Working on the machine tool
Fixing and adjustment of cutters
5
5-3
15doc030910
Working on the machine tool
Instrument PUNA- 3 (for edging machine) for cutter adjustment.
Fig.6
The correct setting of knives (B) in the cutter shaft determines the correct operation of the
machine tool. The operation is possible by use of the instrument PUNA- 3.
Preparation procedure
The instrument with dial indicator (3) fixed in handle (4) is put on a flat surface (for instance,
laying out plate or edging machine table). The foot of indictor should be level with the edge of
self-aligning plate (2). We fix that position by turning the external scaled ring to the value ‘’0’’. The
instrument thus prepared is ready to serve as a base for adjustment of knives (B) in the cutter
shaft (A).
Adjustment procedure
The instrument should be placed on the outfeed table of the edging machine which is the refer-
ence base. Shifting the instrument move plate (2) on the set knife (B) so that it sits on it.
Turning cutter shaft (A) to the left and right the knife edge will move on the pate (2) edge causing
the indicator (3) pointer to deflect.
Adjust the knife excess so that dial indicator (3) points finally to the value ‘’0’’. After having
checked the knife’s excess at three points (at two extremes and in the middle) and confirmed the
correct setting we tighten all screws (C) and start adjustment of the next knife.
B
C
D
A
2
4
3
1
receiving
table
1 - base
2 - small plate
3 - dial indicator
4 - indicator grip
A - cutter shaft
B - knife
C - screw
D - spring
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