Flaring tool for hollow workpieces

Details Flaring tool for hollow workpieces Flaring tool for hollow workpieces

1992-01-16

1993-09-14

Larson, Lowell A.

Metal deforming

By relatively receding work-engaging tool-faces

Embodying three or more tools

72482, B21D 3920

Patent

active

052438457

ABSTRACT:
A flaring tool (1) for hollow workpieces having a basic tool body (2) with an expanding mandrel (13), which can be displaced by means of a drive. A supporting device (5) concentrically surrounding the expanding mandrel with an exchangeable expansion head (6) which has radially movable expanding jaws (14) located in a screw cap (16). The supporting device (5) is placed in the basic tool body (2) and can be moved longitudinally by means of a threaded extension (8) in the direction of the (A--A) axis of the expanding mandrel (13), and has an annular flange (11) which serves as a stop (10) for the expansion head. The supporting device (5) is fixed opposite the basic tool body (2) by means of a stopping device. In order to achieve a simple, reliable and reproducible set-up the supporting device (5) has in its annular flange (11), in a circle placed concentrically to the (A--A) axis, index boreholes for an index pin (29), located in the basic tool body (2).

REFERENCES:
patent: 1238012 (1917-08-01), Hall
patent: 1717668 (1929-06-01), Dhaenens
patent: 4735078 (1988-04-01), Wesebaum

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