Riveting apparatus

B - Operations – Transporting – 21 – J

Patent

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Details

B21J 15/36 (2006.01) B21J 15/10 (2006.01)

Patent

CA 2450765

A riveting yoke assembly (11) comprises a yoke (30), a force applying mechanism (22) and a rivet forming device (34,36). The yoke has a first end (38), a second end (40), and a middle section (42) coupled between the first and second ends (38,40). An opening (44) is formed through the yoke between the first and second ends. The force applying mechanism (22) is coupled to the first end (38) of the yoke (30). The lower rivet forming device (36) is removably coupled to the second end (40) of the yoke. The lower rivet forming device (36) has a base end (46) attached to the second end (40) of the yoke (30) and a forming end (48) with a recess (50) to form rivets (17). The recess (50) has a concave, interior surface (52) having an annular step (54) positioned between a top edge (56) of the interior surface (52) and a bottom- most point (58) of the interior surface (52) in order to properly align the rivet (17).

Ensemble arceau de rivetage (11) qui comporte un arceau (30), un mécanisme d'application de force (22) et un dispositif de formation (34, 36) de rivets. L'arceau possède une première extrémité (38), une seconde extrémité (40) et une partie médiane (42) raccordant les première et seconde extrémités (38, 40). Une ouverture (44) est formée dans l'arceau entre les première et seconde extrémités. Le mécanisme d'application de force (22) est couplé à la première extrémité (38) de l'arceau (30). Le dispositif inférieur de formation (36) de rivets est couplé amovible à la seconde extrémité (40) de l'arceau. Le dispositif inférieur de formation (36) de rivets possède une extrémité de base (46) fixée à la seconde extrémité (40) de l'arceau (30) et une extrémité de formage (48) dotée d'un évidement (50) pour former des rivets (17). L'évidement (50) possède une surface interne concave (52) possédant un épaulement annulaire (54) situé entre un bord supérieur (56) de la surface interne (52) et un point inférieur (58) se trouvant au niveau le plus bas de la surface interne (52), ce qui permet d'aligner correctement le rivet (17).

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