模具设计开题报告

本科毕业设计(论文)开题报告一、课题研究的目的和意义模具是用来成型物品的工具,这种工具由各种零件构成,不同的模具由不同的零件构成。

它主要通过所成型材料物理状态的改变来实现物品外形的加工。

模具是机械制造业中技术先进、影响深远的重要工艺装备,具有生产效率高、材料利用率高、制件质量优良、工艺适应性好等特点,被广泛应用于汽车、机械、航天、航空、轻工、电子、电器、仪表等行业。

该课题主要是设计180#柴油机通风口座子拉深模。

让我们在以往对模具设计学习的基础上熟悉冲压模具的设计流程,它既是一次对我们学习模具的检阅也是一次综合运用能力的锻炼。

通过毕业设计,应使自己在下述基本能力上得到培养和锻炼:1、了解冲压模具设计的原理和方法;2、学会利用Auto CAD、Pro/E等软件进行模具设计;3、初步学会优化分析和设计。

二、国内外研究现状模具生产技术水平的高低,已成为衡量一个国家产品制造水平高低的重要标志,因为模具在很大程度上决定着产品的质量、效益和新产品的开发能力。

中国经济的高速发展对模具工业提出了越来越高的要求,也为其发展提供了巨大的动力。

近10年来,中国模具工业一直以每年15%左右的增长速度快速发展。

但与发达国家相比,中国模具工业无论在技术上,还是在管理上,都存在较大差距。

特别在大型、精密、复杂、长寿命模具技术上,差距尤为明显。

中国每年需要大量进口此类模具,在模具产品结构上,中低档模具相对过剩,市场竞争加剧价格偏低,降低了许多模具企业的效益。

而中高档模具能力不足,模具的开发能力较弱,技术人才严重不足,科研开发和技术攻关投入少等一系列问题,严重制约了中国模具行业的发展。

近年来,我国大型冲压模具已能生产单套重量达50多吨的模具。

为中档轿车配套的覆盖件模具国内也能生产了。

精度达到1~2μm,寿命2亿次左右的多工位级进模国内已有多家企业能够生产。

表面粗糙度达到Ra≤1.5μm 的精冲模,大尺寸(φ≥300mm)精冲模及中厚板精冲模国内也已达到相当高的水平。

模具技术的发展应该为适应模具产品“交货期短”、“精度高”、“质量好”、“价格低”的要求服务。

达到这一要求急需发展如下几项:(1)全面推广CAD/CAM/CAE技术;(2)高速铣削加工;(3)模具扫描及数字化系统;(4)电火花铣削加工;(5)提高模具标准化程度;(6)优质材料及先进表面处理技术;(7)模具研磨抛光将自动化、智能化;(8)模具自动加工系统的发展。

