Renishaw SP25M Bedienungsanleitung Seite 64

SP25M user's guide
http://www.renishaw.com
SH25-4 against SH25-4A - bi-directional ring gauge scan test
Straight stylus perfromance - effective stylus reach 221 mm:
Stylus holder
SH25-4
SH25-4A
Cranked styus performance - crank down distance 225 mm, crank out distance 83 mm:
Stylus holder
SH25-4
SH25-4A
Test setup criteria
Test site Renishaw UK
Styli used Renishaw's M3 stylus range
3
CMM
U = 0.48 µm + L / 1000
specification
CMM Renishaw's UCC2
controller
Probe Renishaw's third order polynomial calibration method
calibration
Data filter Harmonic simple cut off order = 60 UPR (undulations per revolution)
used
Artefacts Ø25 mm (nom) calibration sphere (for the ISO 10360 Part 2 / Part 4 tests)
used Ø50 mm (nom) ring gauge (for the ring gauge scan tests)
Scanning 5 mm/s (for the ISO 10360 Part 4 and ring gauge scan tests)
speed
Touch 5 mm/s (for the ISO 10360 Part 2 tests)
speed
Back off 1 mm/s (for the ISO 10360 Part 2 tests)
speed
Bi- The effect of probe misalignment and contact friction will result in radius changes with scanning direction if a suitable
directional calibration procedure is not used.
scans Mechanical hysteresis within a probe mechanism is best demonstrated by a bi-directional scan.
Therefore, Renishaw have decided to take the high integrity approach of quoting ring gauge metrology using bi-directional
scan data to demonstrate the performance of the Renishaw probe and calibration method.
Issued 10 2015
SPAN data raw
3.0 µm
3.5 µm
SPAN data raw
15.7 µm
5.1 µm
SPAN data filtered
1.7 µm
2.4 µm
SPAN data filtered
5.0 µm
2.4 µm
Stylus tip deflection
0.2 mm
0.2 mm
Stylus tip deflection
0.35 mm
0.35 mm
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