摘要:模具是工业生产中的重要工艺装备,是国民经济各部门发展的重要基础之一。由于我国塑料工业的快速发展,特别是工程塑料的高速发展。今后我国塑料模具的发展速度仍将继续高于模具工业的整体发展速度。随着CAD/CAE/CAM软件智能化的高速发展,塑料制件及模具的3D设计与成型过程中的CAE分析,将在我国塑料模具工业中发挥越来越重要的作用。本次设计的课题是“控制机扳手成型工艺及注射模设计”。通过对其的工艺性分析,了解其生产技术要求,结合生产的实际环境和制造工艺性等,对其进行了注塑模具设计。包括注塑成型工艺过程、分模面的设计、型腔设计、型芯设计、具体结构设计、零件工艺性分析、标准件的选用。详细介绍了分型面、型腔布置、浇注系统、排气系统、加热、冷却系统、顶出机构、脱模机构以及主要零部件的设计过程。在设计中采用了新的设计思想和新的设计流程,即在整个设计周期内使用使用相同的三文实体模型,以及使用一个基于知识库的三文辅助设计系统,从而降低了成本,缩短生产了周期,提高了生产效率。5479
关键词:塑料模具;注射成型;模具结构; 模具分析; CAD/CAM/CAE
Control machine wrench molding process and design of injection mold
Abstract: The time,The mold is an important technical equipment in the industrial producing and an important basis in kinds of department’s developing in nation’s economy. Because of the rapid development of China’s plastic industry , especially in the aspect of engineering plastic. The plastic mold will develop more rapid than the whole mold industry in our country in the future. With the CAD/CAE/CAM software’s fast developing in intelligence, the plastic work pieces, the mold’s 3D design and its shaping process’ computer aided engineering will play an important role in our country’s plastic mold industry more and more. The subject of this design is “Control machine wrench molding process and design of injection mold”.Analysis the Manufacturing capacity for the rear view mirror, realizing its technical specifications and coal the practicality cases of production and manufacture-ability will be done to design the injection plastics mold. The plastic injection mold design includes the injection molding technological process, the parting surface design, the cavity design, the core design, the particular structural design, the parts craft analysis and the choice for standard components,etc. It is detailed in introducing the piding plane, cavity disposing, the gating system, the gas withdrawal system, the heating or cooling system, the pack out or porce mechanism,and the design process for the mostly parts. The new design concepts and new design methods are adopted in the design process. Lower costs, shorten production cycles and increased productive efficiency, as using three-dimensional CAD solid model and a 3D CAD knowledge-based assisted injection mold design system for all phases of the product-mold development life cycle.
Key words: plastic mold; injecting shape; mold structure; mold analyzing; CAD/CAE/CAM
目 录
引言1
1 产品说明 2
2 塑件的分析 3
2.1 工艺条件3
2.1.1 材料 3
2.1.2 注塑机注射条件 3
2.2 PA66材料分析4
2.3 塑件的体积和重量的计算5
2.3.1 利用NX 7.5进行提及的计算 5
2.3.2 产品质量计算 5
3 注射机的型号和规格选择及校核 6
3.1 注塑机的选用 6
3.2 注射压力的校核 6
3.3 锁模力的校核 7
3.4 开模行程与推出机构的校核 7
3.4.1 当开模行程与模具厚度无关时 7
3.4.2 推出机构的校核 8
4 分型面的选择 9 控制机扳手成型工艺及注射模设计+CAD图纸+答辩PPT:http://www.youerw.com/jixie/lunwen_2520.html