25
The set pressure values of pressure switches for air/hydraulic pressure clamp specifications are as
follows:
Clamp check
(SP1, SP3)
2.20 MPa
(176
112
200)
Unclamp check
(SP2, SP4)
0.40 MPa
(176
120
400)
8-6. Solenoid valve for Clamp/Unclamp
In case of NC rotary table made by air hydraulic clamp specifications, the solenoid valve is incorporated.
Since the following piping is used as standard, take care when electric cables are connected.
Refer to outside view and item 23-2.
(Excitation Unclamp Spec.)
Solenoid: ON
･･･
Table Unclamp
Solenoid: OFF
･･･
Table Clamp
(Excitation Clamp Spec.)
Solenoid: ON
･･･
Table Clamp
Solenoid: OFF
･･･
Table Unclamp
In hydraulic clamp specifications, the solenoid valve is not incorporated.
When the solenoid valve is mounted outside of NC rotary table, route
cable at the above specification.
9. Mounting of Workpiece
Mount the workpiece securely to increase accuracy.
If the workpiece is not mounted securely, accuracy becomes not only
worse but also the machine and tools are damaged.
Therefore, take extreme care because it also causes an accident
resulting in injury or death in the worst case.
When the workpiece that flatness and straightness are not obtained is
tightened as is, the workpiece or the rotary table may be distorted, thus
resulting in low accuracy or unevenness rotation. In such case, insert the
shim(s) between the workpiece and the rotary table.
When the workpiece is tightened, fix the workpiece equally and securely
on the rotary table as much as possible.
WARNING
CAUTION
CAUTION
CAUTION
