HP 5528A User Manual

Model 5528A
Para ll e li sm Measuremen ts
14-6
ROTATIONAL PARALLELISM MEASUREMENTS
Th is type of measurement is used to determine the parallelism between a lathe's spind le axis and
its
too l's travel path. Two Straightness measurements are made, with the Straightness Refle cto r
held
in the lathe's spindle; the spindle ( and Reflec tor ) are rotated 180 degrees between the first
and second meas urement , otherwise the two measurements arc the same.
STRAIGHTNESS
REFLECTOR
A. TYPICAL PARALLELISM
CONFIGURATION
STRAIGHTNESS
INTERFEROMETER
STRAIGHTNESS
REFlECTOR
B. FIRST MEASUREMENT PATH
TURNING
MIRROR
r..- _ LASER HEAO
_ _ --,, 8 ,- P"INDLE AXIS
MEASUREMENT AXIS
SPINDLE
AND
STRAIGHTNESS REFLECTOR
ROTATED
180
0
MEASUAEMEttT AXIS
__ ---' 8::.P .:; 1 N 0 LE AX IS
"
C. SECOND MEASUREMENT PATH
PARAllELISM ERROR EQUALS THE ANGULAR DISPLACEMENT BETWEEN THE
TOOLPOST TRAVEL AXIS AND THE SPINDLE AXIS. THIS IS OBTAINED BY COM-
PUTING
0, AND 02 ; THEN TAKING 112 THEIR ALGEBRAIC SUM.
Figure 14-3. ROlational Parallelism Measuremellls

HP 5528A Specifications

General

Brand	HP
Model	5528A
Category	Measuring Instruments
Language	English