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Reference system on milling machines, 1 f undamentals – HEIDENHAIN iTNC 530 (340 49x-04) User Manual

Page 111

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HEIDENHAIN iTNC 530

111

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