HEIDENHAIN TNC 360 User Manual - Manual (Page 155)

TNC 360 8-2
8 Cycles
CYCL
DEF
1 7
ENT
GOTO
ENT
8.1 General Overview of Cycles
Frequently recurring machining sequences which comprise several steps
are stored in the TNC as cycles. Coordinate transformations and other
special functions are also available as cycles.
The cycles are divided into several groups:
• Simple fixed cycles such as pecking and tapping as well as the milling
operations slot milling, circular pocket milling and rectangular pocket
milling.
• SL (Subcontour List) cycles, which allow machining of relatively
complex contours composed of several overlapping subcontours.
• Coordinate transformation cycles which enable datum shift, rotation,
mirror image, enlarging and reducing for various contours.
• Special cycles such as dwell time, program call and oriented spindle
stop.
Programming a cycle
Defining a cycle
Pressing the CYCL DEF key opens the cycle directory. Select the desired
cycle and program it in the dialog. The following example shows how to
define any cycle:
Open the cycle directory.
CYCL DEF 1 PECKING
Select a cycle with the vertical arrow keys (in this example, cycle 17).
Address the desired cycle directly with GOTO.
CYCL DEF 17 RIGID TAPPING
Confirm entry of the selected cycle.
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