Dukane SVB031, Руководство пользователя

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Spin Welder User’s Manual Section 7 – Operational Setup
Page 55
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Dukane Manual Part Number 403-547-03 Dukane Manual Part Number 403-547-03
Press the Emergency OFF button again. If you ad-
justed the bottom stop for more stroke than needed,
turn the bottom stop knob clockwise to reduce the
stroke (lower the flag) until it backs up against the
mechanical limit. Repeat this process until you
have achieved the desired stroke and bottom stop
settings.
Start–Of–Weld
The Start–Of–Weld trigger occurs 0.50” (12.7mm)
above the bottom stop setting. After this point, the
Spin Welder process is in cycle and the digital timer
starts. Prior to this point, if the palm activation
switches are released, the tool hub will retract, and
the process will reset. After this point, the process
will complete automatically.
End–Of–Weld
The End–Of–Weld optical switch triggers 0.005”
(0.127mm) above the bottom stop setting to allow
for system momentum. If you are in a weld by dis-
tance mode, this marks the end of the weld cycle, and
terminates the process. The End–Of–Weld switch
has no effect on a weld by time operation.
Pneumatic Adjustments
Front Regulator
The front panel regulator (see Figure 6–5) controls
the amount of air pressure applied to the 3” air cylin-
der which in turn determines the force applied to the
weld joint. The boost factor of the air cylinder is cal-
culated by the ratio of cylinder area to the area used
for standard atmospheric pressure measurements. A
3” diameter cylinder has an area of 7.07 sq. inches so
its boost is simply 7x the applied pressure in pounds
per sq. inch. A setting of 40 psi gives a downward
force of 280 lbs. If the joint contact area is 0.5 sq.
inch then the parts will have an applied pressure of
560 psi (280 lbs per 0.5 sq inch). A schematic of the
pneumatic system is shown in Figure 7–6.