Method and apparatus for tap hole reaming
AssigneeWilliam M. Bailey Company
InventorLawrence Skendrovic
Life of this patent
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Abstract
A pouring ladle is mounted on a carriage which is movable along a track by a motor drive coupled thereto through an overrunning clutch. Movement of the carriage along the track is interrupted at a predetermined position to align the tap hole of the ladle with a rotating reaming tool. The reaming tool is axially advanced into the tap hole for reaming and then retracted and the carriage is released for continued movement along the track. The reaming tool is a hollow tubular body having a longitudinal relief slot penetrating the side thereof and an annularly shaped reaming head is concentrically and removably secured to the forward end of the body and air is fed forward under pressure into the rearward hollow end of the body for cooling and clearing of reamed cuttings.
Claims12
A tap hole reamer including a support frame with a drifter drill motor having the rearward end of an elongated hole reamer drivingly coupled thereto for reaming rotations on its longitudinal axis and said motor mounted to a carriage movable along said frame by air cylinder means to advance and retract said reamer, the improvement comprising, said hole reamer consisting of a hollow tubular body having a longitudinal relief slot penetrating the side thereof and an annularly shaped reaming head concentrically and removably secured to the forward end of said body, and means to feed air forward under pressure into the rearward hollow end of said body.
A method of reaming a ladle tap hole comprising the steps of mounting a ladle on a carriage movable along a track, moving said carriage along said track with a motor drive coupled thereto through overrunning clutch means, interrupting the movement of said carriage along said track at a predetermined position with stop means and thereby axially aligning said tap hole with a rotating reaming tool, axially advancing said reaming tool into said tap hole and thereby reaming said tap hole, retracting said reaming tool from said tap hole, and releasing said stop means to permit continued movement of said carriage along said track.
Dependencies are inferred from the claim text.