HEIDENHAIN TNC 310 (286 140) - Manual (Page 106)

8 Programming: Cycles 94
8.1 General Overview of Cycles
Frequently recurring machining cycles that comprise several
working steps are stored in the TNC memory as standard cycles.
Coordinate transformations and other special cycles are also
provided as standard cycles. The table at right lists the various cycle
groups.
Fixed cycles with number starting with 200 use Q parameters as
transfer parameters. Parameters with specific functions that are
required in several cycles always have the same number: For
example, Q200 is always assigned the setup clearance, Q202 the
plunging depth, etc.
Defining a cycle
ú The soft-key row shows the available groups of
cycles
ú Press the soft key for the desired group of cycles,
for example DRILLING for the drilling cycles
ú Select a cycle, e.g. DRILLING The TNC initiates the
programming dialog and asks all required input
values. At the same time a graphic of the input
parameters is displayed in the right screen
window. The parameter that is asked for in the
dialog prompt is highlighted. Select the screen
layout PROGRAM + HELP GRAPHIC.
ú Enter all parameters asked by the TNC and
conclude each entry with the ENT key
ú The TNC terminates the dialog when all required
data have been entered
Example NC blocks
CYCL DEF 1.0 PECKING
CYCL DEF 1.1 DIST2
CYCL DEF 1.2 DEPTH–30
CYCL DEF 1.3 PLNGNG5
CYCL DEF 1.4 DWELL1
CYCL DEF 1.5 F150
Group of Cycles Soft key
Cycles for pecking, reaming, boring
and tapping
Cycles for milling pockets, studs
and slots
Coordinate transformation cycles
which enable datum shift, rotation,
mirror image, enlarging and reducing
for various contours
Cycles for producing hole patterns,
such as circular or linear patterns
Cycles for face milling of flat or
twisted surfaces
Special cycles such as dwell time,
program call and oriented spindle stop
8.1 Gener
al Inf
or
mation on Cy
cles