注塑模具设计与制造标准化体系的研究

模具是工业生产中的基础工艺装备,也是制造业中影响面广、使用量大的工业产品,一个国家制造业水平高低可以通过模具的技术水平的高低来衡量。提高模具设计与制造标准化水平,能够较好地提高工作效率、减少重复性的劳动。本文首先阐述了注塑模具标准化的发展,其次,探讨了注塑模具设计与制造标准化体系框架,同时,研究了注塑模具设计与制造标准化技术,具有一定的参考价值。     

基于Pro/E机械自动化软件的注塑模具的设计

计算机辅助设计（Computer-Aided Design,CAD）、计算机辅助工程（Computer-Aided Engineering,CAE）及计算机辅助制造（Computer-Aided Manufacturing,CAM）技术在模具研究设计方面是注塑模具发展过程中的重要支撑,这些技术的应用能够使得注塑模具的设计质量、水平得以提升,缩短研发周期,降低生产成本。基于此,本文针对注塑模具的技术展开了全面的研究,包括注塑模具的浇注系统设计、冷却系统设计以及数控加工等。另外,探究了如何借助Pro/E软件和建模实现数据加工编程以及模具设计,最后通过仿真模拟确定了注塑模具的NC程序,对基于Pro/E的注塑模具设计发展具有重要的参考作用。     

注塑模具的优化设计与数值模拟

本文首先应用CAD技术和热流道技术设计注塑模具结构,通过仿真分析和注塑成型优化技术分析注塑成型工艺,并初步设计注塑模具的模腔、浇注系统、排气系统、脱模机构、冷却系统、模架等。同时,探究最佳热流道浇注系统,采用正交实验法处理冷却分析结果,验证了最佳注塑工艺参数组合的可靠性。     

使用Pro/ENGINEER进行注塑模具设计

在注塑产品的开发过程中,模具的设计和制造决定了塑料件的最终质量和成本。本文以某注塑模具的设计为例,介绍了Pro/ENGINEER的特点以及在注塑模具设计中的应用,为高质量模具的设计和制造提供了一条途径。     

基于UG建模模块的注塑模具设计

信息化时代背景下,计算机信息网络技术得到全面发展,网络软件的更新换代时时刻刻都在发生着改变。UG软件是为用户产品设计及加工过程提供数字化造型和验证手段一套集成化软件,利用该软件能够对注塑模具进行设计,并可以直观的反映出模具设计的效果。本文将对UG建模模块技术在注塑模具设计中的应用,研究和分析UG软件在注塑模具中的设计方法及流程,了解其设计效果。     

组件模式在注塑模具CAD中的应用

计算机辅助设计技术在注塑模具开发中应用广泛,设计方法多样,应根据具体情况进行选择。本文以电子产品塑料外壳为例,根据产品结构特点应用Pro/ENGINEER组件模式设计注塑模具,有助于提高生产效率、降低成本。     

高效率、高品质之路--UGS注塑模具行业的设计、加工解决方案

注塑模具设计与制造对传统的CAD/CAM来说是一个挑战,功能单一的MCAD产品已经不能再满足市场的要求了,就需要一个既符合注塑模具行业流程,又具有自动化特征的计算机辅助设计与制造的软件产品.而UGS的注塑模具解决方案以知识为中心,能够紧扣住需求的脉搏,通过在集成化、相关性和数字化环境中领先的技术,在整个模具开发周期中,显著提高个人和部门的设计、生产效率.     

