Heidenhain TNC 320 (340 55x-03) Touch Probe Cycles User Manual download pdf (Page 92)

3.2 Presetting automatically

8 Center of 1st axis Q273 (absolute): Bolt hole circle

center (nominal value) in the reference axis of the

working plane.

8 Center in 2nd axis Q274 (absolute): Bolt hole circle

center (nominal value) in the minor axis of the working

plane.

8 Nominal diameter Q262: Enter the approximate bolt

hole circle diameter. The smaller the hole diameter,

the more exact the nominal diameter must be.

8 Angle of 1st hole Q291 (absolute): Polar coordinate

angle of the first hole center in the working plane.

8 Angle of 2nd hole Q292 (absolute): Polar coordinate

angle of the second hole center in the working plane.

8 Angle of 3rd hole Q293 (absolute): Polar coordinate

angle of the third hole center in the working plane.

8 Measuring height in the touch probe axis Q261

(absolute): Coordinate of the ball tip center (= touch

point) in the touch probe axis in which the

measurement is to be made.

8 Clearance height Q260 (absolute): Coordinate in the

touch probe axis at which no collision between tool

and workpiece (fixtures) can occur.

8 Datum number in table Q305: Enter the number in the

datum or preset table in which the TNC is to save the

coordinates of the bolt-hole circle center. If you enter

Q305=0, the TNC automatically sets the display so

that the new datum is on the bolt hole center.

8 New datum for reference axis Q331 (absolute):

Coordinate in the reference axis at which the TNC

should set the bolt-hole center.

Basic setting = 0

8 New datum for minor axis Q332 (absolute):

Coordinate in the minor axis at which the TNC should

set the bolt-hole center.

Basic setting = 0

Q274

Q273

Q262

Q291

Q293

Q292

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Heidenhain TNC 320 (340 55x-03) Touch Probe Cycles User Manual Page 92