Patent ID: 6722826
Filing Date: 2004-04-20
Classification: B23C,Y10S,Y10T

Abstract:
An internal cavity cutting tool assembly comprising:a tool hanger assembly including a tool hanger body, a bearing assembly, and bearing retainer means, the tool hanger body having an elongated leg with a first surface and a second surface, the elongated leg having a though-bore disposed through the first and second surfaces, the though-bore further having a bearing seat, the bearing seat adapted to receive the bearing assembly, the tool hanger body adapted to receive the bearing retainer means thereby retaining the bearing assembly at least substantially within the through-bore of the tool hanger body; a tool body assembly including a plurality of cutting inserts, a first tool body portion and a second tool body portion, the first and the second tool body portions each having a bearing support surface, a splined bore for receiving a splined arbor, a cutting face having a plurality of insert pockets each being arranged for receiving and supporting one of the plurality of cutting inserts, the bearing support surface of the first tool body portion adapted to be received by the end of the though-bore in the first surface of the tool hanger body and the bearing support surface of the second tool body portion adapted to be received by the end of the through-bore in the second surface of the tool hanger body, such that the bearing support surfaces oppose each other within the through-bore of the tool hanger body; and a splined arbor drive assembly having a splined arbor drive shaft and an arbor support, the splined arbor drive shaft being constructed to be operatively inserted through openings in a workpiece and through the splined bore of the tool body portions and into the arbor support, the splined arbor drive shaft adapted to be driven so as to operatively rotate the splined arbor drive assembly and the tool body assembly, thereby sweeping the cutting inserts disposed in the tool body portions against the portions of the workpiece to be cut, and further including means for preventing rotation of the tool body portions when the splined arbor drive assembly is disengaged from the tool body portions.