并联六坐标测量机的虚拟样机  

Virtual Prototype of Six-freedom-degree Parallel Mechanism CMM

作　　者：孟婥[1] 车仁生[2] 李志明[3] 

机构地区：[1]东华大学机械工程学院,上海200051 [2]哈尔滨工业大学电气工程与自动化学院,黑龙江哈尔滨150001 [3]哈尔滨理工大学机械动力工程学院,黑龙江哈尔滨150080

出　　处：《计算机集成制造系统-CIMS》2004年第2期215-218,共4页

基　　金：黑龙江省政府资助博士后研究项目。~~

摘　　要：并联坐标测量机是一种新类型的坐标测量机,它模拟多足生物的运动形式。由于运动的复杂性,只凭计算数据很难直观、准确地判断测头的位置和姿态,必须通过虚拟样机模拟并联坐标测量机的作业过程。在Win dows2000环境下,通过VC++调用OpenGL函数,对测量机的各部分零件进行实体造型,并按照零件间的装配关系进行实体装配,获得坐标测量机的三维仿真图,再与运动学位置分析的正解模型和反解模型相结合,开发出能实时运动的三维并联六坐标测量机的虚拟样机,实现高效率、低成本的仿真作业。经测试证明,该系统运行可靠,效果逼真,为研制真实样机提供了手段。The parallel mechanism CMM (coordinate measuring machine), as a new type of CMM, simulates the motion form of multiped. Because of its complicated motion, it is difficult to judge the position and stance of probe intuitionisticly and exactly only by calculational data. It is obligatory to simulate the operation process of parallel mechanism CMM by virtual prototype. In the paper the OpenGL functions are transferred by VC++ under the windows 2000 so that the various parts of CMM are entity-sculpted, and entity-assembled according to the constructional relation between parts. So the 3D simulative figure of CMM is obtained. Moreover, combining with the kinematics obverse solution model and reverse solution model of position analysis, the virtual prototype of six-freedom-degree parallel mechanism CMM is developed, which can motion in real time and realize simulative operation in high efficiency and low cost. It is proved by test that this system runs reliably, has realistic effect and provides means for manufacturing actual prototype.

关 键 词：并联六坐标测量机 虚拟样机 几何建模 运动建模 

分 类 号：TG806[金属学及工艺—公差测量技术]