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4.3.5 Fixing electrospindles with rectangular framework
The electrospindle should be fixed to the slide or the spindle holder support (if present), using M8
screws and T-slot nuts with a tightening torque of 20Nm. The maximum protrusion allowed for the
fixing screw is 15mm, as shown in
Figure4 .3
; greater protrusions can deform the framework of the
electrospindle and produce incorrect blocking, with negative consequences for the precision of the
machining operation and the safety.
For the correct alignment, use the tang slot between the two T-slots (see section 2).
80
100,5
10
8
16
16,5
Figure4 .2 T-slots for anchoring the
electrospindle
(16)
15
MA
X
1 M
IN
Figure4 .3 Maximum protrusion of the
screw in the T-slot
•
Maximum protrusion of the screw: 15mm.
•
Ensure a gap of at least 1mm.
•
Greater protrusions deform the framework of the electrospindle, compromising the
precision of the machining operation and also the safety.
4.3.6 Fixing electrospindles with round framework
To fix the electrospindles with a round framework, use the eight
ø
8.5 bores on the fixing flange
Figure 4.4 8 bores
ø
8.5
20
9
11
Figure4 .5 Detail of fixing bore
4.3.7 Threaded bores for accessories
To fix any accessories, some threaded bores are available (see the positions in section 2). The
useful thread is 12mm.
