Air Chuck Grips Gears
Northfield Precision’s Model 650 sliding-jaw air chuck, with 0.0001" TIR, features quick-change jaws and a hard stop.
Northfield Precision’s Model 650 sliding-jaw air chuck, with 0.0001" TIR, features quick-change jaws and a hard stop. The jaws are held in place by one bolt through a keyhole slot in each jaw pad, and sub-jaws are permanently mounted to the chuck’s master jaws. The custom chuck is designed for gear applications such as gripping interior diameters of output gears.
These vise jaws use protruding, mechanical pins to repeatedly support workpieces either horizontally or at angles. They are said to allow quicker setups than conventional parallels.
The challenge holding tight tolerances for its billet RC helicopter engine components drove this company to develop an innovative fifth-axis tombstone device to complete multiple parts on an HMC in one setup.
As demonstrated at this Cincinnati-area shop, machines that both mill and turn shine brightest when workpieces are massive.