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隔离 罩级进模 设计

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7隔离罩级进模设计,隔离,罩级进模,设计

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3个问题1.模柄的作用？ 模柄的作用是把上模部分与压力机的滑块相连接，并将作用力由压力机传给模具，从而完成冲压过程。 由于本模具上模座比较厚而且又没有开设推板孔，所以采用压入式模柄，采用过度配合（H7/M6）并加销钉以防转动。2.工艺切口的作用？ 为了有利于材料的塑性变形，工艺切口在连续拉深工序中比较常用，有利于带料在拉深过程中材料流动性较好，不产生起皱和拉裂现象。3.侧刃的作用？ 侧刃是在条料两侧切去少量材料而达到挡料和定位的目的。具体工作过程为：侧刃定距在级进模中是常用的定距形式，适用于0.1-1.5 mm厚的板料。太薄的板料用挡块定位时因板料易产生变形而影响定位精度；太厚的料则不适用于侧刃冲切。当冲裁两侧切去缺口后，被侧刃切过的条料能通过导料板间开距较窄处，而未切过的条料则不能进入，在缺口端面被挡块挡住，从而完成挡料和定位的作用。 由于侧刃前后的导料板宽度不等，所以只有侧刃切去长度等于步距的料边后，条料才可能向前送进一个步距。 使用侧刃的级进模定位准确，生产率高，操作方便。4.镶套式凹模的优点？ 为了便于加工、刃磨和更换，以及制造，维修更换方便，凹模的拉深部分单独采用镶块结构。1 毕业设计工作总结 工作任务完成情况（包括任务书中规定的工作内容、研究目标等，如未能完成须说明原因）：本次毕业设计主要研究模具制造业中的隔离罩级进模设计。本次毕业设计基本上圆满的完成了工作任务：（1）设计之初，到图书馆搜集和积累大量资料，编写开题报告。在老师的指导下和其他同学的共同研讨的基础上完成了对资料的整理，对以后的工作奠定了良好的基础。2）在方案设定的初期阶段对各个方案的优、缺点进行了分析和比较，在参照国内、外与本课题相关技术的前提下确定了最优方案。3）方案确定以后，在老师的耐心指导和自己的共同努力下，对该方案的整体系统进行了大量的设计，并且设计过程中，对不合理的地方进行了修改。比较顺利的完成了本阶段的工作。4）绘制了本次设计的大量图纸，包括装配图一张和各个零件图。5）对设计内容作了仔细整理，完成了毕业设计说明书的编写。6）翻译完成了5000字左右的相关专业的英文资料，锻炼了查阅翻译外文资料的能力。主要创新点：本课题针对冷冲模制造工艺、结构设计方面问题，对多工位级进模进行设计。落料、冲孔、拉伸、的工艺方案采用级进模冲压不仅提高了生产效率，模具结构本身也简洁实用。考虑到带料的连续拉伸和为使在拉深过程中材料流动性较好，不产生起皱和拉裂现象，带料的排样采用两边切口和步距间切槽的形式。隔离罩级进模设计中模具采用标准的对角滑动导向模架，标准的三版板式结构，但凹模的拉深部分考虑到制造，维修更换方便，单独采用镶块结构。卸料板为弹压式结构。送料的导板靠侧面导板，在其两头装有安全板，保证送料安全。冲压后保持带料的两侧形成一个有缝的平弧形，靠顶板顶平。拉深、整形工位时圆角和各尺寸做到完全符合设计要求。整形凸模的工作端可以做成台阶式，使整形后形状非常美观。每个拉深模里均有顶板，弹压力大小靠螺塞调整获得。落料凹模上装有导正销，在导入制件的方孔后再落料，保证制件内孔和外形同轴，落下的件通过下模座上的斜孔落入到存料器中。工作状况（包括工作态度、刻苦精神、协作精神、个人精力投入、出勤等情况）： 在本次持续了十周的毕业设计过程中，做为我本人来说：在对待本次毕业设计的态度上是非常端正的，能够深刻的认识到本次毕业设计的重要性，明白此次毕业设计既是对大学期间所学课程的总结，也是在以后参加工作之前的一次练兵，因此在实际行动上也能够把握好时间，按时完成相关阶段的工作任务，积极思考设计方案，并且根据设计方案到网上查阅了各种相关资料，通过对资料的学习进一步完善了设计方案。 在本次毕业设计中，积极的与指导老师联系，把自己的观点详细的与导师进行交流，对导师提出的疑问和不合理的地方进行理性的分析。再积极的思考和查阅其他的设计资料，对不合理的地方进行修改。并且做详细的纪录。在遇到自己解决不了的问题，积极的向其他同学学习，同时也积极的帮助其他同学，充分的达到了相互学习、共同进步的目的，加强了自己团队协作的能力。正是在于老师、魏老师、李老师的耐心指导下和本组同学的热心帮助下才使得这次毕业设计能够圆满的完成，在此，我感谢三位老师以及模具组的其他几位同学对我的照顾和帮助。收获、体会及建议：持续了11周的毕业设计已经接近尾声了，在毕业设计即将结束之际，回顾一下这十周的毕业设计过程，收获颇多。通过本次毕业设计，使我在机械、模具、零件加工、工艺分析的综合运用上受到了综合训练，培养了自己独立分析问题、解决问题的能力，是对大学期间学习的一个很好的总结，也是以后工作的一个美好的开始。在本次毕业设计中，我也深深地体会到自己在学习过程中的不足之处，自己在专业知识方面的欠缺，在以后的学习工作过程中，要不断开阔自己的知识面，努力提高自己的专业水平，使自己在专业上有所发展。在本次毕业设计中，于老师对我们的耐心指导，对工作的热情，也让我深深地感动，对我以后的工作和学习都将起到积极的促进作用，在此，我再次感谢于老师的耐心指导。毕业设计中我也深深地体会到协作精神的重要性，我们组在于老师的指导下，在我们七位同学的共同努力下，这次毕业设计画上了一个圆满的句号。学生签字：赵亮 2008年 5月25日毕业论文答辩评审表课题名称 隔离罩级进模设计学生姓名赵 亮答辩小组评分评语：答辩小组负责人签字： 年 月 日答辩小组成员签 名毕业论文成绩评定指导教师评分评阅人评分答辩评分综合评分（按结构分4：2：4）答辩委员会负责人签字： 20 年 月 日毕 业 设 计 等 级（按优、良、中、及格、不及格）毕业设计评审表（评阅人用） 课题名称隔离罩级进模设计学生姓名赵 亮序号评审项目指 标满分得分1课题完成情况课题内容、难易程度和工作量符合教学基本要求。202调查与综合有收集、综合和正确利用各种信息的能力； 开题报告质量高。153译 文外文资料翻译准确、通顺、流畅，译文数量符合要求。54设计或实验方案设计方案论证充分、合理；数据采用、计算、处理正确；对前人工作有所改进或突破。205图纸及设计说明书图纸完备或完成任务书所规定的工作、准确、规范，符合国家标准。结构设计合理，工艺可行。说明书结构严谨，层次分明，文字通顺、技术用语准确，书写格式符合要求。306基础理论及创 新较好地掌握本专业的基础理论和专业知识；有一定的创新内容或成果有一定的应用价值。10 合 计评语： 评阅人签字： 年 月 日山东理工大学毕业设计（论文）手册学院 工程技术学院 系 机电工程系 专业 机械设计制造及其自动化 班级 机升0602学生姓名 赵 亮 学号 0622110251指导教师 于文强 职称 讲师 职称 山东理工大学教务处编印二 八 年 三月毕业设计（论文）自二八年三月至二八年六月 共 周毕业设计评审表（指导教师用）课题名称隔离罩级进模设计学生姓名赵 亮序号评审项目指 标满分得分1课题完成情 况按期完成任务书规定的任务；工作努力，严谨务实；遵守纪律；善于与他人合作；动手能力强。202调查与综合能独立查阅文献资料；完成社会调查或现场考察任务；有收集、综合和正确利用各种信息及获取新知识的能力；开题报告质量高。103译 文按要求完成外文资料翻译，翻译准确、通顺，译文数量符合要求。104设计或实验方案设计或实验方案论证充分；计算、分析、论据正确；对前人工作有所改进或突破。205图纸、设计说明书质量图纸完备或完成任务书所规定的工作；图样正确、规范，符合国家标准；设计合理，工艺可行。