Showing papers on "Gear shaping published in 1972"

Gear shaping apparatus with means for lifting cutter wheel relative to the work piece

Abstract: In a gear shaping apparatus, an arrangement for moving a cutter wheel spindle relative to the work piece between a cutting stroke path and either of two return stroke paths on either side of the cutting stroke path. Adjacent a pair of contact surfaces movable with the spindle is a cam rotatable synchronously with the axial spindle movement and mounted on an eccentric shaft which is mounted in the machine frame, such that turning of the eccentric shaft brings the cam to one or the other of the contact surfaces to move the spindle either between the cutting stroke path and one return stroke path or between the cutting stroke path and the other return stroke path, respectively. The cam generally moves the spindle to the cutting stroke path and each of a pair of opposed return means such as for example a spring are made operable to move the spindle to one or the other of the return stroke paths, respectively, to lift the cutter wheel relative to the work piece for the return stroke.