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3 a u to matic w o rk piece measur ement – HEIDENHAIN TNC 320 (340 55x-03) Touch Probe Cycles User Manual

Page 129

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HEIDENHAIN TNC 320

129

3.3 A

u

to

matic W

o

rk

piece Measur

ement

8

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

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

Setup clearance

Q320 (incremental): Additional

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

8

Clearance height

Q260 (absolute): Coordinate in the

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

8

Nominal length

Q311: Nominal value of the length to

be measured.

8

Maximum dimension

Q288: Maximum permissible

length.

8

Minimum dimension

Q289: Minimum permissible

length.

8

Measuring log

Q281: Definition of whether the TNC is

to create a measuring log:
0: No measuring log
1: Generate measuring log: The TNC saves the log
file TCHPR426.TXT
by default in the directory TNC:\
2: Interrupt the program run and display the
measuring log on the screen. Resume program run
with NC Start.

8

PGM stop if tolerance error

Q309: Definition of

whether in the event of a violation of tolerance limits
the TNC is to interrupt the program run and output an
error message:
0: Do not interrupt program run, no error message
1: Interrupt program run, output an error message

8

Tool number for monitoring

Q330: Definition of

whether the TNC is to monitor the tool (see “Tool
monitoring” on page 108)
0: Monitoring not active
>0: Tool number in the tool table TOOL.T

Example: NC blocks

5 TCH PROBE 426 MEASURE RIDGE WIDTH

Q263=+50

;1ST POINT 1ST AXIS

Q264=+25

;1ST POINT 2ND AXIS

Q265=+50

;2ND POINT 1ST AXIS

Q266=+85

;2ND POINT 2ND AXIS

Q272=2

;MEASURING AXIS

Q261=-5

;MEASURING HEIGHT

Q320=0

;SET-UP CLEARANCE

Q260=+20

;CLEARANCE HEIGHT

Q311=45

;NOMINAL LENGTH

Q288=45

;MAX. LIMIT

Q289=44.95

;MIN. LIMIT

Q281=1

;MEASURING LOG

Q309=0

;PGM STOP IF ERROR

Q330=0

;TOOL NUMBER

X

Z

Q260

Q261

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