Cg 3
1.4
Circular Grinding of Cutters
--
Grinding the Back Rake Angle of End Cutting Edges (Straight)
so
4:.
/1
'I
Nta 1 Profile
Fig. 1
The end cutting edge illustrated in Fig. 1 may be ground
in an operation immediately following the grinding of the
side cutting edge; or it may be ground independently. In
the latter case the cutter will have to be aligned by means
of gouge F and clomped in position. Whenever a single-
lip cutter is to be ground, the aligning gauge will have to
be used, as one leg of the cutting angle is formed by the
cutting lip surface. The back rake angle should be selected
to suit the material to be cut (see page 7).
Setup Operations
1.
Engage index pin R into central hale; bring red dot
into window U.
2.
Release clomping lever K2; using setting scale T2, set
swivel arm at approx. 3
0
; tighten clamping lever K2.
3.
Release clamping levers K3 and K4; hold index drum T4
against stop and, beginning at
90a.positian,
set swivel
arm at desired angle; for example set arm at 75
0
for
back rake angle of 15
0
(see Figs. 2 and 3). Tighten clomp-
ing levers K3 and K4.
4.
Tighten clamping lever K; release lever K1; shift work
Fixture an tubular guide to bring cutter into light contact
with grinding wheel. Align index mark of vertical swivel
mount with reference line an tubular guide; tighten
clamping lever K1 ; release lever K.
Grinding the Back Rake Angle
5.
Fine adjustment screw F serves to set the index head
laterally relative to the wheel and to set the work for
the desired depth of cut. - It is also possible to produce
the desired bock rake by holding the cutter against the
circumference of the grinding wheel as is shown in Fig. 4.
110
FEINMECHANIK GmbH - Weilheim/Obb - LIZENZ DECKEL
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