HEIDENHAIN iTNC 530 (340 49x-03) ISO programming - Manual (Page 105)

HEIDENHAIN iTNC 530 105
4.1 F
u
ndam
e
n
tals
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
at right illustrates the +right-hand rule+ for remembering the three
axis directions: the middle finger is pointing in the positive direction of
the tool axis from the workpiece toward the tool (the Z axis), the
thumb is pointing 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