Kyocera - Основной каталог 2011-2012 ENG
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3. Center Height Adjustment
a) No core remains / Core with Excessively Small Diameter
This happens when the Inner Insert is set above the Center Height.
In this case, adjustment is necessary since insert breakage will be probable at the center of
the drill. (Fig.7)
Fig.7 Insert breakage near the center of the drill
[How to Adjust] Initial Installation 180°Rotation Improved Position
(Inner insert positioned of Inner Insert
Install the drill rotated 180°.
Most problems will be solved by this method. higher than normal) Center of
(Fig.8) Spindle
MXa-acxhiIsinnoenfetrheInsert
Center of
Spindle
Inner Insert
Inner Center of Drill
Insert
If the core diameter becomes too large after the Center of Drill Fig•.•8 Inner
above adjustment, install the drill by rotating 90° Zooming near the center Insert
counter-clockwise as shown in Fig.9 (outer insert
is positioned lower) and adjust the center height Zooming near the center
by moving the tool in the X-axis direction.
(However, this makes it impossible to adjust Center of Spindle Higher CebnyteMr oHveinigghtthAedTjuosotlment
the cutting diameter)
Caution: In case of installing the drill in the Inner Insert
reverse direction (outer insert is positioned
above), the cutting diameter will become small- 90°Rotation MXa-cahxiinseof the Lower
er, which may cause the drill body to interfere
with the drilled hole. 90° K
The best solution is to readjust the center posi- 90°
tion of the turret itself. Inner Insert
Center of Drill Outer Insert Drilling
Inner Fr ig.9
Insert
Zooming near the center
Inner Insert positioned too far below center
b) Core with excessively large diameter (More than 1mm)
This occurs when the inner insert is excessively below the center.
This condition causes poor chip evacuation and an adjustment is required.
[How to Adjust] Inner insert is Higher CebnyteMroHveinigghtthAedTjuosotlment
positioned excessively
Install the drill rotating 90° as shown in Fig.10. 90° Rotation Outer Insert Lower
(outer insert is positioned on the upper side) and below the center. MXa-cahxiinseof the
adjust the center height by moving tool in the X- Outer Insert
axis direction. MXa-cahxiinseof the
(However, this makes it impossible to adjust the
cutting diameter) Inner Insert
Caution: When installing the drill in the opposite
direction (outer insert is positioned lower), the Inner Insert
cutting diameter will become smaller, which may
cause the drill body to interfere with the drilled Fig•.1•0
hole.
The best solution is to readjust the center position
of the turret itself.
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