HEIDENHAIN iTNC 530 (340 49x-01) - Manual (Page 81)

HEIDENHAIN iTNC 530 81
4.1 F
undamentals
Reference system on milling machines
When using a milling machine, you orient tool movements to the
Cartesian coordinate system. The illustration at right shows how the
Cartesian coordinate system describes the machine axes. The “right-
hand rule” is illustrated for remembering the three axis directions: the
middle finger points in the positive direction of the tool axis from the
workpiece toward the tool (the Z axis), the thumb points in the positive
X direction, and the index finger in the positive Y direction.
The iTNC 530 can control up to 9 axes. The axes U, V and W are
secondary linear axes parallel to the main axes X, Y and Z, respectively.
Rotary axes are designated as A, B and C. The illustration at lower right
shows the assignment of secondary axes and rotary axes to the main
axes.
+X
+Y
+Z
+X
+Z +Y
W+
C+
B+
V+ A+
U+
Y
X
Z