Tuyen T Nguyen

US Patent:

20030177877, Sep 25, 2003

Filed:

Mar 21, 2002

Appl. No.:

10/103060

Inventors:

Tuyen Nguyen - Manchester CT, US

International Classification:

B23B023/04

US Classification:

082/150000

Abstract:

A live center for use in a machine tool is provided that includes a center assembly, a shank, and apparatus for attaching the center assembly and the shank together. The shank includes an end surface and a centerline. The center assembly includes a center point, one or more bearings, and a housing. The housing has a cavity and a housing end surface. The one or more bearings and the center point are axially aligned with one another along a centerline, and are mounted within the cavity. The center assembly and the shank are relatively positioned such that at least a portion of the end surface of the shank is in contact with the end surface of the housing. The apparatus for attaching the center assembly to the shank permits relative lateral movement between the center assembly and the shank during set-up, to enable selective misalignment of the centerline of the center assembly and the centerline of the shank. The means for attaching the center assembly to the shank further permits the center assembly and the shank to be fixed relative to one another when the centerline of the center assembly and the centerline of the shank are misaligned.