Special Index Head
Locating Fixture for Cutter Spindle Assembly
A special index head is available for receiving cylindrical-shank cutters of " or 1" diameter or M.T. 1, ML 2,
or M.T. 3 taper shankcutters.
Except for cylindrical-shank cutters of I" diameter, which are mounted direct in the index head, a clamping
sleeve or taper sleeve (5), respectively, is interposed for locating the cutters. The head is provided with 2
hexagon socket screws at the front and 2 at the rear (i) for clamping the cutters as required.
The locating fixture for the spindle assembly permits
regrinding of single-lip cutters while held in the
Locatinp
cutter spindle of the milling machine. For this pur-
fixture
pose, remove the index head slide from its bracket
assembly
after loosening screw Do and clamp Ko and insert
the locating fixture into the V-guide of the index
Do head bracket. For grinding operations insert the
spindle assembly with cutter into the locating fixture
and clamp firmly. The index pin engages the notches
provided on the card pulley of the spindle assembly.
Exchanging the index heads may cause on eccentricity which should be determined as follows: -
Set the scale of the cross slide at zero, mount an qrbor"o on the standard index head and bring the arbor
into light contact with the grinding wheel.
-
Now exchange index heads and, depending on the type of sleeve used, mount on arbor "A" on the special
index head. (The some procedure applies if the locating fixture for the cutter spindle assembly ii mounted
instead of the standard index head.)
Again adjust the cross slide until arbor "A" is in light contact with the grinding wheel.
The value which is read above or below dimension "X (see formula below) on the scale of the cross slide is
the desired amount of eccentricity. It must be taken into account for all settings mod"e with the special index
head or the locating fixture.
A-a
Dimension X =
.
18
FEINMECHANIK GmbH Weilheirn/Obb - LIZENZ DECKEL
I
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