4.4. Vice
The hydraulic cylinder between the fixed clamping jaw and the jaw on the moving part of the vice facilitate workpiece clamping. Do
not use the hydraulic cylinder to align long workpieces in the vice! Such operation has to be carried out only manually or by other
means. You can set the clamping force depending on the type of material to be cut on the hydraulic unit using the VICE PRESSURE
CONTROLLER (see section 4.10.1.). The movement of the movable vice ensures the servomotor together with the vice ball screw.
Workpiece clamping procedure:
Raise the arm above the presumed cross-section of the workpiece to be cut. Insert the material between the clamping jaws and align
it parallel to the fixed clamping jaw. Set the movable clamping jaws 3-8 mm from the clamping material (except the ARG 520 DC CF-
NC).
Setting the clamping jaws according to the machine type:
ARG 260 NC Automat -
fixed vice
4.2. Control Valve - Saw Blade Feed to the Cut
The control valve allows for a continuous setting of the velocity of saw blade feed towards the cut or stabilizing the saw arm in any
position by mechanical closing. The optimum value of descent can be determined very easily by ear. The saw blade movement must
be noiseless, free from vibrations. Such a state can be achieved by reducing or increasing the pressure force (by the velocity of saw
arm descent). The prerequisite of setting the optimum pressure is selecting the correct saw blade velocity and the optimum size of
the saw blade teeth.
1
2
3
4
4.3. Saw Blade Feed Pressure Control
This system ensures the coordination of the cutting pressure and the saw blade feed to the cut
in the real time, which is especially useful when cutting section materials. In the event of
cutting of workpieces of larger sections, the cutting channel is extends and the saw blade load
increases. For instance, if cutting the H section, the arm initially descends fast, slows down in
the middle (the cutting channel extends) and after cutting the transverse section, the
resistance decreases and the arm increases its speed again. If the feed rate does not adjust
automatically when cutting such range of sizes, the durability of the saw blade decreases
significantly in the event of a too high feed, or it may lead to a significant increase of the cutting
time in the event of a feed that is too low.
Sensitivity settings
:
The control sensitivity decreases when the control wheel is being screwed in.
1 - maximum sensitivity
4 - control off, the band saw arm always descends with the same velocity preset on the throttle
valve arranged on the control board.
Note: In some machine types, this device is not included in the basic machine version.
hydraulic cylinder of the movable jaw
3 - 8 mm
Use the scroll wheel of the vice to push the movable jaw to the distance of 3-8 mm from the material. The clamping stroke of the
hydraulic cylinder is 15 mm.
vice handwheel
fixed jaw
movable jaw
ACCELERATION
SAW ARM DESCENT
DECELERATION
SAW ARM DESCENT
STOP
SAW ARM DESCENT
