HEIDENHAIN TNC 122 User Manual - Manual (Page 39)

5 Programming
TNC 122 39
Y
X
30°
R20
50
50
0
0
Mode of operation: PROGRAMMING AND EDITING
Hole patterns in programs
The BOLT HOLE CIRCLE and LINEAR PATTERN cycles can
also be entered in a part program and saved for repeated execu-
tion. Each item of information then comprises its own program
block.
These blocks are introduced by a block with a block number, fol-
lowed by the word CYCL and the name of the cycle. The cycles
contain all information required by the TNC for machining a hole
pattern.
The TNC executes a hole pattern automatically as soon as it
reaches the cycle in the program.
Cycles must be complete
Do not delete any blocks from the cycle. If you do, it will provoke
the error message CYCLE INCOMPLETE when the program is
executed.
Entering cycles
Press the SPEC FCT key and select the desired cycle. The TNC
automatically asks for all data required to execute the cycle.
Bolt hole circle
Programming example: FULL CIRCLE cycle
Number of holes NO.HL : 8
Center point coordinates: CENT X = 50 mm
CENT Y = 50 mm
Bolt hole circle radius RADIUS : 20 mm
Starting angle between X axis
and first hole ANGLE :
30°
Drilling depth DEPTH : – 8 mm
SPEC
FCT
Press the SPEC FCT key for special functions.
Page to the BOLT HOLE CIRCLE function. Repeatedly
Select the BOLT HOLE CIRCLE function.
B O L T H O L E C I R C L E
ENT
Select FULL CIRCLE
F U L L C I R C L E
ENT