Method for machining bevel gears using an eccentrically-moved dressable cup grinding wheel
AssigneeKlingelnberg GmbH
InventorRolf Schalaster
Life of this patent
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Abstract
A method which is executed in a grinding machine comprising a) rotationally driving a cup grinding wheel around an axis of rotation of a tool spindle at a first speed, b) rotationally driving a dressing tool around an axis of rotation of a dressing spindle at a second speed, c) carrying out a dressing method using the dressing tool, wherein a predetermined, fixed speed ratio is specified between the first speed and the second speed, and after steps (a), (b), and (c): i. eccentrically rotationally driving the cup grinding wheel around the axis of rotation of the tool spindle at a first machining speed using the eccentric drive, ii. carrying out a grinding method, wherein the bevel gear workpiece is machined by grinding using the cup grinding wheel.
Claims17
A method comprising:
- machining a bevel gear workpiece using a grinding machine including
- a tool spindle configured to receive a cup grinding wheel with an abrasive surface and to rotationally drive the cup grinding wheel around an axis of rotation of the tool spindle, wherein the tool spindle comprises an eccentric drive;
- a dressing spindle configured to receive a dressing tool configured to dress the cup grinding wheel, and to rotationally drive the dressing tool around an axis of rotation of the dressing spindle, and
- a workpiece spindle configured to receive the bevel gear workpiece and to rotationally drive the bevel gear workpiece around an axis of rotation of the bevel gear workpiece;
- wherein the machining step includes
- a) rotationally driving the cup grinding wheel around the axis of rotation of the tool spindle at a first speed,
- b) rotationally driving the dressing tool around the axis of rotation of the dressing spindle at a second speed, and
- c) dressing the cup grinding wheel using the dressing tool at a predetermined, fixed speed ratio between the first speed and the second speed, wherein the fixed speed ratio defines a ratio of (1) the first speed to the second speed or (2) the second speed to the first speed;
- and, after steps (a), (b), and (c):
- i. eccentrically rotationally driving the cup grinding wheel around the axis of rotation of the tool spindle at a first machining speed using the eccentric drive, and
- ii. grinding machining the bevel gear workpiece using the cup grinding wheel.
Dependencies are inferred from the claim text.