HEIDENHAIN TNC 128 (77184x-01) - Manual (Page 380)

380 Fundamentals of cycles
15.6 CAR
TESIAN P
A
T
T
ERN (Cy
c
le
221)
Cycle parameters
 Starting point 1st axis Q225 (absolute): Coordinate
of the starting point in the reference axis of the
machining plane
 Starting point 2nd axis Q226 (absolute): Coordinate
of the starting point in the minor axis of the machining
plane
 Spacing in 1st axis Q237 (incremental): Spacing
between each point on a line
 Spacing in 2nd axis Q238 (incremental): Spacing
between each line
 Number of columns Q242: Number of machining
operations on a line
 Number of lines Q243: Number of lines
 Angle of rotation Q224 (absolute): Angle by which
the entire pattern is rotated. The center of rotation lies
in the starting point
 Set-up clearance Q200 (incremental): Distance
between tool tip and workpiece surface
 Coordinate of workpiece surface Q203 (absolute):
Coordinate of the workpiece surface
 2nd set-up clearance Q204 (incremental): Coordinate
in the spindle axis at which no collision between tool
and workpiece (fixtures) can occur
 Move to clearance height Q301: Definition of how
the tool is to move between machining processes:
0: Move to the set-up clearance between operations
1: Move to the 2nd set-up clearance between
machining operations
Example: NC blocks
54 CYCL DEF 221 CARTESIAN PATTERN
Q225=+15 ;STARTING POINT 1ST AXIS
Q226=+15 ;STARTING POINT 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 ;MOVE TO CLEARANCE
X
Y
Q226
Q225
Q224
Q238
Q237
N = Q242
N = Q243
X
Z
Q200
Q203
Q204