摘 要
毕业设计是我大学期间最后一次课程设计，这次设计是对我们四年大学所学到知识的全面训练。模具设计是一项很繁琐复杂的工作，设计一副好的模具，其中牵涉到许多的内容以及工艺，一套模具有多种工艺方案，在进行的比较中需要考虑的内容包括对塑件成型工艺的分析，如何确定分型面和型腔数目。确定模具的总体结构、型腔、型芯的结构，同时还考虑了模具制造工艺的可行性以及模具制造的经济性。本论文全面介绍该活塞模具的设计过程以及遇到问题解决的方法，该设计从模具结构出发，详细介绍浇注系统、模具成型部分的结构、顶出系统、冷却系统等。最终完成该产品的设计。本设计进行了玩具卡车发动机活塞注塑模具设计,详细阐述了采用UG进行注塑模具设计的基本流程以及模具各部分结构的设计过程，包括玩具卡车发动机活塞的三维造型以及注射模型腔数量和布局的确定、注射机选择、浇注系统设计、模板及标准件的选用、脱模及抽芯机构的设计、成型零件的设计计算等，并根据玩具卡车发动机活塞注塑模具的要求对注射机的各参数进行了校核。同时利用AutoCAD软件绘制了一套模具的装配图和零件图。关键词:模具；设计；UG；冷却系统;结构
Plastic injection modle design of toy truck engine’s pistonAbstract
During my college graduation design is the final course design.It’s designed for our four-year university learned knowledge comprehensive training. The mould design is a very complex work ,because involves many content and process. A set of mould has a variety of process, in comparing to consider the plastic molding process analysis and how to determine the parting surface and cavity number. Determine the overall structure, mould cavity, core structure, also consider the mould manufacturing technology of the feasibility and efficiency of mould manufacturing. This paper introduces the overall design of the mould process and problems solving methods and introduce gating system, its molding part of the structure and the system, cooling system, etc. Finally completed the design of the product. he design of the toy truck engines pistons injection mould design, expounds on using UG injection mold design process as well as the basic structure of mould parts of the design process, including the toy truck engines pistons three-dimensional modelling and injection mould cavity number and layout, injection machine, gating system design, selection and standard template and stripping and core-pulling mechanism design, molding parts design calculation, and according to the toy truck engines pistons injection mould for the requirements of various parameters on injection machine. While using AutoCAD software rendering a set of mold assembly and detail drawings.
Keywords: Modle ;Design;UG;Cooling system; Structure