计算准确、论据充分、结构严谨；语言准确、流畅，符合撰写要求。306基础理论的掌握及创新较好地掌握本专业的基础理论和专业知识；工作中有创新意识或成果有一定的应用价值。10 合 计评语：指导教师签字： 20 年 月 日外文资料Research on Flexible Die Designing System Using ProE Abstract：Die designing is a demanding and hard workTo design a separate die for each product is time consuming and expensive taskThis paper presents an idea of sets of standard reference diesit gives a concept of flexible die designing using a reference standard die designed in a popular commercial CADCAM softwareProEngineerRather than designing a separate die for each part，just update the die design by selecting the die dimensions as requiredThe use of this concept will prove to reduce time and cost of product in manufacturing industry Key words：die；flexible die designing system ；standardization；ProZE；secondary developmentAt present, the industrial developed countries and regions in the mold industry has been gradually standardize and serialization. In China, although the majority die within the enterprises have business standards, but generally not high degree of standardization, standardization of stamping die in the die-limited parts of the parts. To achieve real savings stamping die design time and shorten the processing cycle, cost savings, reduce design and manufacturing staff workload purposes, it needs to develop a flexible stamping die design system. At the same time, stamping die serialization of the scope of standardization and can not be confined to die-part of the fixed panels, boards, the top plate unloading device commonly used components such as stamping or even die structure, we should achieve serialization and standardization.As CAD / CAM technology in the design and manufacture die in the course of extensive application, it should first be standardized stamping die from the CAD system began. Some large-scale commercialization of the CAD / CAM software, such as Pro / E, UG, and so on. Have developed a specialized injection mold design package. And stamping die design for the special software, users need to be developed.l The application tools Pro / E in stamping die design flexibility in the system development Pro / Engineer by the United States has developed a set of PTC CAD / cAM / CAE software. Pro / E using a single database And feature-based, the design parameters of the model, provides users with 1 The development is very convenient for stamping die flexible system of tools juice1.1 Family Table Fanaily Fable known as the Family Table, the structure used to create the same or similar parts of the size and characteristics of the standardized database tables, is devoted to the establishment of a standard parts library tool. The use of the former first family table to create a generic representation of the components (the generic), according to the need to target and then added to the family table a series of management.Family sheet management can be the object of a size (dimension), features (feature), parameters (parameter) and assembly parts (component), and so on.A family table can have multiple levels, that is a generic parts can contain multiple sub-components (instance, also known as examples), and each Instance can contain their own Sub Instance. Discharge screw (stripper-bolt) the family table structure as shown in