Measure Bolt Hole Circle (Cycle 430, Din/Iso: G430, Software Option 17); Cycle Run - HEIDENHAIN TNC 620 User Manual

15
Touch Probe Cycles: Automatic Workpiece Inspection | MEASURE BOLT HOLE CIRCLE (Cycle 430, DIN/ISO:
15.12 MEASURE BOLT HOLE CIRCLE
(Cycle 430, DIN/ISO: G430, software
option 17)

Cycle run

Touch Probe Cycle 430 finds the center and diameter of a bolt
hole circle by probing three holes. If you define the corresponding
tolerance values in the cycle, the TNC makes a nominal-to-
actual value comparison and saves the deviation value in system
parameters.
1 Following the positioning logic, the TNC positions the touch
probe at rapid traverse (value from FMAX column) (see
"Executing touch probe cycles", Page 339) to the center of the
first hole 1.
2 Then the probe moves to the entered measuring height and
probes four points to find the first hole center.
3 The touch probe returns to the clearance height and then to the
position entered as center of the second hole 2.
4 The TNC moves the touch probe to the entered measuring
height and probes four points to find the second hole center.
5 The touch probe returns to the clearance height and then to the
position entered as center of the third hole 3.
6 The TNC moves the touch probe to the entered measuring
height and probes four points to find the third hole center.
7 Finally the TNC returns the touch probe to the clearance height
and saves the actual values and the deviations in the following
Q parameters:
Parameter number
Q151
Q152
Q153
Q161
Q162
Q163
460
Meaning
Actual value of center in reference axis
Actual value of center in minor axis
Actual value of bolt hole circle diameter
Deviation at center of reference axis
Deviation at center of minor axis
Deviation of bolt hole circle diameter
HEIDENHAIN | TNC 620 | User's manual for cycle programming | 10/2017
G430, software option 17)