Electric, 30,000 RPM Shave Spindle for C Frame Riveter and high Performance Compact Aerospace Drill

摘要

Two spindles are discussed in this paper. The first spindle was installed on nine C-frame riveters on the 7377/757 wing line at the Boeing Renton facility. Due to discontinuing the use of Freon coolant and cutting fluid, the C-frame riveters had difficulty shaving 2034 ice box rivets with the existing 6000 RPM hydraulic spindles. The solution was to install electric 30,000 RPM shave Spindles inside the existing 76.2 mm (3 in.) diameter Hydraulic cylinder envelope. The new spindle is capable Of 4 Nm (35 in. lbs.) of torque at full speed and 110 kgf (250 lbs.) of thrust.