Process and machine for fine machining of tooth flanks of geared workpieces
AssigneeThe Gleason Works
InventorsManfred Huber, Johannes Becker
Life of this patent
Estimating the term…
Abstract
A process and a machine for fine machining of the tooth flanks of geared workpieces with a driven tool in the form of a gear wheel or worm gear which is in meshing contact with a workpiece, the axes of tool and workpiece intersecting. During machining of the workpiece the tool is driven in a direction of rotation which remains the same and adjustable torque values are applied to the workpiece in one direction and subsequently in the opposite direction.
Claims13
A process for fine machining of the tooth flanks of geared workpieces with a driven tool in the form of a gearwheel or worm gear which is in meshing contact with a workpiece, the axes of tool and workpiece intersecting, said process including the steps of:
- driving said tool in a direction of rotation which remains the same during machining of the workpiece, and,
- applying adjustable torque values to the workpiece in one direction and then in the opposite direction.
A machine for fine machining of tooth flanks of geared workpieces with a tool in the form of a gearwheel or worm gear which is in meshing contact with a workpiece, said machine comprising:
- a bench,
- a first slide movably mounted on the bench, which slide may be driven in movement along a first axis X,
- a second slide movably mounted on the first slide, which second slide may be driven in movement along a second axis Z at a right angle to the first axis X,
- a tool head rotatably connected to the second slide, which tool head may be pivoted about a third axis A parallel to the first axis X for adjustment of the axis intersection angle between tool and workpiece,
- a motor mounted on the tool head for driving a tool spindle, and,
- a workpiece spindle, with chucking equipment for clamping a workpiece, characterized in that:
- an index table is rotatably connected to a bench for rotation about an axis E parallel to the second axis Z, said index table being driven by a motor in rotary movement about specific angles of rotation,
- at least two workpiece spindles being mounted on the index table, the axes of rotation C2, C3 of said spindles being parallel to the axis E and spaced the same distance from said E axis,
- an index which blocks the index table from rotation in the machining stage,
- each of the workpiece spindles is connected to a drive motor and each workpiece spindle includes a sensor therewith for establishment of an angular position of the teeth of the workpiece relative to the axis C2, C3 of the workpiece,
- the drive motors of the tool spindle and of the workpiece spindles are coupled by electronic gearing which rotates tool and workpiece relative to each other on the basis of a signal from the sensor so that the teeth of the workpiece will be located in a correct meshing position respectively to the tool.
Dependencies are inferred from the claim text.