Kinematic analysis of a biglide parallel grinder

A kinematic analysis and mechanism description of a biglide parallel grinder with six-controlled degree of freedom is presented in this paper. In comparison with hexapod machines, the mechanical structure and motion of this biglide parallel grinder are simple. Therefore, it is easy for this biglide parallel grinder to accomplish real-time control. Its workspace-to-volume ratio is even larger than that of conventional machine tools, and there is also no singularity configuration. Because of using parallel fixed length links, this biglide parallel grinder can reduce the thermal deformation effects on its accuracy. In addition to grinding, this grinder can be used for welding, painting, fixturing, material handling and so on.