Siemens SINUMERIK 840D sl Function Manual page 742

Punching and Nibbling (N4)
10.5 Rotatable tool
Example: Circular interpolation
In circular interpolation mode, particularly when path segmentation is active, the tool axes
rotate along a path tangentially aligned to the programmed path axes in each sub-block.
Programming example:
:
:
N2 TANG (C, X, Y, 1, "B")
N5 G0 F60 X10 Y10
N8 TRAILON (C1, C, 1)
N9 TANGON (C, -90)
N10 G02 X30 Y30 I20 J0 SPN=2 PON
N15 G0 X70 Y10 SPOF
N17 TANGON (C, 90)
N20 G03 X35,86 Y24,14 CR=20 SPP=16 SON
N25 G0 X74,14 Y35,86 C0 PON
N27 TANGON (C, 0)
N30 G03 X40 Y50 I-14,14 J14,14 SPN=5 SON
N35 G0 X30 Y65 C90 SPOF
N40 G91 X-10 Y-25 C180
N43 TANGOF
N45 G90 G02 Y60 I0 J10 SPP=2 PON
N50 SPOF
N55 TRAILOF (C1, C)
N60 M2
742
; Define master and slave axes, C
is slave axis for X and Y in the
base coordinate system
; Start position
; Activate coupled motion of
rotatable tool axes C/C1 for
punch and die.
; Activate tangential control with
offset 270°
; Circular interpolation with path
segmentation, 2 strokes are
executed with 270° offset angle
and tangential alignment along
circular path
; Position
; Activate tangential control with
offset 90°
; Circular interpolation, path
segmentation, 4 strokes are
executed with 90° offset angle
and tangential alignment along
circular path
; Rotation of tool axes to 0° ,
stroke
; Activate tangential control with
offset 0°
; Circular interpolation, path
segmentation, 5 strokes with 0°
offset angle and tangential
alignment along circular path
; Position without active
tangential control
; Positioning, C axis rotates to
270°
; Deactivate tangential control
; Circular interpolation, path
segmentation, two strokes without
tangential control where C=270°
; Punching OFF
; Deactivate coupled motion of
rotatable tool axes C/C1
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Extended Functions