HEIDENHAIN iTNC 530 (340 49x-04) ISO programming - Manual (Page 109)

HEIDENHAIN iTNC 530 109
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 figure
illustrates the right-hand rule 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