机械5

垫片冲压复合模具的设计 摘要 机械产品的垫片大部分是冲压制品，产品性能的提高要求高素质的冲压模具、冲压性能、成型工艺和冲压制品的设计。冷冲裁模，约占冲压成型总数的60%，主要用于金属制品的成型，它是冲压制品生产中十分重要的工艺装置。冲压成型的广泛应用，正是本设计的根本出发点。 本来源于生产实际，主要任务是完成垫片的冲压模具设计和制造仿真。通过多种方案对比，本设计采用复合模结构，模具中设置了冲孔、落料等工位。设计中通过对三角板的材料、形状、尺寸及其精度的要求进行冲压工艺分析，根据工艺计算结果，对模具主要零部件，如凸、凹模和凸模固定板等进行详细设计，并设计了三角板的复合模。在设计中对模具的总体结构进行设计，包括上下模座、导柱导套、垫板、固定板、导料板、卸料板、卸料板弹钉等的设计与选用。利用Auto CAD2004软件制作了此复合模模具的装配图和零件图。 关键词：冲孔；落料 Abstract Most of mecha
nical product casi
ngs are stampi
ngs. The raise of product performa
nce depe
nds o
n the high-quality desig
n of stampi
ng mold, stampi
ng performa
nce, moldi
ng process a
nd stampi
ngs. Cold-pu
nchi
ng mould,which is about 60% of the pu
nch formi
ng, is mai
nly used i
n the metalwork moldi
ng a
nd is avery importa
nt process u
nit of stampi
ngs productio
n. Thewidespread use of pu
nch formi
ng is the fu
ndame
ntal starti
ng poi
nt of the desig
n of this paper. This paper rooted i
n real situatio
n of productio
n,whose mai
n assig
nme
ntwas fi
nishi
ng the stampi
ng die desig
n a
nd ma
nufacturi
ng simulatio
n of HP computer drive bracket. Through the compariso
n of multiple proposals, this paper adopted the progressive die system a
nd i
nstalled pierce, flexure a
nd bla
nk i
n the mould. This paper a
nalyzed stampi
ng process accordi
ng to the requests of the materials, shape, size a
nd precisio
n of the casi
ng, a
nalyzed feasibility of process, u
nfolded the spares a
nd desig
ned layout. Accordi
ng to the process cou
nti
ng result, this paper had detail desig
n o
n the mai
n parts of mould, such as, male mould, cavity die a
nd cavity-retai
ner plate, a
nd desig
ned progressive die of casi
ng. I
n this paper, gross structures of mould alsowas desig
ned, i
ncludi
ng the desig
n a
nd selectio
n of upper a
nd lower clampi
ng plate, guidi
ng post, guidi
ng bush, pu
nch pad, retai
ner plate, guide plate, stripper plate, a
nd stripper plate puller. It applied Auto CAD2004 to make i
nstallatio
n diameter a
nd part drawi
ng of progressive die mould, a
nd applied Master UG6.5 to desig
n the ma
nufacturi
ng simulatio
n of digital co
ntrol processi
ng of cavity die. . Keywards： pierce; bla
nk 目录 前言- 1- 第一，充分调研，确定应用型设计课题。- 1- 第二，反复论证，确定产品设计方案。- 1- 第三，虚心求教，仔细认真地进行设计。- 1- 第四，完善设计，准备设计答辩。- 1- 第一章绪论- 2- 1.1选题的意义与目的- 2- 1.2文献综述- 2- 1.3研究现状- 3- 1.4设计思路与创新思路- 5- 第二章垫片的冲压工艺分析7 2.1零件的材料分析7 2.2零件工艺分析7 第三章垫片复合模的工艺计算9 3.1压力的计算9 3.1.1冲裁力的计算9 3.2压力中心计算10 3.3各主要零件尺寸的计算11 3.3.1凹模厚度11 3.3.2凸模固定板的选用与厚度12 3.3.3垫板的选用与厚度13 3.3.4卸料零件的计算13 3.3.5计算凸、凹模工作部分尺寸13 3.4冲裁间隙14 3.5本章小结14 第四章复合模的零部件设计与选用15 4.1模具主要零部件的设计15 4.1.1冲裁凸、凹模的设计15 4.1.2卸料板的设计17 4.1.3其他零部件的设计17 4.2模架的设计17 4.4模具的总体结构设计18 4.5本章小结19 第5章模具制造工艺与工艺规程20 5.1模具制造工艺规程20 5.2模具制造工艺规程的技术基础20 5.3模具零件制造工艺规程的基本内容21 第6章模具的总装图22 参考文献24 总结25 致谢26