Cross Slide (Fig. 4); Working With The Cross Slide; Upper Carriage (Fig. 5); Working With The Upper Carriage - Proxxon FD 150/E Manual De Uso

2. Firmly insert the lathe centre with cone by hand into the quill.
The cone is seated tightly and cannot be pulled out from the
front.
3. To push the tailstock 1 approximately up to the workpiece, re-
lease the clamping lever 5 (Fig. 3), push the tailstock on the
base guide to the required position and retighten the clamp-
ing lever 5. The lathe centre can be positioned on the work-
piece face side with regulated light pressure by turning the
handwheel 4. The quill should be clamped to this position by
tightening the knurled screw 6 .
4. To release the cone of the travelling centre (or another utilised
tool), turn the handwheel 4 to turn the quill 2 as far as pos-
sible into the tailstock after the work. The cone will release
and can be removed.

Cross slide (Fig. 4)

The cross slide 1 enables the cutting tool 3 to move vertically to
the rotary axis of the workpiece by turning the handwheel 2.
This permits the infeed during work, i.e. to regulate the rate of
cut.
Caution: The handwheels of the machine are equipped with ro-
tating scale rings: To traverse the carriage by a defined amount,
the scale ring can be set to 0. The exact infeed can be read on
the scale while operating the handwheel.
Also, this enables the machining a frontal plane face of a work-
piece (face turning) or the so-called "parting" of a workpiece.
This is understood as parting beyond the rotary axis so that the
workpiece is detached.

Working with the cross slide

1. The cross slide (together with the upper carriage) can be
pushed along the guide of the machine bed into the pro-
cessing position at the workpiece. To do so, release clamp-
ing lever 4, move the carriage to the required position and
retighten the clamping lever 4.
2. Regulate the position of the cutting tool 3 by turning the
handwheel 2 before and during work.

Upper carriage (Fig. 5)

The upper carriage 1 enables the direct guiding and traversing
of the tool holder including the cutting tool preferably in the lon-
gitudinal direction.
In addition, the upper carriage in our machine can be swivelled:
This makes it possible to manufacture not just cylindrical work-
pieces by traversing the cutting tool parallel to the longitudinal
axis of the machine (longitudinal turning): Cone-shaped work-
pieces or tapered sections can also be turned if the upper car-
riage is swivelled somewhat.
We have attached an angle scale to help set the angle of the
cones to be manufactured.
The traverse path of the carriage on the precision dovetail guide
is 60 mm.
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Working with the upper carriage

When delivered, the upper carriage 1 is set exactly to =0°, i.e. for
(cylindrical) straight turning.
1. Move the cutting tool 3 radially to the required position by
turning the handwheel 2.
2. Switch on the machine. Caution: make sure that the chuck
guard 6 is in the bottom position!
3. By turning the handwheel 5, move the upper carriage 1 with
the cutting tool with the required infeed along the rotating
workpiece.
If a cone or taper will be turned, the upper carriage 1 must be
pivoted by the required amount:
1. By turning the handwheel 5, move the upper carriage 1 so far
to the right until screw 4 can be accessed.
2. Loosen screw 4 and set the required conicity using the mark-
ing on the angle scale 7.
3. Retighten screw 4. Turning the handwheel 5 will traverse the
upper carriage and thus the cutting tool during turning.
Please note that here, just as for the other handwheels of the ma-
chine, the scale rings are moveable and can be set to zero. The
traveled path of the tool can then be read on the scale. One rev-
olution of the handwheel corresponds to one millimetre route.

The three-jaw chuck (Fig. 6)

The chuck 1 serves as a holding fixture and for clamping the
workpieces to be machined. It has a 8.5 mm opening, just like the
work spindle of the machine. Thus, round materials with a rough
diameter of 8 mm can also be guided through the spindle!
When clamping a longer workpiece that is guided through the
spindle and which projects out to the left, there is an increased
risk of injuries. Be particularly careful in this case to prevent ob-
jects from being caught by the rotating shaft. Secure this area
separately.

Clamping the workpiece:

Insert both pins 2 and 3 included in the delivery into the provided
holes at the circumference of both chuck bodies and turn both
chuck parts against each other to open the clamping jaws. The
opposite turning direction causes the jaws to close after the
workpiece has been inserted, thus clamping the workpiece.

Reversing the jaws (Fig. 7):

If the jaws are turned completely to the outside, as described
above, they can be removed, reversed, and then reinserted.
Caution!