Makino V55, Руководство по обслуживанию

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6.5.1 Clamp/Unclamp Mechanism
During unclamp – (
Figure 6-8
) the
unclamp solenoid SOL01 (Y01.0)
is energized porting hydraulic oil
to the top of the unclamp cylinder
[1] and piston [2] moves (down-
ward) advancing the entire draw
bar assembly. As the draw bar
assembly advances, the disk
springs [9] compress and the col-
let fingers [4] move into a recess
in sleeve [3]. The collet fingers [4]
open, releasing the retention knob
[8].
Spindle unclamp is confirmed by
LS01 (X00.1)
Tool Knock-out occurs at the end
of stroke pushing the tool [6] out of
the spindle taper [7]. Tool knock-
out = 1.5 to 1.8mm (0.06 to 0.07")
During clamp– the unclamp sole-
noid SOL01 (Y01.0) is de-ener-
gized, exhausting hydraulic oil
from the top of the cylinder [1].
Piston [2] retracts, by the force of
the disk springs [9] and the draw
bar and collet fingers [4] return to
their normal clamped state.
During retract, the collet fingers [4]
move out of the sleeve recess [3]
and grip tool holder retention knob
[8] which seats against the sealing
rod [5].
Spindle clamp is confirmed by
LS00 (X00.0)
During ATC operations, taper cleaning air SOL09 (Y01.0) is energized
during unclamp. This air blast purges contaminates from the spindle taper
and tool holder shank. During spindle clamp operations SOL09 (Y01.0) is
de-energized.
F
IGURE
6-8
CLAMP
/
UNCLAMP MECHANISM