Inclined Axis Programming (G5, G7) - Siemens SINUMERIK 840D sl Programming Manual

Transformations
6.8 Kinematic transformation
6.8.4

Inclined axis programming (G5, G7)

Function
The G functions G7 and G5 are used to simplify the programming of oblique plunge-cutting
at grinding machines with "inclined axis" (TRAANG), so that when plunge cutting, only the
inclined axis is traversed.
Only the required end position of the plunge-cutting motion has to be programmed in X and
Z. For G7, starting from the actual position of the X axis, the NC calculates and approaches
the programmed end position and angle α of the inclined axis.
The starting position is calculated from the point where the two straight lines intersect:
● Straight line parallel to the Z axis, at a distance from the actual position of the X axis
● Straight line parallel to the inclined axis through the programmed end position
With the subsequent G5, the inclined axis is traversed to the programmed end position.
References
Function Manual, Extended Functions; Chapter "M1 Kinematic Transformation" > "Oblique
angle transformation TRAANG"
Syntax
G7 <Endpos_X> <Endpos_Z>
G5 <Endos_X>
Meaning
:
G7
:
G5
<Endpos_X>
<Endpos_Z>
360
:
:
Calculate the starting position for the oblique plunge-
cutting and approach
Traverse the inclined axis to the programmed end
position
X axis end position
End position of the Z axis
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
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