Figure 1.Figure 1 Family Table hierarchy1.2 RelationsRelations (relations) between mathematics and procedures, including grammar, and its main role is to be part or assembly of the relevance of the data by size symbols, and other parameters of grammar (syntax) to establish mathematical formula to meet the design requirements. Pro / E system of relations can be found in Sketch, Feature, Part and in the Assembly. Simple sentence, judgement and sentence is to establish relations of common format. Simple sentence that a simple mathematical relationship between the size of direct response associated situation. The use of simple format, such as d6 = L. BP 1 2 * d3. Judgement on the sentence for certain occasions, by specifying conditions to express design intent, grammar structure: IF ENDIF or IF ELSE ENDIF in the ELSE ENDIF between conditional statements can be multi-nested. Relations in the standardization and flexible stamping die design system in the building process plays a very important role, it has decided to parts of the geometric shape and characteristics of relations between the digital Xiao, parts relations between the assembly and parts assembly in the presence of middle - A number of features.1.3 ProProgramPro / Program (program) is the Pro / E of a procedural tool, similar to its grammar VBA and Office software in the Macro (Acer). When users use of Pro / engineer to design .The product of various kinds of information to document the format will be recorded. Through the Pro / Progran document editing, can be achieved on the characteristics of the hide, delete and re-order the assembly of components to add and replacement operation. These features stamping dies for the establishment of standard parts library, standards and flexible design structure of the system is very useful.Program files in the structure can be broadly classified into the title, set of parameters relationship, to add features (parts) and updating the quality attributes, such as five parts. In INPUT END INPUT Xiao located between the parameters of the RE1 ATIONS ENDREALATIONS relations between the various add in the ADD END ADD and added features (part module) or parts (assembly module). Pro / Program provides three types of parameters: NUMBER (numerical) STRING (string) and YES-NO (it).2. Standards moldbase of the development2.1 Standards moldbase Classification and organizations Die-stamping die is an important part. The typical model-there are three types: rear-guided-mode (back pillar sets), the middle-guided-mode (center pillar sets) and the guided-mode-angle (diagonal pillarsets). Each type of die-also includes a variety of specifications. According to Die boundary demarcation size, rear-guided, in a L B-22 specifications, D0 specifications 6 (L = B), middle-guided, in the nine-D0 specifications, the guided-mode-Kok L B specifications 7 2-3.In order to facilitate the management and data calls, the standard mode of the directory of the best-established in the Pro / E installation directory. As three categories-the larger structural differences, it may die-the root of the establishment of three other subdirectories, each subdirectory contains all the component parts-mode, and each type of parts can be adopted Pro / E Software for the family table, and