Abstract
A CAD variation geometry approach is proposed for simulation of pre-solving and pre-modifying the accurate active forces of a 5-DOF 4SPS+SPR parallel machine tool (PMT) in normal machining of a three-dimension (3D) free-form surface s. First, an initial simulation mechanism of the 4SPS+SPR PMT is created. Second, a variable workload which is composed of a tangent force, a normal force, and a rotational torque of the tool is constructed and applied to the center of the platform in the simulation of machining s. Third, the whole simulation mechanism of the 4SPS+SPR PMT with Euler angles and a variable workload is created, and the displacement and the accurate active forces of this simulation PMT are solved in normal machining of s. The solutions of the simulation coincide with the analytic ones.
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Lu, Y., Xu, J. & Yu, J. Simulation of pre-solving active forces of a 4SPS+SPR parallel machine tool in normal machining a 3D free-form surface. Int J Adv Manuf Technol 46, 21–29 (2010). https://doi.org/10.1007/s00170-009-2091-y
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DOI: https://doi.org/10.1007/s00170-009-2091-y