Parameters
Description
Unit
X1
Allowance in X ∅ (abs) or allowance in X (inc)
mm
Z1
Allowance in Z (abs) or allowance in Z (inc) – (for undercut form F only)
mm
VX
Cross feed ∅ (abs) or cross feed (inc)
mm
* Unit of feedrate as programmed before the cycle call
10.2.5
Thread undercuts (CYCLE940)
Function
The "Thread undercut DIN" or "Thread undercut" cycle is used to program thread undercuts to
DIN 76 for workpieces with a metric ISO thread, or freely definable thread undercuts.
Approach/retraction
1. The tool first moves to the starting point calculated internally in the cycle at rapid traverse.
2. The first cut is made at the machining feedrate, starting from the flank and traveling along
the shape of the thread undercut as far as the safety distance.
3. The tool moves to the next starting position at rapid traverse.
4. Steps 2 and 3 are repeated until the thread undercut is finished.
5. The tool moves back to the starting point at rapid traverse.
During finishing, the tool travels as far as cross-feed VX.
Procedure
1.
The part program or ShopTurn program to be processed has been cre‐
ated and you are in the editor.
2.
Press the "Turning" softkey.
3.
Press the "Undercut" softkey.
4.
Press the "Thread undercut DIN" softkey.
The "Thread Undercut (DIN 76)" input window opens.
- OR -
Press the "Thread undercut" softkey.
The "Thread Undercut" input window opens.
Programming technology functions (cycles)
10.2 Rotate
Turning
414
Operating Manual, 06/2019, A5E44903486B AB
Содержание SINUMERIK 840D sl
Страница 8: ...Preface Turning 8 Operating Manual 06 2019 A5E44903486B AB ...
Страница 70: ...Introduction 2 4 User interface Turning 70 Operating Manual 06 2019 A5E44903486B AB ...
Страница 274: ... Creating a G code program 8 8 Selection of the cycles via softkey Turning 274 Operating Manual 06 2019 A5E44903486B AB ...
Страница 275: ... Creating a G code program 8 8 Selection of the cycles via softkey Turning Operating Manual 06 2019 A5E44903486B AB 275 ...
Страница 282: ...Creating a G code program 8 10 Measuring cycle support Turning 282 Operating Manual 06 2019 A5E44903486B AB ...
Страница 344: ...Creating a ShopTurn program 9 19 Example Standard machining Turning 344 Operating Manual 06 2019 A5E44903486B AB ...
Страница 716: ...Collision avoidance 12 2 Set collision avoidance Turning 716 Operating Manual 06 2019 A5E44903486B AB ...
Страница 774: ...Tool management 13 15 Working with multitool Turning 774 Operating Manual 06 2019 A5E44903486B AB ...
Страница 834: ...Managing programs 14 19 RS 232 C Turning 834 Operating Manual 06 2019 A5E44903486B AB ...
Страница 856: ...Alarm error and system messages 15 9 Remote diagnostics Turning 856 Operating Manual 06 2019 A5E44903486B AB ...
Страница 892: ...Working with two tool carriers 18 2 Measure tool Turning 892 Operating Manual 06 2019 A5E44903486B AB ...
Страница 912: ...HT 8 840D sl only 20 5 Calibrating the touch panel Turning 912 Operating Manual 06 2019 A5E44903486B AB ...
Страница 927: ...Appendix A A 1 840D sl 828D documentation overview Turning Operating Manual 06 2019 A5E44903486B AB 927 ...