Metal deforming – By three or more coacting relatively movable tools – Concurrently actuated tools
Patent
1984-08-28
1986-04-01
Bray, W. D.
Metal deforming
By three or more coacting relatively movable tools
Concurrently actuated tools
29237, 2924352, 72451, B21D 4100
Patent
active
045789827
ABSTRACT:
A radial press for workpieces (26) having a cylindrical outer surface, comprises toggle levers (10) movable in a radial plane and having inner and outer ends. The radial press has a press casing (6) comprising at least two parts (18, 19) and having radial guides (5) and guide bodies (4) for a plurality of dies disposed about the axis of the outer surface of the workpiece and driven by toggle levers (10). The press casing has a compression ring (8) guided concentrically to an axis (A--A) with outer pivot points (9) for the toggle levers. A circumferential rim (34) is provided on the casing parts on both sides, each rim overlapping the compression ring (8), and the compression ring (8) being supported thereon through rotational guides (20). The casing parts form one unit clamped together by bolts passing through both casing parts. Between the rotational guides (20) and the compression ring (8) there is present a radial clearance of such small magnitude that a polygonal deformation of the compression ring (8) in the pressing process is as small as possible.
REFERENCES:
patent: 684216 (1901-10-01), Cadman
patent: 4306442 (1981-12-01), Schrock
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