Cutting by use of rotating axially moving tool – Processes – Bit detachable
Patent
1996-09-10
1998-01-06
Bishop, Steven C.
Cutting by use of rotating axially moving tool
Processes
Bit detachable
408101, 408111, 408137, B23B 4512, B23B 4514
Patent
active
057047391
ABSTRACT:
Holes are drilled into work pieces which are inconvenient to be mounted in a conventional machine shop drill press. Walking of the drill bit is controlled by an alignment guide 40 placed at the surface of the work piece which axially stabilizes the drill bit while it rotates. Downward axial force is applied to the drill bit by a screw action which translates rotational force applied by a wrench into an axial force. The device may be affixed to the work piece by clamping or spot welding. Downward axial force is applied by way of a pair of threadably engaged cylinders 42, 44. The outer cylinder 42 is integral with a plate 32 which is affixed to the work piece. The inner cylinder 44 has a portion 46 where rotational force may be applied. When the inner cylinder 44 is caused to rotate, the rotational force is translated into axial force by the threaded engagement of the inner cylinder 44 with the outer cylinder 42. Downward axial force bears upon the shoulder 94 of the drill bit 98 causing the drill bit to bore into the work piece.
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Bridenstine Sam
Horner Carl
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