Oblique Plunge-Cutting On Grinding Machines (G5, G7) - Siemens SINUMERIK 840D sl Function Manual

M1: Kinematic transformation
7.3 TRAANG oblique angle transformation (option)
<α>:
<n>:
Note
A TRAANG transformation active in the channel is switched-off with:
● Deactivate transformation: TRAFOOF
● Activation of another transformation: E.g. TRACYL, TRANSMIT, TRAORI
Example
Program code
...
N20 TRAANG(45)
...
7.3.3.2

Oblique plunge-cutting on grinding machines (G5, G7)

The G commands G7 and G5 are used to simplify programming of oblique plunge-cutting on
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.
Syntax
G7 <Endpos_X> <Endpos_Z>
G5 <Endpos_X>
438
Angle of the inclined axis (optional)
Range of values:
If the parameter is not specified, then the parameterized basic position
applies:
$MC_TRAANG_ANGLE_<n>
With <n> = TRAANG data set number
TRAANG data set number (optional)
Range of values:
Comment
; Activate TRAANG with the first TRAANG data set and angle 45°
-90° < α < + 90°
1, 2
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions