The multi-thread cylindrical grinding worm in order to grind the flank of the gear due to the dressing manner and

摘要

PROBLEM TO BE SOLVED: To provide a method and a tool dressing a multi-thread cylindrical grinding worm for grinding a surface of dedendum of one gear wheel, especially a small-sized gear wheel.;SOLUTION: Preferably, in order to profile a multi-thread grinding worm 4 for continuous development grinding of small-sized gear wheel teeth, a stripping zone 6, a preliminary profiling zone 7, and a finish profiling 8 are provided in a rotary dressing tool coated with abrasive grains. After turned to a dressing position in regard to a turning axis F orthogonal to a rotating shaft of the dressing tool, the profiling zones are successively moved so as to be engaged with the grinding worm 4. The number of profiling ribs in the preliminary profiling zone and the finish profiling zone is made to be equal to or larger than the number of thread starts of the grinding worm.;COPYRIGHT: (C)2006,JPO&NCIPI