机械5

我国注塑模具工业的发展日益壮大，受到了越来越多人们的关注，在电子、汽车、电机电器、仪器、仪表、家电和通信等产品中，60%-80%的零部件现在都需要模具成型。用注塑模具生产制件所具备的高精度、高复杂程度、高一致性、高生产率是其他加工制造所不能比拟的，随着需求的上升，精度与要求也一直在提高，传统模具的设计方法已不能满足人们对于模具的要求，利用CAD/CAE/CAM的设计制造注塑模具也成为了模具设计的主流。本次设计在了解一定的本行业的发展和知识的基础出发，选用UG NX8.5为工具，进行本次面板注射模具成型部件的设计及数控加工编程，主要包括： 1.塑件的工艺性分析通过其外观与用途确定塑件的材料，计算注塑量确定注塑机的型号，完成数据校核，根据塑件材料与外观选择的塑件精度。 2.成型部件设计，包括型腔的布局与排列方式，分型面的设计与选取，实现分模，根据成型部件的尺寸确定模架，确定成型部件与模具的定位方式、设计浇注系统、顶出方式、冷却系统、排气方案、生成三维模具图。 3.分析优化加工编程方案，进行成型部件工艺方案分析，采用对比的方式进行加工编程优化加工方法，根据要求与机床参数制作后处理文件。 4.使用自己设计的后处理文件进行文件后处理，生成NC代码，加工工单与机床装夹图。 本次设计完成了对塑件的成型部件设计与数控加工编程，对于UG的使用与操作得到长足的进步，现在UG已经成为了UG建模加工设计的主流软件，UG的出现让现在制造设计行业的精度与加工编程迅速的发展了起来，学习使用UG会给我们在参加工作之前打下了一定的坚实基矗这将让我们拥有更好的就业与择业机会。 关键词：注塑模具；成型部件设计；数控编程 I
njectio
n mold i
ndustry growi
ng i
n our cou
ntry, has bee
n more a
nd more people's atte
ntio
n, i
n the electro
nic, automobile, electrical applia
nces, i
nstrume
nts, meters, household applia
nces a
nd commu
nicatio
n products, such as 60% - 80% of the parts are
now
need to mold desig
n. Used as a
n i
njectio
n mold productio
n parts with high precisio
n, high complexity, high co
nsiste
ncy, high productivity,that is ca
n't be matched by other processi
ng a
nd ma
nufacturi
ng, with risi
ng dema
nd, the precisio
n a
nd requireme
nts have also bee
n improved, the traditio
nal mould desig
n method ca
n
not meet the requireme
nts of people for the mould, usi
ng CAD/CAE/CAM desig
n a
nd ma
nufacture of i
njectio
n mold has become the mai
nstream of the mold desig
n. The graduatio
n desig
n i
n the basis of the u
ndersta
ndi
ng of the developme
nt of the i
ndustry a
nd k
nowledge, the selectio
n of UG NX8.5 as tools, for the desig
n of the pa
nel of i
njectio
n moldi
ng parts a
nd
nc machi
ni
ng programmi
ng, mai
nly i
ncludes: 1.Plastic parts ma
nufacturability a
nalysis determi
ned by its appeara
nce a
nd use plastic material, i
njectio
n qua
ntity calculatio
n method of i
njectio
n moldi
ng machi
ne models, data checki
ng, choose accordi
ng to parts material a
nd the appeara
nce of precisio
n plastic parts. 2.The formi
ng parts desig
n, i
ncludi
ng the layout of the cavity a
nd arra
ngeme
nt, the parti
ng surface desig
n a
nd selectio
n of parti
ng, accordi
ng to the size of the moldi
ng parts die set, determi
ne the formi
ng parts a
nd mould positio
ni
ng mode, desig
n of gati
ng system, ejector mode, cooli
ng system, exhaust scheme, ge
nerate 3 d mold drawi
ng. 3.A
nalysis to optimize the processi
ng programmi
ng scheme, formi
ng parts process scheme a
nalysis, adopt the way of co
ntrast to machi
ni
ng programmi
ng optimizatio
n method, accordi
ng to the requireme
nts to produce post-processi
ng docume
nts a
nd machi
ne parameters. Use your ow
n post-processi
ng file to process the file, ge
nerate NC code, machi
ned worksheet a
nd machi
ne tool folder. Completed the graduatio
n desig
n of plastic parts moldi
ng parts desig
n a
nd
nc machi
ni
ng programmi
ng, for the use of UG a
nd get great progress operatio
n, UG
now has become the mai
nstream software UG modeli
ng processi
ng desig
n, the appeara
nce of UG to desig
n ma
nufacturi
ng i
ndustry
now the rapid developme
nt of the precisio
n a
nd machi
ni
ng programmi
ng, lear
ni
ng to use UG will give us before have a job laid a solid fou
ndatio
n. This will give us better jobs a
nd better career opportu
nities. Key Words：I
njectio
n Mold; Molded Parts Desig
n; CNC Programmi
ng 摘要I ABSTRACT II 1绪论1 1.1设计主要内容1 1.2模具在我国的发展历程1 1.3塑料制品和注射成形在模具业的重要地位2 1.4注塑模具的设计2 1.5数控加工编程3 1.6解决方案总结4 2塑件的工艺性设计6 2.1塑件工艺性的分析6 2.2塑件的体积6 2.3注塑材料的选择10 2.4塑件的尺寸与公差10 3成型部件设计12 3.1排位和布局12 3.2分型面的设计14 3.3模架的选择17 3.4模芯的紧固18 3.5浇注系统设计19 3.6模具镶件设计22 3.7冷却方案23 3.8顶出系统24 3.9排气方案25 4数控编程27 4.1工艺方案分析27 4.2成型部件的数控加工编程29 4.3后置处理45 5结论50 参考文献51 附录1：外文翻译52 附录1：外文原文58 附录3：材料清单64 致谢65