Edge Distance - Rib (Cycle977) - Siemens SINUMERIK 840D sl Programming Manual

Measuring variants
2.3 Measure workpiece (milling)
2.3.8

Edge distance - rib (CYCLE977)

Function
This measuring variant can be used to measure a rib on a workpiece. The rib width is
measured and the rib center point is determined.
Measurements at an inclined rib are also possible. To do this, an angle corresponding to the
actual angularity of the rib position should be entered into the parameterizing screen form.
Probing at the rib edge always takes place at right angles. A protection zone can be defined
at the side of the rib.
The measurement result (measurement difference) can be used as follows:
● Correction of a WO so that the workpiece zero point is in relation to the rib center point.
● Offset of a tool
● Measurement without offset
Measuring principle
1 point at each of the opposite edges of the rib are measured based on the selected
measuring axis. The positive direction of the geometry axis is measured first. From the two
actual positions, taking into account the calibration values, the rib width is calculated. The
position of the rib center as workpiece zero is determined corresponding to the work offset
selected to be corrected.
The measured difference of the rib width is used as basic variable for a tool offset, the
position of rib zero point, as basis of a work offset.
Measure: Rib (CYCLE977)
110
Measure: Rib with a protection zone
(CYCLE977)
Programming Manual, 02/2011, 6FC5398-4BP40-0BA0
Measuring cycles