Siemens sinumerik 840D sl Function Manual page 383

4.3 Electronic gear for gear hobbing
4.3.1 Example of linear couplings
Use of axes
The following diagram shows the configuration of a typical gear hobbing machine. The
machine comprises five numerically closed loop controlled axes and an open loop controlled
main spindle. These are:
• The rotary motion of the workpiece table (C) and hobbing cutter (B).
• The axial axis (Z) for producing the feed motion over the entire workpiece width.
• The tangential axis (Y) for moving the hobbing cutter along its axis.
• The radial axis (X) for infeeding the cutter to depth of tooth.
• The cutter swivel axis (A) for setting the hobbing cutter in relation to the workpiece as a
Figure 4-1
The functional interrelationships on the gear hobbing machine are as follows:
Special functions: Axis Couplings and ESR (M3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0
function of cutter lead angle and angle of inclination of tooth.
Definition of axes on a gear hobbing machine (example)
4.3 Electronic gear for gear hobbing
Examples
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