Method for gear shaping a toothing, control program, and gear shaping machine for carrying out the method
AssigneeGleason-Pfauter Maschinenfabrik GmbH
InventorKurt Kleinbach
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Abstract
The invention relates to a method for gear shaping a toothing (55) with a specified normal pitch (mn), angle of action (α), and optionally a helix angle (β) on a workpiece (50), wherein a shaper cutter (40) moving in stroke cycles with a specified stroke length (h) removes material from the workpiece in multiple working strokes in a rolling machining engagement, thereby forming contact tracks, wherein the contact track on the partial circle in the stroke center runs at an angle (γ) to the flank line (57) at least for a first plurality of strokes, the cotangent of said angle being smaller than or equal to the product of a constant of 40, preferably 33, in particular 25, and a geometry/process factor.
Claims12
Method for gear shaping a toothing with a specified normal pitch (mn), angle of action (α), and a helix angle (β) on a workpiece, wherein a shaper cutter moving in stroke cycles with a specified stroke length (h) removes material from the workpiece in multiple working strokes with the shaper cutter in a rolling machining engagement with the workpiece, thereby forming contact tracks,
- wherein each of the contact tracks for at least a first plurality of the working strokes has a respective longitudinal direction that runs at an angle γ to a flank line of the toothing, the cotangent of said angle γ being smaller than or equal to the product of constants K1 and K2, wherein K1 is in the range of 19.4 to 40, and K2 is a geometry-process factor of K2=Kh·Km·Kα·Kβ with Kh=h [mm]/20, Km=3/mn [mm], Kα=sin 20°/sin α and Kβ=cos β.
Dependencies are inferred from the claim text.