Georges Renault CVIS II, Руководство оператора

Страница: 54 / 76

6159932410-02
English
54 / 76
TIGHTENING STRATEGIES
AND min. angle
≤
angle
≤
max. angle
10 - ANGLE CONTROLLED UNTIGHTENING
In addition to monitoring the untightening of the fastener, the system monitors the number of degrees reached while maintaining
a residual torque in the fastener.
The control phase starts
IF torque > breakaway torque
The recorded values are the following: final torque and final angle
Spindle stop
IF
torque
≤
target torque
OR torque > safety torque
OR angle > max. angle
Accept report
IF
torque < safety torque
AND min. torque
≤
final torque
≤
max. torque
AND min. angle
≤
final angle
≤
max. angle
11 - ANGLE + TORQUE CONTROLLED UNTIGHTENING
The recorded values are the following: final torque and final angle.
Spindle stop
IF angle
≥
target angle
OR torque > safety torque
Accept report
IF torque < safety torque
AND min. torque
≤
final torque
≤
max. torque
AND min. angle
≤
final angle
≤
max. angle
f i n a l a n g l e
1 0 0
2 0 0
3 0 0
4 0 0
5 0 0
6 0 0
7 0 0
7 5 0
8 0 0
5 0
1 0 0
1 5 0
2 0 0
2 5 0
1 0
5 0
1 0 0
1 5 0
To
rq
ue
(N
m
)
A
ng
le
(d
g)
To
rq
ue
ra
te
(m
ill
iN
m
/d
g)
p l a s t i c z o n e
b e y o n d
y i e l d p o i n t
1 s t s a m p l e
o f 1 6 o r 3 2 d e g r e e s
A n g l e
t h r e s h o l d
M a x i t o r q u e r a t e
R e f e r e n c e t o r q u e r a t e
M i n i t o r q u e r a t e
T i m e
f i n a l t o r q u e
0.
2
0.
4
0.
6
0.
8
1.
0
1.
2
1.
4
1.
6
1.
8 2
2.
2
2.
4
t a r g e t t o r q u e r a t e
=
p r o g r a m m e d %
o f r e f e r e n c e
t o r q u e r a t e
e . g . : 7 0 %
a n g l e a n d
t o r q u e
t o l e r a n c e s
T i m e
To
rq
ue
T a r g e t a n g l e
A n g l e
t h r e s h o l d
S a f e t y t o r q u e
F i n a l a n g l e
F i n a l t o r q u e