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3 a u to matic w o rk piece measur ement – HEIDENHAIN TNC 426B (280 472) Touch Probe Cycles User Manual

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98

3 Touch Probe Cycles for Automatic Workpiece Inspection

3.3 A

u

to

matic W

o

rk

piece Measur

ement

U

U

U

U

First measuring point in the 1st axis

Q263

(absolute): coordinate of the first touch point in the
reference axis of the working plane.

U

U

U

U

First measuring point in the 2nd axis

Q264

(absolute): coordinate of the first touch point in the
minor axis of the working plane.

U

U

U

U

First measuring point in the 3rd axis

Q294

(absolute): coordinate of the first touch point in the
touch probe axis.

U

U

U

U

Second measuring point in the 1st axis

Q265

(absolute): coordinate of the second touch point in the
reference axis of the working plane

U

U

U

U

Second measuring point in the 2nd axis

Q266

(absolute): coordinate of the second touch point in the
minor axis of the working plane

U

U

U

U

Second measuring point in the 3rd axis

Q295

(absolute): coordinate of the second touch point in the
touch probe axis.

U

U

U

U

3rd measuring point in 1st axis

Q296 (absolute):

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

U

U

U

U

3rd measuring point in 2nd axis

Q297 (absolute):

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

U

U

U

U

Third measuring point in the 3rd axis

Q298

(absolute): coordinate of the third touch point in the
touch probe axis.

U

U

U

U

Setup clearance

Q320 (incremental): additional

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

U

U

U

U

Clearance height

Q260 (absolute): coordinate in the

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

U

U

U

U

Measuring log

Q281: definition of whether the TNC is

to create a measuring log:
0: No measuring log
1: Generate measuring log: with the standard setting
the TNC saves the log file TCHPR431.TXT in the
directory in which your measuring program is also
stored.

Example: NC blocks

5 TCH PROBE 431 MEASURE PLANE

Q263=+20 ;1ST POINT 1ST AXIS

Q264=+20 ;1ST POINT 2ND AXIS

Q294=-10 ;1ST POINT 3RD AXIS

Q265=+50 ;2ND POINT 1ST AXIS

Q266=+80 ;2ND POINT 2ND AXIS

Q295=+0 ;2ND POINT 3RD AXIS

Q296=+90 ;3RD POINT 1ST AXIS

Q297=+35 ;3RD POINT 2ND AXIS

Q298=+12 ;3RD POINT 3RD AXIS

Q320=0 ;SET-UP CLEARANCE

Q260=+5 ;CLEARANCE HEIGHT

Q281=1 ;MEASURING LOG