce a
nd measureme
nt, a
nd other aspects of k
nowledge. The processi
ng tech
nical specificatio
n of beari
ng housi
ng a
nd the fixture for drilli
ng 10 holes are three parts i
ncludi
ng the process desig
n, the worki
ng procedure desig
n a
nd the special fixture desig
n. I
n the process desig
n, we should first a
nalyze the part, u
ndersta
nd the process of the part a
nd the
n desig
n the structure of the bla
nk, a
nd select the machi
ni
ng datum of the part, desig
n the process route of the part; The
n the size of each step of the part is calculated, the key is to determi
ne each step of the process equipme
nt a
nd cutti
ng qua
ntities, a
nd the
n carry out the desig
n of special fixture, select the desig
n of the fixture compo
ne
nts, for example, the positio
ni
ng eleme
nts, clampi
ng eleme
nts, guidi
ng eleme
nts, the co
n
necti
ng parts betwee
n the fixture a
nd the machi
ne tool, as well as other parts, the positio
ni
ng errors caused by the positio
ni
ng of the fixture are calculated, a
nd the ratio
nality a
nd shortcomi
ngs of the fixture structure are a
nalyzed, a
nd pay atte
ntio
n to the improveme
nt i
n the future desig
n. Keywords: Beari
ng Housi
ng; fixture desig
n, process li
ne. 目录 摘要I Abstract II 绪论1 1计算生产纲领、确定生产类型2 1.1生产纲领2 1.2生产类型2 2零件分析3 2.1零件的结构分析3 2.2零件的技术要求分析3 2.2.1加工表面的加工精度和形状精度3 2.2.2主要加工表面之间的相互位置精度4 2.2.3加工表面的粗糙度4 3工艺规程设计5 3.1定位基准的选择5 3.1.1粗基准的选择5 3.1.2精基准的选择5 3.2制定加工工艺路线6 3.3选择加工设备及工艺装备7 3.4加工工序设计、工序尺寸计算8 3.5选择切削用量、确定时间定额9 4机床专用夹具设计21 4.1专用夹具的提出21 4.2夹具总体方案设计21 4.3夹具设计21 4.3.1定位元件设计21 4.3.2夹紧元件设计21 4.3.3夹具体设计22 4.4定位元件定位误差分析和计算22 4.5夹紧机构设计和夹紧力计算23 4.5.1确定驱动机构23 4.5.2夹紧力计算23 4.5钻套的设计23 总结25 致谢26 参考文献27