Portable align boring machine

Details Portable align boring machine Portable align boring machine

1987-12-17

1989-07-25

Arnold, Bruce Y.

Cutting by use of rotating axially moving tool

With work-engaging structure other than tool or tool-support

408708, 408709, B23B 3900, B23B 4700, B23B 4900

Patent

active

048507563

ABSTRACT:
A self-centering and aligning attachment assembly for attaching a portable align boring machine to a workpiece or associated support for machining a bore in the workpiece includes first and second attachment sub-assemblies. The a first attachment sub-assembly has a first tubular member through which the boring bar can pass and which is securable to the boring machine. The second attachment sub-assembly has a second tubular member through which the boring bar can pass, and which is securable to the workpiece or associated support with an inner bearing member in alignment with the bore in the workpiece to be machined. A collar member of the first attachment sub-assembly is securable to the second tubular member of the second attachment sub-assembly to enable the boring machine with the first attachment sub-assembly secured thereto to be secured to the second attachment sub-assembly after the second attachment sub-assembly has been secured to the workpiece or associated support and aligned with the bore in the workpiece, an outer bearing member of the first attachment sub-assembly and a co-operating inner bearing member of the second attachment sub-assembly being self-centering.

REFERENCES:
patent: 4652186 (1987-03-01), Sverdlin

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