US 12,226,866 B2
Pneumatic drill system and foreign object debris collection drill attachment
Todd B. Jaramillo, Wichita, KS (US); Matthew R. Schroeder, Wichita, KS (US); Chelsea Sewell, Wichita, KS (US); Alexis Winkle, Wichita, KS (US); Adrian Schrage, Wichita, KS (US); John Adam Price, Wichita, KS (US); and John Robert Dye, III, Wichita, KS (US)
Assigned to Spirit AeroSystems, Inc., Wichita, KS (US)
Filed by Spirit AeroSystems, Inc, Wichita, KS (US)
Filed on Mar. 23, 2023, as Appl. No. 18/125,587.
Prior Publication US 2024/0316711 A1, Sep. 26, 2024
Int. Cl. B23Q 11/00 (2006.01)
CPC B23Q 11/0046 (2013.01) [B23Q 11/0071 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A foreign object debris (FOD) collection drill attachment comprising:
a drill guide bushing holder comprising:
an inlet channel having a first cross-sectional area,
an outlet channel, having a second cross-sectional area, wherein the first cross-sectional area is smaller than the second cross-sectional area, and
a holder center channel having a first opening, a second opening, a first region, and a second region, wherein the first region extends from the first opening to the second region and the second region extends from the first region to the second opening, wherein the inlet channel and the outlet channel each open into the second region of the holder center channel;
an air supply line having a first end fluidly coupled with the inlet channel and a second end fluidly couplable to a pneumatic pressure source for operation of the drill, such that pneumatic pressure for actuating the drill bit is also passed into the inlet channel via the air supply line; and
a chip evacuation line fluidly coupled with the outlet channel,
wherein the drill guide bushing holder is shaped and arranged to generate a Venturi effect in the second region of the holder center channel between the inlet channel and the outlet channel when air from the pneumatic pressure source is imparted through the air supply line and wherein the Venturi effect in the second region of the holder center channel between the inlet channel and the outlet channel is configured to pull FOD away from the drill bit in the second region of the holder center channel and through the chip evacuation line without a vacuum line connecting the second region of the holder center channel to a source of vacuum pressure external to the second region of the holder center channel.