Thread Synchronizing - Siemens SINUMERIK 840D sl Turning Operating Manual

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5.7 Thread synchronizing

5.7 Thread synchronizing
If you wish to re-machine a thread, it may be necessary to synchronize the spindle to the
existing thread turn. By reclamping the blank, an angular offset can occur in the thread.
Constraint
Thread synchronizing is not possible if a tool carrier is used (B axis).
Note
Activating/deactivating thread synchronization
Active thread synchronization has an effect on all the following "Thread turning" machining
steps.
Thread synchronization remains effective without deactivation even after the machining has
been shut down.
Requirement
The spindle is stationary.
One threading tool is active.
Procedure
150
1. Select the "JOG" operating mode.
2. Press the menu forward key and the "Thread synchr." softkey.
3. Thread the thread cutting tool into the thread turn as shown in the help
screen.
4. Press the "Teach-in main spindle" softkey if you are working at the main
spindle.
- OR -
Press the "Teach-in counterspindle" softkey if you are working at the
counterspindle.
Operating Manual, 06/2019, A5E44903486B AB
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