Teach-in | Thread and undercut cycles
5
HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
339
MFS: M at beginning: M function that is executed at the
beginning of the machining step
MFE: M at end: M function that is executed at the end of the
machining step
WP: No. of spindle – Displays which workpiece spindle is used
to execute the cycle (machine-dependent)
Main drive
Opposing spindle for rear-face machining
BW: Angle in the B axis (machine-dependent)
CW: Reverse the tool (machine-dependent)
HC: Shoe brake (machine-dependent)
DF: Miscellaneous function (machine-dependent)
Type of machining for technology database access:
Finishing
All parameters that you enter will be accounted for—even if the
standard table prescribes other values. If the parameters I, K, W
and R are not defined, the control determines these parameters
from FP in the standard table.
Further information: "DIN 509 F", Page 686
Cycle run:
1
Approach the workpiece from the Start point
to the Start point cylinder X1
Alternative:
for the thread chamfer
2 Machine the thread chamfer, if defined
3 Finish-machine the cylinder up to the beginning of the undercut
4 Machine the undercut
5
Finish-machine to the End point transv. X2
6 Return
Without return: Tool remains at the End point transv.
With return: Retract and return diagonally to the Start point
7
Move to the Tool change point according to the setting in G14
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