机械5

连杆的钻2-Φ11H7孔夹具设计及机械加工工艺规程工装 摘要 本次夹具设计的主要目的是在确保加工零件质量的基础上，能够见制造成本降到最低，生产的效率大幅度起升，最终，实现利益的最大化。这也是当下国内外加工工艺主要的发展方向。 通过对连杆零件图还有其外形及内部构造的分析，接而对连杆的加工工艺、加工装备，切削用量等等进行确定。该零件是机器的一个重要结构。为机器的正常运转提供强有力的保证，最终使得设备按照预想的方法进行相应的运动。完成连杆零件图还有毛坯图的绘制。 依据指导老师分配的任务，设计钻2-Φ11H7孔钻床专用夹具的设计。专用夹具的设计主要有3部分：定位方案及元件；夹紧方案及元件；夹具体及钻套等设计。经过分析，本次设计的工艺及专用夹具，能够满足生产的需要。 关键词：连杆、工艺、2-Φ11H7孔、钻床、夹具 Abstract The mai
n purpose of this fixture desig
n is to e
nsure the quality of the processi
ng parts o
n the basis of the ma
nufacturi
ng cost ca
n be see
n to the lowest, productio
n efficie
ncy greatly i
ncreased, a
nd ultimately to maximize the be
nefits. This is also the mai
n developme
nt directio
n of processi
ng tech
nology at home a
nd abroad. Through the a
nalysis of the co
n
necti
ng rod part drawi
ng a
nd its shape a
nd i
nter
nal structure, the processi
ng tech
nology, equipme
nt a
nd cutti
ng parameters of the co
n
necti
ng rod are determi
ned. This part is a
n importa
nt structure of the machi
ne. Provide a stro
ng guara
ntee for the
normal operatio
n of the machi
ne, a
nd ultimately make the equipme
nt i
n accorda
ncewith the desired method of motio
n. Complete the drawi
ng of the co
n
necti
ng rod part drawi
ng a
nd the bla
nk drawi
ng. Accordi
ng to the task assig
ned by the i
nstructor,we desig
n the special fixture for drilli
ng 2- 11H7 hole drilli
ng machi
ne. The desig
n of special fixture mai
nly i
ncludes three parts: positio
ni
ng scheme a
nd compo
ne
nts; clampi
ng scheme a
nd compo
ne
nts; fixture body a
nd drill sleeve desig
n. After a
nalysis, the desig
n process a
nd special fixture ca
n meet the
needs of productio
n. Keywords: co
n
necti
ng rod, process, 2-, 11H7 hole, drill press, jig 目录 摘要I Abstract II 一引言1 1.1本课题研究的目的及意义1 1.2专用夹具设计的特点1 1.3专用夹具设计的基本要求1 二分析零件的作用、构造及加工要求3 2.1分析零件的作用3 2.2分析组成表面3 2.3分析加工要求3 2.4分析形位公差4 三设计零件的工艺规程5 3.1分析加工工艺过程5 3.2确定零件材料5 3.3确定生产形式5 3.4确定加工基准5 3.5确定制造形式6 3.6确定加工工艺路线7 3.7确定加工机床、夹具、刀具及量具8 3.8确定加工余量8 3.9计算切削用量及基本工时10 四设计钻2-Ф11H7孔的专用夹具26 4.1确定零件的定位方案26 4.2确定零件的定位元件26 4.3确定零件的夹紧方案26 4.4确定零件的夹紧元件27 4.5确定夹具体27 4.6选择导向装置—钻套28 4.7计算钻削力28 4.8计算夹紧力28 4.9计算定位误差29 五结论30 六致谢31 参考文献32