机械CADCAM教案.doc

机电工程系机 电 工 程 系 教 案课程名称机械CAD/CAM技术授课对象0501课程类型专业选修课授课时间08.9.10任课教师职称助教授课题目机械CAD/CAM技术绪论教学目的及要求1. 掌握CAD/CAM技术的基本概念2. 掌握CAD/CAM技术的作业过程3. 了解CAD/CAM系统的硬件和软件系统4. 了解CAD/CAM技术的基本专业术语教学重点及难点重点：CAD、CAPP、CAM的概念难点：CAD/CAM系统的作业过程教学方法及手段双语教学作业布置习题 1.1 、1.2使用教材和主要参考资料教材：机械CAD/CAM技术，王隆太，机械工业出版社，2005专业资料：1、计算机辅助设计与制造，姚学英，高教，2002 2、机械CAD/CAM（英文版），胡红舟，武汉理工，2004教学后记双语教学、学生接受能力受到挑战附：教学内容Chapter 1Mechanical Engineering CAD/CAM TechnologyChapter 1 Introduction1.1 what is CAD/CAM basic concept一、 CAD computer aided design1、 Define：A CAD system is a design tool in which the computer is used to analyze various aspects of a designed product。2、 Function： idea design drawing edit project analysis overall design3、 结构组成 Structure of CAD systemCAD SystemGraph systemDatabase systemScientific calculationHard wareSoft ware二、 CAM：computer aided manufacturing1、 have no uniform definitionGeneralized CAM：the use of computer in manufacture field Include： technology prepare production control（生产控制） quality control2、 narrow CAM：CANCPPgenerally， CAM used as narrow CAM in CAD/CAM三、 CAPP computer aided process planningCAPP is usually considered to be part of CAM1、 define：根据产品的设计结果进行产品的加工方法和制造过程的设计。2、function： blank design process route design working procedures四、 CAD/CAM integrationIntegration CAD/CAM meant buying the same brand of CAD and CAM products.1、 非集成3c sysCADDrawingCAPPTechnicalDocumentCAMNC codes2、 Integrated 3c sysCADCAPPCAMNC codeNetwork Database Data Interface1.2 CAD/CAM Function and working process一、 Function：建模 Model Building二、 Working process of CAD/CAM systemIdeaCADRPCAPPCAMVMAMProductsNC codesTechnicsDocumentProductPrototypeDesignDocument1.3 Hard ware and software一、 the structure of CAD/CAM sysManKeySoftwareCoreHardwareBaseHardware：Substance Software：core、decide the capability of CAD/CAM system 、man 、designer、key、never be replaced二、 hardware：basic CAD/CAM hardware1、 host computer：workstation or PC inside：CPU、RAM、ROM2、 input device：keyboard、mouse3、 output device：computer monitor、printer plotterCRT：cathode ray tube 阴极射线管LCD：liquid crystal display 液晶显示屏三、 software：common CAD/CAM software1、 system software：OS：Windows 、Linux、 DOS2、 based software：AutoCAD、Master CAM、Pro/e3、 应用软件：application software： Internet application： a system for particular functionMore of them is developed by the user for special function。机 电 工 程 系 教 案课程名称机械CAD/CAM技术授课对象0501课程类型专业课授课时间08.9.17.08.9.24任课教师职称助教授课题目Stayed tech of CAD/CAM (支撑技术)教学目的及要求1.了解CAD/CAM 技术的主要支撑技术2.了解数据库管理技术的基本概念3.了解网络技术的基本概念教学重点及难点1. 数据库技术、网络技术的基本概念2. 两次技术在CAD/CAM 系统的作用教学方法及手段双语教学作业布置2.1，2.7使用教材和主要参考资料同前教学后记版书的英文较多，学生意见较大附：教学内容Chapter 2 Stayed Technology of CAD/CAMWhich Stayed Technology CAD/CAM Needs?Integrated 3C system Info info CAD CAPP CAM Net Database etc equal (and so on) like GT2.1 Database Management Technology DBMSSection 1: Data ManagementIn Mechanical CAD/CAM, there is lots of various date of which structure would be very complex.It include physical character of product capability of material mathematical model kinds of design standards and criteriaCommon Data management:files management database management sys (DBMS) engineering DBMS PDMfiles mag.1.files many of data: organize data according to unified method and criteria generally. The files management sys. is provided by us like 资源管理器2.data files:一组具有相同性质和结构的数据记录的集合。3.data record: 一系列相关的数据项 A series of correlative data item.4. merit of files may :simple smart flexible highly active5.disadvantage of files may：very redundant lack of independence lack of integrity and security DBMS1. DBMS: a software system that facilitates the creation and maintenance and use of an electronic database.(用户不需要了解DBMS的内部结构，会用即可)2. Merits of DBMS compared with file may. independence of data efficient program develops Application program reduce the data redundant assure the accurity and security Engineering DBMS1. Engineering database:满足人们在工程活动中对数据处理要求的数据库。