SPANNTOP [nova] – Safety
For calculation of Fq see section 2.10.5.4
Fq
=
F
B
=
0,45
∗
D
B
∗
f
n
∗
k c
2.10.5.2 For principle 2: Ft ≤ Ftmax
Tailstock force
Due to the additional spreading force on the chuck,
the max. permissible tailstock force is limited to the
following values in accordance with the chuck size:
Chuck size
Ftmax / [kN]
32
3
42
6
52
6
65
8
80
8
100
8
125
8
140
8
160
8
Table 7: Maximum permissible tailstock force
2.10.5.3 For principle 3: Fc ≤ Fc max
The cutting force for turning operations can take on
extremely high values, particularly with short projecti-
on lengths of the workpiece, although fundamentally
processing without slip or levering out of the clamping
set-up would still be possible. Consequently, this cut-
ting force must also be limited in accordance with
chuck size, to avoid chuck damage.
15 With use of a tailstock, by using an end-stop in the chuck, it must be ensured that the workpiece can-
not be axially displaced.
31
Содержание SPANNTOP NOVA
Страница 1: ...Installation manual SPANNTOP nova combi pull back combi deadlength modular...
Страница 44: ...SPANNTOP nova Technical data 3 2 1 Clamping force diagram size 32 Fig 5 44 Order hotline 49 7144 907 333...
Страница 45: ...SPANNTOP nova Technical data 3 2 2 Clamping force diagram size 42 52 Fig 6 Order hotline 49 7144 907 333 45...
Страница 46: ...SPANNTOP nova Technical data 3 2 3 Clamping force diagram size 65 80 Fig 7 46 Order hotline 49 7144 907 333...
Страница 47: ...SPANNTOP nova Technical data 3 2 4 Clamping force diagram size 100 125 Fig 8 Order hotline 49 7144 907 333 47...
Страница 48: ...SPANNTOP nova Technical data 3 2 5 Clamping force diagram size 140 160 Fig 9 48 Order hotline 49 7144 907 333...
Страница 110: ...SPANNTOP nova Appendix 110 Order hotline 49 7144 907 333...