Units - Predrilling In Y Axis; Icp Predrilling, Contour Milling, Xy Plane Unit - HEIDENHAIN CNC PILOT 640 User Manual

smart.Turn units for the Y axis | Units – Predrilling in Y axis
3.2 Units – Predrilling in Y axis

ICP predrilling, contour milling, XY plane unit

The unit determines the hole position and machines the hole.
The subsequent milling cycle obtains the hole position from the
reference stored in NF. If the milling contour consists of multiple
sections, the unit machines a hole for each section.
Unit name: DRILL_STI_840_Y / cycles: G840 A1; G71
"G840 – calculating hole positions",
Further information:
Page 417
Further information: "Simple drilling G71", Page 373
Contour form:
FK: ICP contour number
NS: Starting block no. of contour – beginning of contour
section
NE: Contour end block no. – end of contour section
Z1: Upper edge of milling
P2: Depth of contour
Cycle form:
JK: Cutter position
0: On the contour
1: Within/left of contour
2: Outside/right of contour
3: Depending on H and MD
H: Mill cutting direction
0: Up-cut
1: Climb
I: Contour-parallel oversize
K: Infeed-direction oversize
R: Approach radius
WB: Milling diameter
NF: Position mark – reference at which the cycle stores the
hole positions (range: 1 to 127)
E: Period of dwell at end of hole (default: 0)
D: Retraction type
0: Rapid traverse
1: Feed rate
V: Feed reduction
0: Without reduction
1: At end of the hole
2: At start of the hole
3: At start & end of hole
AB: Drilling lengths (default: 0)
RB: Return plane (default: back to start position)
HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
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