Tool-ejecting drawbar assembly

Abstract

A tool-ejecting drawbar assembly for a milling machine is provided. The drawbar assembly includes a drawbar having a machining interface, a tooling interface, and a shoulder disposed between the machining interface and the tooling interface. The machining interface engages a milling machine in operation, and an extraction tool during tool-ejection. The tooling interface mounts a tool within a spindle taper of the milling machine for use in machining operations. The collar is rigidly secured to a retaining nut of the milling machine and includes an aperture that permits passage of the machining interface while interferingly engaging the shoulder. To self-eject a tool the assembly is retracted using the extraction tool such that the collar engages the shoulder forcing the tool from the spindle taper.

Dependencies are inferred from the claim text.