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1 measur ing w o rk piece misalignment – HEIDENHAIN iTNC 530 (340 49x-04) Touch Probe Cycles User Manual

Page 51

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HEIDENHAIN iTNC 530

51

3.1 Measur

ing W

o

rk

piece Misalignment

1st measuring point in 1st axis

Q263 (absolute):

coordinate of the first touch point in the reference
axis of the working plane.

1st measuring point in 2nd axis

Q264 (absolute):

coordinate of the first touch point in the minor axis of
the working plane.

2nd measuring point in 1st axis

Q265 (absolute):

coordinate of the second touch point in the reference
axis of the working plane

2nd measuring point in 2nd axis

Q266 (absolute):

coordinate of the second touch point in the minor axis
of the working plane

Measuring axis

Q272: Axis in the working plane in

which the measurement is to be made:
1: Reference axis = measuring axis
2: Minor axis = measuring axis

Traverse direction 1

Q267: Direction in which the

probe is to approach the workpiece:
-1: Negative traverse direction
+1: Positive traverse direction

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.

Setup clearance

Q320 (incremental): Additional

distance between measuring point and ball tip. Q320
is added to MP6140.

Clearance height

Q260 (absolute): Coordinate in the

touch probe axis at which no collision between tool
and workpiece (fixtures) can occur.

Traversing to clearance height

Q301: Definition of

how the touch probe is to move between the
measuring points:
0: Move at measuring height between measuring
points
1: Move at clearance height between measuring
points

Default setting for basic rotation

Q307

(absolute): If the misalignment is to be measured
against a straight line other than the reference axis,
enter the angle of this reference line. The TNC will
then calculate the difference between the value
measured and the angle of the reference line for the
basic rotation.

Preset number in table

Q305: Enter the preset

number in the table in which the TNC is to save the
determined basic rotation. If you enter Q305=0, the
TNC automatically places the determined basic
rotation in the ROT menu of the Manual mode of
operation.

Example: NC blocks

5 TCH PROBE 400 BASIC ROTATION

Q263=+10

;1ST POINT 1ST AXIS

Q264=+3.5

;1ST POINT 2ND AXIS

Q265=+25

;2ND POINT 1ST AXIS

Q266=+2

;2ND POINT 2ND AXIS

Q272=2

;MEASURING AXIS

Q267=+1

;TRAVERSE DIRECTION

Q261=-5

;MEASURING HEIGHT

Q320=0

;SET-UP CLEARANCE

Q260=+20

;CLEARANCE HEIGHT

Q301=0

;MOVE TO CLEARANCE

Q307=0

;PRESET BASIC ROTATION

Q305=0

;NO. IN TABLE

X

Y

Q266
Q264

Q263

Q272=1

Q265

Q272=2

+

–

–

+

Q267

MP6140

+

Q320