基于特征的回转体零件CAD/CAPP应用研究
摘要
目前,绝大多数的CAPP系统仍以二维绘图软件作为开发平台,信息的传递受到很大限制。三维实体造型能描述更多的零件制造信息,为CAX的集成提供了一个基础。本文在三维绘图软件的基础上针对回转体零件CAD/CAPP系统的集成以及CAPP系统中工艺决策的方式进行了研究。
课题选取Pro/E为开发平台,以回转体为研究对象,研究的主要内容:基于三维特征的零件设计和有限元分析及在VC环境下如何从CAD系统中提取CAPP系统所需要的零件信息;CAPP系统中的工艺决策机制及基于特征工艺链的零件工艺设计;基于特征回退技术的工序间模型自动生成方法。
在课题开发过程中使用的方法有:(1)基于特征的零件信息描述方法。采用这种描述方法解决了现有集成系统存在的集成度不高、数据不全和描述层次低的问题。(2)基于特征和数据库的工艺决策方法。采用面向对象的技术将特征的工艺方法封装并保存在关系型数据库中,决策和工艺数据分离,且易于实现数据的共享。(3)特征回退技术。以此方法生成零件的工序间模型,为工序图的生成打下基础。
系统用户界面友好,操作方便,运行稳定,易于扩充。运行结果基本上实现设计目标。
Currently, the majority of CAPP systems still use 2D drawing software as the developing platform and the information delivered is very limited. 3D solid modeling can be used as the base for integration of CAX because of its describing the more manufacturing information of the parts. The paper has been researched the integration of the CAPP system and the methods of process decision aimed at the revolved parts based on the 3D drawing software.
The paper chooses Pro/E as the developing platform and the revolved parts as research objects. Main contents: Part designing and finite element analyzing based on 3D feature and how to getting the information of the parts that the CAPP system needs from CAD system under the environment of VC++, the process decision of the CAPP system and design of the feature based on process chain, the method with automatically building models according to the technology based on feature back.
Some methods have been used in the paper. The first is the method of describing the parts’information based on parts feature. The low degrees of the integration, scarcity of the data, and the low lever of describing information have been solved. The second is the process decision method based on feature and database of parts. Choosing the object oriented technology can package and save the process method of feature to the SQL database, divide the process data and decision and share the data easily. The third is the technology of feature back. This method can build the working procedure models and the working procedure chart can work on it.
The interface of the system is friendly. It is handled, expanded and performed stably. The results show the design is successful.
课题选取Pro/E为开发平台,以回转体为研究对象,研究的主要内容:基于三维特征的零件设计和有限元分析及在VC环境下如何从CAD系统中提取CAPP系统所需要的零件信息;CAPP系统中的工艺决策机制及基于特征工艺链的零件工艺设计;基于特征回退技术的工序间模型自动生成方法。
在课题开发过程中使用的方法有:(1)基于特征的零件信息描述方法。采用这种描述方法解决了现有集成系统存在的集成度不高、数据不全和描述层次低的问题。(2)基于特征和数据库的工艺决策方法。采用面向对象的技术将特征的工艺方法封装并保存在关系型数据库中,决策和工艺数据分离,且易于实现数据的共享。(3)特征回退技术。以此方法生成零件的工序间模型,为工序图的生成打下基础。
系统用户界面友好,操作方便,运行稳定,易于扩充。运行结果基本上实现设计目标。
Currently, the majority of CAPP systems still use 2D drawing software as the developing platform and the information delivered is very limited. 3D solid modeling can be used as the base for integration of CAX because of its describing the more manufacturing information of the parts. The paper has been researched the integration of the CAPP system and the methods of process decision aimed at the revolved parts based on the 3D drawing software.
The paper chooses Pro/E as the developing platform and the revolved parts as research objects. Main contents: Part designing and finite element analyzing based on 3D feature and how to getting the information of the parts that the CAPP system needs from CAD system under the environment of VC++, the process decision of the CAPP system and design of the feature based on process chain, the method with automatically building models according to the technology based on feature back.
Some methods have been used in the paper. The first is the method of describing the parts’information based on parts feature. The low degrees of the integration, scarcity of the data, and the low lever of describing information have been solved. The second is the process decision method based on feature and database of parts. Choosing the object oriented technology can package and save the process method of feature to the SQL database, divide the process data and decision and share the data easily. The third is the technology of feature back. This method can build the working procedure models and the working procedure chart can work on it.
The interface of the system is friendly. It is handled, expanded and performed stably. The results show the design is successful.
引文
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[44] 黄 传 勇 . 基 于 Pro/E 的 CAD/CAM 一 体 化 技 术 研 究 [J]. 机 电 产 品 开 发 与 创 新 ,2005,18(3):110-112
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[2] 朱恒山,艾志久,邓家祺.CAD与CAE集成的研究[J].计算机工程与设计,2002(9):22-25.