三、主要研究内容(1)了解拉深模结构,特别是拉深模设计的原理和方法以及步骤。

(2)了解模具设计最新的发展方向等。

了解拉深模的特点,设计180#柴油机通风口座子拉深模,确定拉深次数。

了解模具行业及材料成型行业的现状和今后的发展趋势。

四、技术方法(1)结合设计课题进行文献检索。

(2)有条件的外出参观实习对拉深模具有更进一步的了解。

(3)在导师指导下独立完成模具的总体设计。

(4)学会幻灯片PPT的制作按照规范格式撰写毕业设计说明书。

参考文献(1).魏春雷等。

冲压工艺与模具设计。

北京:北京理工大学出版社,2012(2).佘银柱。

冲压工艺与模具设计。

北京:北京大学出版社,2005(3).付宏生。

冷冲压成形工艺与模具设计制造。

北京:化学工业出版社,2005(4).陈蕴博等。

冷作模具用材及热处理。

北京:机械工业出版社,1986(5).王孝培。

冲压手册。

北京:机械工业出版社,2004(6).中国模具设计大典编委会。

中国模具设计大典。

南昌:江西科学技术出版社,2003(7).冲模设计手册编写组。

冲模设计手册。

北京:机械工业出版社,1982(8).李天佑《冲模图册》北京:机械工业出版社,2003Die history1Die position in industrial productionMold is a high-volume products with the shape tool,is the main process of industrial production equipment.With mold components,with high efficiency,good quality,low cost,saving energy and raw materials and a series of advantages,with the mold workpieces possess high accuracy,high complexity,high consistency,high productivity and low consumption, other manufacturing methods can not match.Have already become an important means of industrial production and technological development.The basis of the modern industrial economy.The development of modern industrial and technological level depends largely on the level of industrial development die,so die industry to national economic and social development will play an increasing role.March1989the State Council promulgated"on the current industrial policy decision points"in the mold as the machinery industry transformation sequence of the first,production and capital construction of the second sequence(after the large-scale power generation equipment and the corresponding power transmission equipment),establish tooling industry in an important position in the national economy.Since1997,they have to mold and its processing technology and equipment included in the"current national focus on encouraging the development of industries,products and technologies catalog"and "to encourage foreign investment industry directory."Approved by the State Council,from1997to2000,more than80professional mold factory owned70% VAT refund of preferential policies to support mold industry.All these have fully demonstrated the development of the State Council and state departments tooling industry attention and support.Mold around the world about the current annual output of60billion U.S.dollars,Japan,the United States and other industrialized countries die of industrial output value of more than machine tool industry,beginning in1997,China's industrial output value has exceeded the mold machine tool industry output.According to statistics,home appliances,toys and other light industries,nearly90% of the parts are integrated with production of chopsticks;in aircraft,automobiles, agricultural machinery and radio industries,the proportion exceeded60%.Such as aircraft manufacturing,the use of a certain type of fighter dies more than30,000units, of which the host8000sets,2000sets of engines,auxiliary20000sets.From the output of view,since the80's,the United States,Japan and other industrialized countries die industry output value has exceeded the machine tool industry,and there are still rising.Production technology,according to the International Association predicts that in2000,the product best pieces of rough75%,50%will be finished mold completed;metals,plastics,ceramics,rubber,building materials and other industrial products,most of the mold will be completed in more than50%metal plates,more than80%of all plastic products,especially through the mold into.2China's mold industry and its development trend Die&Mould Industry StatusDue to historical reasons for the formation of closed,"big and complete"enterprise features,most enterprises in China are equipped with mold workshop,in factory matching status since the late70s have a mold the concept of industrialization and specialization of production.Production efficiency is not high,poor economic returns.Mold production industry is small and scattered,cross-industry, capital-intensive,professional,commercial and technical management level are relatively low.According to incomplete statistics,there are now specialized in manufacturing mold,the product supporting mold factory workshop(factory)near17000,about600 000employees,annual output value reached20billion yuan mold.However,the existing capacity of the mold and die industry can only meet the demand of60%,still can not meet the needs of national economic development.At present,the domestic needs of large,sophisticated,complex and long life of the mold also rely mainly onimports.According to customs statistics,in1997630million U.S.dollars worth of imports mold,not including the import of mold together with the equipment;in1997 only78million U.S.dollars export mold.At present the technological level of China Die&Mould Industry and manufacturing capacity,China's national economy in the weak links and bottlenecks constraining sustainable economic development.2.1Research on the Structure of industrial products moldIn accordance with the division of China Mould Industry Association,China mold is divided into10basic categories,which,stamping die and plastic molding two categories accounted for the main part.Calculated by output,present,China accounts for about50%die stamping,plastic molding die about20%,Wire Drawing Die(Tool)about10%of the world's advanced industrial countries and regions,the proportion of plastic forming die die general of the total output value40%.Most of our stamping die mold for the simple,single-process mode and meet the molds,precision die,precision multi-position progressive die is also one of the few, die less than100million times the average life of the mold reached100million times the maximum life of more than accuracy3~5um,more than50progressive station, and the international life of the die600million times the highest average life of the die50million times compared to the mid80s at the international advanced level.China's plastic molding mold design,production technology started relatively late, the overall level of low.Currently a single cavity,a simple mold cavity70%,and still dominant.A sophisticated multi-cavity mold plastic injection mold,plastic injection mold has been able to multi-color preliminary design and manufacturing. Mould is about80million times the average life span is about,the main difference is the large deformation of mold components,excess burr side of a large,poor surface quality,erosion and corrosion serious mold cavity,the mold cavity exhaust poor and vulnerable such as,injection mold5um accuracy has reached below the highest life expectancy has exceeded20million times,the number has more than100chamber cavity,reaching the mid80s to early90s the international advanced level.2.2mold Present Status of TechnologyTechnical level of China's mold industry currently uneven,with wide disparities. Generally speaking,with the developed industrial countries,Hong Kong and Taiwan advanced level,there is a large gap.The use of CAD/CAM/CAE/CAPP and other technical design and manufacture molds,both wide application,or technical level,there is a big gap between both.In the application of CAD technology