Heidenhain TNC 320 (340 55x-03) Touch Probe Cycles User Manual download pdf (Page 113)

HEIDENHAIN TNC 320 113

3.3 Automatic Workpiece Measurement

8 Traverse direction 1 Q267: Direction in which the

probe is to approach the workpiece:

-1: Negative traverse direction

+1: Positive traverse direction

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 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

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

TCHPR420.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.

If touch probe axis = measuring axis, then:

Set Q263 equal to Q265 if the angle about the A axis is to

be measured; Set Q263 not equal to Q265 if the angle is

to be measured about the B axis.

Example: NC blocks

5 TCH PROBE 420 MEASURE ANGLE

Q263=+10 ;1ST POINT 1ST AXIS

Q264=+10 ;1ST POINT 2ND AXIS

Q265=+15 ;2ND POINT 1ST AXIS

Q266=+95 ;2ND POINT 2ND AXIS

Q272=1 ;MEASURING AXIS

Q267=-1 ;TRAVERSE DIRECTION

Q261=-5 ;MEASURING HEIGHT

Q320=0 ;SET-UP CLEARANCE

Q260=+10 ;CLEARANCE HEIGHT

Q301=1 ;MOVE TO CLEARANCE

Q281=1 ;MEASURING LOG

1 2 ... 108 109 110 111 112 113 114 115 116 117 118 ... 164 165

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