Equipment and method for forming a front toothing on an inner ring of a wheel hub
OwnerLaura Sguotti, Davide Antonio Olivieriinventors
Life of this patent
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Abstract
Equipment and method in which a creator tool is pressed against an annular upset collar of an inner ring of a wheel hub and is provided towards the collar with a toothing complementary to the toothing to be obtained, formed by a plurality of radial teeth separated by respective radial spaces, all arranged radially in a circular crown, symmetrically with respect to a first axis (B) defining the axis of symmetry of the tool; wherein the creator tool is provided with an annular radial containment element configured to delimit a continuous wall which closes off respective radially outer ends of the radial spaces.
Claims20
A method of forming a front toothing on an inner ring of a wheel hub by plastic deformation, the method comprising:
- impressing a creator tool on an upset annular collar of the inner ring of the wheel hub formed on a first end of the inner ring of the wheel hub and comprising a first radial profile, wherein the creator tool comprises:
- a complimentary toothing arranged annularly about an axis of symmetry of the creator tool and comprising a plurality of radial teeth and a plurality of radial spaces between respective pairs of the radial teeth;
- and
- an annular radial containment element arranged radially outside of the complementary toothing,
- wherein impressing the creator tool comprises:
- rotating the creator tool orbitally about an axis of symmetry of the wheel hub;
- and
- pushing against the upset annular collar while rotating the creator tool orbitally to imprint, in sequence, the plurality of radial teeth of the complimentary toothing on the upset annular collar.
A method of forming by plastic deformation a front toothing on an inner ring of a wheel hub, the method comprising:
- impressing a unitary creator tool on an upset annular collar of the inner ring of the wheel hub formed on a first end of the inner ring of the wheel hub and comprising a first radial profile, wherein the unitary creator tool comprises:
- a solid central portion;
- a first complimentary toothing positioned annularly about the solid central portion, the first complimentary toothing comprising:
- a plurality of radially extending teeth, wherein each tooth of the plurality of radially extending teeth comprises a ridge at a top end of the tooth defining a rounded radial profile;
- and
- a plurality of radially extending spaces separating the plurality of radially extending teeth respectively, wherein the plurality of radially extending teeth and the plurality of radially extending spaces arranged annularly about the axis of symmetry (B);
- and
- an annular radial containment element radially disposed on an outside of the plurality of radially extending teeth and defining a continuous wall, the continuous wall closing a radially outer end of each of the plurality of radially extending spaces,
- wherein impressing the creator tool comprises:
- rotating the unitary creator tool orbitally about an axis of symmetry of the wheel hub;
- and
- pushing against the upset annular collar while rotating the unitary creator tool orbitally to imprint, in sequence, the plurality of radial teeth of the complimentary toothing on the upset annular collar.
A method of forming by plastic deformation a front toothing on an inner ring of a wheel hub, the method comprising:
- impressing a unitary creator tool on an upset annular collar of the inner ring of the wheel hub formed on a first end of the inner ring of the wheel hub and comprising a first radial profile,
- wherein the unitary creator tool comprises:
- a solid central portion;
- a first complimentary toothing positioned annularly about the solid central portion, the first complimentary toothing comprising:
- a plurality of radially extending teeth, wherein each tooth of the plurality of radially extending teeth comprises a ridge at a top end of the tooth defining a rounded radial profile;
- and
- a plurality of radially extending spaces separating the plurality of radially extending teeth respectively, wherein the plurality of radially extending teeth and the plurality of radially extending spaces arranged annularly about the axis of symmetry (B);
- and
- an annular radial containment element radially disposed on an outside of the plurality of radially extending teeth and configured to define a continuous wall, the continuous wall closing a radially outer end of each of the plurality of radially extending spaces;
- wherein, at an axially outermost end of the unitary creator tool, an axially outermost end surface of the annular radial containment element extends axially beyond an axially outermost end surface of the solid central portion,
- wherein impressing the creator tool comprises:
- rotating the unitary creator tool orbitally about an axis of symmetry of the wheel hub;
- and
- pushing against the upset annular collar while rotating the unitary creator tool orbitally to imprint, in sequence, the plurality of radial teeth of the complimentary toothing on the upset annular collar.
Dependencies are inferred from the claim text.