Dressing Grindstones ( Wa And Gc Type); Using The Anti-Rotation Bar - Nakanishi PLANET600 Series Operation Manual

12.

DRESSING GRINDSTONES ( WA AND GC TYPE)

<When using Grindstone with a center hole (shankless), always dress the stone>
CAUTION
The grindstone's center-core is runout before dressing. Be sure to dressing the grindstone
before grinding work.
① Mount the grindstone that will be used for Jig Grinding in the Air Turbine Spindle.
② Install the Air Turbine Spindle into the main spindle of the Milling Machine.
③ Rotate the Air Turbine Spindle to a rotation speed of approximately 30,000 - 40,000min
Place dressing tool near the grindstone at an approximate angle of 8 - 18 degrees.
④ Gradually move the diamond dresser tool until it lightly comes in contact with the grindstone.
⑤ Dress the grindstone by moving the main spindle of the milling machine up and down.
⑥ Gradually move the diamond dresser tool toward the grindstone until outer circumference of the
grindstone is completely uniform and free of vibration and run-out.
13.

USING THE ANTI-ROTATION BAR

Use the Anti-Rotation Bar (Included) and Block (Not Included) for your safety. Should the main spindle
be accidentally rotated, the Anti-Rotation System will prevent tangling of the supply air / oil hose.
① Thread the Anti-Rotation Bar 1 (male thread)
into the Anti-Rotation Bar 2 (female thread)
(Fig. 10).
② Thread the Anti-Rotation Bar into the Outward
Rotation Ring of the Air Turbine Spindle before
use. Refer to Fig. 11.
28
Diamond Tool
Fig. 9
Anti-Rotation Bar 1
(male thread)
-1
8 - 18°
Tighten
Anti-Rotation Bar 2
(female thread)
Fig. 10
(rpm).