Fixture for holding a tubular workpiece during the machining the

Details Fixture for holding a tubular workpiece during the machining the Fixture for holding a tubular workpiece during the machining the

1975-04-23

1976-11-16

Smith, Al Lawrence

Work holders

With fluid means

Cylinder-piston means directly moves jaw

269257, 269287, B23Q 306

Patent

active

039919900

ABSTRACT:
A fixture is disclosed for holding a tubular workpiece during the machining thereof. The fixture includes a base plate that is adapted to be placed over a mandrel that supports the workpiece. A pair of spaced apart blocks are slidably mounted on the base plate and each includes a plurality of roller means that depend downwardly therefrom. Guide means are provided for the blocks which are displaced towards the axis of the workpiece by means of a pair of opposed air cylinders so that the roller means engage the periphery of the workpiece and center the workpiece with respect to the axis of the mandrel. The workpiece may then be machined such as by forming external threads thereon.

REFERENCES:
patent: 2140682 (1938-12-01), Strauss
patent: 2373163 (1945-04-01), Cailloux et al.
patent: 2679177 (1954-05-01), Gepfert
patent: 2732745 (1956-01-01), Behr
patent: 2945523 (1960-07-01), Jenkins
patent: 3385592 (1968-05-01), Hasell et al.
patent: 3386726 (1968-06-01), Lorenz
patent: 3834215 (1974-09-01), Lemley

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