Face Turning; Taper Turning; Cutting Off A Work Piece; Machining Long Work Pieces With Tailstock And Centre - Proxxon PD230/E Bedienungsanleitung

Face turning

This method of working is used to turn off the face of a work
piece.
1. Adjust the right side tool by approx. 2° to 3° (Fig. 15).
2. Move the cross-slide from outside inwards (to the centre)
with the turning tool.
Important
The cutting speed from outside inwards differs considerably
for work pieces with larger diameters. Therefore, push the
cross-slide slowly and sensitively.

Taper turning

The top slide (Fig. 16) is equipped with a scale and can be
swivelled by 45° on either side of zero for taper turning. To do
so, release fastening screw 1, adjust top slide and then re-
tighten.

Cutting off a work piece

1. Clamp the cut-off tool at right angles in the tool holder.
Important
Give the cut-off tool as short an overhang as possible (half of
the diameter of the work piece + 1 mm). Similarly, give the
work piece as short an overhang as possible.
Note the exact centre height of the cut-off tool. Work at low
speeds and cool blade as often as possible.
2. Sensitively move the cross-slide from outside inwards (to
the centre) with the turning tool.
Note:
Machining longer work pieces with tail-
stock and centre
Important
If the chuck projection is greater than three times the diame-
ter of the work piece, the work piece must be held at the
right end by the tailstock and centre.
For this purpose, a centre bore must be drilled on the right
side of the work piece.
1. Face turn the right face.
2. Insert the drill chuck (accessories) in the tailstock and
clamp the centring drill.
3. Move the tailstock with drill chuck and centring drill up to
the face of the work piece.
4. Switch on the machine and drill centre bore using the
sleeve feed.
5. Replace the drill chuck with the rotating centre 1 (Fig. 17).
6. Insert the centre in the centre bore and clamp the tailstock
3 securely.
7. Advance the sleeve 2 until all play is eliminated.
8. Secure the sleeve using a set screw 4.

Fitting change gears for thread cutting

The PROXXON Lathe PD 230/E can be used to cut metric
threads with a pitch of: 0.5 (M3), 0.625, 0.7 (M4), 0.75,
0.8 (M5), 1.0 (M6), 1.25 (M8), and 1.5 (M10).
The PD 230/E is supplied with installed gear arm and the
change gear combination for the automatic feed of 0.05
mm/revolution. It is only necessary to replace the change
gears installed on the gear arm for thread cutting.
1. Release the clamp screw 1 (Fig. 18) and tilt the gear arm 2
slightly upwards to remove the toothed belt 4.
2. Remove the fastening screws 3 and 5 from the normal
gears for the automatic feed.
Note:
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