液压挖掘机动臂的参数化建模研究

摘要

Aiming at the problems of cumbersome process and so many parameters in modeling the boom of hydraulic excavator's working de-rice, parametric design of the boom was realized by the database technology and the secondary development of UG software to enhance design efficiency. Firstly, the CAD model of a certain type of excavators boom was built by UC software, the control program and user interface dialog were developed by the secondary development tools of UC and C+ + language. Secondly, the database of model was established with the database technology,the database of model' s geometric parameters were founded by Access and the source of datas was registed, the dialogue frame of CDataChoice and CInsertDialog was created to access the database and call the geometric parameters of model,or edit and modify the parameters of database. Finally,the environment variable of system was changed,the model was obtained by inputing or calling relevant parameters. The research results indicate that, this parameteric design method can greatly simplify the process of design, and it can increase the efficiency.%针对液压挖掘机工作装置中动臂模型设计时步骤繁琐、参数较多等问题,为了提高设计效率,利用数据库技术和UG软件的二次开发功能实现了液压挖掘机动臂模型的参数化设计.首先,通过UG软件对某型号挖掘机的动臂结构进行了建模；利用UG软件二次开发工具,并结合C++语言开发出了模型的控制程序和用户界面对话框；然后,运用数据库技术建立了动臂模型数据库,利用Access建立了动臂模型几何参数的数据库并注册了数据源；创建了对话框CDataChoice和ClnsertDialog访问数据库,并调用模型的几何参数或对数据库中的参数进行了编辑和修改；最后,修改了系统的环境变量,通过输入或调用相关参数得到了所需模型.研究结果表明,该参数化设计方法可以大大简化建模过程,提高设计效率.