L976 Calibrating The Workpiece Probe In Reference Hole (Plane) - Siemens SINUMERIK 840 User Manual

08.96
5.1.1

L976 Calibrating the workpiece probe in reference hole (plane)

Function and application
The measuring cycle calibrates the probe clamped in the spindle in a reference hole. The trig-
ger points determined are loaded into the relevant MDC area.
The cycle positions the probe automatically into the selected reference hole. Positioning is
paraxial with linear interpolation over the shortest distance.
The probe is at the centre of the hole on completion of calibration.
Preconditions:
• The probe must be called with tool offset and G53.
• The dimensions of the reference hole in relation to the machine zero point must have been
input in the MDC area.
• The valid reference hole is specified with R12.
• Random start point
• The probe ball must be located above the upper edge of the reference hole.
The following parameters must be defined prior to call:
Parameters Description
R12 Selection of reference hole
R13 = 0...359.5 Compensation angle position for monodirectional probe (see Section 2.5)
R22 Probe type/probe number (see Section 2.6)
R23 = 0 Calibrating in reference hole (plane) (see Section 2.7.4)
R25 Variable measuring speed in mm/min
R25 = 0 Standard cycle value
R27 = 1...R Number of measurements at same location (typically 1...3)
max
R28 = 1...R Multiplication factor for measurement path "2a"
max
R30 Measuring axis (definition depending on R23)
R31 Axial direction (definition depending on R23)
= 0 Positive axial direction
= 1 Negative axial direction
R33 Zero offset range
R36 Safe area
See Section 10.2 for result display parameters.
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Siemens AG 1990 All Rights Reserved
SINUMERIK 840/850/880 (BN)
5 Measuring Cycles for Milling Machines and Machining Centres
5.1.1 L976 Calibrating the workpiece probe in reference hole (plane)
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