46230809.pdf - 第23页

Page 23 TECHNICAL PUBLICATIONS Dual Rotary Positioning Assembly - BHS T46230809 Rev .C This Document Supports Assembly 46230809 Adjustment Procedure Procedure: 1. Ensure the belt is correctly seated into both pulleys by …

Page 22

TECHNICAL PUBLICATIONS

T46230809 Rev. C Dual Rotary Positioning Assembly - BHS

This Document Supports Assembly 46230809

31. Reposition the rotary disk drive assembly stop plate and secure it in

place with the socket head cap screws. Ensure the rotary disk is cen-

tered in the V-groove of the rotary disk drive assembly drive wheel.

32. Check that the locator pins slide into and out of the locator holes.

33. Remove the locator pins from the rotary table locator holes.

34. Ensure the locking brackets do not extend over the rotary disk then

tighten the button head cap screws securing each locking bracket in po-

sition.

35. Replace any covers and/or assembly components that were removed to

allow access to the guide wheel assemblies.

End of procedure.

X- Y Axes Belt Tension Specification and

Adjustment Procedure

Purpose:

The correct belt tension for the X and Y axis drive is critical to ensure opti-

mal machine performance and long motor life. If the X and Y belts are under

tensioned, the positioning system will not correctly pull into position thereby

decreasing insertion reliability. If the belts are over tensioned, the bearing

life of the motors will be decreased. The X and Y axes have a built in belt

tensioning feature.

Because new belts stretch after approximately 150 hours of machine

operation, the belt tension must be reset after 150 hours of machine

operation.

Specification

The static tension (T) of the belt and the static force (F) required on the motor

to attain this tension is as follows. A built in spring mechanism applies the

required static force (F) to the motor.

T = 17.5 lbs ± 2.5 lbs (78N ± 11N) (per side)

F = 35 lbs ± 5 lbs (156N ± 22N)

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TECHNICAL PUBLICATIONS

Dual Rotary Positioning Assembly - BHS T46230809 Rev.C

This Document Supports Assembly 46230809

Adjustment Procedure

Procedure:

1. Ensure the belt is correctly seated into both pulleys by rotating the pul-

leys several rotations. This can be accomplished by moving the appro-

priate axis by hand.

2. Loosen the motor mounting screws and allow the spring mechanism in

the mounting plate to apply a force against the side of the motor. The

force is applied in the direction shown, away from the lead screw pul-

ley and along the line between the centers of the pulleys.

3. With the force applied, again ensure the belt is correctly seated into

both pulleys by rotating the pulleys several rotations. This can be ac-

complished by moving the appropriate axis by hand.

4. While the spring mechanism maintains the required force against the

side of the motor, tighten the motor mounting screws .

End of procedure.

X-Axis Motor Y-Axis Motor

Motor

Motor Mounting Screws

Motor

Motor Mounting Screws

Page 24

TECHNICAL PUBLICATIONS

T46230809 Rev. C Dual Rotary Positioning Assembly - BHS

This Document Supports Assembly 46230809

X-Y Axes Encoder Adjustments

Purpose:

This procedure ensures that the positioning of the X-Y axis encoder settings

correspond with the position of head 1.

If any of the rotary encoders are misaligned, the head 1 position does not cor-

respond to the pattern program values.

Prerequisite Adjustment:

Rotary Disk Alignment

Special Tools:

Set Up Template (46367805)

Set up tool

(43806307 for jumper wire and large lead tooling)

(43806311 for standard, 5mm and 5.5mm tooling)

(43806312 for 5mm s/l tooling)

Span Adjustment head (47088701)

Head Drive Shaft (47084401)

Adjustment Procedure:

1. Push the STOP button.

2. Palm the machine down as detailed in the Operation Manual, then set

the limit switch actuators to the following set up dimensions.

X-axis: 3/4 inch from the end of the X-frame casting to the end of

the limit switch actuator.

Y-axis: 1/4 inch from the end of the sheetmetal actuator mounting

surface to the edge of the limit switch actuator block.

3. Using the head drive shaft tool, manually position the head tooling on

both insertion heads to the tool safe position to prevent possible dam-

age to the insertion tooling during positioning system movements.

Set Up Tool

Set Up Template