With electrode blanks fixtured, an operator fires up a WIT-written macro that directs the MP700 into a ring gage
mounted in the middle of the table.
Imagine a ring gage
placed on a CMM for a reference measurement.
We used a single master setting ring gage
to establish size several times each day, and we depended on a yearly calibration to adjust and certify the magnification and linearity of these air gages.
Gages include a master ring gage
as a reference dimension between the gage line and spindle face; measuring devices for measuring the distance between the gage line and the spindle face; and master arbor to measure axial movement of the holder.
A suitable "go" thread ring gage
or a Thread Trend Comparator gaging with full form rolls will do the job.
Mr Heath explains, "In discussing the capability to measure circular form we learned that 1) this is not an easy task for a CMM and 2) one picture of the machine's measurement of a XXX ring gage
is worth many words about presumed capabilities.
In the case of one carbide ring gage
, for example, time to remove 0.060" to 0.070" of metal has been reduced from 8 hours for 6 pieces to 2 hours.
The ring gage
can be mounted and centered in 15 min, and each test sequence is only as long as it takes the machine to trace a circle.
The types of parts handled by the grinder include die plates, spring collets, toolholding fixtures, hydraulic components, and thread ring gages
. Materials that can be ground include tool steel, carbide, ceramics, and glass.
ASME B89.L6M-20XX, Measurement of Qualified Plain Internal Diameters for Use as Master Rings and Ring Gages
. Revise current ASME B89.1.6M-2002.