Process and device for providing a shaft with splines
AssigneeGKN Automotive AG
InventorsHorst Statezni, Peter Fuhrman
Life of this patent
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Abstract
A forming process for providing a shaft with splines in that the shaft is provided with splines in such a way that the complete tooth depth is ensured over the entire length to be provided with teeth and any distortions which may occur are minimized in the course of the pressing operation undertaken to provide the teeth. The forming process includes a second force directed against the operational force which is applied to the free end of the toothed shaft.
Claims18
A method for forming at least one set of splines on a shaft, said method comprising the steps of:
- applying a first actuating force, via a first punch, between said shaft and a first drawing die to form a first set of splines on a first end of said shaft;
- contacting a second punch prior to entering said first drawing die;
- and
- applying a first counter-force to said first end of said shaft, via said second punch upon contact with said second punch, said first counter-force being lower than said first actuating force.
An apparatus for forming at least one set of splines on a shaft, said apparatus comprising:
- a tensioning plate;
- a receiving bushing secured to said tensioning plate;
- a drawing die disposed within said receiving bushing;
- a guiding bushing disposed within said receiving bushing;
- and
- a punch disposed within said guiding bushing, said punch capable of axial movement with respect to said guiding bushing and said drawing die such that said punch passes through said drawing die such that a workpiece contacts said punch prior to the workpiece entering said die.
An apparatus for forming at least one set of splines on a shaft, said apparatus comprising:
- a clamping device for holding said shaft;
- a first drawing die disposed at a first end of said shaft, said first drawing die capable of axial movement with respect to said shaft such that said first drawing die forms a first set of splines on said first end of said shaft upon exertion of a first actuating force;
- and
- a first punch extending through said first drawing die such that a workpiece contacts said punch prior to the workpiece entering said die, said first punch capable of exerting a first counter-force to said first end of said shaft.
Dependencies are inferred from the claim text.