Grinding machine for continuous roll grinding of gears
AssigneeZahnradfabrik Friedrichshafen AG
InventorWerner Riha
Life of this patent
Estimating the term…
Abstract
A grinding machine for continuous roll grinding of gears having a workpiece (6) clamped on a bench (1) and a grinding worm (8), the rotary drives of which are connected by a play-free mechanical hypoid transmission. The grinding worm (8) is continuously dressed during a processing operation. The coordination of grinding worm coils and gear spaces is specially simple and clear and such a roll grinding machine is thereby suited to be automatically loaded.
Claims2
A grinding machine for continuous roll grinding of a workpiece being rotatably driven about a workpiece rotational axis by a rotary drive, a grinding worm being rotatably driven and being movable into engagement with said workpiece for achieving said roll grinding, and a device for continuously dressing said grinding worm during said roll grinding,
- characterized in that a spiral tooth hypoid drive is provided for driving said workpiece;
- said rotary drive drives, via a gear mechanism, both said grinding worm and said spiral tooth hypoid drive;
- means is provided for allowing movement of said grinding worm parallel to said workpiece rotational axis and radially toward and away from said workpiece rotational axis independently, and a spiral direction differential is located between said rotary drive and said spiral tooth hypoid drive.
A grinding machine for continuous roll grinding of a workpiece being rotatably driven about a workpiece rotational axis by a rotary drive, a grinding worm being rotatably driven and being movable into engagement with said workpiece for achieving said roll grinding, and a device for continuously dressing said grinding worm during said roll grinding,
- characterized in that a spiral tooth hypoid drive is provided for driving said workpiece;
- said rotary drive drives, via a gear mechanism, both said grinding worm and said spiral tooth hypoid drive;
- means is provided for allowing movement of said grinding worm parallel to said workpiece rotational axis and radially toward and away from said workpiece rotational axis independently, and a spiral direction differential is located between said rotary drive and said spiral tooth hypoid drive and is controlled by an NC-control unit.
Dependencies are inferred from the claim text.