HEIDENHAIN TNC 640 (34059x-01) Cycle programming - Manual (Page 142)

142 Fixed Cycles: Pocket Milling / Stud Milling / Slot Milling
5.4 SL
O
T
MILLING (Cy
c
le 253, DIN/ISO: G253)
U Set-up clearance Q200 (incremental): Distance
between tool tip and workpiece surface. Input range
0 to 99999.9999
U Workpiece surface coordinate Q203 (absolute):
Absolute coordinate of the workpiece surface. Input
range -99999.9999 to 99999.9999
U 2nd set-up clearance Q204 (incremental): Coordinate
in the spindle axis at which no collision between tool
and workpiece (fixtures) can occur. Input range 0 to
99999.9999
U Plunging strategy Q366: Type of plunging strategy:
„ 0 = Vertical plunging. In the tool table, the plunging
angle ANGLE for the active tool must be defined as 0
or 90. The TNC will otherwise display an error
message.
„ 1, 2 = Reciprocating plunge. In the tool table, the
plunging angle ANGLE for the active tool must be
defined as not equal to 0. The TNC will otherwise
display an error message.
U Feed rate for finishing Q385: Traversing speed of
the tool during side and floor finishing in mm/min.
Input range 0 to 99999.9999; alternatively FAUTO, FU,
FZ
Example: NC blocks
8 CYCL DEF 253 SLOT MILLING
Q215=0 ;MACHINING OPERATION
Q218=80 ;SLOT LENGTH
Q219=12 ;SLOT WIDTH
Q368=0.2 ;ALLOWANCE FOR SIDE
Q374=+0 ;ANGLE OF ROTATION
Q367=0 ;SLOT POSITION
Q207=500 ;FEED RATE FOR MILLING
Q351=+1 ;CLIMB OR UP-CUT
Q201=–20 ;DEPTH
Q202=5 ;PLUNGING DEPTH
Q369=0.1 ;ALLOWANCE FOR FLOOR
Q206=150 ;FEED RATE FOR PLNGNG
Q338=5 ;INFEED FOR FINISHING
Q200=2 ;SET-UP CLEARANCE
Q203=+0 ;SURFACE COORDINATE
Q204=50 ;2ND SET-UP CLEARANCE
Q366=1 ;PLUNGE
Q385=500 ;FEED RATE FOR FINISHING
9 L X+50 Y+50 R0 FMAX M3 M99
X
Z
Q200
Q204
Q203
Q369
Q368