Adjustment Of The X-Y Contact Pressure; Adjustment Of The X-Y Driving Gear Clearance; Adjustment Of The X Stepping Motor - Mitsubishi PLK-E0504 Technical Manual

7-20. Adjustment of the X-Y contact pressure

NOTE When take the X-Y table apart or the X-Y table became weak in the joints, adjust the
X-Y table contact pressure. The adjustment should be made the X-Y table movement
as smooth as possible without having play. If the X-Y table contact pressure is too tight,
the over pressure induces the out of control on the X-Y table movement.
(1) Remove the right and left cover of the machine bed casting.
(2) Loosen two setscrews (No.2) so that the X fixed race (No.1) can be moved slightly.
(3) If tighten the both right and left contact presser adjusting screws (No.3), the X table contact
pressure is increased.
(4) Loosen the hexagonal setscrew (NO.4).
(5) Loosen two-setscrews (No.6) so that the Y fixed race (No.5) can be moved slightly.
(6) If tighten the contact pressure adjusting screws (No.7), the Y table contact pressure is increased.
(7) After the adjustment, tighten all setscrews securely.
7-21. Adjustment of X-Y stepping motor position
7-21-1. Adjustment of X stepping motor position
(1) Remove the right cover of the machine bed casting.
(2) Loosen two bolts (NO.9) of the assistant plate (NO.8).
(3) Loosen four bolts (NO.11) of the X-stepping motor adapter (NO.10).
(4) Press the X-stepping motor adapter (NO.10) to "arrow - A" direction lightly.
(5) Fasten four bolts (NO.11) securely.
(6) Press the assistant plate (NO.8) to "arrow - B" direction lightly.
(7) Fasten two bolts securely, and put the cover to the original position.
NOTE After the adjustment, please make sure that there is no gap in the gear mechanism.
1
1 1
7
6
3
2
5 4
B
A
0 1
－ －
34
11
9
8