Chapter 4 Angular Measurements
Angular Position Measurements
Measurements Reference Guide 4-47
For parallel spindle and table axes
See Figure 4-26.
1 Perform all appropriate steps of the setup, mounting, and aligning
procedures above.
NOTE The clutch breakaway nut is not required for a setup having both the table
axis and the spindle axis vertical. However, you may use it in this
situation with no problem. If you choose not to use the clutch breakaway
nut, modify this procedure accordingly. You should use the clutch
breakaway nut in any setup where the table axis is horizontal.
2 Place the clutch breakaway nut on the clutch control shaft, if it is not
already there, but do not tighten it.
3 Screw the stub post onto the small threaded portion at the end of the
clutch control shaft. Without allowing the shaft to rotate with respect to
the rest of the fixture, tighten the stub post onto the shaft.
4 If necessary, jog the clutch control shaft to position it in the center of its
hole in the angular position measurements fixture.
5 Tighten the clutch breakaway nut on the clutch control shaft against the
top of the angular position measurements fixture. This locks the clutch in
its engaged position, and prevents any load from the linkage hardware
from affecting the shaft’s position.
6 Insert a post in the spindle, with its externally-threaded end extended.
7 Position the machine parts as necessary to center the stub post’s mating
hole at the end of the post in the spindle.
8 If necessary, loosen the post in the spindle so it can be brought into
contact with the stub post on the clutch control shaft.
To Next Page
Loading...
