Holzmann UWS3 Bedienungsanleitung Seite 14

5 OPERATION INSTRUCTION
5.1 The grinding of the edge of engraving milling cutter.
1. Adjust the grinding length of the cutte. Tighten the cutter in the collet. The protruding
length of the cutter should be longer than the needed grinding length. Adjust the cutter
holder in order to align the "0" scale line on the plate with the axial scale line on the cutter
holder's spindle. Meanwhile adjust the cutter holder's axial position on the cutter holder's
spindle, in order to let the outer circular face and the front end of the cutter are 1-2mm
away from the front end of the grinding wheel. Lock and rotate the adjusting screw and let
the cutter protruding to the needed length.
2. Grinding the front face of the cutter: By adjusting the cutter holder and rotating the collet
handle sleeve, the cutter holder could be moved toward the grinding wheel. Thus it could
grind the front surface of the cutter. When first grinding it, the front face of the cutter
should be 0.03mm higher than the center of the grinding wheel.
3. The grinding of the taper angle 20 of the cutter: Set the index pin handle in the short slot
of the dovetail block. Let the index plate could rotate freely. On one hand, feed it slightly
by the handle sleeve; on the other hand continue to rotate the knurling nut clockwise.
Thus the taper angle 20 could be grinded.
4. Grinding the relief angle of the cutter: We need to rotate the swivel base to certain angle
in order to grind the relief angle and the secondary relief angle of the cutter. Take care not
to damage the main cutting edge. It should be 0.01mm(0.0004") away from the main cut-
ting edge.
5. Adjust the eccentric center of the eccentric cutter: Adjust the leading screw rod and align
the scale.
6. We need to grind the back of the cutter after grinding the relief angle. The method is to let
the radius of the back of cutter is a little smaller than the radius of the main cutting edge.
The radius should be decided according to the size of the cutter.
7. Grinding the back of the cutter: First let the axial line of the cutter holder to be vertical to
the grinding wheel's spindle. Thus the index plate and the cutter could rotate by 180o re-
peatedly. Feeding according to the scale indication on the handle, we could avoid damag-
ing the main cutting edge when we grind the needed radius of the back of the cutter.
8. In addition, the cutter could be rotated by any angle to set the position again.
HOLZMANN Maschinen Austria www.holzmann-maschinen.at Seite 14
tool grinding machine UWS3