Cycles
9.13 Profile grinding - CYCLE429
Surface grinding
186
Programming and Operating Manual, 11/2012, 6FC5398-5CP10-3BA0
9.13
Profile grinding - CYCLE429
Programming
CYCLE429( N_SITZ, XSTART, ZSTART, YEND, KS, A_LU, A_SR, LUZ, SRZ, N_FR,
A_HEB, FX, KONTUR)
Parameter
Table 9- 9
Parameters of CYCLE429
Parameter
Data type
Meaning
N_SITZ
INT
Seat number
XSTART
REAL
X axis starting position (abs)
ZSTART
REAL
Z axis starting position (abs)
YEND
REAL
Y end position
KS
INT
with structure-borne noise 0 = no 1 = yes
A_LU
REAL
Air grinding allowance (incr.)
A_SR
REAL
Allowance (incr.)
LUZ
REAL
Air grinding feedrate, per stroke
SRZ
REAL
Infeed per stroke
N_FR
REAL
Number of sparking-out strokes
A_HEB
REAL
Retraction amount (incr.)
FX
REAL
Table feedrate
KONTUR
String
Contour name
Function
The profile grinding cycle is called for the purpose of machining a surface with a free
contour.
The entire contour is contained within the contour subroutine.
The cycle merely handles the infeed process and the interrupt keys, which do not have any
effect until the end of the contour is reached.
Both intermediate dressing and interruption are supported.
At the end of each stroke, retraction is performed followed by a return to the starting point.
Machining must be performed using active tool nose radius compensation (G41/G42).
The tool offset is modified by the cycle.
The user has the option of programming both an outward and a return motion in the free
contour. In this case, no retraction amount is required.
The user must select the correct G group (G41/G42) in the contour program, because this
program also happens to contain the machining direction.