HEIDENHAIN TNC 426 B User Manual

8 Programming: Cycles
180
ú
Set-up clearance Q200 (incremental value): Distance
between tool tip and workpiece surface.
ú
Depth Q201 (incremental value): Distance between
workpiece surface and bottom of slot
ú
Feed rate for milling Q207: Traversing speed of the
tool in mm/min while milling.
ú
Plunging depth Q202 (incremental value): Total extent
by which the tool is fed in the tool axis during a
reciprocating movement.
ú
Machining operation (0/1/2) Q215:
Define the extent of machining:
0: Roughing and finishing
1: Roughing only
2: Finishing only
ú
Workpiece SURFACE COORDINATE Q203 (absolute
value): Coordinate of the workpiece surface
ú
2nd set-up clearance Q204 (incremental value): Z
coordinate at which no collision between tool and
workpiece (clamping devices) can occur.
ú
Center in 1st axis Q216 (absolute value): Center of the
slot in the main axis of the working plane
ú
Center in 2nd axis Q217 (absolute value): Center of the
slot in the secondary axis of the working plane
ú
First side length Q218 (value parallel to the main axis
of the working plane): Enter the length of the slot
ú
Second side length Q219 (value parallel to the
secondary axis of the working plane): Enter the slot
width. If you enter a slot width that equals the tool
diameter, the TNC will carry out the roughing process
only (slot milling).
ú
Angle of rotation Q224 (absolute value): Angle by
which the entire slot is rotated. The center of rotation
lies in the center of the slot.
8.3 Cycle for Milling Pockets, Studs and Slots
X
Z
Q200
Q201
Q207
Q202
Q203
Q204
X
Y
Q219
Q218
Q217
Q216
Q224
Example NC blocks:
51 CYCL DEF 210 SLOT RECIP. PLNG
Q200=2 ;SET-UP CLEARANCE
Q201=-20 ;DEPTH
Q207=500 ;FEED RATE FOR MILLING
Q202=5 ;PLUNGING DEPTH
Q215=0 ;MACHINING OPERATION
Q203=+0 ;SURFACE COORDINATE
Q204=50 ;2. SET-UP CLEARANCE
Q216=+50 ;CENTER IN 1ST AXIS
Q217=+50 ;CENTER IN 2ND AXIS
Q218=80 ;1ST SIDE LENGTH
Q219=12 ;2ND SIDE LENGTH
Q224=+15 ;ANGLE OF ROTATION
kkap8.pm6 30.06.2006, 07:03180
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HEIDENHAIN TNC 426 B Specifications

General

Brand	HEIDENHAIN
Model	TNC 426 B
Category	Control Systems
Language	English