Steady rest with internal centerline adjustment

Details Steady rest with internal centerline adjustment Steady rest with internal centerline adjustment

1992-02-04

1993-08-24

Kisliuk, Bruce M.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

82157, 82164, B24B 4106

Patent

active

052377806

ABSTRACT:
A centering and supporting apparatus is disclosed for use as a true centering steady rest for rotatably supporting a cylindrical workpiece during a machining or grinding operation. The apparatus has an internal centerline adjustment mechanism for adjusting the steady rest so as to support the workpiece at its dynamic working centerline. At least one, or a pair of support arms are slidably mounted on an operator body in a housing. Said one or pair of support arms each carries a side workpiece contact member, and the operator body carries a center workpiece contact member, and each workpiece contact member is engagable with the perimeter of the workpiece. The operator body is moved by a stroking means to urge the center workpiece to support a workpiece. The support arms are urged to support the workpiece by the action of cam followers carried by the support arms, and which cam followers are each engaged with a camming contour disposed in a guide plate that is displaceable within the housing by the internal centerline adjustment mechanism. The internal centerline adjustment mechanism allows either one or a pair of guide plates to be shifted within the steady rest to accommodate any deviation which the dynamic working centerline imposes from the static centerline originally established prior to a machining or grinding operation.

REFERENCES:
patent: 3234829 (1966-02-01), Dinsmore
patent: 4288945 (1981-09-01), Manekata
patent: 4399639 (1983-08-01), Lessway
patent: 4519279 (1985-05-01), Ruggeri
patent: 4754673 (1988-07-01), Hiestand
patent: 5058468 (1991-10-01), Lessway

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