Tool feeding method in gear manufacturing processes

Details Tool feeding method in gear manufacturing processes Tool feeding method in gear manufacturing processes

B - Operations, Transporting

23

F

B23F 9/10 (2006.01)

Patent

CA 2158045

Disclosed herein is a process for feeding a tool (2) relative to a workpiece (12) in a machining process such as a process for forming level and hypoid gears. The method comprises feeding the tool (2) from an initial contact position (12i) with the workpiece to a full depth position (12f) in the workpiece along a feedpath at least a portion of which is defined by a feed vector (F) having at least two feed vector components lying in an axial plane. The first feed vector component (G') being substantially in the direction of the axis (G) of a theoretical generating gear and the second feed vector component (H) being substantially in a direction perpendicular to the generating gear axis (G). The feed vector (F) may include a third feed vector component (N') lying in a normal plane. With this feedpath undesirable tool shifting and workpiece spiral angle changes are significantly reduced.

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