design molds,only about10%of the mold used in the design of CAD,aside from drawing board still has a long way to go;in the application of CAE design and analysis of mold calculation,it was just started,most of the game is still in trial stages and animation;in the application of CAM technology manufacturing molds,first,the lack of advanced manufacturing equipment,and second,the existing process equipment(including the last10years the introduction of advanced equipment)or computer standard(IBM PC and compatibles, HP workstations,etc.)different,or because of differences in bytes,processing speed differences,differences in resistance to electromagnetic interference,networking is low,only about5%of the mold manufacturing equipment of recent work in this task; in the application process planning CAPP technology,basically a blank state,based on the need for a lot of standardization work;in the mold common technology,such as mold rapid prototyping technology,polishing,electroforming technologies,surface treatment technology aspects of CAD/CAM technology in China has just started. Computer-aided technology,software development,is still at low level,the accumulation of knowledge and experience required.Most of our mold factory, mold processing equipment shop old,long in the length of civilian service,accuracy, low efficiency,still use the ordinary forging,turning,milling,planing,drilling, grinding and processing equipment,mold,heat treatment is still in use salt bath, box-type furnace,operating with the experience of workers,poorly equipped,high energy consumption.Renewal of equipment is slow,technological innovation, technological progress is not much intensity.Although in recent years introduced many advanced mold processing equipment,but are too scattered,or not complete, only about25%utilization,equipment,some of the advanced functions are not given full play.Lack of technology of high-quality mold design,manufacturing technology and skilled workers,especially the lack of knowledge and breadth,knowledge structure, high levels of compound talents.China's mold industry and technical personnel, only8%of employees12%,and the technical personnel and skilled workers and lower the overall skill level.Before1980,practitioners of technical personnel and skilled workers,the aging of knowledge,knowledge structure can not meet the current needs;and staff employed after80years,expertise,experience lack of hands-on ability,not ease,do not want to learn technology.In recent years,the brain drain caused by personnel not only decrease the quantity and quality levels,and personnel structure of the emergence of new faults,lean,make mold design,manufacturing difficult to raise the technical level.2.3Die&Mould Industry Structure in Industrial OrganizationChina's mold industry is relatively backward and still could not be called an independent industry.Mold manufacturer in China currently can be divided into four categories:professional mold factory,professional production outside for mold; products factory mold factory or workshop,in order to supply the product works as the main tasks needed to die;die-funded enterprises branch,the organizational model and professional mold factory is similar to small but the main;township mold business,and professional mold factory is similar.Of which the largest number of first-class,mold production accounts for about70%of total output.China's mold industry,decentralized management system.There are19major industry sectors manufacture and use of mold,there is no unified management of the department. Only by China Die&Mould Industry Association,overall planning,focus on research, cross-sectoral,inter-departmental management difficulties are many.Mold is suitable for small and medium enterprises organize production,and our technical transformation investment tilted to large and medium enterprises,small and medium enterprise investment mold can not be guaranteed.Including product factory mold shop,factory,including,after the transformation can not quickly recover its investment,or debt-laden,affecting development.Although most products factory mold shop,factory technical force is strong,good equipment conditions,the production of mold levels higher,but equipment utilization rate.Price has long been China's mold inconsistent with their value,resulting in mold industry"own little economic benefit,social benefit big"phenomenon."Dry as dry mold mold standard parts,standard parts dry as dry mold with pieces of production. Dry with parts manufactured products than with the mold"of the class of anomalies exist.3Die trend3.1mold CAD/CAE/CAM being integrated, three-dimensional,intelligent and network direction(1)mold software features integratedDie software features of integrated software modules required relatively complete, while the function module using the same data model,in order to achieve Syndicated news management and sharing of information to support the mold design, manufacture,assembly,inspection,testing and production management of the entire process to achieve optimal benefits.Series such as the UK Delcam's software will include a surface/solid geometric modeling,engineering drawing complex geometry, advanced rendering industrial design,plastic mold design expert system,complex physical CAM,artistic design and sculpture automatic programming system,reverse engineering and complex systems physical line measurement systems.A higher degree of integration of the software includes:Pro/ENGINEER,UG and CATIA, etc..Shanghai Jiaotong University,China with finite element analysis of metal plastic forming systems and Die CAD/CAM systems;Beijing Beihang Haier Software Ltd.CAXA Series software;Jilin Gold Grid Engineering Research Center of the stamping die mold CAD/CAE/CAM systems.(2)mold design,analysis and manufacture of three-dimensionalTwo-dimensional mold of traditional structural design can no longer meet modern technical requirements of production and integration.Mold design,analysis, manufacturing three-dimensional technology,paperless software required to mold a new generation of three-dimensional,intuitive sense to design the mold,using three-dimensional digital model can be easily used in the product structure of CAE analysis,tooling manufacturability evaluation and CNC machining,forming process simulation and information management and sharing.Such as Pro/ENGINEER, UG and CATIA software such as with parametric,feature-based,all relevant characteristics,so that mold concurrent engineering possible.In addition,Cimatran company Moldexpert,Delcam's Ps-mold and Hitachi Shipbuilding of Space-E/mold are professional injection mold3D design software,interactive3D cavity,core design, mold base design configuration and typical structure.Australian company Moldflow realistic three-dimensional flow simulation software MoldflowAdvisers been widely praised by users and applications.China Huazhong University of Science have developed similar software HSC3D4.5F and Zhengzhou University, Z-mold software.For manufacturing,knowledge-based intelligent software function is a measure of die important sign of advanced and practical one.Such as injection molding experts Cimatron's software can automatically generate parting direction based parting line and parting surface,generate products corresponding to the core and cavity,implementation of all relevant parts mold,and for automatically generated BOM Form NC drilling process,and can intelligently process parameter setting, calibration and other processing results.