Drilling Cycles; General Information - Siemens SINUMERIK User Manual

Recompiling
Recompiling of program codes serves to make modifications to an existing program using the cycle support.
12.4

Drilling cycles

12.4.1

General information

Drilling cycles are motional sequences specified according to DIN 66025 for drilling, boring, tapping, etc.
They are called in the form of a subroutine with a defined name and a parameter list.
They all follow a different technological procedure and are therefore parameterized differently.
The drilling cycles can be modally effective, i.e. they are executed at the end of each block which contains motion
commands.
There are two types of parameters:
● Geometrical parameters
● Machining parameters
The geometrical parameters are identical with all drilling cycles. They define the reference and retraction planes, the safety
clearance and the absolute or relative final drilling depth. Geometrical parameters are assigned once during the first drilling
cycle CYCLE82.
The machining parameters have a different meaning and effect in the individual cycles. They are therefore programmed in
each cycle separately.
Programming and Operating Manual (Turning)
01/2017
3. Enter the values directly (numerical values) or indirectly (R parameters, for example, R27,
or expressions consisting of R parameters, for example, R27 + 10).
If numerical values are entered, the control system will automatically perform a check to see
whether the value lies within the permitted range.
4. Use this key to select values for some parameters that may have only a few values for se-
lection.
5. For drilling cycles, it is also possible to call a cycle modally with this key. To deselect the
modal call, move the cursor to the next blank line of the program and press the softkey
below:
6. Press this softkey to confirm your input. To cancel the input, press the softkey below:
Position the cursor on the program line for the cycle to be modified and press this softkey. This
reopens the input screen of parameter assignment for the cycle, and you can modify and accept the
parameter values.
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