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US 7,637,134 B2Granted
Flanging with a leading and following flanging die
AssigneeEDAG GmbH & Co. KGaA
InventorsMarc Burzlaff, Stefan Reith, Manfred Hohmann
Life of this patent
Estimating the term…
Abstract
A flanging device for beading a flanging web of a component part around a flanging edge. The flanging device includes a tool head; a first flanging die and a second flanging die which the tool head simultaneously bears, situated in a processing position, and one of which is arranged following the other in a processing direction.
Claims25
A flanging device for beading a flanging web of a component part around a flanging edge, said flanging device comprising:
- a) a tool head;
- b) a first flanging die and a second flanging die which the tool head bears, simultaneously situated in a processing position, and one of which is arranged following the other in a processing direction;
- c) a bearing unit which mounts the first flanging die and is mounted by the tool head such that the bearing unit can be moved in a transverse direction relative to the processing direction;
- and
- d) an actuating means which the tool head bears, wherein the bearing unit is chargeable, by means of the actuating means, with a force which acts in the transverse direction;
- wherein the first flanging die can be advanced by means of the actuating means in the transverse direction towards the flanging web far enough that the first flanging die protrudes beyond the second flanging die and can be moved back in the transverse direction far enough from the flanging web that it is short of the second flanging die.
3 more elements
A method for beading a flanging web of a component part around a flanging edge, comprising:
- a) moving a tool head, which bears a leading flanging die and a following flanging die, along the flanging edge in a processing run, wherein the tool head bears one of the flanging dies such that it can be moved transverse to the flanging edge relative to the other flanging die;
- b) beading the flanging web with the leading flanging die;
- and
- c) further beading the flanging web with the following flanging die in the same processing run;
- wherein a corner region of the flanging edge is passed over repeatedly, by reversing the processing direction, and in a first pass, the following flanging die is lifted off the flanging web and in a subsequent, second pass, the leading flanging die is lifted off the flanging web, while in each pass, the other flanging die in each case beads the flanging web.
2 more elements
Dependencies are inferred from the claim text.