OPERATION
HOLZMANN MASCHINEN GmbH www.holzmann-maschinen.at
65
ED1080ADIG
Module threads
Trapezoidal threads
Settings for Module Threads
T … feed gear – number of teeth
Settings for Trapezoidal threads
T … feed gear – number of teeth
18.5.6
Thread dial indicator (for resumption of the gradient)
N O T I C E
Do not engage the clasp nut if the lead screw rotates at more than 200 revolutions
per minute or if the carriage lock is locked, otherwise damage may be caused to the
bearings or the shear pin of the spindle may break!
The thread dial indicator (1) can also be used for cutting metric
threads. The thread dial indicator (to resume the pitch) is located
on the right of the apron.
The thread dial indicator has an important function. It indicates the
correct moment to engage the " shift lever tapping (lock nut)” (2),
so that the tool takes up the same turn again at each step.
On the lower end of the thread dial indicator shaft there are several change gears with different
numbers of teeth to be able to turn metric threads with different thread pitches. The change gear
of the thread dial indicator is changed as required so that the gear selected for the desired thread
pitch engages with the lead screw.
On the dial of the thread gauge there are the numbered lines 1, 3,
5 and 7. In between there are lines without numbering, so called
half lines. When the lead screw is engaged, the dial rotates.
There is only one line mark (fixed line) on the housing of the
thread dial indicator.
The table on the side of the gearbox housing (see illustration on
the left) shows the pitch, the selection and the coupling sequence
of the marks on the rotating dial with the fixed mark. The numbers
in the line "SCALE" refer to the numbering of the graduation marks
on the thread dial indicator. For threading, engage the lock nut at
the height of the corresponding number indicated in the table.
Summary of Contents for ED1080ADIG
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