Southern Machinery provides professional SMT peripheral equipment
Feeder Return Stroke Stop Adjustment
1.Power down the machine and perform Lockout/Tagout according to local procedures.
2.Remove the feeder from the machine.
3.Loosen the mounting block locking set screw. Turn the set screw in until it just bottoms out, but do not tighten.
4.Use a flat blade screwdriver to turn the mounting block to be parallel with the housing as shown.
5.Tighten the locking set screw. Verify that the mounting block remains parallel to the housing. If needed, repeat adjustment until correct.
6.Loosen the eccentric locking set screw. Turn the set screw in until it just bottoms out, but do not tighten.
7.Rotate the eccentric to increase the clearance between anti-back-up dog and the ratchet wheel.
8.Place a 0,05 mm (0.002 in.) feeler gauge or shim stock between the anti-back-up dog and the ratchet wheel.
9.Rotate the eccentric adjustment screw until the shim stock can not be easily removed from between the anti-back-up dog and the ratchet wheel.
10.Loosen the eccentric until there is a slight drag.
11.Tighten the set screw after the correct clearance has been set.
12.Connect the air to the feeder and cycle the feeder observing the function of the anti-back-up dog.
13.If the anti-back-up dog fails to drop into position on any tooth, repeat the procedure and adjust the anti-back-up dog to the tooth where it did not correctly drop into position.14.Install the feeder on the machine.
End of Procedure
Refire Assembly Adjustment
To ensure that components with small lead diameters will be accurately sensed while maintaining the ability to detect missing components, the overlap of the refire housing to the component support must be set.
Prerequisites:
Machine main power is on, machine is palmed down. To adjust the feeder refire assembly, perform the following procedure.
1.Loosen the refire housing screws. Adjust the refire housing until the refire contact is flush to within .010 inch (0,25mm) overlap with the edge of the component support section of the cutter holder. Refer to the illustration.
2.Loosen the screws and alternately adjust the position of the feeder cover and the refire housing until the results described in step 1 are achieved. Ensure that all screws are tight when the setup is completed.
End of procedure.
Align Feeder To Carrier Clip
This adjustment positions the feeder on the sequencer module so the pusher aligns with the carrier clip.
When properly aligned, the component's leads contact the clamps on the carrier clip forcing them open at the same time. This action puts equal force on both leads and prevents the component from twisting as it is being loaded
into the carrier clip.
If the feeder is not correctly aligned to the carrier clip, the clip fails to center to the pusher when it extends.
Prerequisite Adjustments:
Carrier Clip Alignment to the Cutter Station
Carrier Clip Alignment To Component Transfer Upper Guide
Feeder Preliminary Forward Stroke Adjustment
Machine is powered on and the interlock bypass key switch is turned to the ON position
Special Tools:
Feeler Gauge Setup Tool
To align the feeder to the carrier clip, perform the following procedure.
1.Remove the component carrying cardboard strip from around the feed
wheel.
2.Using IM Diagnostics, zero the chain.
3.Using the Manual Diagnostics window, turn off the main air dump
valve.
4.Manually push the main driver forward as far as it will go.
5.Insert the .030 inch (0.76mm) feeler gauge setup tool where illustrated and check the clearance.
When properly aligned, the feeler gauge is touching both surfaces and
the carrier clip is displaced as far as it will go to the left.
If adjustment is necessary, loosen the socket head cap screw, which holds the feeder on the sequencer, and push the dispenser to the left until the correct alignment is obtained.
6.After making the adjustment, retighten the socket head cap screw and withdraw the feeler gauge setup tool.
7.Using the Manual Diagnostics window, turn the main air dump back on.
8.Ensure that the main driver retracts and is clear of the chain clip.
9.Verify that the carrier clips, after being displaced to the left by the pusher, return fully to the right after the pusher retracts.
10.After completing the alignment of all feeders, zero the chain again.
11.Refer to step 5 and verify that the alignment of the feeders is correct. If needed, repeat the entire procedure again to obtain the proper adjustment.
End of procedure
Feed Wheel Adjustment
This adjustment positions the feed wheel on its shaft so that the first
component is centered in front of the pushers when the feed wheel is
indexed.
If the feed wheel is not adjusted properly, the component will not be
centered. If it is offset too far, the tabs on the upper pusher could hit the
leads when the component is loaded into the carrier clip. This may cause the
leads to back up or break the carrier clip.
There is also a danger that the cutters will cut through the leads to the
component instead of through the center of the holes in the cardboard strip.
This would cause excessive wear on the cutters.
Prerequisites:
Forward Stroke Adjustment
Return Stroke Stop Adjustment
Anti Back Up Dog Adjustment
Machine is powered up
Special Tools:
Pitch Wheel Tool
To adjust the feed wheel, perform the following procedure.
1.If necessary, load components into the feeder and index the feed wheel
until the first component is in front of the driver.
2.Palm the machine down and manually push the main driver forward
until the component carrying cardboard strip stops the cutter.
3.Check to see if the leads are centered in the notches of the upper
pusher.
4.If the leads are not centered in the notches, loosen the two socket head
cap screws which hold the clamp plate to the feed wheel as shown in
the illustration.
6.While holding the feed wheel in place with the pitch wheel tool,
alternately tighten the cap screws.
End of procedure
Cutter Adjustment
The purpose of this procedure is to adjust the cutter block to the left or right
so that the component carrying cardboard strip is sheared cleanly and with a
minimum of resistance.
If the clearance between cutters is too small, the blades will interfere with
each other and bind. If the clearance is too large, the edge of the cardboard
bends and tears rather than cutting. The clearance also has an affect on the
amount of force required to cut the cardboard and consequently the speed of
the forward stroke.
