Measurement And Correction Strategy; Measuring Strategy - Siemens SINUMERIK 840D sl Programming Manual

5.2.2

Measurement and correction strategy

5.2.2.1

Measuring strategy

Pre-positioning the tool
The tool must be aligned vertically with the probe before the measuring cycle is called.
Tool axis parallel to center line of probe.
It must be prepositioned in such as way that collision-free approach to the probe is possible.
First, the measuring cycle generates traverse paths to the position where measuring starts
with a reduced rapid traverse velocity (_SPEED[0]), or with active collision monitoring at the
position feedrate set in _SPEED[1] or _SPEED[2].
Tool measurement with motionless spindle
Before the cycle call for measurement of milling tools the tool and spindle must be moved
such that the selected cutting edge can be measured (length or radius).
The measurement feedrate is defined in _VMS.
Tool measurement with rotating spindle
Typically, measurements of the radius of milling tools are executed with rotating spindle,
that is the largest edge determines the measuring result.
Length measurement of milling tools with rotating spindle might also be practical.
Points to bear in mind:
● Is the tool probe permissible for measuring with rotating spindle with length and/or radius
● Permissible peripheral speed for the tool to be measured.
● Maximum permissible speed.
● Maximum permissible feedrate for probing.
● Minimum feedrate for probing.
Measuring cycles
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
calculation? (Manufacturer documentation).
Measuring Cycles for Milling and Machining Centers
5.2 CYCLE971 tool: Measuring milling tools, drills
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