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为深入研究并联坐标测量机的工作空间、控制算法和测量精度等 ,必须对其进行机构位置分析 .建立和求解测量空间模型和测量模型是位置分析基本任务 ,是一项核心技术 .为降低测量模型建立和求解的难度 ,设计了演化Stewart型的并联六坐标测量机 ,介绍了其特点 .建立了所设计并联六坐标测量机位置分析的坐标系 ,采用矢量分析法和等效机构法 ,分别获得了测量空间模型和测量模型 .利用Matlab语言编制程序 ,得到了不同初始条件下两种模型的数值解 ,通过计算机仿真验证了两种模型的正确性 .测量空间模型和测量模型的研究为并联六坐标测量机的性能分析提供了依据
In order to further study the working space, control algorithm and measurement accuracy of parallel coordinate measuring machine, it is necessary to analyze the position of the mechanism.It is a core technology to establish and solve the measurement space model and the measurement model, which is a core technology.In order to reduce the measurement The difficulty of establishing and solving the model, an evolution Stewart-type parallel six-coordinate measuring machine is designed and its characteristics are introduced.The coordinate system of the position analysis of the six-coordinate measuring machine designed in parallel is established, and vector analysis method and equivalent mechanism method The measurement space model and the measurement model are obtained.The numerical programs of the two models under different initial conditions are obtained by programming in Matlab language and the correctness of the two models is verified by computer simulation.The study on the measurement space model and the measurement model is parallel Six coordinate measuring machine provides the basis for performance analysis