| CPC B21D 53/10 (2013.01) [F16C 19/183 (2013.01); F16C 2326/02 (2013.01)] | 8 Claims |
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1. An equipment for forming a front toothing having a plurality of radial teeth on an inner ring of a wheel hub, wherein the inner ring is provided at a first end with an annular collar having a predetermined radial profile, the equipment comprising:
a first set of a plurality of first knives having a plurality of first forming ends with a first circumferential profile corresponding in reverse to a profile of a plurality of ridges of the front toothing, the first knives configured to be impressed against the annular collar on the same side as the plurality of first forming ends to form on the annular collar a plurality of rounded radial reliefs and a plurality of radial imprints alternating circumferentially and separating each of the plurality of radial reliefs; and
a second set of a plurality of second knives having a plurality of second forming ends with a second circumferential profile corresponding in reverse to a plurality of respective opposite flanks of the radial teeth of the front toothing, the second knives configured to be impressed against the annular collar on the same side as the plurality of second forming ends after the first knives and inside the radial imprints,
wherein the first knives are arranged annularly and symmetrically about an axis of symmetry of the annular collar and are guided axially, slidably, parallel to the axis of symmetry of the annular collar, wherein the first knives are configured to be axially and sequentially impressed on the annular collar by means of a first orbital forming head; and
wherein the second knives are arranged annularly and symmetrically about the axis of symmetry of the annular collar and are guided axially, slidably, and parallel to the axis of symmetry of the annular collar, wherein the second knives are configured to be axially and sequentially impressed on the annular collar by means of a second orbital forming head.
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