Method for grinding a gear wheel by means of a worm grinding wheel, and a dressing roll for dressing the worm grinding wheel

    公开(公告)号:US12128491B2

    公开(公告)日:2024-10-29

    申请号:US17627283

    申请日:2020-07-02

    发明人: Sergiy Grinko

    IPC分类号: B23F1/02 B23F21/02 B23F23/12

    摘要: A method for grinding a gear wheel by a worm grinding wheel in a grinding machine, wherein the tooth flanks of the gear wheel are ground by the abrasive flanks of the profiling of the worm grinding wheel. In order to increase the productivity of the grinding, the method includes the following steps: a) calculating the engagement ratios between the abrasive flanks of the profiling of the worm grinding wheel and the tooth flanks of the gear wheel, wherein the size of the profile forming zone is determined; b) determining a geometry modified in respect of the geometry determined according to step a) such that the profile forming zone is minimal; c) profiling the worm grinding wheel with the geometry which has thus resulted; d) grinding the gear wheel by the worm grinding wheel profiled according to step c).

    MULTILAYER GRINDSTONE FOR GEAR GRINDING

    公开(公告)号:US20220347774A1

    公开(公告)日:2022-11-03

    申请号:US17638265

    申请日:2020-07-17

    摘要: A gear-grinding multilayer grindstone includes: a first thread-shaped grindstone and a second thread-shaped grindstone that are fixed to each other, such that the first and second thread-shaped grindstones have a rotational axis that is common to the first and second thread-shaped grindstones; and a thread-shaped groove that is provided in a first outer circumferential surface of the first thread-shaped grindstone and a second outer circumferential surface of the second thread-shaped grindstone. The thread-shaped groove extends continuously over the first outer circumferential surface and the second outer circumferential surface. The second thread-shaped grindstone is constituted by abrasive cloths that are laminated on each other, and has a higher elasticity than the first thread-shaped grindstone.

    Method for producing a removal of material on a tooth end edge and device designed therefor

    公开(公告)号:US11179788B2

    公开(公告)日:2021-11-23

    申请号:US16083653

    申请日:2017-04-03

    发明人: Ralf Schmezer

    摘要: The invention relates to a method for producing a removal of material on a tooth end edge of a workpiece toothing with a rotationally driven chamfering tool in a machining operation brought about by controlled axial machine movements between the chamfering tool and the likewise rotationally driven workpiece toothing, wherein material is removed with a geometrically undefined cutting edge and the removal takes place in a coordinated action between a profiling, in particular, an alterable profiling, of the chamfering tool and a machine control used for the machining operation, performed in dependence on predetermined parameters that are characteristic of the removal of material to be produced.

    Cutters For ROV Propeller Gear Modification
    49.
    发明申请

    公开(公告)号:US20190047064A1

    公开(公告)日:2019-02-14

    申请号:US16074864

    申请日:2017-10-17

    IPC分类号: B23F21/02

    摘要: Cutters for ROV propeller gear modification comprising cut holder, a hob provided on the cut holder and comprising a plurality of continuous linearly arranged hobbings. Each hobbing has a tooth depth of 1.65 cm including a tooth dedendum of 0.975 cm and a tooth addendum of 0.675 cm, a tooth thickness of 0.946 cm, an addendum circle radius of 0.324 cm, a dedendum circle radius of 0.163 cm and a dextrorotatory tooth thread with a lead angle of 1° 7′18″. Each two adjacent teeth have a pitch of 1.885 cm. The hob has a modulus of 0.6, 12 slots, a pressure angle of 20°. A blade groove has a spiral angle of 0° with its spiral direction being a straight flute. A base circle radius of the hob is 0.823 cm and a base circle lead angle is to 20° 1′49″. The modified gear of ROV propeller is obtained by the hob processing.