(3)mold software applications,networking trendWith the mold in the enterprise competition,cooperation,production and management,globalization,internationalization,and the rapid development of computer hardware and software technology,the Internet has made in the mold industry,virtual design,agile manufacturing technology both necessary and possible. The United States in its"21st Century Manufacturing Enterprise Strategy"that theauto industry by2006to achieve agile manufacturing/virtual engineering solutions to automotive development cycle shortened from40months to4months.3.2mold testing,processing equipment to the precise, efficient,and multi-direction(1)mold testing equipment more sophisticated,efficientSophisticated,complex,large-scale mold development,testing equipment have become increasingly demanding.Precision Mould precision now reached2~3μm, more domestic manufacturers have to use Italy,the United States,Japan and other countries in the high-precision coordinate measuring machine,and with digital scanning.Such as Dongfeng Motor Mould Factory not only has the capacity 3250mm×3250mm Italian coordinate measuring machine,also has a digital photography optical scanner,the first in the domestic use of digital photography, optical scanning as a means of spatial three-dimensional access to information, enabling the establishment from the measurement of physical→model output of engineering drawings→→the whole process of mold making,reverse engineering a successful technology development and applications.This equipment include: second-generation British Renishaw high-speed scanners(CYCLON SERIES2)can be realized and contact laser probe complementary probe,laser scanner accuracy of 0.05mm,scanning probe contact accuracy of0.02mm.Another German company GOM ATOS portable scanners,Japan Roland's PIX-30,PIX-4desktop scanner and the United Kingdom Taylor Hopson's TALYSCAN150multi-sensor,respectively Three-dimensional scanner with high speed,low-cost and functional composite and so on.(2)CNC EDMJapan Sodick linear motor servo drive using the company's AQ325L, AQ550LLS-WEDM have driven fast response,transmission and high positioning accuracy,the advantages of small thermal deformation.Switzerland Chanmier company NCEDM with P-E3adaptive control,PCE energy control and automaticprogramming expert systems.Others also used the powder mixed EDM machining technology,micro-finishing pulse power and fuzzy control(FC)technologies.(3)high-speed milling machine(HSM)Milling is an important means of cavity mold.The low-temperature high-speed milling with the workpiece,cutting force is small,smooth processing,processing quality,processing efficiency(for the general milling process5to10times)and can process hard materials(<60HRC)and many other advantages.Thus in the mold processing more and more attention.Ruishikelang company UCP710-type five-axis machining center,machine tool positioning accuracy up to8μm,home-made closed-loop vector control spindle with a maximum speed42000r/min.Italy RAMBAUDI's high-speed milling,the processing range of up to2500mm×5000mm ×1800mm,speed up20500r/min,cutting feed speed of20m/min.HSM generally used large,medium-sized mold,such as motor cover mold,die casting mold,large plastic surface machining,the surface precision up to0.01mm.3.3rapid economic modeling techniquesShorten the product development cycle is an effective means of market competition to win pared with the traditional mold process,fast economic modeling technology is a short molding cycle,the characteristics of low cost,precision,and life can meet the production needs,overall economic efficiency is more significant in the mold manufacturing technology,specifically the following main technology.(1)rapid prototyping and manufacturing(RPM).It consists of three-dimensional laser lithography(SLA);laminated profile manufacturing(LOM);laser powder sintering prototyping(SLS);Fused Deposition Molding(FDM)and three-dimensional printing forming technology(3D-P)and so on.(2)the surface forming tooling.It refers to the use of spray,chemical corrosion, electroforming and new method for the formation of the cavity surface and a fine pattern technology.(3)Casting forming tooling.There are bismuth tin alloy tooling,zinc alloy tooling, resin composite forming technology and silicon rubber mold molding technology.(4)cold extrusion mold technology and ultra-molded shapes.(5)multi-point forming technology.(6)KEVRON steel blanking blanking tooling.(7)mold blank rapid manufacturing technology.Mainly dry sand Mold Casting, Vacuum Mold Casting,Resin Sand Mold Casting Lost Wax Casting,and other technologies.(8)Other aspects of technology.Such as the use of nitrogen gas spring pressure side,discharge,quick die technology,stamping unit technology,and cutting edge technology and solid surfacing edge inserts die casting technology.3.4mold industry new techniques,new ideas and new models have been gradually recognizedIn the forming process,the main function of composite stamping die,superplastic forming,plastic precision molding technology,plastic mold gas-assisted injection technology and hot runner technology,high-pressure injection molding technology. On the other hand,with the continuous development of advanced manufacturing technology and raise the level of mold industry as a whole,in the mold industry,there are some new design,production,management ideas and models.Concrete are:to adapt to the characteristics of mold-piece production flexible manufacturing technologies;to create the best management and effective teamwork,lean production; to enhance rapid response capabilities of Concurrent Engineering,Virtual Manufacturing and global agile manufacturing,manufacturing of new production networks philosophy;extensive use of standard parts common parts of the division of work mode of production;meet the environmental requirements of sustainable development and green design and manufacturing.SummaryThe21st century,in the new situation of economic globalization,with capital, technology and labor market re-integration of equipment manufacturing in China after joining the WTO will become the world's equipment manufacturing base.In themodern manufacturing industry,no matter which industry,engineering equipment,are increasingly used to provide the products from the mold industry.In order to meet the user's high-precision mold manufacturing,short delivery time,the urgent demand low-cost,mold industry is extensive application of modern advanced manufacturing technology to speed up the mold industry,technological progress,to meet the basic sectors of the mold process equipment urgent needs.180#柴油机通风口座子拉深模设计材料为Q235材料厚度δ=1.5mm生产批量:大批量零件简图:如图1所示.图1柴油机通风口座子设计步骤按如下程序进行(一)分析零件的工艺性这是一个不带底的阶梯形零件,其尺寸精度、各处的圆角半径均符合拉深工艺要求。

