机械5

电话机上壳注塑模设计 摘要 根据塑料电话机上壳的要求，了解塑件的用途，分析塑件的工艺性、尺寸精度等技术要求，选择塑件制件尺寸。本模具采用一模二件，侧浇口进料，注射机采用海天200XB型号，设置冷却系统，CAD和UG绘制二维总装图和零件图，选择模具合理的加工方法。附上说明书，系统地运用简要的文字，简明的示意图和和计算等分析塑件，从而作出合理的注塑模具设计。 按国家职业定义，模具设计是：从事企业模具的数字化设计，包括型腔模与冷冲模，在传统模具设计的基础上，充分应用数字化设计工具，提高模具设计质量，缩短模具设计周期的人员。 模具，是以特定的结构形式通过一定方式使材料成型的一种工业产品，同时也是能成批生产出具有一定形状和尺寸要求的工业产品零部件的一种生产工具。大到飞机、汽车，小到茶杯、钉子，几乎所有的工业产品都必须依靠模具成型。用模具生产制件所具备的高精度、高一致性、高生产率是任何其它加工方法所不能比拟的。模具在很大程度上决定着产品的质量、效益和新产品开发能力。所以模具又有“工业之母”的荣誉称号。 模具设计与制造专业的培养目标是：培养德、智、体、美等方面全面发展，具有良好的职业素质，面向制造行业，从事模具设计、模具加工工艺编制、冲压和塑料成型加工、数控机床的操作以及生产管理等工作的高等技术应用性专门人才。体现为制造方面达到模具制造的补师水平，设计方面达到助理设计师的水平 关键词：电话机上壳；一模二件；侧浇口进料；注射机，冷却系统；注塑模具 Abstract Accordi
ng to the requireme
nts of the shell of the plastic telepho
ne, the use of the plastic parts is u
nderstood, the tech
nological requireme
nts of the plastic parts, the dime
nsio
nal precisio
n a
nd so o
n are a
nalyzed, a
nd the size of the parts of the plastic parts is selected. This mold adopts the first mock exam two, side gate, i
njectio
n machi
ne adopts the Haitia
n 200XB model, set cooli
ng system, CAD a
nd UG drawi
ng two-dime
nsio
nal assembly a
nd parts drawi
ng, choose the reaso
nable processi
ng method of mould. The i
nstructio
ns are attached, a
nd the simple text, simple schematic a
nd calculatio
n are used to a
nalyze the plastic parts so as to make a reaso
nable desig
n of the i
njectio
n mold. Accordi
ng to the defi
nitio
n of the
natio
nal occupatio
n, the mold desig
n is to e
ngage i
n the digitalized desig
n of the die, i
ncludi
ng the cavity mold a
nd the cold die, a
nd apply the digitalized desig
n tools to improve the quality of mold desig
n a
nd shorte
n the desig
n period o
n the basis of the traditio
nal mold desig
n. Mold is a ki
nd of i
ndustrial product that moulds materials i
n certai
nways i
n a specific structure form. It is also a productio
n tool that ca
n produce parts of i
ndustrial productswith certai
n shape a
nd size requireme
nts i
n batches. As large as aircraft, cars, small cups,
nails, almost all i
ndustrial products must be moulded. The high precisio
n, high co
nsiste
ncy a
nd high productivity produced by the mold productio
n are i
ncomparable to a
ny other processi
ng methods. To a great exte
nt, the mould determi
nes the quality, be
nefit a
nd the developme
nt ability of the
new product. So the mold also has the ho
norary title of"the mother of i
ndustry". Trai
ni
ng target of mold desig
n a
nd ma
nufacturi
ng specialty is to cultivate all-rou
nd developme
nt of morality, i
ntellige
nce, body, beauty, good occupatio
n quality, ma
nufacturi
ng i
ndustry, adva
nced tech
nology a
nd specialized perso
n
nel e
ngaged i
n mold desig
n, process desig
n, mold stampi
ng a
nd plastic moldi
ng processi
ng, CNC machi
ne tool operatio
n a
nd productio
n ma
nageme
ntwork. To achieve the level of mould maki
ng i
n ma
nufacturi
ng, a
nd to achieve the level of assista
nt desig
ner i
n desig
n. Keywords: telepho
ne shell; the first mock exam two; side gate feedi
ng; i
njectio
n machi
ne, i
njectio
n mold cooli
ng system; 目录 摘要I Abstract II 第1章绪论- 1- 1.1塑料简介- 1- 1.2注塑成型及注塑模- 1- 第2章塑料材料分析- 3- 2.1材料性能- 3- 2.2成型特性和条件- 3- 第3章塑件的工艺分析- 4- 3．1塑件的结构设计- 5- 3．2塑件尺寸及精度- 6- 3．3塑件表面粗糙度- 6- 3．4塑件的体积和质量- 7- 第4章注射成型工艺方案及结构的分析和确定- 7- 4．1注射成型工艺过程分析[5]- 7- 4．2浇口种类的确定- 8- 4．3型腔数目的确定- 8- 4．4注射机的选择和校核- 8- 4.4.1注射量的校核- 9- 4.4.2塑件在分型面上的投影面积与锁模力的校核- 10- 4．4．3模具与注射机安装模具部分相关尺寸校核- 10- 第5章注射模具结构设计- 11- 5．1分型面的设计- 11- 5．2型腔的布局- 12- 5．3浇注系统的设计- 14- 5．3．1浇注系统组成- 14- 5．3．2确定浇注系统的原则- 14- 5．3．3主流道的设计- 15- 5．3．4分流道的设计- 17- 5．3．5浇口的设计- 19- 5．3．6冷料穴的设计- 19- 5．4注射模成型零部件的设计[7]- 20- 5．4．1成型零部件结构设计- 20- 5．4．2成型零部件工作尺寸的计算- 22- 5．5排气结构设计- 22- 5．6脱模机构的设计- 22- 5．6．1脱模机构的选用原则- 22- 5．6．2脱模机构类型的选择- 23- 5．6．3推杆机构具体设计- 23- 5．7注射模温度调节系统- 24- 5．7．1温度调节对塑件质量的影响- 24- 5．7．2冷却系统之设计规则- 24- 5．8模架的选用- 25- 5.9斜顶机构的设计- 26- 第6章模具材料的选用- 28- 6．1成型零件材料选用- 28- 6．2注射模用钢种- 28- 总结- 29- 致谢- 31- 参考文献- 32-