400
OPTIONS
96-8000
June 1999
11.8 T
APPING
W
ITH
T
HE
VF-S
ERIES
CNC M
ILL
Making tapped holes with the VF Series CNC Mill can be made with several devices. Threads may be gener-
ated with a tap held in a rigid tool holder (called rigid tapping), a floating tap holder, a reversing tapping head, or
helical thread milling. Each method has distinct advantages.
Tapping is done using canned cycles. You must select the tapping RPM and, using the pitch (threads per
inch), calculate the feed rate that is entered in the
F
command. The HELP/CALC page will compute these
numbers for you.
R
IGID
T
APPING
Rigid Tapping eliminates the cost of special tap holders since taps can be held in drill collet holders. The
spindle is accurately synchronized with the Z-axis feed, thereby producing threads as accurately as a lead
screw tapper. No side forces are generated on the flanks of the threads and tighter thread tolerances are
produced. Rigid tapping also eliminates the pullout and distortion of the first thread that occurs on all spring
compression/tension devices and tapping heads. While this is not usually a problem on medium to coarse
threads, small diameter, fine pitch or soft material tapped holes can have their last thread damaged when the
tap pops out of the hole. You can also re-tap a hole without cross-threading provided the tap and
Z
depths have
not been changed. Rigid tapping is used with canned cycles G74 and G84 and is an extra cost factory in-
stalled option. Example:
N100 G84 Z-1. R.3 F37.5 (for a 20 pitch thread at 750 RPM)
A word of caution on Rigid Tapping: As the term implies, the tap is rigidly held in place. This requires that
runout be less than .001 TIR or the tap will generate an oversized thread. This problem can be minimized by
using a small diameter drill extension to provide flex, a radial floating tool holder, or specially-designed chucks
for holding taps, because tap shanks are not common collet sizes.
U
SING
F
LOATING
T
AP
H
OLDERS
Floating tap holders are probably the most common method of tapping holes. The tap is held in a quick change
holder that can float up and down slightly. This is done to allow the tap to follow the hole it is tapping and
compensate for differences in the accel and decel of the spindle versus the feed of the Z-axis. Upon reaching
the bottom of the hole, the feed stops and the spindle reverses, if you watch closely, you will see the tap pull
the floating holder out slightly. Upon reversal, the tap will be pushed back into the holder.
If the holder is pulled out or pushed in to its mechanical limits while tapping, you can break the tap, damage
the threaded part, or pull the tap completely out of the holder. Carefully watch for this condition when setting up
a job because it usually becomes a problem after the job has been running a while. Also tapping of diameters
less than 5/16 of an inch while below 1201 rpm (low gear shift point par 142) should be done in high gear.
Spindle reversal is quicker in high gear and will minimize tap pullout. This is done by putting an M42 code with
the speed command such as: M42 S900. Tapping is done with G74 and G84 cycles which automatically
reverse the spindle at
Z
depth. The feed rate can be calculated by using the HELP display and paging down to
the tapping calculator and inputting your speed and tap pitch into the control to obtain your feed rate that is
then input to the
F
command of the cycle. Example:
N100 G84 Z-1.0 R.3 F46.875 (for 32 pitch tap at 1500 RPM)
Содержание VF Series
Страница 1: ...1 INSTALLATION June 1999 96 8000 INSTALLATION FOR THE VF SERIES MILL ...
Страница 4: ...4 INSTALLATION June 1999 96 8000 MACHINE FOOTPRINTS Dimensions are in inches ...
Страница 5: ...5 INSTALLATION June 1999 96 8000 ...
Страница 6: ...6 INSTALLATION June 1999 96 8000 ...
Страница 20: ...2 0 INSTALLATION June 1999 96 8000 ANCHOR PATTERN VF 0 E 1 2 ...
Страница 21: ...2 1 INSTALLATION June 1999 96 8000 MACHINE FOOTPRINT VF 0 E 1 2 ...
Страница 22: ...2 2 INSTALLATION June 1999 96 8000 ANCHOR PATTERN VF 3 4 ...
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Страница 153: ...96 8000 CUTTER COMPENSATION 153 June 1999 ...
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Страница 270: ...270 SETTINGS June 1999 96 8000 THIS PAGE INTENTIONALLY LEFT BLANK ...
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Страница 332: ...332 ALARMS June 1999 96 8000 THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 416: ...416 OPTIONS 96 8000 June 1999 ...
Страница 433: ...96 8000 433 OPTIONS June 1999 Recovery from an E Stop initiated during a pallet change ...
Страница 435: ...96 8000 435 OPTIONS June 1999 APC DIMENSIONS VF 3 4 WITH APC FOOTPRINT ...
Страница 437: ...96 8000 437 OPTIONS June 1999 APC PALLET CLEARANCES ...
Страница 443: ...TECHNICAL REFERENCE 443 June 1999 96 8000 SIDE MOUNT TOOL CHANGER RECOVERY FLOW CHART ...
Страница 477: ...Assembly Drawings June 1999 477 96 8000 ASSEMBLY DRAWINGS ...
Страница 478: ...Assembly Drawings June 1999 478 96 8000 VF O 1 Base ...
Страница 479: ...Assembly Drawings June 1999 479 96 8000 VF O 1 Column ...
Страница 480: ...Assembly Drawings June 1999 480 96 8000 VF O 1 Saddle ...
Страница 481: ...Assembly Drawings June 1999 481 96 8000 VF 3 Base ...
Страница 482: ...Assembly Drawings June 1999 482 96 8000 VF 3 Column ...
Страница 483: ...Assembly Drawings June 1999 483 96 8000 VF 3 Saddle ...