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摇臂冲压工艺及模具设计开题报告(最新整理)

摇臂冲压工艺及模具设计开题报告(最新整理)

2、模具设计与制造能力状况 在国家产业政策的正确引导下,经过几十年努力,现在我国冲压模具的设
计与制造能力已达到较高水平,包括信息工程和虚拟技术等许多现代设计制造 技术已在很多模具企业得到应用。 虽然如此,我国的冲压模具设计制造能力与市场需要和国际先进水平相比仍有 较大差距。这一些主要表现在高档轿车和大中型汽车覆盖件模具及高精度冲模 方面,无论在设计还是加工工艺和能力方面,都有较大差距。轿车覆盖件模具, 具有设计和制造难度大,质量和精度要求高的特点,可代表覆盖件模具的水平。 虽然在设计制造方法和手段方面基本达到了国际水平,模具结构周期等方面, 与国外相比还存在一定的差距。 2. 选题的依据和意义: 模具是工业生产的基础工艺装备,被称为“工业之母”。75%的粗加工工业产品 零件、50%的精加工零件由模具成型,绝大部分塑料制品也由模具成型。作为 国民经济的基础工业,模具涉及机械、汽车、轻工、电子、化工、冶金、建材 等各个行业,应用范围十分广泛。中国经济的高速发展对模具工业提出了越来 越高的要求,也为其发展提供了巨大的动力。近 10 年来,中国模具工业一直以 每年 15%左右的增长速度快速发展。 据统计资料,模具可带动其相关产业的比 例大约是 l:100,即模具发展 1 亿元,可带动相关产业 100 亿元。通过模具加 工产品,可以大大提高生产效率,节约原材料,降低能耗和成本,保持产品高 一致性等。如今,模具因其生产效率高、产品质量好、材料消耗低、生产成本 低而在各行各业得到了应用.并且直接为高新技术产业服务;特别是在制造业 中,它起着其它行业无可取替代的支撑作用,对地区经济的发展发挥着辐射性 的影响。我国目前模具总产值已跃居世界第三,仅次于日本和美国,其中,汽 车、摩托车、家电行业是模具最大的市场,占整个模具市场份额的 80%以上。 当今世界正进行着新一轮的产业调整.一些模具制造逐渐向发展中国家转移, 中国正成为世界模具大国。近年来,外资对我国模具行业投入量增大,工业发 达国家将模具向我国转移的趋势进一步明朗化,这代表着我国模具行业迎来新 一轮的发展机遇,也代表着面临国外先进技术和高品质制品的挑战。

注塑模设计 开题报告

注塑模设计 开题报告

注塑模设计开题报告注塑模设计开题报告一、选题背景和意义注塑模是注塑成型工艺中的核心设备,其设计的好坏直接影响到产品的质量和生产效率。

随着现代工业的发展,注塑模设计也面临着越来越多的挑战和需求,因此,对注塑模设计进行深入研究和优化是十分必要和重要的。

二、研究目标和内容本次研究的目标是通过对注塑模设计的分析和优化,提高注塑成型工艺的效率和产品的质量。

具体研究内容包括注塑模的结构设计、材料选择、热流分析、模具流道设计等方面。

三、研究方法和步骤1. 文献调研:通过查阅相关文献,了解注塑模设计的基本原理和现有研究成果,为后续研究提供理论基础。

2. 注塑模结构设计:根据注塑成型工艺的要求和产品的特点,设计合理的注塑模结构,包括模腔、模芯、顶出机构等。

3. 材料选择:根据注塑模的使用环境和工艺要求,选择合适的材料,以保证模具的强度、硬度和耐磨性。

4. 热流分析:通过热流分析软件对注塑模进行模拟,分析注塑过程中的温度分布和热应力,以优化模具的冷却系统和加热系统。

5. 模具流道设计:根据产品的形状和尺寸,设计合理的模具流道,以保证塑料材料在注塑过程中的均匀流动和充填。

四、预期成果和创新点通过本次研究,预期可以得到以下成果:1. 注塑模设计的优化方案,提高注塑成型工艺的效率和产品的质量。

2. 注塑模的结构设计和材料选择的理论指导,为注塑模设计提供科学依据。

3. 注塑模的热流分析结果和模具流道设计的优化方案,提高注塑模的冷却效果和塑料材料的充填性。

本次研究的创新点主要有:1. 结合现代工业的需求,对注塑模设计进行深入研究,提出切实可行的优化方案。

2. 运用热流分析软件进行模拟,对注塑模的热流分布进行分析和优化。

3. 结合产品的形状和尺寸,设计合理的模具流道,提高注塑成型工艺的稳定性和一致性。

五、研究的局限性和挑战在进行注塑模设计的研究过程中,可能会面临以下局限性和挑战:1. 数据采集的困难:注塑模设计需要大量的实验数据和现场观察,而这些数据的采集可能会受到一些限制和困难。