[3] 刘敏珊,李成刚,董其任等.应用工程数据库开发CAD/CAE集成系统[J].石油机械,2005,33(1):24-26
[4] 赵家黎.基于Pro/E的CAD/CAPP/CAM集成系统的开发与研究[D]:[硕士学位论文].兰州:兰州理工大学,2004 [5l 彭志,徐世新,彭巧玲.基于Pro/E二次开发的CAPP工序图生成系统[J].制造技术与机床,2005(3):17-20
[6] 孙波,王芳,丁萍等.齿轮类零件CAPP系统中工序图的自动生成[J].西北农林科技术大学学报,2002(10):195-198
[7] 余廷,于红霞,周雄辉.CAD/CAPP环境下基于三维模型的工序图逆向生成[J].现代制造工程,2002(12):21-23
[8] 王恒,宁汝新.面向制造的特征设计和工序图形的自动生成[J].北京理工大学学报,2004(5):395-397
[9] 张兴发,秦付军,陈肇田.尺寸驱动工序图生成系统[J].四川工业学院学报,1998(3):19-22
[10] 吴江,廖文和,刘长毅.CAPP系统中工序图自动生成的研究[J].电气技术与自动化,2004,33(5):25-27
[11] 胡赤兵,李宗刚,邬再新.基于Pro/E的CAD/CAPP/CAM集成系统二次开发技术研究[J].现代制造工程,2004(1):39-41
[12] 谢海波,李岚,马晓丽.基于特征设计的轴类零件CAD/CAPP集成系统研究[J].中国制造业信息化,2004,33(6):74-76
[13] 苏艳艳.基于三维特征模型的零件制造信息的提取[J].机电工程,2004,21(11):48-51
[14] 刘坚,刘子建.基于特征技术的轴类零件CAD系统设计[J].湖南大学学报,2000,27(5):44-48
[15] 罗意平,王玉图等.利用用户自定义特征实现的冲压CAD/CAPP集成系统[J].制造业自动化,2003,25(8):30-32
[16] 范牧昌.以特征造型为基础的CAD/CAM系统[J].制造业自动化,2001,23(5):17-20
[17] 虞春,周雄辉,张永清.特征造型与有限元分析的集成[J].计算机辅助设计与图形学报,1999,11(1):62-65
[18] 张玉霞,李伟华.零件信息集成和专家系统型CAPP[J].机电工程技术,2004,33(8):61-63
[19] 周一丹,廖萍,姚兴田.机械加工工艺过程特征及其在CAPP中的应用[J].机械制造,2004,42(484):54-58
[20] 施平,魏志强.轴类零件CAD/CAPP/CAM一体化连接数据库设计与实现[J].哈尔滨工业大学学报,1997,29(1):58-60
[21] 黎荣,王金诺.建立基于特征的零件工艺数据库[J].中国制造业信息化,2004(11):81-84
[22] 虞春,李峰,姚华.基于特征的冲压件CAD/CAPP/CAE集成[J].西北工业大学学报,2000(4):513-516
[23] 秦宝荣,王宁生.箱体类零件工艺路线分层决策方法[J].制造技术与机床,2002(12):47-50
[24] 孔宪光,许建新,区晓亮.面向对象的综合智能化CAPP平台研究[J].模具技术,1999(3):3-9
[25] 赵宇,单忠臣,顾金凤.基于特征的回转体零件工艺文件自动生成方法研究[J].应用科技,2004(8):5-7
[26] 郭新玲,李韶杰,邱尚富.MFC类库在Pro/E二次开发中的应用[J].现代制造工程,2004(10):49-51
[27] 侯晓林,刘爱华,李京河.Pro/Engineer中零件设计尺寸信息自动反馈技术的探讨[J].机械设计,2004,21(7):49-51
[28] 张宇峰,韩晓健.创成式CAPP系统中开放式知识库的设计与实现[J].制造业自动化,2005(6):70-73
[29] 赖朝安,李振南,李洁.Pro/E与MFC的接口开发及自动建模技术研究[J].机电工程技术,2001(3):41-44
[30] 侯晓林,刘爱华.尺寸直接驱动零件模型更新的技术[J].山东大学学报,2004,34(2):14-17
[31] 刘海江,孙玉国,陈阳.缸体CAPP系统制造特征建模与非几何信息获取[J].同济大学学报,2002,31(10):1201-1205
[32] 高永祥,尹显明.基于Pro/Engineer的特征提取方法及模块实现[J].机械工程与自动化,2005(1):15-17
[33] 赵金才,刘新凯,刘书桂.基于Pro/Toolkit的实体模型尺寸信息的提取[J].组合机床与自动化加工技术,2005(3):22-24
[34] 谢世坤,黄菊花,杨国泰.CAD/CAE集成中的有限元模型转换之研究[J].中国机械工程,2005,16(5):428-431
[35] 姚文琳,李华,孔庆馥.CAPP系统中的工艺数据库与知识库[J].山东轻工业学院学报,2001(6):22-26
[36] 谭加才,康颖安,王先安.基于工序特征的曲轴CAD/CAPP系统的研究与开发[J].机械研究与应用,2004,17(3):70-71
[37] 胡赤兵,熊海洋等.基于Pro/E齿轮加工CAD/CAPP/CAM应用系统的研究与开发[J].兰州理工大学学报,2004,30(6):40-43
[38] 贾秀杰.回转体零件CAPP的工艺创成方法[J].机械工艺师,2000(2):17-18
[39] 朱华炳,周志尚,尹志强.CAPP系统中工序图的自动生成技术研究[J].制造业自动化,2000,22(11):24-27
[40] 陶建华,宗志坚,刘作毅.基于数据库的典型工艺CAPP系统[J].机械设计与研究,2001,17(11):34-38
[41] 李浩平,吴海华,曾梦雄.基于特征的回转类零件CAD/CAPP集成系统信息描述[J].现代设计技术,2004(11):85-86
[42] 杜春涛,汲淑丽.CAPP处理工艺卡片内工序图问题的研究[J].现代制造工程,2005(1):53-55
[43] 杜春涛,铁军.CAPP系统开发过程中工艺卡片定制问题的研究[J].北方工业大学学报,2005,17(1):57-60
[44] 黄 传 勇 . 基 于 Pro/E 的 CAD/CAM 一 体 化 技 术 研 究 [J]. 机 电 产 品 开 发 与 创 新 ,2005,18(3):110-112
[45] 胡立平.基于特征的轴类零件 CAD/CAPP 系统的研究[D].[硕士学位论文].南京:东南大学,2004
[46] 姚英学,蔡颖主编.计算机辅助设计与制造[M].高教出版社,2001
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