Measurement With Stationary Spindle; Measurement With Rotating Spindle - Siemens SINUMERIK 840D sl Programming Manual

Starting position before the measurement
Before the cycle call, a starting position must be assumed from which the probe can be
approached collision-free. The measuring cycle calculates the direction of approach and
generates the appropriate traversing blocks.
①
②
Figure 3-40
Position after the end of the measuring cycle
The tool is positioned at the measurement path distance away from the measuring surface.
3.6.3.1

Measurement with stationary spindle

Tool measurement with stationary spindle
When measuring milling tools, before the measuring cycle is called, the tool with the spindle
must be rotated so that the selected cutting edge can be measured (length or radius).
3.6.3.2

Measurement with rotating spindle

Tool measurement with rotating spindle
Typically, measurements of the radius of milling tools are executed with rotating spindle, which
means that the largest cutting edge determines the measuring result.
Likewise, it can make sense to measure the length of milling tools with the spindle rotating.
The following must be taken into account:
● Is it permissible to use the tool probe to perform measurements with rotating spindle with
length and/or radius calculation? (manufacturer data)
● Permissible peripheral (circumferential) speed for the tool to be measured
● Maximum permissible speed
Measuring cycles
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
1 2
General SD 54626 $SNS_MEA_TP_TRIG_PLUS_DIR_AX1
General SD 54625 $SNS_MEA_TP_TRIG_MINUS_DIR_AX1
Measure tool (CYCLE971), starting positions for measuring in the plane
Measuring variants
3.6 Measure tool (milling)
293