HEIDENHAIN TNC 426 (280 476) User Manual
Page 309
282
8 Programming: Cycles
8.5 Cy
cles f
o
r Mac
h
ining Hole P
a
tt
er
ns
7
7
7
7
Starting point 1st axis
Q225 (absolute value):
Coordinate of the starting point in the reference axis
of the working plane
7
7
7
7
Starting point 2nd axis
Q226 (absolute value):
Coordinate of the starting point in the minor axis of
the working plane
7
7
7
7
Spacing in 1st axis
Q237 (incremental value):
Spacing between the individual points on a line
7
7
7
7
Spacing in 2nd axis
Q238 (incremental value):
Spacing between the individual lines
7
7
7
7
Number of columns
Q242: Number of machining
operations on a line
7
7
7
7
Number of lines
Q243: Number of passes
7
7
7
7
Angle of rotation
Q224 (absolute value): Angle by
which the entire pattern is rotated. The center of
rotation lies in the starting point.
7
7
7
7
Set-up clearance
Q200 (incremental value): Distance
between tool tip and workpiece surface
7
7
7
7
Workpiece surface coordinate
Q203 (absolute
value): Coordinate of the workpiece surface
7
7
7
7
2nd set-up clearance
Q204 (incremental value):
Coordinate in the tool axis at which no collision
between tool and workpiece (clamping devices) can
occur.
7
7
7
7
Traversing to clearance height
Q301: Definition of
how the tool is to move between machining
processes:
0: Move to set-up clearance
1: Move to 2nd set-up clearance between the
measuring points.
Example: NC blocks
54 CYCL DEF 221 CARTESIAN PATTRN
Q225=+15 ;STARTNG PNT 1ST AXIS
Q226=+15 ;STARTNG PNT 2ND AXIS
Q237=+10 ;SPACING IN 1ST AXIS
Q238=+8 ;SPACING IN 2ND AXIS
Q242=6 ;NUMBER OF COLUMNS
Q243=4 ;NUMBER OF LINES
Q224=+15 ;ANGLE OF ROTATION
Q200=2 ;SET-UP CLEARANCE
Q203=+30 ;SURFACE COORDINATE
Q204=50 ;2ND SET-UP CLEARANCE
Q301=1 ;TRAVERSE TO CLEARANCE HEIGHT