Doosan DBC 130 II, Installation Manual

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DBC 130II DBC130II ISE41
13. Assembling and adjusting the Y axis
13.1 Installing the ball screw nut in the Y axis
1) Take the Y-axis ball screw nut by hand and lower the Y axis slowly in "-" direction in
Handle mode until it arrives on the installation site on the spindle head.
2) Tighten the fixing bolts (6-BB10×35) on the ball screw nut.
▪
Tighten the bolts loosely at this moment because they should be fixed after the Y-axis
gib is adjusted properly.
3) Raise the Y axis a bit slowly and remove the support under the spindle head.
13.2 Installing the Y-axis taper gib and back plate gib
1) Loosen the bolts on the reference gib in the
front and lower of the spindle head.
2) Loosen the set-screw (BQ bolt) of the gib-
adjusting bolts completely.
3) Slowly tighten the BB bolt (one of the gib
adjusting bolts) at first. Then tighten it up when
you feel that the gib gets tightened. (this is
where the gap between gib and column sliding
side becomes "0")
4) Then, loosen the bolt (BB bolt) by a half turn (180
˚).
5) Tighten back the set-screw (BQ bolt) and pull out the gib as much as you have loosened
the BB bolt (180
˚).
6) Adjust the upper and lower gibs as well as the other gibs in the same way.
▪
It is recommended to adjust the back plate gib just after performing the clamping of the
Y axis.
※
To check the adjustment of the taper gib
Install the indicator on the spindle head and present the gauge to the grinding side
of the column or to the square on the table deck. While raising or lowering the Y
axis, measure the shaking distance. (For the X axis, you can measure the shaking
distance by repeating the Y-axis clamping and unclamping, alternatively)
☞
Shaking Target: below 0.004 mm
Gib Fixing
Bolts (x2)
Set Screw