汽车转向灯灯罩的注塑模具设计-斜顶抽芯注射模含NX三维及10张CAD图+说明书

A塑件三维

摘要
设计是对学生几年来所学成果的一种检验，本次设计的题目是汽车转向灯灯罩注塑模具设计，通过UG建模绘制塑件的三维图形进行分析，结合设计要求和实际生产确定模具的结构形式。首先分析塑件的分型面，在选择塑件的分型面时要保证便于脱模，塑件的分型面一般选择最大平面，保证塑件外观光滑，减少痕迹。塑件的材料选用要根据塑件在实际生活中的应用，所选择的材料要满足塑件在使用过程中的要求。然后是对出模数量的确定，出模数量要根据模具设计原则来进行确定，参考实际生产中的要求采用一模二腔。型腔布局时多采用整齐排列的方式进行排列布局，这样的结构更加的简单，实际生产中多数使用的就是这样的布局方式，更加的稳定可靠。浇口的设计也是本次设计当中的重点，浇口位置的选择非常的重要，在设计时浇口的位置要尽量的靠近塑件的中心，保证充填的均匀，在遇到塑件过长过大的时候，就需要考虑增设浇口的数量。成型零件一般选用718H作为材料，它又被叫做模具钢，钢度强度等性能都能够满足注塑的要求。型芯型腔采用潜入式的结构形式，便于更换维修，降低制造成本。塑件的顶出形式根据塑件的结构特点选择合适的顶出方式。
在对模具的设计完成后，最后进行注塑机的选择与确定，结合设计完成后的参数与注塑机进行计算校核。
关键词：分型面、成型零件、UG、校核
Abstract
Graduation design is a test of the students'achievements in the past fewyears.The title of this design is the injection mold design of the upper cover of the armrest boxin the car.The three-dimensional graphics of the plastic parts are drawn through the UG modeling for analysis,and the mold structure is determined based on the design requirements and actual production.Firstly,the parting surface of the plastic part is analyzed.When choosing the parting surface of the plastic part,it is necessaryto ensure that it is easyto demould.Generally,the parting surface of the plastic part selects the largest plane to ensure that the appearance of the plastic part is smooth and reduce traces.The material selection of plastic parts shall be based on the application of plastic parts in real life,and the selected materials shall meet the requirements of plastic parts in the use process.The first mock exam is to determine the quantityof the die,and the quantityof the die should be determined according to the design principle of the mould.A two cavityis adopted for reference in the actual production.The cavitylayout is usuallyarranged in an orderlyway,which makes the structure more simple.In actual production,most of them use this layout,which is more stable and reliable.The gate design is also the focus of this design.The gate location selection isveryimportant.In the design,the gate location should be close to the center of the plastic part as much as possible to ensure the uniformityof filling.When the plastic part is too long and too large,the number of additional gates should be considered.Generally,718H is used as the material of molding parts,which is also called die steel.The properties of steel strength can meet the requirements of injection molding.The core cavityadopts a submerged structure,which is convenient for replacement and maintenance and reduces the manufacturing cost.According to the structural characteristics of the plastic parts,the appropriate ejection form is selected.
After the completion of the mold design,the final selection and determination of the injection molding machine,combinedwith the parameters after the completion of the design and the injection molding machine for calculation andverification.
Keywords: parting surface,forming parts,UG,verification
目录
摘要I
Abstract II
第一章绪论1
1.1注塑模具的概述1
1.2注塑模具发展趋势和地位2
1.3设计思路3
1.4设计目标3
第二章产品工艺和原材料分析4
2.1塑件结构分析4
2.2塑件的工艺分析5
2.2.1塑件原材料的选择5
2.2.2塑件尺寸精度和表面质量5
2.3塑件的体积质量计算6
第三章模具结构方案的确定7
3.1出模数量与型腔布局7
3.2分型面的选择7
3.2.1分型面的设计原则7
3.2.2分型面类型的选择8
第四章浇注系统的设计9
4.1浇注系统的组成9
4.2浇注系统的设计原则9
4.3流道的设计9
4.3.1主流道的设计9
4.3.2分流道的设计10
4.3.3浇口的设计11
第五章模具成型系统的设计12
5.1型腔的结构设计12
5.2型芯结构设计12
5.3型腔成型尺寸计算13
5.4型芯成型尺寸计算14
5.5型腔零件刚度校核15
第六章模温系统设计16
6.1模温系统的概述16
6.2模温冷却系统设计要求16
6.3冷却水道的类型16
6.4冷却水道的计算校核17
第七章推出机构和排气系统的设计19
7.1脱模机构的概述19
7.2顶出机构零件19
7.3脱模力的计算19
7.4推杆强度校核19
7.5排气系统的设计20
第八章抽芯机构的设计22
8.1抽芯机构的概述22
8.2抽芯机构的计算22
第九章标准模架的选用24
9.1模架的概述24
9.2标准模架的选用24
9.3模架型号的确定24
第十章注塑机的选择与校核26
10.1注塑机的工作原理26
10.2初选注塑机型号26
10.3注塑机注射容量的校核27
10.4校核压力28
10.5校核模具安装尺寸28
10.6校核移模行程28
10.7校核注塑机锁模力28
总结30
致谢31
参考文献32

A注塑模装配图

A注塑模装配图

A塑件图

底板

顶板

斜顶

动模板

面针板

型芯

型腔

定模板

4设计所包含文件

1摘要

3字数

2目录