焊枪手柄注射成型CAD、CAE及模具设计(本科毕业论文设计)
摘 要
长期以来,在塑料制品的所有成型工艺中,注射成型应用最广泛。在传统的注射模设计过程中,对注射成型参数的选择及模体的设计都主要依靠经验值,这样不仅不够精确,而且耗费了大量的人力和物力资源,而应用计算机辅助技术就显得颇具优越性。本文的主要研究内容为利用Moldflow进行焊枪手柄的注射成型工艺分析和利用CAD进行注射模设计。Moldflow是应用最广泛的注射成型工艺分析软件,它可以预测注射成型过程中产生的缺陷,从而减少试模次数,降低模具制造成本。
文中介绍了国内塑料模具行业的现状、注塑模CAD/CAE的发展概况。本文先采用UG软件完成了塑料焊枪手柄的三维造型,然后采用Moldflow软件,对焊枪手柄注射成型过程中的流动充模阶段和冷却阶段进行了模拟仿真,对模拟结果进行分析,并得出了最佳浇口布置形式、最佳成型工艺参数及最佳冷却回路形式。在此基础上设计出了合理、可行的塑料焊枪手柄注射成型模具。
关键词:注射成型,模具设计,UG ,Moldflow ,仿真
ABSTRACT
Injection moulding is by far the most popular process for the production of plastic parts for all kind of applications. In the course of traditional design of injection moulding, the set of injection processing parameters and the designing are chiefly depend on experience, which may be not only inaccurate but also waste a large number of work and money, but with the use of computer associated technology, it has a large percent of priority. The main work of this paper are analyze the injection processing of plastic oil pipeline joints using Moldflow and the design of the injection mould using CAD. Moldflow is one of the most widely used analyze software which can predict the defaults in the injection processing, thus can reduce the number of trying and the cost.
This paper introduce the present status of the plastic moulding, the development of injection moulding CAD/CAE. It uses the software UG to model the plastic welding torch shaft, and then use the software Moldflow to perform the simulation of the filling phase and the cooling phase of the procession, and make analysis of the results of the simulation, acquire the final optimal entrance location, optimal processing parameters and the optimal cooling circle; With the results, it designs the reasonable and feasible injection mold for the welding torch shaft.
Keywords : injection processing, mould design ,UG , Moldflow, simulation
目 录
中文摘要 Ⅰ
ABSTRACT Ⅱ
1绪论 1
1.1 塑料制品行业及我国塑料模的发展情况 1
1.2本课题的主要研究内容和任务 2
1.3计算机辅助技术在注薂@尚椭械挠τ 2
2焊枪手柄的三维实体建模 4
3焊枪手柄注射成型CAE 7
3.1MOLDFLOW软件主要可供分析类型及作用 7
3.2MOLDFLOW模拟前期准备 8
3.2.1模型转换及有限元网格划分 8
3.2.2焊枪手柄成型材料选择 9
3.2.3最佳浇口位置选择 9
3.2.4一模多腔布局的选定 10
3.2.5进料点位置的设定 11
3.2.6冷却系统的设定 12
3.3分析计算 16
3.3.1填充时间分析 16
3.3.2流动前沿温度分析 16
3.3.3注塑口位置压力分析 17
3.4模拟结果 18
4模具设计 19
4.1注射机的选择和校核 19
4.1.1注射机的选择 19
4.1.2注射机的校核 20
4.2浇注系统设计 22
4.2.1主流道设计 23
4.2.2分流道设计 24
4.2.3浇口设计 25
4.2.4冷料穴设计 26
4.3成型零部件设计.........................................................26
4.3.1分型面的选择........................................................27
4.3.2模具成型零部件结构设计..............................................27
4.4冷却系统设计............................................................30
4.5模具材料选用............................................................31
5结论......................................................................32
参考文献...................................................................33