Methods and apparatus for generating control data for forming a tooth of a spur gear toothing by milling a workpiece at a machine tool

A method for generating control data for manufacturing a workpiece having a gear toothing, comprising:

• providing toothing information data,
• calculating a model of the workpiece based on the provided toothing information data, comprising calculating a provided tooth flank geometry based on the provided toothing information data, and
• generating control data for manufacturing the workpiece, comprising generating control data for forming a tooth of a spur gear toothing on the workpiece.

An apparatus for generating control data for forming a tooth of a spur gear toothing which has an intended widthwise crowning by milling a workpiece at a numerically controlled machine tool having at least 5 axes, at a universal machine tool, by successively moving a milling cutter of the machine tool along a plurality of machining paths based on the generated control data, the apparatus comprising:

• first input means for providing a tooth flank geometry of at least one tooth flank of the tooth of the spur gear toothing,
• second input means for determining parameters for specifying a change of the provided tooth flank geometry according to the intended widthwise crowing of the tooth, and
• control data generating means for generating control data based on a tooth flank geometry which is changed based on the determined parameters, wherein the changed tooth flank geometry corresponds to a tooth flank geometry of the tooth having the intended widthwise crowing.

An apparatus for generating control data for manufacturing a workpiece having a gear toothing, comprising:

• input means for providing toothing information data,
• model calculation means for calculating a model of the workpiece on based on the provided toothing information data, comprising calculating a provided tooth flank geometry based on the provided toothing information data, and
• control data generating means for generating control data for manufacturing the workpiece, comprising generating control data for forming a tooth of a spur gear toothing on the workpiece.