46230809.pdf - 第35页
Page 35 TECHNICAL PUBLICATIONS Dual Rotary Positioning Assembly - BHS T46230809 Rev .C This Document Supports Assembly 46230809 13. Push the START push button again to activate the rotary tables. 14. As the rotary table …
Page 34
TECHNICAL P UBLICATIONS
T46230809 Rev. C Dual Rotary Positioning Assembly - BHS
This Document Supports Assembly 46230809
Rotary Disk Slow Down Adjustments
Purpose:
This adjustment ensures that the rotary disk decelerates before contacting the
lock assembly and fully engages the lock assembly without excessive force.
The rotary disk slow down switch assembly is actuated by the stop blocks on
the rotary disk. When a stop block contacts the ball actuator on the slow
down assembly, air flow to the drive assembly is reduced slowing the speed
of the rotary tables.
Correct rotary disk slow down assembly adjustment increases reliability and
longevity of the lock assembly.
Adjustment Procedure:
1. Loosen the screws securing the slow down sensor mounting bracket.
2. Adjust the slow down assembly sensor mounting bracket as far away
from the lock assembly as possible. Ensure the ball actuator is in line
with a stop block.
3. Adjust the ball actuator so the stop blocks on the rotary table fully actu-
ate the ball but do not deflect the slow down assembly or the mounting
bracket.
4. Manually rotate the rotary table so the stop blocks actuate the slow
down sensor, while adjusting the front/back position of the sensor.
5. Tighten the hex head screws to secure the slow down sensor bracket in
position.
6. Adjust the slow down needle valve clockwise until it is closed.
7. Adjust the drive motor flow control valve counterclockwise until it is
open.
8. Create a dummy rotary disk drive pattern, refer to the IM-UPS Refer-
ence Manual. The pattern must include four index steps with 9.0 x 9.0
inch (2286,0 x 2286,0 mm) X and Y values, a bypassed insertion step
and a bypassed park step.
9. Load and activate the rotary disk drive pattern.
10. In the IM-UPS Machine Status window, select the following. Display
Status>Operation Status
The Operations Mode screen is displayed.
11. In the Head On box, deselect the Head 1 and Head 2 check boxes..
12. Push the START push button to zero the machine.
Page 35
TECHNICAL PUBLICATIONS
Dual Rotary Positioning Assembly - BHS T46230809 Rev.C
This Document Supports Assembly 46230809
13. Push the START push button again to activate the rotary tables.
14. As the rotary table indexes, slowly turn the needle valve (NV1 or
NV1A) to achieve a condition in which the rotary disk stop block
firmly enters the lock assembly without causing a banging sound.
15. Push the STOP push button to stop the rotary table indexing.
16. Loosen the lock screw on the air flow control valve on the drive assem-
bly.
17. Adjust the air flow control valve fully clockwise and then two full turns
counterclockwise.
18. As the disk rotates, adjust the flow control valve so the disk movement
is quick but the stop blocks do not strike the lock assembly with exces-
sive force. The rotary disc should rotate ninety degrees in approxi-
mately one second with both discs set at the same speed.
It may be necessary to adjust the pneumatic slow down needle valve to
achieve this adjustment.
19. Tighten the lock screw on the flow control valve to secure the valve in
position.
20. Push the STOP push button.
End of procedure.
Page 36
TECHNICAL P UBLICATIONS
T46230809 Rev. C Dual Rotary Positioning Assembly - BHS
This Document Supports Assembly 46230809
Advanced Support Information
The following corrective maintenance procedures are intended for
Universal Instruments Corporation Field Service Engineers only.
Unauthorized implementation of these procedures may result in damage
to the machine and may adversely affect your warranty status if
performed by other than UIC personnel.
The advanced support information procedures are those identified on the
maintenance concept table as requiring a minimum skill level of UIC Field
Service Engineer. All such procedures may or may not be present in this
document at this time.
Y Axis Bearing Replacement Procedure
Purpose:
This procedure is presented because of the need to properly seat the duplex
bearing for the Y axis lead screw support.
The Y axis lead screw support bearing is installed at the factory and
should not require removal. If a bearing should fail and need
replacement, the following procedure should be performed by a
qualified Field Service Engineer using the proper tools.
Special Tools:
Torque Wrench (47145501)
Bearing Assembly Tool (47492101)
Spanner Wrench (47492401)
Special Wrench (46860901)
BEARING ASSEMBLY TOOL
Outer Race Support
(47513801)
Pilot
(47513601)
Puller Support
(47513701)
Bolt
(47513901
Nut
(80015003)
Washer
(80018809)