Centering" With Continuous Measurement - Siemens SINUMERIK 840D sl Function Manual

Examples

4.6 "Centering" with continuous measurement

Program
DEFINE INDEX AS $AC_MARKER[0]
IDS=1 EVERY $AC_TIMEC==0 DO INDEX =
INDEX + 1
IDS=2 DO $R[10+INDEX] = $AC_TIME
4.6 "Centering" with continuous measurement
Introduction
The gaps between gear teeth are measured sequentially. The gap dimension is calculated
from the sum of all gaps and the number of teeth. The center position required to continue
machining is the position of the first measuring point plus 1/2 the average gap size. When
measuring, the speed is selected so that for each interpolation clock cycle a measured value
can be reliably detected.
Figure 4-4
144
Diagrammatic representation showing how gaps between the gear teeth are measured
Comment
; The example is
; as follows with symbolic programming:
; Agreements for symbolic
; programming
; Advance R parameter
; pointer on block change
; Write current time
; of block start in each case to R parameter
Function Manual, 08/2018, 6FC5397-5BP40-6BA2
Synchronized actions