冲压模具设计开题报告

冲压模具设计开题报告
现在模具工业已有“不衰亡工业”之称,欧美工业发达国家将模具比喻为“点铁成金”的“磁力工业”、“金属加工帝皇”、“进入富裕社会的原动力”。 在我国把模具称为“工业之母”、和“无以伦比的效益放大器”。 ?模具是以特定的结构形式通过一定的方式使材料成形为制品的工具产品,是工业生产基础工艺装备,以其生产制件所表现的高精度、高复杂、高一致性、高生产效率和低耗能耗材,越来越引起各级政府和国民经济各产业的重视,特别是轻工、电子、机械、通讯、交通、汽车、军工等部门,如果没有模具就很难生产和发展产品;如果不能及时供应模具,就会影响生产的发展;如果模具精度低则产品质量差;在目前经济状况的形式下,更多的人员研究模具设计制造不仅可以使中国模具企业加快产业集群化,发挥规模效应,还应注重模具产业链的前端研发、人才建设和Байду номын сангаас业链后端的检测以及信息服务,尽快缩短技术、管理、工装水平与国际水准的差距。冲裁件的结构为一盖,为一多工序冲裁件,形状简单,尺寸较大。且工序分为三道工序第一道为拉深第二道进行冲孔第三道为落料,但是在拉深时有些难点,我们要知道它的拉深系数并且还要防止褶皱,所以我们要采用压板。
三、研究步骤、方法及措施:
(1)研究和确定模具设计方案。
(2)收集、整理相关设计资料,完成开题报告。
(3)选择与确定模具的主要零部件的结构和尺寸。
(4)选择压力机的标准型号或校验已选压力机。
(5)工艺计算及有关工艺参数的校核。
(6)模具的具体设计并且运用AutoCAD软件绘图,主要包括模具总装图以及各个非标件的零件图。
②在确定模具设计的总体结构形式,进一步根据所生产制品进行经济高效、省力公道、使用安全且能保证加工质量的设计完善具体零部件的精度、尺寸及形状的最终方案。
③熟练掌握查阅手册、图标、资料等参考文献。充分利用与本次题目有关的冲压设计的资料,做到科学的,熟练的运用。

(完整版)汽车零部件的工艺分析及模具设计开题报告

(完整版)汽车零部件的工艺分析及模具设计开题报告

**************
2012 届本科毕业设计(论文)开题报告
论文题目:汽车零部件冷冲压工艺分析及模具设计
学生姓名:学号:
系(部、院):******* 学院
专业:班级:
指导教师:
2012年* 月日
开题报告填写要求
1. 开题报告作为毕业设计(论文)答辩委员会对学生答辩资格审查的依据材料之一。

在指导教师指导下,学生在毕业设计(论文)工作开始前完成,指导教师签署意见、教研室审查后生效;
2. 学生应按照统一要求(从教务处网站下载开题报告标准格式电子文档)填写开题报告,其中:字体小4号宋体,行距20磅,日期的填写一律用阿拉伯数字书写,如“2006年1月17日”或“2006-01-17”;
3. 根据专业的具体情况,学生应查阅一定数量的参考文献(不包括辞典、手册);
4. 完成后及时交给指导教师签署意见。

2012 届本科毕业设计(论文)开题报告。

(完整版)注塑模设计毕业设计开题报告

(完整版)注塑模设计毕业设计开题报告
三、我国塑料模具的发展趋势
现代经济的飞速发展,推动了我国模具工业的前进。CAD/CAM/CAE技术的日臻完善和在模具制造上的使用,使其在现代模具的制造中发挥越来越重要的作用, CAD/CAM/CAE技术已成为现代模具的制造的必然趋势。CAD/CAM/CAE计算机辅助设计、模拟和制造一体化, CAD/CAM/CAE一体化集成技术是现代模具制造中最先进、最合理的生产方式。使用计算机辅助设计、辅助工程和制造系统,按设计好的模具零件分别编制该零件的数控加工程序是从设计到制造的一个必然过程
(3)考虑材料成形特性和力学性能。
(4)生产批量为大批量生产。
(5)模具设计要求:
①合理地选择模具结构;
②正确地确定模具成形零件的尺寸;
③设计的模具应当制造方便,成本尽可能低;
④充分考虑塑件设计特色,尽量减少后加工;
⑤设计的模具应当效率高、安全可靠,自动化程度高。
⑥塑件设计需提供2D图纸(AUTOCAD绘制)3D结构图和装配图(Pro/E)。
⑦模具设计需提供2D图纸(电子图和打印图)。
3)设计说明书的编写:(按学校毕业设计要求编写)
4)模具的大体方案:
胶框四周都有凸出的卡钩,若分型面设置在塑件的下表面或上表面,必须设置两个或者四个侧向分型机构,塑件对表面质量也有要求,所以选择将分型面设置在下表面。塑件一侧侧有侧凸结构,必须设置侧向分型机构,在设计模具是必须注意。浇口位置不能设置在塑件表面,以免影响表面质量。
[19] Storojev,V.M.,Teoria obrabotki metallov davieniem,Moskva,1977[20] Iliescu,C.and I.Neagoe.“Upsetting of cut bars in closed tools”,Wire World International,1987

基于solidworks的汽车发动机机盖模具设计毕业设计-开题报告

基于solidworks的汽车发动机机盖模具设计毕业设计-开题报告

基于solid works的汽车发动机机盖模具设计1、课题的来源课题来源于生产实际,探讨冲压加工中较常见零件的工艺方法和结构设计。

课题涉及知识面较广,且设计要求高,对学生的设计能力,特别是思考能力是一个很好的锻炼。

课题研究内容包括机械工程科学的力学,材料学,机械原理,机械设计,公差与互换性,机械制造工艺等知识,特别锻炼学生规范性设计的能力。

对学生是一个挑战。

课题为典型的机械设计类课题,涉及机械知识全面,与工程机械专业方向结合紧密。

2、研究的目的和意义汽车工业是国民经济的支柱产业,汽车的更新换代主要取决于车身的开发周期。

而车身开发的关键在于汽车覆盖件模具的设计与制造。

据统计,一辆客车或轿车上约有80%的零部件需要利用模具加工制造。

一般汽车车身由数百个冲压件组成,冲压模高达1000套以上,模具的开发成本每年大约在2亿美元左右。

同时,在车型设计,模具设计与制造,模具调试,产品投产的整个周期中,模具设计和制造约占2/3的时间,成为制约新车型快速上市的关键因素。

覆盖件的制造是汽车车身制造的关键环节。

形状较复杂的覆盖件通常是要经过多道工序的冲压才能完成,然而覆盖件的质量的好坏很大程度上受拉延模质量的控制,故而拉延模是冲出高品质外观的关键,因此,大型覆盖件拉延模的设计和制造调试是汽车制造厂家和模具制造厂家必须攻克的一道难题。

