MULTI-START THREADS
Proceed as follows to produce a multiple-start thread:
1. Set the angle to 0 in ANGLE MODE.
2.
Switch to thread mode and cut the first thread.
3.
Switch back to angle mode and manually rotate the chuck to the desired angle. This would
be 180° for a 2-course thread, 120° for a 3-course thread, and so on. Then set the angle to 0.
4. Return to thread mode and cut again, you will see that the new track is next to the first.
5. Repeat for all threads. If the thread does not fit completely, it can be repeated as required.
THREAD REPAIR
If you have accidentally moved something in between, e.g. by removing the workpiece from the
chuck and the thread was not yet finished, you can find the position on the thread again.
The procedure is to place the cutting edge over the material and then start a thread cut if the
pitch is correct. The spindle is stopped in the middle and the cutting edge is positioned man-
ually so that it sits exactly in the existing thread groove. Then you move the cutting edge out
again by hand, restart the spindle and end the cycle. Then the cutting edge in Z is exactly right:
1.
Set the ELS in the parameter menu for external threads to „Radial infeed“.
2. Set the correct thread pitch
3. Place the thread chisel in Z on the zero point.
4. Set the thread length (ZP), set XP to 0.
5. Now position the lathe tool in the X-direction slightly above the existing surface so that no
material is removed when moving.
6.
Now start the spindle very slowly and press Start.
7.
The bit is then positioned, and after a short waiting period, the control unit starts moving.
When the chisel is about half its length, stop the spindle!
8. Now switch off the X-axis with Xoff and turn the turning tool on the cross support and on the
top slide so that it stands exactly in the existing thread groove.
9. Pull the chisel out of the groove all the way only in the X direction.
10.
Start the spindle again, the cycle continues and the process is completed.
11. At the end, move with the jog keys in the Z direction over the thread to be repaired and
position X so that it is on the top of the material, then zero the X axis. Drive Z to zero point.
12. Now you can cut the thread, set the desired depth in XP, which you can then either drive in
one train or in several infeeds.
76
Содержание ELS 4 Basic
Страница 2: ......
Страница 23: ...21 ...
Страница 59: ...57 ...
Страница 63: ...61 ...
Страница 96: ...Zeroing is done as follows Possible grooves 94 ...