tools such as the establishment of standard procedures for the database.2.2 Standards moldbase library buildingDie-stamping die from the main mode on the Block (upper.shoe), nder-Block (1 ower.shoe), I. column (guide.pillar) and I. Case (guidebushing), and other components. In order to make structural integrity of mold, can also die stalk (shank) assembly to die-in. Here are rear-die I.Establishment of the standard method. First of all the various components to create three-dimensional model, and then the standard manual data in the table a series of symbolic dimension added to the group on January 1 Editor (can also use Excel for editing). Add in the size of symbols, Size will be the best symbol to revise the manual and the size of the same symbol. Because people can not distinguish between Table Capitalization is, when both the same size letters, proposed to use capital letters to distinguish between pairs of characters, such as that for the d D, and D that will become a DD.Standard on two-Block: When the L B 200 mm 160 mn-i have installed Boss, and when L B is less than or equal to the scope of non-installation of Boss, shown in Figure 2. Determine whether Boss in two ways: one way is to use Family Table, will generate the Boss Extrude Offset two characteristics and the way to Feature added to the family table, and in these two characteristics of the list Enter in the Y or N, to determine the specifications of a certain mode on the Block, whether these two features; Another method is to find these two features in the Pro / Program in the location and characteristics of the process to add Extrude His statement before the judge IF L 200 1 B 160, adding the Offset characteristics of the procedures used END IF the end of judgement.Figure2. die on the ground in two types2.3 The establishment of Standards moldbase for In Pro / Assembly in the same module can be generated by the use of family die-standard database. Family structure in the assembly, when selected COrnponent, select the mode of all the parts-and enter a different group in the table-model specifications required by the standards of sub-components of the name, as shown in Figure 3. Figure 3 rear-guided, in the standard mode of Family TableCommon mode handles four types: pressure-in-stalk, the flange-stalk, Screw-mode and floating stems die stalk. If the four types of module assembly to handle all the common-mode model (Figure 3 in the assembly only two kinds), in the group table by the need to enter the module handles parts of the name, set the parameters of INPUT, with Regenerate Called when the parameters of renewable order to choose the mode of different types of handles. Of course, people can also die of the table do not have to handle characters with N to curb, as shown in Figure 3-mode system is used in this method.3 The development of standard stamping die 3.1 The typical combination of stamping dieStamping die in the larger structural differences and establish flexible stamping die design systems using the best combination of the typical mold. Use of combinations to determine the structure of the typical mold of the structure, and thus determine the composition of the various components die sizes and assembly relations. Commonly used combination of stamping die