Thread Recutting (Sw 5.3 And Higher) - Siemens SINUMERIK 840D Programming Manual

4
03.96
04.00
4.9

Thread recutting (SW 5.3 and higher)

SW 5.3 contains thread cutting cycles CYCLE97 and
CYCLE98 which allow threads to be recut.
Function
The angular offset of a thread start resulting from
tool breakage or remeasurement is taken into
account and compensated for by the "Thread recut"
function.
This function can be executed in JOG mode in the
Machine operating area.
The cycles calculate an additional offset angle for
each thread, which is applied in addition to the
programmed starting point offset, from the data
stored in the thread start during synchronization.
Preconditions
The channel in which the thread recutting program must
be executed is already selected; the relevant axes must
already be referenced. The channel is in the Reset
state, the spindle is stationary.
Sequence of operations
•
Select JOG in "Machine" operating area.
•
Press soft key "Finish thread"
è Open screen form for this function.
•
Thread into thread start using the threading tool.
•
Select soft key "Sync Point" when the cutting tool is
positioned exactly in the thread start.
© Siemens AG, 2002. All rights reserved
SINUMERIK 840D/840Di/810D Programming Guide Cycles (PGZ) – 11.02 Edition

4.9 Thread recutting (SW 5.3 and higher)

4
Turning Cycles
4-323