Страница 484: ...Assembly Drawings June 1999 484 96 8000 VF 6 Base ...
Страница 485: ...Assembly Drawings June 1999 485 96 8000 VF 6 Column ...
Страница 486: ...Assembly Drawings June 1999 486 96 8000 VF 6 Saddle ...
Страница 487: ...Assembly Drawings June 1999 487 96 8000 VF 8 Base ...
Страница 488: ...Assembly Drawings June 1999 488 96 8000 VF 8 Column ...
Страница 489: ...Assembly Drawings June 1999 489 96 8000 VF 8 Saddle ...
Страница 490: ...Assembly Drawings June 1999 490 96 8000 VF 10 Base ...
Страница 491: ...Assembly Drawings June 1999 491 96 8000 VF 10 Column ...
Страница 492: ...Assembly Drawings June 1999 492 96 8000 27 31 31 27 18 42 18 5 12 31 18 45 37 36 45 1 8 28 24 44 13 43 32 VF 10 Column ...
Страница 493: ...Assembly Drawings June 1999 493 96 8000 VF 10 Column ...
Страница 495: ...Assembly Drawings June 1999 495 96 8000 Tool Changer Assembly VF 3 4 ...
Страница 496: ...Assembly Drawings June 1999 496 96 8000 Tool Changer Assembly VF 3 4 ...
Страница 497: ...Assembly Drawings June 1999 497 96 8000 Tool Changer Assembly VF 6 10 ...
Страница 498: ...Assembly Drawings June 1999 498 96 8000 Tool Changer Assembly VF 6 10 ...
Страница 499: ...Assembly Drawings June 1999 499 96 8000 50 Taper Tool Changer Assembly ...
Страница 500: ...Assembly Drawings June 1999 500 96 8000 50 Taper Tool Changer Assembly ...
Страница 501: ...Assembly Drawings June 1999 501 96 8000 20 Pocket Tool Changer VF O 1 2 ...
Страница 502: ...Assembly Drawings June 1999 502 96 8000 20 Pocket Tool Changer VF O 1 2 ...
Страница 504: ...Assembly Drawings June 1999 504 96 8000 32 Tool Carousel Assembly Assembly CT VF 3 10 ...
Страница 505: ...Assembly Drawings June 1999 505 96 8000 50 Taper Carousel Assembly CT VF 6 10 ...
Страница 506: ...Assembly Drawings June 1999 506 96 8000 VF 1 11 Gearbox Assembly 15 HP ...
Страница 507: ...Assembly Drawings June 1999 507 96 8000 VF 1 11 Gearbox Assembly 15 HP ...
Страница 508: ...Assembly Drawings June 1999 508 96 8000 VF 1 11 Gearbox Assembly HT10K ...
Страница 509: ...Assembly Drawings June 1999 509 96 8000 VF 1 11 Gearbox Assembly HT10K ...
Страница 510: ...Assembly Drawings June 1999 510 96 8000 VF 1 11 Gearbox Assembly HT10K TSC ...
Страница 512: ...Assembly Drawings June 1999 512 96 8000 Spindle Assembly 7 5 ...
Страница 513: ...Assembly Drawings June 1999 513 96 8000 Spindle Assembly 7 5K TSCHP ...
Страница 514: ...Assembly Drawings June 1999 514 96 8000 10K Spindle Assembly ...
Страница 515: ...Assembly Drawings June 1999 515 96 8000 10K 12K Spindle Assembly ...
Страница 517: ...Assembly Drawings June 1999 517 96 8000 Spindle Assembly VF0 10K TSCHP ...
Страница 518: ...Assembly Drawings June 1999 518 96 8000 Tool Release Piston Assembly ...
Страница 520: ...Assembly Drawings June 1999 520 96 8000 50 Taper Tool Release Piston ...
Страница 521: ...Assembly Drawings June 1999 521 96 8000 50 Taper Tool Release Piston ...
Страница 522: ...Assembly Drawings June 1999 522 96 8000 TSCHP Tool Release Piston Assembly ...
Страница 523: ...Assembly Drawings June 1999 523 96 8000 TSCHP Tool Release Piston Assembly ...
Страница 524: ...Assembly Drawings June 1999 524 96 8000 32mmBall Screw Assembly ...
Страница 526: ...Assembly Drawings June 1999 526 96 8000 50mm Ball Screw Assembly ...
Страница 527: ...Assembly Drawings June 1999 527 96 8000 30 1215 Coupling Assembly ...
Страница 528: ...Assembly Drawings June 1999 528 96 8000 30 1219 Coupling Assembly ...
Страница 530: ...Assembly Drawings June 1999 530 96 8000 30 1220P Coupling Assembly ...
Страница 531: ...Assembly Drawings June 1999 531 96 8000 30 1225 Coupling Assembly ...
Страница 532: ...Assembly Drawings June 1999 532 96 8000 APC Assembly ...
Страница 533: ...Assembly Drawings June 1999 533 96 8000 APC Assembly ...
Страница 534: ...Assembly Drawings June 1999 534 96 8000 APC Assembly ...
Страница 535: ...Assembly Drawings June 1999 535 96 8000 VR Series Head Assembly ...
Страница 536: ...Assembly Drawings June 1999 536 96 8000 VR Series Head Assembly ...
Страница 537: ...Assembly Drawings June 1999 537 96 8000 VF Series Hydraulic Couterbalance System ...
Страница 538: ...538 ELECTRICAL DIAGRAMS June 1999 96 8000 ELECTRICAL WIRING DIAGRAMS ...
Страница 539: ...539 ELECTRICAL DIAGRAMS June 1999 96 8000 ...
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