Drilling system and modular drilling head for deep hole drilling
AssigneeAllied Machine & Engineering Corp.
InventorsSalvatore D. Deluca, Lucas S. Dummermuth, Michael D. Dreher
Life of this patent
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Abstract
A drilling system and methods provide stability and cutting performance to produce holes having desired straightness and other characteristics. The system may include a cutting head provided with a central cutting system and first and second side cutting inserts. The tool provides a major diameter with the OD cutting margins on the replaceable side inserts, as well as possibly cutting margins on the center cutting member. Adjustment mechanisms may be provided to adjust the center cutting member and/side cutting inserts.
Claims19
A drilling system comprising a generally cylindrical body member having an outer surface, a replaceable cutting head mounted to the front end of the body member having a central cutting system with first and second cutting edges extending from the rotational axis of the cutting head, and first and second side cutting inserts disposed outwardly from the central cutting system, the side cutting inserts each having a cutting edge extending from adjacent the first and second cutting edges of the central cutting system to cut the major diameter of a hole, wherein the side cutting inserts are indexable and have first and second opposed cutting edges and first and second sides extending between the first and second cutting edges forming first and second margins, with one cutting edge and one margin exposed when the side inserts are mounted in pockets formed adjacent the central cutting system in the cutting head, each exposed margin having a length that extends beyond the entire outer edge of the pocket, each having a parallel margin plane that engages the hole on entry of each side cutting insert, during the drilling cut cycle, and during the breakout on through hole applications or an interrupted cut.
A drilling system comprising a generally cylindrical body member, a replaceable cutting head mounted to the front end of the body member having a central cutting insert with first and second cutting edges extending from the rotational axis of the cutting head, and first and second side cutting inserts, each having a cutting edge extending from adjacent the central insert to cut the major diameter of a hole, an adjustment mechanism associated with the central cutting system to adjust the centerline position of the cutting action of the first and second cutting edges, and an adjustment mechanism associated with each of the first and second side cutting inserts to adjust the diameter of the cutting performed by the side cutting inserts.
Dependencies are inferred from the claim text.