基于CAD的注塑模具设计与仿真研究

研究了基于CAD技术的注塑模具设计流程,并对模具的工艺参数进行了分析和优化,具体采用CAD注塑模集成系统实现。完成了最优工艺参数方案的确定,通过UG的CAE分析模块的应用并以模拟结果为依据完成了对注塑件应力应变分布情况的分析,应力最大值及位置通过实验对比完成确定,为模具结构的优化方案提供参考。最佳注塑制品工艺参数通过分析相关工艺参数获取,并以音箱零件为例,对注塑模具型腔设计方法进行了探讨。     

空气净化器壳体注塑模的CAD/CAE

一、引言车用空气净化器壳体为典型的薄壁复杂零件,其注塑过程受多方面条件影响,对注塑模进行必要的仿真分析对模具结构设计和主要工艺参数的选取都有着重要的指导意义。本文通过对某车用空气净化器壳体（以下简称净化器壳体）模具注塑情况进行的注塑过程流动仿真分析,优化得出了合理的浇注系统,设计改进了模具的具体结构,并建立了符合企业标准的模具零件库,为今后进行类似模具的设计制造提供了条件。——1计算模型的建立图1为净化器壳体的三维实体模型。由实体模型建立注塑件及模具的有限元分析模型如图2所示。根据分析目的和计算精…     

基于ARX的注塑模具CAD系统

本文介绍了AutoCAD环境下ARX应用程序的特点、类库组成和程序结构．基于ARX的开发环境构筑了注塑模具CAD系统（IMCAN）,系统能够根据输入的参数,智能性、交互性地完成注塑模具的设计,极大提高了模具设计的速度、同时给出了系统实现过程,并进行了程序举例．     

Numerical Simulation of Injection Molding Cooling Process Based on 3D Surface Model

The design of the cooling system of injection molds directly affects both productivity and the quality of the final part. Using the cooling process CAE system to instruct the mold design, the efficiency and quality of design can be improved greatly. At the same time, it is helpful to confirm the cooling system structure and optimize the process conditions. In this paper, the 3D surface model of mold cavity is used to replace the middle-plane model in the simulation by Boundary Element Metho…     

基于行人下肢防护的前保险杠改进分析

利用有限元方法,建立了小腿冲击器与汽车前部结构的碰撞模型,用以评价某款车保险杠系统对小腿损伤的影响。通过增加吸能部件、副保险杠加强板等方式减轻行人下肢的损伤,并通过正交试验设计研究了吸能部件的材料、吸能部件前后面之间的距离、副保险杠加强板的厚度以及副保险杠加强板前后面之间的距离对行人下肢损伤的影响。研究结果表明,经正交试验设计后的前保险杠系统能有效地减小小腿冲击器的胫骨加速度以及膝关节弯曲角度,使得下肢保护指标满足Eu-roNCAP法规要求。优化设计后的前保险杠系统更好的防护行人下肢的损伤。     

虚拟塑料注塑成型教学系统

塑料注射成型技术的发展与注射模具设计人员需求的增长十分迅速，模具设计人员学习必要的塑料成型基本原理是掌握注射模具设计方法的现实需要。该文在虚拟现实（VR）技术的基础上，结合基于三维模型的注塑成型FEA技术、面向对象的编程技术和OpenGL图形库，研究并实现了沉浸式、交互式的虚拟塑料注射成型教学仿真系统（VPIM），提出了立体成像算法，给出了模拟注射成型过程运动仿真的方法，借助VR外设及通过建立知识化、数字化、可视化、现实化的教学平台来提高设计人员的学习效率、学习兴趣及对问题理解的深入程度。     

冷冲压模具设计课程教学软件开发

结合飞行器制造工程专业模具设计课程的教学实际,总结和归纳了零件特点和模 具设计流程,提出了一种模具设计流程化方法,并基于 CATIA 平台开发一套用于冷冲压模具设 计的教学系统,方便教师在教学过程中能快速展示多套不同参数的模具设计过程,增强学生的 知识面,提升教学效果。     

A knowledge-based process planning system for injection mold

The goal of this study is to develop a knowledge-based process planning system interfaced with design for injection mold. Mold parts are interactively designed by using feature-based design approach, and then a part feature database is created through a data conversion module. Attribute information of the database is used as an input for the expert process design module and the standard time estimation module of the knowledge-based process planning system developed in this study. In this developed system, decision making of process design is performed by rules which were acquired from experienced process planners through interviews, and machining operation time is estimated by using empirical formulas derived from the actual shop floor data. A case example of split cavity plate is used to demonstrate the system performance.     

