《汽车前大灯位置灯罩塑料模具设计及成型过程分析》-毕业设计（论文）.doc

哈尔滨工业大学工学硕士学位论文 哈尔滨理工大学学士学位论文 - PAGE II - - PAGE III - 汽车前大灯位置灯罩 塑料模具设计及成型过程分析 摘要 随着国民经济的高速发展，市场对模具的需求量不断增长，模具CAD/CAM/CAE技术是模具设计制造的发展方向。在机械零件及模具设计中，零部件如何装配、加工、各零部件是否发生干涉、可视化设计等方面已能够实现，且具有了很实际的意义。 本文选用了三维设计软件Pro/ENGINEER，论述了如何运用Pro/ENGINEER软件进行前大灯位置灯罩造型，设计出浇注系统及各零部件，最后运用设计出标准模架的整个流程。 本设计应用Plastic Advisor对塑件的注射成型过程进行仿真分析。仿真分析部分主要是对塑料熔体在注射成型过程中的填充状态、注射压力变化、温度变化、熔接痕和气孔等情况进行分析。通过分析可以直观地反映注射成型过程中的各种缺陷，使得在设计的初始阶段就发现问题，然后优化和完善设计。 通过以前大灯位置灯罩为例来研究模具及模具CAD/CAE/CAM在塑料制品及塑料注射模设计、模拟集成设计的全过程，提出了以信息技术来带动和提升塑料注射模具发展的模式。在确定设计方案和模具结构后，应用 Pro/ENGINEER WILDFIRE 3.0直观地反映注射成型中的各种缺陷，以优化、完善设计，然后应用Pro/ENGINEER WILDFIRE 3.0对塑件进行型腔设计，最后应用EMX模架软件装配模架，生成三维装配图及爆炸图。 关键词　注塑模具设计；Pro/ENGINEER；CAD/CAM The plastic injection modle design and the formation analysis of former headlight sidelight Abstract Along with national economy high speed development, the demand of mold in the market has increased. However, the technology of CAD/CAM/CAE has been used in the mold design and manufacturing. In the machine elements and die designing，how to assemble parts、process、whether each spare occur interference, visual design has been able to realize, and play a great practical signification. In the modern industry, the application of mold has been used more and more, a great variety, more complexity in internal structure, more costly about manufacturing cost. In this paper, the choice of three-dimensional design software Pro/ ENGINEER discusses how to use Pro/ENGINEER software headlights position Dengzhao modeling, system design and casting parts, the final use of a standard model-design the whole process. Plastic Advisor of the design of plastic parts for injection molding process simulation analysis. Simulation of the main part of the melt in the plastic injection molding in the process of filling state, injection pressure, temperature changes, weld marks and porosity, and so on for analysis. Through analysis of injection molding directly reflected in the course of the various defects i