| This thesis study motion simulation on parallel machine tool of5-UPS/PRPU.Firstly, reverse position solution of middle branch is analysed. The resultindicates that middle branch restrain rotation which moving platform rotatesround the self-normal line. Inverse solution analysis is presented separatedlybased on the center of movable platform.Secondly, the geometrical restrictions are constructed and workspacesimulation of parallel machine tool is finished.After drawing every part model of parallel machine tool based onparametric design with SolidWorks2000, they are virtual assembled. Theparametric three-dimensional solid model of parallel machine tool according tocertain assembly procedure is build.Finally, the thesis explains the method of motion simulation. NC codesthat Cimatron E4.2 created via format alternate, interpolation and coordinatealternate are transformed to data files in machine coordinate system. In VisualBasic6.0 language environment, these data files are read. Driving rod length isobtained according to inverse solution equation. Under the role of geometricalrestrictions, every drive rod is elongated prescriptive numerical value with theobject of SolidWorks2000.The motion simulation of the machine tool ofparallel is realized .A example of complex curve is actualized.
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