Split back die segment

Details Split back die segment Split back die segment

1983-12-23

1986-03-25

Crane, Daniel C.

Metal deforming

By three or more coacting relatively movable tools

Concurrently actuated tools

29237, B21D 4104, B21D 1910

Patent

active

045774854

ABSTRACT:
An improved die segment for crimp machines in which a plurality of such segments are disposed in a bowl to surround a coupling to be crimped, with crimping being effected by forced movement of the die segments toward a narrowed end of the bowl, typically by a hydraulic ram. Each of the segments is wedge shaped having a cylindrical inner face adapted for engagement with the cylindrical sleeve of the coupling and a relatively large conical outer face matching the shape of the conical bowl and adapted for engagement therewith for positioning the array of die segments and for guiding movement of the die segments radially inwardly. The outer face of each die segment is split into spaced, axially extended, contact surfaces which provide improved alignment and force transmission characteristics.

REFERENCES:
patent: 3417598 (1968-12-01), Valente
patent: 3626450 (1971-12-01), Browne et al.
patent: 4306442 (1981-12-01), Schrock
patent: 4309892 (1982-01-01), Currie

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