Adjustment Of The X-Y Contact Pressure; Adjustment Of The X-Y Driving Gear Clearance; Adjustment Of The X Stepping Motor Position - Mitsubishi PLK-E03BT Technical Manual

7-19.

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 the setscrew (2 pieces) (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 the 2-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 adjustment, tighten all setscrews securely.
7-20. Adjustment of X-Y stepping motor position
7-20-1. Adjustment of X stepping motor position
(1) Remove the right cover of the machine bed casting.
(2) Loosen 2 bolts (NO.9) of the assistant plate (NO.8).
(3) Loosen 4 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 4 bolts (NO.11) securely.
(6) Press the assistant plate (NO.8) to "arrow – B" direction lightly.
(7) Fasten 2 bolts securely, and put the cover to the original position.
[NOTE] After 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