近年来随着研究技术的发展和进一步完善,根据汽车覆盖件模具设计的经验和规则,在UG平台上将模板技术和参数化方法应用于汽车覆盖件模具的设中,能够大大地缩短传统覆盖件模具设计的周期,达到快速响应制造。

基于UG的模具设计与制造技术便由此而来。

随着汽车工业的发展,对汽车覆盖件的要求越来越高,冲压技术和模具是整个过程中的关键,冲压模具的设计分析可以有效的提高产品的质量,减少产品的浪费,缩短加工周期。

该课题是运用Solid Works建模软件结合实际应用进行理论分析,对汽车中的发动机机盖覆盖件冲压模的进行设计的一个过程。

注塑模具 开题报告

注塑模具开题报告注塑模具开题报告一、研究背景注塑模具是一种用于制造塑料制品的重要工具。

随着塑料制品在各个领域的广泛应用,注塑模具的需求量也在不断增加。

然而,目前市场上的注塑模具存在一些问题,如生产效率低、成本高、精度不够等。

因此,本研究旨在通过改进注塑模具的设计和制造工艺,提高其生产效率和质量,以满足市场需求。

二、研究目标本研究的主要目标是改进注塑模具的设计和制造工艺,以提高其生产效率和质量。

具体包括以下几个方面:1. 分析目前市场上注塑模具存在的问题和不足之处;2. 设计新型注塑模具,提高其结构的稳定性和刚性;3. 优化注塑模具的制造工艺,提高生产效率;4. 提高注塑模具的加工精度,减少产品的缺陷率。

