Air-expanded mandrel having means to equalize expansion to obtai

Details Air-expanded mandrel having means to equalize expansion to obtai Air-expanded mandrel having means to equalize expansion to obtai

1978-12-20

1980-10-21

Weidenfeld, Gil

Chucks or sockets

Expanding

Collet type

279 4, 279 66, 242 72B, B23B 3140

Patent

active

042290147

ABSTRACT:
A fluid actuated expanding mandrel or internal chuck is provided with means including very stiff springs to cause the expanding members to move outwardly a substantially equal amount, whereby a roll or workpiece is concentrically mounted, despite looseness between the bore of the roll or workpiece and the mandrel or internal chuck. A correspondingly inverted arrangement affords concentric chucking on the outer diameter of solid workpieces.

REFERENCES:
patent: 3048345 (1962-08-01), Willard
patent: 3391878 (1968-07-01), Naccara
patent: 3414210 (1968-12-01), Gaudin
patent: 3863857 (1975-02-01), Smith

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