840D/828D SINUMERIK Operate Page 7
B515
B515
Notes
According to the drive tasks planed, controlled electrical drives for NC-
machines are divided into the following:
Feed drives for all axis, e.g. X, Y, Z.
Main spindle drive, e.g. for the milling spindle of a machining center,
the spindle drive of turning machines or a grinding wheel drive.
Auxiliary drive, e.g. for the tool changer or the pallet switcher.
A typical machining center with feed drives, main spindle drive and auxil-
iary drive is shown below.
Operation diagram of the position-regulated axis:
Main spindle drive
Feed drives Auxiliary drive
Section 6
Driving mechanisms/positioning actions
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