245
8.3 Cy
cles f
o
r Dr
illing, T
a
pping and Thr
ead Milling
U
Set-up clearance
Q200 (incremental value): Distance
between tool tip and workpiece surface
U
Workpiece surface coordinate
Q203 (absolute
value): Coordinate of the workpiece surface
U
2nd set-up clearance
Q204 (incremental value):
Coordinate in the tool axis at which no collision
between tool and workpiece (clamping devices) can
occur.
U
Feed rate for plunging
Q206: Traversing speed of
the tool during drilling in mm/min
U
Feed rate for milling
Q207: Traversing speed of the
tool in mm/min while milling.
Example: NC blocks
25 CYCL DEF 264 THREAD DRILLNG/MLLNG
Q335=10 ;NOMINAL DIAMETER
Q239=+1.5 ;PITCH
Q201=-16 ;THREAD DEPTH
Q356=-20 ;TOTAL HOLE DEPTH
Q253=750 ;F PRE-POSITIONING
Q351=+1 ;CLIMB OR UP-CUT
Q202=5 ;PLUNGING DEPTH
Q258=0.2 ;ADVANCED STOP DISTANCE
Q257=5 ;DEPTH FOR CHIP BRKNG
Q256=0:2 ;DIST FOR CHIP BRKNG
Q358=+0 ;DEPTH AT FRONT
Q359=+0 ;OFFSET AT FRONT
Q200=2 ;SET-UP CLEARANCE
Q203=+30 ;SURFACE COORDINATE
Q204=50 ;2ND SET-UP CLEARANCE
Q206=150 ;FEED RATE FOR PLUNGING
Q207=500 ;FEED RATE FOR MILLING
Summary of Contents for TNC 426
Page 3: ......
Page 4: ......
Page 8: ...IV...
Page 10: ...VI...
Page 26: ......
Page 27: ...1 Introduction...
Page 41: ...2 Manual Operation and Setup...
Page 54: ......
Page 55: ...3 Positioning with Manual Data Input MDI...
Page 59: ...4 Programming Fundamentals of NC File Management Programming Aids Pallet Management...
Page 122: ......
Page 123: ...5 Programming Tools...
Page 153: ...6 Programming Programming Contours...
Page 201: ...7 Programming Miscellaneous functions...
Page 226: ......
Page 227: ...8 Programming Cycles...
Page 366: ......
Page 367: ...9 Programming Subprograms and Program Section Repeats...
Page 381: ...10 Programming Q Parameters...
Page 424: ......
Page 425: ...11 Test run and Program Run...
Page 443: ...12 MOD Functions...
Page 472: ......
Page 473: ...13 Tables and Overviews...
Page 496: ......