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Calibration Of A Workpiece Probe On A Surface - Siemens SINUMERIK 840D sl Programming Manual

Measuring cycles hmi sl.
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2 measuring runs, one with spindle reversal
The cycle performs two measurement operations to determine the positional deviance of the
probe and the center point of the hole.
1. Spindle positioned 180 degrees from initial position with SPOS and all axis directions
2. Spindle positioned at initial position and all axis directions traversed again.
Position after end of measuring cycle
When calibration is complete the probe is again positioned at calibration height in the center
of the hole.
Note
Repeating calibration using the determined hole center is advisable if the starting position at
the beginning is severely eccentric or measuring accuracy demands are high.
5.3.4

Calibration of a workpiece probe on a surface

5.3.4.1
General information
Function
Using this measuring cycle and the _MVAR=0
measuring variant, a workpiece probe can be calibrated in one axis and one direction on a
known surface with sufficiently good surface roughness and which is perpendicular to the
measuring axis. This can be done on a workpiece, for example.
The trigger point of the relevant axis and axis direction is calculated and entered in the
workpiece probe array _WP[i,1] to _WP[i,5] provided.
Measuring cycles
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
traversed.
Measuring Cycles for Milling and Machining Centers
5.3 CYCLE976 calibrate workpiece probe
131

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