Eccentric boring tool and method

Details Eccentric boring tool and method Eccentric boring tool and method

B - Operations, Transporting

23

B

77/9

B23B 39/00 (2006.01) B23B 41/00 (2006.01) B23C 3/26 (2006.01)

Patent

CA 1146382

ECCENTRIC BORING TOOL AND METHOD ABSTRACT OF THE DISCLOSURE An eccentric boring tool and method of forming a bore off center from the central axis of a workpiece are disclosed. The tool includes a tool holder nonrotatably supported relative to a workpiece and an outer housing supported for rotation with the workpiece and rotation relative to the tool holder. An eccentric supported within the housing mounts a bearing which in turn supports the tool holder. The eccentric rotates with the housing causing the longitudinal axis of the tool holder to orbit about the longitudinal axis of the workpiece. An end mill cutting tool is supported in the tool holder. A plurality of discs are supported in the forward end of the housing. The discs engage the workpiece, lock the housing to the workpiece and cause the housing to rotate at the same speed as the work- piece. -1-

354619

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