WABECO D2400, Руководство по эксплуатации

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16
8
.
Applications
8.1 Longitudinal and transverse turning
i
For the reason of the force effect at the turning tool take care that the tool is short
and tightly clamped. If the lever arm is to long the turning chisel curves and
springs back. The cutting part enters uneven into the workpiece and is producing
a waved surface.
Take care that the turning tool is directed to the centre of the work piece.
The height position in the workpiece centre is regulated via the live lathe centre
inside the tailstock.
The height position of the turning tool is achieved by straight sheet steel.
8.2 Thread cutting with automatic feed
8.2.1 General note
The thread cutting tool is a shape turning tool with the profile of the thread to be cut. It is ground
according to jigs (diagram 1) and must be adjusted exactly to the workpiece centre as, otherwise,
the profile of the thread would be distorted.
In order to obtain the correct position of the thread flanks to the axis of the workpiece, the grinding
jig is put against the work piece and the turning tool is adjusted in accordance with it (diagram 1).
For this purpose the jig is put successively on to both flanks of the turning tool. The feed of the
thread cutting tool is effected over the lead screw and must correspond to the thread pitch.
Setting the thread cutting tool
90°
Change gears:
The connection between the feed gear and the lead screw is made by the change gear wheels
(optional for D2000, D2000 and D2400). By putting on various combinations of gear wheels it is
possible to cut a metric right-hand thread with a pitch of 0.4 mm - 3 mm and an inch-system right-
hand thread with a pitch of 10Z/1" - 32 Z/1" (see table “table for thread cutting and automatic feed”).
The various distances between the gear axes can be adjusted by swiveling the quadrant and by re-
adjusting the quadrant bolts.