三、研究内容本研究将分为以下几个方面进行:1. 市场调研:对目前市场上的注塑模具进行调研,分析其存在的问题和不足之处,了解市场需求。

2. 模具设计:根据市场需求和调研结果,设计新型注塑模具。

在设计过程中,将注重提高模具结构的稳定性和刚性,并考虑模具的易制造性和可维修性。

3. 制造工艺优化:通过优化注塑模具的制造工艺,提高生产效率。

主要包括材料选择、加工工艺优化等方面的研究。

4. 加工精度提升:通过改进注塑模具的加工工艺和控制系统,提高注塑模具的加工精度,减少产品的缺陷率。

5. 实验验证:通过实验验证新型注塑模具的设计和制造工艺的可行性和有效性。

对比实验结果,评估改进后的注塑模具与传统模具的差异。

四、研究方法本研究将采用以下研究方法:1. 文献调研:通过查阅相关文献,了解注塑模具的发展历程和研究现状,为研究提供理论基础。

2. 市场调研:通过调查问卷、访谈等方式,了解市场上注塑模具的需求和存在的问题。

3. 模具设计:采用计算机辅助设计软件,进行注塑模具的三维设计和结构分析。

4. 制造工艺优化:通过实验和仿真,优化注塑模具的制造工艺,提高生产效率。

5. 加工精度提升:通过改进注塑模具的加工工艺和控制系统,提高注塑模具的加工精度。

冲压模具设计开题报告

冲压模具设计开题报告冲压模具设计开题报告一、引言冲压模具是制造工业中不可或缺的重要工具,广泛应用于汽车、家电、航空航天等领域。

本文将探讨冲压模具设计的相关问题,包括设计原则、材料选择、工艺流程等。

二、设计原则1. 准确性:冲压模具的设计必须精确符合产品的要求,确保产品尺寸、形状的精度和一致性。

2. 可靠性:冲压模具在使用过程中需要承受巨大的压力和冲击力,设计时必须考虑到材料的强度和耐久性,确保模具的可靠性和寿命。

3. 经济性:冲压模具的制造和使用成本应尽可能降低,同时考虑到生产效率和产品质量的平衡。

三、材料选择1. 模具材料:常用的模具材料有工具钢、合金钢、硬质合金等。

根据冲压件的材料和生产要求选择合适的模具材料,以确保模具的硬度、耐磨性和抗变形能力。

2. 润滑材料:冲压过程中,模具与工件之间需要润滑剂来减少摩擦,常用的润滑材料有硅油、润滑脂等。

选择合适的润滑材料可以提高冲压效率和模具寿命。

四、工艺流程1. 设计分析:根据产品的要求和冲压工艺,进行模具的设计分析,包括模具结构、尺寸、形状等方面的考虑。

2. 绘图设计:使用CAD软件进行模具的三维设计和绘图,确保模具的准确性和可行性。

3. 制造加工:根据设计图纸进行模具的制造加工,包括数控加工、热处理、抛光等工艺。

4. 调试和试产:完成模具制造后,进行模具的调试和试产,验证模具的性能和可靠性。

5. 优化改进:根据试产结果和反馈意见,对模具进行优化改进,提高生产效率和产品质量。

五、挑战和解决方案1. 复杂形状的冲压件:对于复杂形状的冲压件,模具设计需要考虑到工艺难度和成本控制。

可以采用分段冲压、多工位冲压等方式来解决。

2. 高强度材料的冲压:高强度材料的冲压对模具的要求更高,需要选择合适的模具材料和加工工艺,以确保模具的强度和耐用性。

3. 自动化生产的需求:随着工业自动化水平的提高,冲压模具需要适应自动化生产线的要求,包括模具的快速换模、自动送料等功能。

冲压模具毕业设计-开题报告

浙江理工大学本科毕业设计(论文)开题报告灯罩拉深成形分析及模具设计1课题研究意义全国数家家具企业在灯罩的加工中还是采用传统的以塑料位原材料的工艺进行生产,存在着“三低”(材料利用率低、设备效率低及生产率低)和“二高”(劳动强度高及制品成本高)等严重缺点。

人们逐渐走上了健康、快乐、充满新意的现代化室内装潢,铝制灯罩代替塑料灯罩明显不断扩大,与塑料灯罩相比,铝制灯罩不仅是使用寿命长,还具有自身重量轻及外形色泽美观等特点。

在我国已加入世界贸易组织的形势下,各种型号铝制灯罩的产量及价格不能满足灯具行业中剧烈竞争的要求,为了提高制品质量及生产效率,改善工人的劳动条件及降低制品成本,经研究表明,铝制灯罩采用冷挤压方法是一种行之有效的、具有高质量、高精度、高产量、低消耗、低投资及低成本等优点。

该冷挤压技术的出现,对灯具行业的大批量生产是一场革命[1]。

随着科学技术的发展,对压铸件产品的安全性和造型美观的要求不断提高。

根据使用的不同,对零件的质量的评价有所不同。

具体来说,若零件在力学性能、几何形状、尺寸精度、缩孔、气孔、粗糙度等方面满足使用要求,就是合格品;零件比图纸要求质量稍差些,但还能勉强使用,该零件就是次品。

如果完全不符合使用要求,该零件就是废品[2]。

如何生产出高质量的零件,对节约材料、能源和缩短制造工时,提高经济效益都有很大的意义[3]。

通过生产试制,可以证实铝制灯罩采用合理的冷挤压工艺,与其它成形工艺相比,它具有如下优点:1)提高制件质量。

冷挤压工艺可获得铝制灯罩凸缘与杯部的连续金属流线,大大增加了强度,从而提高了制件质量[4]。

2)提高制件精度。

通过冷挤压工艺,使铝制灯罩能达到较精确的形状及较高的尺寸精度。

3)节约金属材料。

由于采用少、无切屑的冷挤压技术,能达到铝制灯罩所要求的形状及尺寸,从而大大降低金属消耗量,故显著提高材料利用率。

4)提高生产率。

与其它成形方法相比,制件只需一次反挤压成形,减少了生产工序,从而大大提高了生产率。

冲压模具设计开题报告

毕业设计(论文)开题报告题目:上弹簧座学科部:理工学科部专业:材料成型及控制工程班级:学号:姓名:指导教师:填表日期:2012 年 2 月20 日一、选题的依据及意义选题依据:冲压--是在室温下,利用安装在压力机上的模具对材料施加压力,使其产生分离或塑性变形,从而获得所需零件的一种压力加工方法。

冲压模具是冲压生产必不可少的工艺装备,是技术密集型产品。

冲压件的质量、生产效率以及生产成本等,与模具设计和制造有直接关系。

模具设计与制造技术水平的高低,是衡量一个国家产品制造水平高低的重要标志之一,在很大程度上决定着产品的质量、效益和新产品的开发能力。

我国冲压模无论在数量上,还是在质量、技术和能力等方面都已有了很大发展,但与国民经济需求和世界先进水平相比,差距仍很大,一些大型、精密、复杂、长寿命的高档模具每年仍大量进口,特别是中高档轿车的覆盖件模具,目前仍主要依靠进口。

一些低档次的简单冲模,已趋供过于求,市场竞争激烈。

我国模具行业专业化程度还比较低,模具自产自配比例过高。

国外模具自产自配比例一般为30%,我国冲压模自产自配比例为60%。

这就对专业化产生了很多不利影响。

现在,技术要求高、投入大的模具,其专业化程度较高,例如覆盖件模具、多工位级进模和精冲模等。

而一般冲模专业化程度就较低。

由于自配比例高,所以冲压模生产能力的分布基本上跟随冲压件生产能力的分布。

但是专业化程度较高的汽车覆盖件模具和多工位、多功能精密冲模的专业生产企业的分布有不少并不跟随冲压件能力分布而分布,而往往取决于主要投资者的决策。

例如四川有较大的汽车覆盖件模具的能力,江苏有较强的精密冲模的能力,而模具的用户大都不在本地。

选题意义:运用大学期间所学的专业课程知识、理论和毕业实习中学到的实践知识,正确地解决冲压模具设计中的工艺分析、工艺方案论证、工艺计算、模具结构设计和零件设计等问题。

提高结构设计的能力。

通过所给产品进行该产品模具设计,获得根据所生产制品来设计出经济高效、省力合理且能保证加工质量的模具的能力。

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