of the thread dial indicator is changed as required so that the gear selected for the desired thread
pitch engages with the lead screw.
18.6
Tool post
The main function of the tool post is to fix the tool. If necessary, the tool post can also hold more
than one tool (maximum 4).
When inserting the tool, make sure that the cutting head of the tool points in the direction of the
rotation axis of the workpiece.
Tool change
Before any manual tool change, stop the spindles, wait for all tools to come to a
standstill and secure the machine against unintentional restarting before changing
the tools!
Align the turning tool in height. Use the tailstock with centering point to determine the
required height. If necessary, place steel supports under the machine tool to obtain the
required height.
HOLZMANN MASCHINEN GmbH
On the dial of the thread gauge there are the numbered lines
1 - 12. 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 14T, 15T, 16T 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.
CAUTION
Clamp the turning tool into the tool post (L).
The turning tool must be clamped as short and tightly as
possible in order to be able to absorb the cutting force occurring
during chip formation well and reliably.
Also ensure that the turning tool is clamped at a right angle to
the axis of rotation (see illustration on the left). When clamping
at an angle, the turning tool can be pulled into the workpiece.
The cutting edge of the turning tool must be set exactly to
centre height during facing so that the face is free of studs.
Facing produces flat surfaces perpendicular to the workpiece
axis of rotation. A distinction is made between transverse face
turning, transverse cut-off turning and longitudinal face turning.
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OPERATION
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