HEIDENHAIN NC 124 - Manual (Page 77)

7 Drilling, Milling Cycles and Hole Patterns in Programs
TNC 124 77
Drilling, Milling Cycles and Hole Patterns in Programs
The cycles for pecking or tapping, hole patterns, and rectangular
pocket milling can also be written to a program (see Chapter 4).
Each piece of information is then stored in a separate program
block. These blocks are identified by CYCL after the block
number, followed by a number.
The cycles contain all information required by the TNC for machin-
ing a hole, hole pattern or rectangular pocket.
The TNC 124 features six different cycles:
Drilling cycles
•
CYCL 1.0 PECKING
• CYCL 2.0 TAPPING
Hole patterns
•
CYCL 5.0 FULL CIRCLE
• CYCL 6.0 CIRCLE SEGMENT
• CYCL 7.0 LINEAR HOLE PATTN
Rectangular pocket milling
•
CYCL 4.0 RECTANGULAR POCKET
Cycles must be complete
Do not delete any blocks from a cycle because this will result in
the error message CYCLE INCOMPLETE when the program is
executed.
Drilling cycles must be called
The TNC runs a drilling cycle whenever it reaches a cycle call
(CYCL CALL) during execution of the program. A cycle call always
calls the drilling cycle that was programmed before the cycle call.
The TNC automatically executes a hole pattern or rectangular
pocket as soon as it reaches it during execution of the program. If
you wish to repeatedly execute hole patterns or rectangular pock-
ets, you must enter the data repeatedly or write them in a
subprogram (see Chapter 8).
Entering cycles
Press the Cycle Def. soft key in the third soft-key row and se-
lect the desired cycle. The TNC automatically asks for all data re-
quired for executing the cycle.
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