基于NX的仪器盒内抽芯模具设计 摘要 由于当今对科技的要求逐日增强，对零件的结构性能是一大考验，这激发了模具行业中模具设计向着更复杂、更精密的方向发展。早在很久之前，在普通的零件上就常有一些斜槽或者内扣等技术要求较高的部分，对于这一情况需要借助内抽芯机构或者其他方式，使零件达到技术要求。 本设计的主要任务是基于NX的仪器盒内抽芯模具设计，详细来讲模具结构为一模二腔的一次分型打开的两板式模具。模具中设计了一种特殊的内置式抽芯机构，因为零件的内壁上存在有一个内扣结构，必须增加有内抽芯机构才能满足结构性要求，但是这个内抽芯结构的加入大大增加了该机构的复杂度。该设计通过借助NX6.0 moldwizard模块进行模具设计，鉴于本研究的是仪器盒内内抽芯模具是设计，零件的大概轮廓以面壳类零件为主，先是借助NX6.0软件设计出零件的图纸，再在注塑模导向模板分别进行凸凹模、模架、浇注系统和冷却系统等方面的设计。 因为不同版本的UGNX模块系统有些许不同，本文还将针对NX6.0系统进行详细的步骤分析，与此同时在设计中考虑到实际产品的质量要求和工艺要求，给出了合理且可行的设计方案，抽芯机构、推杆等在模具中的布置问题都考虑在了设计过程中。 总之，此设计是结合了在校期间所学的知识，再结合长期学习积累的经验，借助UGNX6软件进行模具设计。 关键词：模具设计；内抽芯；抽芯机构；注塑模 Abstract As the requireme
nt of scie
nce a
nd tech
nology is i
ncreasi
ng day by day, the structural performa
nce of parts is a big test,which stimulates the mold desig
n i
n the mold i
ndustry to develop towards more complex a
nd more precise directio
n.As early as a lo
ng time ago, therewere some partswith high tech
nical requireme
nts, such as chute or reverse buckle, o
n the commo
n parts. For this situatio
n, it is
necessary to use the i
nter
nal core pulli
ng mecha
nism or otherways to make the parts meet the tech
nical requireme
nts. The mai
n task of the desig
n is based o
n the first mock exam of the NX i
nstrume
nt box, a
nd the die structure is two diewith o
ne mold a
nd two cavities.A special built-i
n core pulli
ng mecha
nism is desig
ned i
n the die, because there is a reverse buckle structure o
n the i
n
nerwall of the part,The i
nter
nal core pulli
ng mecha
nism must be added to meet the structural requireme
nts, but the additio
n of the i
nter
nal core pulli
ng structure greatly i
ncreases the complexity of the mecha
nism.This desig
n is based o
n
nx6.0 Moldwizard module. I
nview of the fact that this paper studies the desig
n of the core pulli
ng mold i
n the i
nstrume
nt box, the ge
neral outli
ne of the parts is mai
nly the surface a
nd shell parts,First, the part drawi
ng is desig
nedwith
nx6.0 software, a
nd the
n the co
nvex a
nd co
ncave mold, mold base, pouri
ng system a
nd cooli
ng system are desig
ned i
n the i
njectio
n mold guide template. Because differe
ntversio
ns of UGNX module system are slightly differe
nt, this paperwill also carry out detailed step a
nalysis for
nx6.0 system, at the same time, co
nsideri
ng the quality requireme
nts a
nd process requireme
nts of actual products i
n the desig
n, give a reaso
nable a
nd feasible desig
n scheme, a
nd the layout of core pulli
ng mecha
nism, push rod a
nd other issues i
n the mold are co
nsidered i
n the desig
n process. I
n aword, this desig
n is a combi
natio
n of the k
nowledge lear
ned i
n school, combi
nedwith lo
ng-term lear
ni
ng experie
nce,with the help of ug
nx6 software for mold desig
n. Key Word:Mould desig
n; I
n
ner core pulli
ng; Core pulli
ng mecha
nism; I
njectio
n mold 目录 第一章绪论1 1.1.本文研究的背景1 1.2.模具产业国内外发展及国内技术性发展趋势分析2 第二章本课题研究内容及可行性分析4 2.1.塑件结构分析4 2.2.选用ABS材料的原因分析5 2.3.脱模难点分析5 2.4.设计方案的拟定5 第三章模具结构设计7 3.1.注塑模设计预处理7 3.2注塑模具体设计过程8 3.3添加内抽芯及标准部件11 3.4浇注系统设计13 3.5冷却系统设计13 3.6模具设计最终确定14 第四章模具开模的运动仿真16 4.1进行运动仿真的目的16 4.2运动仿真的实现16 4.3开始运动仿真17 4.4创建运动动画18 第五章模具结构稳定性分析20 5.1模具装配图结构分析20 5.2内滑块设计的注意要点20 5.3其他结构分析20 5.4二维分析及设计总结22 5.4.2模具爆炸图22 5.4.3仪器盒内抽芯模具设计总结23 5.5仪器盒注塑模具的部分零件图23 结束语26 致谢27 参考文献28