Heidenhain TNC 620 (34056x-04) Cycle programming Manual de usuario descargar pdf (Pagina 383)

100

101

MEASURE RIDGE WIDTH (Cycle 426, DIN/ISO: G426, software

option 17)

16.10

TNC 620 | User's Manual Cycle Programming | 5/2013

383

16.10 MEASURE RIDGE WIDTH (Cycle 426,

DIN/ISO: G426, software option 17)

Cycle run

Touch Probe Cycle 426 measures the position and width of a ridge.

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 The TNC positions the touch probe at rapid traverse (value from

FMAX column) following the positioning logic (See "Executing

touch probe cycles", page 280) to the starting point 1. The TNC

calculates the touch points from the data in the cycle and the

safety clearance from the SET_UP column of the touch probe

table.

2 Then the touch probe moves to the entered measuring height

and runs the first probing process at the probing feed rate

(column F). 1. The first probing is always in the negative

direction of the programmed axis.

3 Then the touch probe moves at clearance height to the next

starting position and probes the second touch point.

4 Finally the TNC returns the touch probe to the clearance height

and saves the actual values and the deviation value in the

following Q parameters:

Parameter number Meaning

Q156 Actual value of measured length

Q157 Actual value of the centerline

Q166 Deviation of the measured length

Please note while programming:

Before a cycle definition you must have programmed

a tool call to define the touch probe axis.

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