Table of Contents
Advertisement
Figure 21
4. Each shaft has room for two positions to
mount the gears—a forward position and a rear
position.
Figure 22
separates these positions
into different shades for you to understand
better.
Both forward and rear positions must be filled
on the shaft in order for the gears to work
properly. A good example of this is the blank
spot to the right of gear "F," as shown in the
chart in
Figure 22.
Although the chart shows this as a blank spot,
there should actually be a spacer in this position
on the machine. This spacer is not listed on the
chart, because the chart only reflects ACTIVE
gear positions.
Note: Smaller gears can be used as spacers.
Figure 22
5. The lines between gears "D" & "E" and
gears "F" & "L" on the chart in
indicate where the gears should be engaged.
Figure 23
6. The boxes shaded in
actual gear combinations required to cut the
thread pitches.
Figure 23
Figure 24
represent the
Here is a real-world example of a gear
setup as shown on the chart:
When the lathe is shipped from the factory, it
is geared for a carriage feed rate of 0.1mm per
spindle revolution, or the gear combination
shaded in
Figure 24.
Figure 24 Chart showing gear
Figure 25
shows a profile of the 0.1mm feed
rate actual gear setup on the machine. Notice
how the gears engage together in the locations
displayed on the chart.
Note:
On some setups, smaller gears
must be used as spacers on the
adjustable shafts. In these situations, the
smaller gears do not engage with the
other gears.
Figure 25 Gear setup for 0.1mm feed rate
20
setup for 0.1 mm
Advertisement
Table of Contents
