Automatic Operation; Port Datum Procedure - Renishaw ACR2 Guia De Instalacion

AUTOMATIC OPERATION

4 AUTOMATIC OPERATION

4.1 Port datum procedure

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This section gives a suggested method for datuming an ACR2 autochange
rack port and the recommended CMM movements for change cycles using
that datum position.
This method allows datuming of each ACR2 port by taking probing points on
one of the location pins.
1.
Qualify the PHS and probe combination as shown below
Note that the probe tip must be qualified before the port can be
datumed. Refer to the PHS Calibration Guide H-1000-4048 for
recommended probe calibration procedure.
A typical probe assembly suitable for port datuming would be

HA8 probe arm

TP2 probe

PS17R 20mm stylus
Nominal offset values for this probe assembly are

RD 72mm

RE 104mm
The values RD and RE should be established to within ±0.1mm by the
probe qualification procedure.
Note also the angular orientation of the D and E axes required for port
datuming (D 0°, E 0°). The probe tip should be aligned to the axis
origins to within 0.1°.
Manual No. H-1000-4045