A multidisciplinary framework to support the design of injection mold tools

The design of injection mold tools is a complex process for which market pressures demand ever-shorter development time and higher quality level. Thus, it is considered imperative to adopt new methods and tools to support the design process, in order to achieve a more effective mold design solution. Based on this assumption, a multidisciplinary framework was developed, centered on Design for Six Sigma methodology and reinforced with a set of highly valued techniques, namely: the European Customer Satisfaction, the Axiomatic Design and the Multidisciplinary Design Optimization. As a result, a platform was built to support the design of any mold tool without undercuts, which tackles the design of an injection mold as a fully integrated multidisciplinary optimization problem, oriented by customer preferences and their impositions. A set of specific analysis sub-modules is integrated through an overseeing optimization code system, responsible for the numerical simulation of the injection process. This platform was validated through the comparison with an existing mold, whose results attained highlight the great potential of the proposed framework to achieve mold design improvement. In particular, the value of mold solutions generated led to a global improvement on mold performance by 5 %.     

Automation of mold designs with the reuse of standard parts

This study has developed an effective reuse and retrieval system that can easily register modeled standard parts using a simple GUI (graphic user interface) even though designers may not know the rules of registration for a complex database. Also, the automatic generation of the optimized parts list has been investigated. The system has been developed in the Windows XP environment using an Open API (application programming interface) and a commercial CAD/CAM/CAE solution. It consists mainly of three kinds of module, i.e., a standard part module, parts-list module, and retrieval-system module. The standard part module is helpful for designers to effectively reuse or modify standard parts after registering them using a GUI. The parts-list module generates a parts list using either standard and/or non-standard parts. The retrieval-system module allows the effective retrieval and classification of standard parts. The system was applied to standardize mold bases and mold parts. It was applied to Hyundai Heavy Industry, S. Korea, which resulted in the reduction of design errors and design time.     

并行环境下注塑件智能设计支撑技术研究

注塑件设计是注塑模设计制造的第一步,注塑件设计的优劣以及注塑件产品模型信息的完备与否,对注塑模设计制造的难易以及成形工艺参数的选择都具有十分重要的作用。本文从构造新一代注塑模设计制造系统的出发,探讨注塑件智能设计的支撑技术,提出采用并行工程设计思想,以基于特征的产品建模方法构造注塑件产品模型;结合神经网络和专家系统的特长,构造神经网络与专家系统混合系统;利用特征和知识紧密的关系,实现注塑件以及注塑     

高速机车风挡玻璃格栅模设计关键技术研究

作为一种品种多而批量小的热弯成型曲面夹层玻璃,高速机车风挡玻璃 要满足气动性、可视性和安全性等要求,模具设计是缩短研发周期和降低研发成本的关键技 术之一。从精度、重量和成本三方面对比分析了实心模、空心模和格栅模,选格栅模为热弯 成型模具。基于通用CAD 平台的设计方式,导致格栅模的设计工作具有较高的复杂度和重 复度。为了提高设计效率和设计质量,首先,在考虑热弯成型工艺的基础上,提出并实现格 栅模基平面的确定和转正方法,给出方法的流程图和具体数学公式,以及实例和数据。其次, 通过输入起止位置和型线数目实现型线自动提取、编号和记录,规范型线提取流程,给出型 线提取实例。最后,基于上述关键技术开发的专用设计软件,成功应用于北京明盾技术有限 公司系列高速机车风挡玻璃研制,给出了格栅模和风挡玻璃的实例,初步验证了方法的有效 性和软件的实用性。     

Development of an injection molding tool for complex microfluidic geometries

This paper will track the design and results of an injection molding tool developed to manufacture microfluidic chips. The mold design and injection molding process was complicated by the presence of integrated capillary fluidic interconnects. We determined that design of the runner and gate system responsible for delivering molten plastic to the cavity had a significant impact on the quality of parts produced by the mold and the size of the process window. Numerical results confirm our findings that reducing gate lengths and increasing part thickness dramatically improved the filling profile and lowered injection pressures by 37%. Finally, the influence of gate location on part shrinkage is analyzed and discussed.