YAMAHA-YG系列 换螺杆指导书.pdf - 第6页

Service Engineer Service I nformati on SI080 2008 E-000 = YG series: Replacement proc edure for ball screws of each axis 6/65  When remov ing the ball screw of YG88R an d YG100R 1) Remove the cover of the ball screw con…

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Service Engineer
Service Information
SI0802008E-000= YG series: Replacement procedure for ball screws of each axis
5/65
1. Remove the bolts that secure the SLEEVE BRG.
When removing the ball screw of YGD,YG88, YG100, YG200(L) and YG300 machines
1) Remove the four bolts (M5*14) that secure the SLEEVE BRG.
(YG88,YG100, YG200(L) and YG300:No.15 / YGD: No.37 in Figure 1).
Figure 2
2) Remove the fixing bolts that secure the DAMPER with a hex wrench (Size 3) and remove the
DAMPER.
3) Remove the bolts to fix the COVER, BRG with a hex wrench (Size 3) and remove the
COVER, BRG.
4) Remove the SLEEVE, BRG.
* When the SLEEVE, BRG cannot be removed because of the cable duct, remove the bolts
that secure the stay plate and move the plate to the position where the SLEEVE, BRG can be
removed.
.
Figure 3
Sleeve BRG
Four bolts for fixing
the SLEEVE BTG
Bolts for fixing the
SLEEVE, BRG
(Qty:4)
SLEEVE, BRG
Square nut
BRG, ANGULAR
HOLDER, BRG X
Nut bearing (SCREW BALL X AXIS)
BOLT HEX, SOCKET HEAD
DAMPER
Bolts for fixing the
DAMPER(Qty:2)
DAMPER
Bolts for fixing the COVER, BRG (Qty:4)
COVER, BRG
Service Engineer
Service Information
SI0802008E-000= YG series: Replacement procedure for ball screws of each axis
6/65
When removing the ball screw of YG88R and YG100R
1) Remove the cover of the ball screw consists of three pieces (in the middle and the both
side/COVER, X AXIS) with a screwdriver.
2) Remove the three bolts that secure the DAMPER to remove it from the near side.
3) Remove the four bolts that secure the SLEEVE, BRG, then loosen the SCREW, FLAT
HEAD for the SPACER, BRG SET to move the SLEEVE, BRG to the right.
Figure 4
DAMPER
SLEEVE, BRG
The detent bolt for the
SPACER, BRG SET
Service Engineer
Service Information
SI0802008E-000= YG series: Replacement procedure for ball screws of each axis
7/65
* The following procedures are common to all the models.
2. Remove the four bolts (M5*16 / BOLT HEX, SOCKET HEAD/ See No.26 in Figure 1) of the screw
nut mounted at the center of the ball screw.
Figure 5
3. Remove the four bolts (M4*14) of the SUPPORT UNIT (See No.20 in Figure 1).
4. Loosen the two bolts at the slotted part (on the screw side) of the coupling (See No.2 in Figure 1).
Figure 6
5. Remove the SUPPOT UNIT (No.20 in Figure 1) from the ball screw, then remove the ball screw
from the X-axis frame.
Grease nipple
Fixing bolts (Qty: 4)
Ball screw of X-axis
HOLDER, HEAD
X-axis motor
Hex wrench
(Size 3)
Coupling
X-axis ball screw