Patent ID: 6491568
Filing Date: 2002-12-10
Classification: B24B

Abstract:
A method of profiling flanks of a thread of a cylindrical grinding worm for the diagonal generating grinding of gears, by a disc shaped profiling tool, the grinding worm having a width and the thread having al depth, the grinding worm rotating around a first axis and the profiling tool rotating around a second axis and being coated on a torus shaped peripheral first working surface with grains of hard material, the method comprising the steps of:a) moving the profiling tool relative to the grinding worm in a plurality of successive strokes parallel to the first axis; b) synchronising an axial position of the profiling tool relative to the grinding worm with a rotation angle of the grinding worm during each of these strokes; c) performing infeed steps of the profiling tool relative to the grinding worm perpendicular to the first axis between successive strokes, each infeed step being only a fraction of the depth of the thread; and d) superimposing in steps a) and b) an additional correcting movement in the direction of the first axis over at least a first section of the width of the grinding worm, said additional correcting movement changing continuously over said first section and changing continuously between successive infeed steps towards a middle of the depth of the thread.