Heidenhain TNC 320 (340 55x-03) Touch Probe Cycles User Manual download pdf (Page 110)

110

3.3 Automatic Workpiece Measurement

REFERENCE PLANE (touch probe cycle 0,

DIN/ISO: G55)

1 The touch probe moves at rapid traverse (value from FMAX

column) to the starting position 1 programmed in the cycle.

2 Then the touch probe runs the probing process at the probing feed

rate (column F). The probing direction is to be defined in the cycle.

3 After the TNC has saved the position, the probe retracts to the

starting point and saves the measured coordinate in a Q

parameter. The TNC also stores the coordinates of the touch probe

position at the time of the triggering signal in the parameters Q115

to Q119. For the values in these parameters the TNC does not

account for the stylus length and radius.

8 Parameter number for result: Enter the number of

the Q parameter to which you want to assign the

coordinate.

8 Probing axis/Probing direction: Enter the probing

axis with the axis selection keys or ASCII keyboard

and the algebraic sign for the probing direction.

Confirm your entry with the ENT key.

8 Position value: Use the axis selection keys or the

ASCII keyboard to enter all coordinates of the nominal

pre-positioning point values for the touch probe.

8 To conclude the input, press the ENT key.

Before programming, note the following

Pre-position the touch probe in order to avoid a collision

when the programmed pre-positioning point is

approached.

Example: NC blocks

67 TCH PROBE 0.0 REF. PLANE Q5 X-

68 TCH PROBE 0.1 X+5 Y+0 Z-5

1 2 ... 105 106 107 108 109 110 111 112 113 114 115 ... 164 165

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Heidenhain TNC 320 (340 55x-03) Touch Probe Cycles User Manual Page 110