Spreading device for lamination stacks

Details Spreading device for lamination stacks Spreading device for lamination stacks

1979-07-12

1982-02-23

Paperner, Leslie J.

Material or article handling

Apparatus for stringing articles on a support in abutting...

29738, 294 94, 414 28, 414908, B65H 910

Patent

active

043166920

ABSTRACT:
A spreading device for use in quantity production of lamination stacks for electric machines has sector pieces, which fit into the bore hole of the lamination stack and are placed on a spreading mandrel. The mandrel can be moved axially by a hydraulic drive. The end faces of the sector pieces are beveled on their insides and rest against a first conical surface connected to the spreading mandrel and against a second conical surface opposite to and facing the former. To achieve uniform alignment of the lamination stack over its full length, the second conical surface is displaced by a hydraulic drive and the two conical surfaces are moved towards each other by the same amount.

REFERENCES:
patent: 3513527 (1970-05-01), Hoy
patent: 3758146 (1973-09-01), Kaercher, Jr.
patent: 3829147 (1974-08-01), Ryswick
patent: 3926320 (1975-12-01), Shively et al.
Publication, "Vorrichtungs--bau" (Equipment Construction), by Bussin, second edition, 1920, published by Krayn in Berlin, p. 106, Fig. 133.

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