HEIDENHAIN iTNC 530 (340 49x-03) - Manual (Page 472)

472 8 Programming: Cycles
8.8 Cy
cles f
o
r Multipass Milling
3-D DATA (Cycle 30)
1 From the current position, the TNC positions the tool at rapid
traverse FMAX in the tool axis to the set-up clearance above the
MAX point that you have programmed in the cycle.
2 The tool then moves at FMAX in the working plane to the MIN
point you have programmed in the cycle.
3 From this point, the tool advances to the first contour point at the
feed rate for plunging.
4 The TNC subsequently processes all points that are stored in the
digitizing data file at the feed rate for milling. If necessary, the
TNC retracts the tool between machining operations to the set-up
clearance
if specific areas are to be left unmachined.
5 At the end of the cycle, the tool is retracted at FMAX to the set-up
clearance.
8 File name for 3-D data: Enter the name of the
program in which the contour data is stored. If the file
is not stored in the current directory, enter the
complete path.
8 Min. point of range: Lowest coordinates (X, Y and Z
coordinates) in the range to be milled.
8 Max. point of range: Largest coordinates (X, Y and Z
coordinates) in the range to be milled.
8 Set-up clearance 1 (incremental value): Distance
between tool tip and workpiece surface for tool
movements in rapid traverse.
8 Plunging depth 2 (incremental value): Infeed per cut.
8 Feed rate for plunging 3 : Traversing speed of the
tool in mm/min during penetration.
8 Feed rate for milling 4 : Traversing speed of the tool
in mm/min while milling.
8 Miscellaneous function M: Optional entry of a
miscellaneous function, for example M13.
Example: NC blocks
64 CYCL DEF 30.0 RUN 3-D DATA
65 CYCL DEF 30.1 PGM DIGIT.: BSP.H
66 CYCL DEF 30.2 X+0 Y+0 Z-20
67 CYCL DEF 30.3 X+100 Y+100 Z+0
68 CYCL DEF 30.4 SETUP 2
69 CYCL DEF 30.5 PECKG +5 F100
70 CYCL DEF 30.6 F350 M8
4
X
Z
1
2
3
Before programming, note the following:
You can use Cycle 30 to run externally written
conversational programs in several infeed.