2. the difference compared with DBMS 支持复杂的数据类型 支持复杂的数据结构 具有丰富的语义关联 工程数据的动态管理3. merit of E-DBMS可以管理复杂的工程数据 complex engineering data.具有动态建模功能 dynamic model building可以多库操作及多版操作 PDM(product data management) 1. PDM: is a kind of teda to manage all related info and course of the product.2. architecture of PDM fig 2-183. integrated CAD/CAM base on PDMPDMMouldingMaterial supportPerformanceAnalysisFile mag.Engineering DesignManufacture4. Types of DBMS structurehierarchical model 层项模型Machine Component 1Component 2Component 311Part 3 meshy model 网状模型Machine 1Machine 2Part 1Part 3Part 2Part 4 relation modelnameNo.numMaterialskrew0 11HT150Section 2 Network Tech 2.21. Network: a system of computers and peripherals that are linked together. A network can consist of as few as two computers connected by telephone cable ,fiber cable or radio waves. The internet is an example of large network.2. types of network: WAN: wide area network LAN: load area network 3. structure of LAN network card and media server workstation PC net linker HUB 网络集线器 network os Unix WinNTPCNetwork cardMediaWorkstationLinkerPCServer4. the topology of network bus start/wye HUB cried net 5. Model of CAD/CAM based on network client/server C/S browser/server B/SServerPrinterHUBPc Pc Pc Pc Pc Pc WebserverDatabase serverDatabasemerit of C/S: Highly speed. More interactive merit of B/S: simpled client. Friendly interface 机 电 工 程 系 教 案课程名称机械CAD/CAM技术授课对象0501课程类型专业课授课时间08.10.8. 08.10.15任课教师职称助教授课题目设计数据的处理技术教学目的及要求1.掌握机械手册中数表的处理2.掌握线图的计算机处理3.掌握数表的公式化处理技术教学重点及难点1. 数表的程序化2. 数表的文件化3. 数表的公式化处理教学方法及手段双语教学（专业术语双语化）作业布置使用教材和主要参考资料同前教学后记数表计算机化的作用。概念是重点附：教学内容第三章 设计数据的处理技术Chapter three: treatment of design data 3.1 treatment of numerical tables 常数数表：（const）材料的机械性能，标件尺寸，无函数关系两类数表 列表函数：（list function）表示工程的复杂参数列表数关系可用某个理论公式（theoretical）或经验公式(empirical formula)表示 常数数表：数组列式，数表数量较大可存入文件的database处理方法 列表函数：上述方法外可进行公式化处理，直接求解公式。一、 数表的程序化例3-1 （setq alfa (list 90.0 100.0 )） (setq kalfa (list 0.68 0.74 0.79)例3-2 (defun c:radi()(setq a(list 10 13 17 22 32 38 50)(setq n( )(setq a0( )(setq y0( ) （setq a (getin “请输入v带型号（0 1 2 3 4 5 6 ）”） （if(and ( i 0)(= i 0)(I = n 2) (NEW_Dialog “DRAW” DCL:ID) (Settile “DRAW_Px” (vl_.(carp) (.(cadrp) (action_tile “accept”“(draw2)(done dialog1”) (action_tile “getp”“ (done dialog 2”)(if (= n 0 2 )(setq p (getpoint)(unload_dialog DLLID)(command “dieve” p1p2p3.pn “c”)（defun C:draw2()(setq px lacof (get-title “DRAW_Px”)(setq py lacof (get-title “DRAW_Py”).(setq p0 cimt px py)机 电 工 程 系 教 案课程名称机械CAD/CAM技术授课对象0501课程类型专业课授课时间2任课教师职称助教授课题目CAPP基础教学目的及要求1. 掌握CAPP的含义、分类、作用2. 掌握CAPP的结构3. 掌握CAPP相关的专业术语教学重点及难点1. CAPP的含义、分类2. CAPP的结构教学方法及手段启发式讲授作业布置7.1使用教材和主要参考资料教学后记附：教学内容第七章 计算机辅助工艺设计Chapter 7 CAPP7.1 Introduction一：CAPP技术（Computer Aided Process Planning）1. meaning / connotation:CAD/CAM 技术的纽带产品设计工艺设计产品制造CAD CAPP CAM2. class:retrieval CAPP sys 检索式variant 变异式Generative CAPP sys 创成式Hybrid CAPP 混合式、综合式3. develop:CAPP Process Planning Production PlanningCE Concurrent Engineering 并行工程AM Agile Manufacturing 灵活快捷响应市场 FMSVM virtual VMEPR Enterprise Resource Planning 企业资源计划GMS Computer Intergnated Msys4. use:课本要点二、construction of CAPP工艺文件库Files DB工艺数据库知识库processing零件信息库Aequirement of Partinfo DBCAD人机交互管理interface工艺文件管理Tech files management工艺决策dicision零件信息获取Obtain二、part info processing knowledge DB rule1.content: geomenting info, process info2.mentbed:零件分类编码描述法 part sorting codeGT（group tech）成组技术 mulaely label形状特征描述法 shape charactor respresatation语言描述法 cldvanced languadge只是表示法 AI (Artifred Zntellgeule) knowledgeCAD结果输入 outcome总结：轴类零件的输入、箱体类零件的输入是CAPP的一个难点。7.2 CAPP的基本原理和方法Basic Prineples and methods of CAPP Variant CAPP Common CAPP: Generative CAPP Hybrid CAPPCAPP系统开发的根据：企业特点、产品类