typical structure: a fixed combination of unloading, Tanya unloading combinations, composite model portfolio, such as plate-portfolio. Mold can not be separated from the structure of ISO standardization of parts, in the Pro / Engineer Dies in the standardization of parts can be used in the design of the bottom-up approach can also be used top-down design.3.2 die in the process of assembling data transferBecause of complicated, so stamping die by the standardization of the factors to consider-Modulus than standardized by many more factors to consider, one of the most important factor is the size of the correlation between the components. In the mold of a standard combination, assembly and components, parts and components between the need for data transmission, and in the Pro / Assembly can be very easy to achieve this objective.3.2.1 by the assembly of components to the data transferPro / Program can use the assembly EXECUTE statement will be down the parameters in a sub-assembly or parts delivery, the use of syntax is as follows: EXECUTE PART / ASSEMBLY file name components or sub-assembly of the parameters in the assembly of = END EXECUTE EXECUTE statement parameters can not leapfrog data transmission, not by the assembly to sub-assembly of components in the direct transmission of data.3.2.2 data transfer between the componentsWhen added to the assembly of components are in a Id, it can complete the assembly of components between the data transfer. Id assembly of components, can be used in the menu RELATIONs Session Id command to query. Figure 4 is the combination of Tanya discharge standards in the spring of unloading assembly diagram. As assembly to die in the spring have a pre-compression and thus the length of its assembly (Hs) are no longer equal to the length of freedom (H.). In determining H, you can use the following mathematical relationship:Hs:38= L:32一tbp:0 In this way can always guarantee equal to the length of spring assembly from the surface to Dianban discharge board under the surface height, thus eliminating the relevant parts were replaced after the size of Laws. In the design of this mold is very practical, because the mold assembly in a similar situation there are many. Again, in determining the discharge screw on the seat-hole diameter (dI34), they can use the following mathematical relationship：d134:8=D:32+2This Id, established by the mathematical relationship between the need to use Regenerate order to take effect, so different parts on the size of the location of as little as possible in this way, so as not to die in the initial call model will appear at the wrong result will be displayed. But if the parts in between and parameters to transfer data, the location of the various components of size parameters to create a mathematical relationship, the trouble can be avoided.3.2.3 standard replacement partsFamily Table used to establish the standard parts can lookup. inst Replacement statement. Lookup inst allows users to find the standard parts that match the sub-components, if not find the results, then return to a generic 4 J.Lookupinst ： lookup inst(genericname，match-mode，paramnamel，matchvaluel，param-name2， matchvalue2) One match. preferred mode of three, representing different meanings: one is to find parameters