Patent ID: 6832876
Filing Date: 2004-12-21
Classification: B23C,B23Q,G05B,Y02P,Y10T

Abstract:
A machine tool arranged to machine an object from material that is being processed and having a material-remover,said material-remover having at least two degrees of freedom of movement and at an instant being arranged to move with a velocity and to remove an amount of material up to a depth of cut from the material that is being processed, processing circuitry being provided and arranged to control the movement of said material-remover including being arranged to control said depth of cut, the processing circuitry further comprising a track planner arranged to associate one or more tracks around the perimeter of the object to be machined, the or each said track comprising a locus of paths bounded by the minimum and maximum depths of cut that the material-remover can be controlled along around the object in a single pass, the processing circuitry being further arranged to determine the path also which the material-remover is caused to move from within the or each track, allowing said depth of cut to vary such that a predetermined speed is maintained as the material-remover moves along the determined path, the processing circuitry further comprising a node associator arranged to associate nodes, each having a radius, with predetermined points of the or each track such that the determined path is tangent to the nodes.