Method of manufacturing clamping jaws, clamping jaw and drill chuck
AssigneeRoehm GmbH
InventorsPeter SCHENK, Hans BAUMANN, Stefan KEMPTER
Life of this patent
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Abstract
A method of manufacturing clamping jaws for drill chucks, in which a pin is provided made from a blank, on which are formed a row of teeth furnished for engaging in a thread associated with the drill chuck and, axially offset on the side of the pin opposite the row of teeth, a clamping surface extending at an angle to the axis of the pin; in which at least one of the steps of quenching, carburizing, nitriding, and annealing is carried out to improve the material properties of the pin; and in which additional hardening is subsequently carried out in at least one region of the clamping jaws. The invention also relates to a clamping jaw and to a drill chuck having such clamping jaws.
Claims10
A method of manufacturing a clamping jaw for a drill chuck, the method comprising:
- providing a pin from a blank;
- forming a row of teeth furnished for engaging in a thread associated with the drill chuck;
- and
- forming a clamping surface extending at an angle to an axis of the pin and on a side of the pin opposite the row of teeth and axially offset,
- wherein at least one of the steps of quenching, carburizing, nitriding, or annealing is carried out to improve the material properties of the pin, and
- wherein additional hardening is subsequently carried out in at least one region of the clamping jaws.
A clamping jaw comprising:
- a steel cylindrical pin on which is formed a row of teeth for engaging in a thread associated with a drill chuck;
- a clamping surface formed axially offset on a side opposite the row of teeth that, in the assembled state, runs parallel to an axis of a drill chuck;
- and
- a clamping bevel formed as a single unit on the clamping surface with a hardness greater than that of the cylindrical pin.
Dependencies are inferred from the claim text.