of less than or equal to find the value of components; parameter values 0 to find an exact match to find value of the sub-components; to find parameters of greater than or equal to find value The sub-components.3.3 structure of the assemblyDie parts to complete the establishment and rationalize the assembly relations between the components, you can generate mold assembly model. Figure 5 for the development of the author Tanya unloading combination of specifications for the 200 mm 160 mm of die structure (omit all the characteristics of thread).3.4 stamping die callStamping die in the Pro / Assembly call directly, but also can be used Pro / TOOLKIT development of visual user interface to call. Pro / TOOLKIT Pro Ecuador is the second development system software package, its main purpose is to allow users or third parties through the expansion of C code Pro / E function, based on the development of Pro / E system of application modules to meet user Special needs. Pro/T00LKIT use of the UI dialog, the menu VC + + and Visual Interface technology, designed to facilitate flexible and practical stamping die design system for interactive interface. Use interface called the structure of various stamping dies, the choice of different specifications of the parts, enter a different parameters to determine sheet parameters as well as their positioning in the mold, and further in the system design punch, die and other structures, Thus greatly enhance the efficiency of stamping die design.4 ConclusionSince stamping process a wide range of complex processes, and the shape of various parts die, stamping dies in achieving standardization and development of flexible design system and the process is very complicated, but flexible stamping die design system of stamping die CAD is to improve the level of the cornerstones . Pro / E powerful components, the assembly of the criteria for the establishment of the functions of stamping dies for the standardization and flexible design of the feasibility of developing systems to provide a strong guarantee. In the development of flexible design system, should ingenious application of Pro / E software provided by an effective tool, considering the different types of standard structural composition of the assembly relations. Between the parts and components meet requirements of size structure changes, and the best use RELATIONS Pro / Program prepared by the mathematical relations systems and procedures to increase the flexibility and practicality. Die flexible design and application development system to avoid a mold designers unnecessary duplication of labor, so that the programme will focus on the concept, process optimization, and other creative work, thus mold the rapid design and production standards have a practical application Significance.8外文翻译冲压模具柔性设计系统的研究摘要：冲压模具设计是一项十分复杂的工作。根据不同的冲压件 单独设计模具需要很 长时间，模具的制造成本也会大大增加。介绍 了应 用模具设计软件ProEngineer开发 冲压模具柔性设计 系统的具体方法，先建立模具零部件的标准数据库 ，调 用标准零件 生成典型的冲压模具组合。在根据冲压件与工艺需要选取不同规格的模具后 ，只需进行 少量的工作 即可完成整个模具的设计过程。这样将使设计时间缩短、制造成本降低，因而对冲压模具的快速设计与规范生产具有重要的现实意义。 关键词：冲压模具；柔性设计系统；标准化；ProE；二次开发目前，在工业发达的国家和地区，模具工业已逐步实现标准化 和系列化。而在我 国，虽然大部分模具企业也有内部 的企业标准，但是普遍标准化程度 不高，冲压模具的标准化也仅限于模架部分的一些零部件。如果要真正地达到节省冲压模具设计时间 、缩短加工周期 、节约成本、减少设计人员与制造人员工作量的目的，就需要开发出冲压模具的柔性设计系统。同时 ，冲压模具标准化和系列化的范 围 也不能只局限于模架部分 ，对固定板 、垫板 、卸料板 、顶料装置等常用零部件甚至是冲压模具结构，都要实现标准化和系列化1。 由于 CADCAM 技术在模具设 计与制造 过程 中广泛应用，因此标准化首先应该从冲压模具 CAD 系统开始。一些大型的商品化 CADCAM软件，如 ProE、UG等。都已开发出专门的注射模具设计软件包。而用于冲压模具设计的专用软件则有待于用户自行开发 。 1 ProE在冲压模具柔性设计系统开发中的应用工具 ProEngineer是 由美 国 PTC公 司开发的一套 CADcAMCAE软件。ProE采用单一的数据 库以及基于特征的、参数化的设计模式，为用户提供 了十分方便的开发冲压模具柔性设汁系统的工具 1.1 Family Table Fanaily Fable称为族表，用来建立结 构相 同或相近零件的尺寸与特征的标准化数据库表 ，是一 个专门用于建立标准零件库的工具 。使用族表前要先创建具有代表性的通用零件(the generic)，然后根据需要将对象添加到族表中进行系列化管理。可以用族表管理 的对象有尺寸 (dimension)、特征(feature)、参数 (parameter)和装配部 件 (component)等。 一个族表可以有多个层次，即一个通用零件可以包含多个子零件 (instance，又称实例)，而每个Instance又可以包含自己的Sub Instance。卸料螺钉(stripperbolt)的族表结构如图 1所示。.图 1 Family Table的层次结构1.2 Relations Relations(关系 )包括数学关系与程序语 法 ，其主要作用是将零件或装配中具有关联性的数据通过尺寸符号 、参数及其他语 法(syntax)建立数学关系式 ，以满足设计要求。ProE系统 中的关系可存在于 Sketch、Feature、Part及 Assembly中。简单句 和判断句是建立关系的常用格式。简单句表示单纯的数学关系，直接反应尺寸之间的关联情况。其使用格式简单，如 d6=LBP一2*d3。判断句适合于一些特定的场合，通过 指定条件来表达设计意图，语法结构为：“IFENDIF”或“IFELSEENDIF”。在“ELSEENDIF”之间条件语句可以多层嵌套。关系在 冲压模具标准化与柔性设计系统的建立过程 中起着十分重要的作用，它具有决定零件的几何形状以及特征之间的位嚣关系 、部件之间的装配关系以及部件是否存在于装配体中等多项功能。 1.3 ProProgram ProProgram(程序)是 ProE提 供的一 个可程序化的工具 ，其语法类似于 VBA和 Office软件中的Macro(宏 )。 当用 户 运用 ProEngineer进 行 设 计时 ，产品的各种信息 会以文件的格式记 录下来。通过对 ProProgran文件编辑 ，可 以实现对特 征的隐 藏、删除与重新排序、对装配部件的添加和替换等操作。这些功能对于建立冲压模具标准件库、标准结构库和柔性设计系统是非常有用的。程序文件在结构上大致可分为标题 、参数设置、关 系式 、添加特征 (部 件)和更新质量属性等 5个部分 。在“INPUTEND INPUT”之 间进行 设嚣参数 ；在“RE1 ATIONSENDREALATIONS”之间添加各种关系；在“ADDEND ADD”之间添加特征(part模块 )或部件 (assembly模块 )。ProProgram 提 供 了3种 类 型 的 参 数 ：NUMBER(数 值 )、STRING(字符串)和 YESNO(是 否)。2 标准模架库的开发 2.1 标准模架的分类与组织 模架是冲压模具的重要组成部分。典型的模架有 3类 ：后侧导柱模架 (back pillar sets)、中间导柱模架 (center pillar sets)和对角导柱模架(diagonal pillar sets)。每一类模架又包括多种的规格。按照凹模周界尺寸划分，后侧导柱模架有 LB规格 22种 、D0规格 6种(即 L=B时)，中间导柱模架 D0规格 9 种 ，对角导柱模架 LB规格 7种2-3 。 为了便于数据的管理与调用，标准模架库的根目录最好建立在 ProE的安装 目录下。由于3类模架在结构上差异较大，故可在模架库的根 目录下分别建立 3个子目录，每个子目录中包含组成模架的所有零件 ，而每一类零件又可以通过 ProE软件提供的族表、关系和程序等工具建立标准数据库。 2.2 标准模架库的建立 冲压模具模架主要由上模座(uppershoe)、下模座(1owershoe)、导柱 (guidepillar)和导套 (guide bushing)等组成 。为了使模具结构完整 ，也可以将模柄(shank)装 配到模架 中。下面介绍后侧导柱模架标准库的建立方法 。 首先创建各零件的三维模型 ，然后将标准手册 数据表中的系列尺寸符号一一添加到族表编辑器中 (也可利用 Excel进行编辑)。在添加尺寸符号前，最好将尺寸符号修改到与手册中的尺寸符号一致。 由于族表不能区分字母的大小写，当同一字母大小并存时建议将大写字母用双字符加以区分，如将 d 表示为 D，而将 D表示成为 DD。标准上模座有两种情况 ：当 LB200 mm160 mn-i时有安装凸台 ，而 当 LB 小于或等于 该范围时无安装凸 台，如图 2所示。判断有无 凸台的方法有两种：一种 方法是利用族表 ，将生成 凸台的Extrude和 Offset两个特征以 Feature的方式添加到族表中，并在这两个特 征下的列表中分别输入“Y”或“N”，以判断某规格的上模座是否具有这两个特征 ；另一种方法是找到这两特征在 ProProgram 中的位置，并在添加 Extrude特征的程序前增加一行判断语句“IF L200 1 B160”，在添加的Offset特征的程序后用“END IF”结束判 断。图 2 上模座 的两种类型2.3标准模架库的建立 在 ProAssembly模块 中同样 可 以使用族表 生成模架标准数据库。在构造装配族表时选用 COrnponent，选取模架中的所有部件，并在族表中输入不同规格模架所需 要的标准件的子零件的名称，如图3所示图 3 后侧导柱标准模架 Family Table结构常用的模柄有 4种类 型：压 入式模柄 、凸缘模 柄、旋入式模柄和浮动模柄。如果将 4种类型的模柄全都装配到模架 的通用模型中，在族表中输入所需要的模柄子零件的名称,利用 INPUT设 置参数，借助 Regenerate命令再生时调用参数来选用不 同的模柄类型。当然 ，也可 以在族表中将不 用的模柄用字符“N”来抑 制，所示的模架系统就是采用的这方法。当设计一个MIM部件，结合线和可能产生毛边的区域必须引起重视。美观和功能两方面都有要求的区域应该针对结合线的影响或者减小毛边的出现进行研究。必须注意的是，MIM所用原材料一般都比大多数塑料材料更容易出毛边，所以，设计MIM模具的每一个模具部件间的配合都必须很精确，如滑块，型心和分型线。记住，产生在MIM制件的毛边会在烧治后变为金属毛边，且很难除去。一般产生于分型线上的结合线：0.002“0.002”分型线分型线上下合模时的配合间隙是结合线不能避免的原因。不管是沿着分型线，还是型心和滑块密封的地方（斜抽心机构处）或者其它模具特征，注射成型的材料在压力作用下被印上两块金属板互相碰触（合模）的结合线痕迹。Fig.27 图示为按设计沿分型线形成的结合线。此例中，结合线紧挨那个圆角上面，在那个面上环绕着制件会产生明显的结合线。这样的结合线经常用磨削工序消除或减小。如在前面“倒角和倒圆”部分说过的，如果底部的圆角不必要且尖角的存在能够接受，整个制件可以设置于上半模内。这样可以使分型线产生在制件底部，且结合线不会再出现。当选择为了容纳制件边缘的部分而将制件结构设置在上下两模内时，磨削可