Prerequisites:
Feeder Preliminary Forward Stroke Adjustment
Driver Clearance Adjustment
1.Power down the machine and perform Lockout/Tagout according to local procedures.
2.If necessary, remove the component carrying cardboard strip from the feeder.
3.Remove the feeder from the machine.
4.Using the pin (p/n 30535802) supplied, manually push the main driver forward until the cutting edges of the cutters are engaged.
5.Using a feeler gauge, check the clearance between the cutter blades as illustrated. If .0015 inch (0,038mm) clearance exists, no adjustment is
required. Ensure the cutters are parallel and the clearance is consistent the full length of the cutters. If adjustment is required, continue with step 5.
6.Loosen the 2 hex head machine screws that secure the cutter holder.
7.Loosen the adjusting screw and pull the cutter block out so the clearance is too large. To apply some pressure to the cutter holder,
tighten the 2 cutter holder screws until the split lock washers just start to collapse. Slowly turn the adjusting screw in until the proper
clearance is attained.
8.Tighten the cutter holder mounting screws.
End of procedure
Driver Clearance Adjustment
This adjustment prevents excessive lateral movement or binding between the
driver and housing. This adjustment may be performed with the feeder either
on the machine or removed from the machine and placed on a work surface.
Prerequisites:
Feeder Preliminary Forward Stroke Adjustment
To adjust the driver clearance, perform the following procedure.
1.Power down the machine and perform Lockout/Tagout according to local procedures.
2.Remove the feeder cover.
3.Extend the forward stroke until the cutters are approximately flush as shown. Insert a .001 inch (0.02 mm) feeler gauge between the driver
and the feeder housing as illustrated.
4.Remove the set screw. Apply Loctite 222 to the set screw, and adjust the set screw until the gap between the driver and housing is .001 inch
(0,02mm), as shown in the illustration. Do not overtighten or the feeler gauge will be difficult to remove.
End of procedure
Preliminary Forward Stroke Adjustment
Adjustment of the forward stroke will ensure that the sequencer chain clip
can secure the component from the feeder without being damaged.
This adjustment should be performed on a workbench with an outside air
supply of 80 psi available.
To adjust the forward stroke, use the following procedure.
1.Power down the machine and perform Lockout/Tagout according to
local procedures.
2.Remove the feeder from the machine and place on a suitable work surface.
3.Apply air pressure to the feeder and measure the distance between the front of the machined housing and the front of the dispenser driver.
4.If the dimension is .656 inch (16,66 mm) as shown in the illustration, no adjustment is required. If not, continue with step 5.
5.Retract the driver. Loosen the hex jam nut on the shaft of the pneumatic cylinder and thread the shaft into or out of the driver block as necessary.
6.Check the dimension and repeat step 4 until the proper dimension is achieved.
7.Tighten the hex jam nut.
End of procedure
Insert Axis Setup Procedure
The purpose of this procedure is to adjust the position of the eccentric on the
insert drive motor shaft and the position of the push rod in the upper link.
The encoder count values for the insert head guide jaw kick out and retracted
positions will also be determined. Failure to properly perform this procedure
causes poor insertion performance and could result in damage to the insert
head and head drive assemblies.
Prerequisites:
Theta and Vertical Axes Setup Procedures completed
Theta axis enabled and zeroed
Run IM Diagnostics Quickstart > Critical Axis Positions
Special Tools:
Setup Pin Tool
Procedure:
1.Loosen the locking screw in the push rod coupler. Adjust the push rod
by rotating it until the end of the push rod extends above the push rod
coupler 4 threads. Do not tighten the locking screw.
2.Ensure that the Head Theta axis is enabled. In the Head Vertical window, on the Full Up (R) line, click on Go To
3.In the Head Vertical window, on the Down 0 (R) line, click on Go To
.This drives the vertical axis down to the maximum board thickness position.
4.Loosen the eccentric locking screw. In the Head Insert window, click on Zero . The motor slowly rotates until the encoder reaches the home pulse. This is the zero position.
5.Rotate the eccentric so that the setup pin can be inserted into the holes in the eccentric and link https://onhealthy.net arm, aligning the two parts.
6.Lock the eccentric to the motor shaft by tightening the eccentric locking screw, and remove and store the setup pin. This completes the adjustment of the eccentric.
7.In the Head Insert window, on the Insert Extend (R) line, click on Go To
. This Drives the head insert servo to the maximum thickness board kickout position (-4000 counts).
8.Adjust the push rod so that there is 0.5 mm +/- 0.025 mm (.020 in. +/-.001 in.) clearance between the insert head block and the insert head stop. Lock the push rod by torquing the push rod locking screw to 16 in-lb. (It is helpful to push down on the housing where indicated while making this adjustment.)
9.In the Head Insert window, click on Disable . Orient the eccentric so that it points toward the rear of the machine.
10. In the Head Vertica window, on the Full Up (0) line, click on Go To
. This drives the vertical axis to the full up position.
11.Rotate the eccentric clockwise (facing the motor shaft) until it stops, applying only enough pressure to hold it against the stop – do not force it. In the Head Insert window, on the Retracted (R) line, click on Set.
12.Click on Exit, Save these Positions
.
End of procedure
.
Head Theta Axis Setup Procedure
Prerequisites:
The machine must be palmed down (E-Stop switch is pushed down).
Special Tools:
Head/Clinch Alignment Tool
BEC Alignment Tool Assembly
Comments:
Once the Head Theta Axis is set up for the 0 degree position, the +90 and -90
positions are automatically calculated by the controller.
Procedure:
1.Manually position the vertical axis flag (set screw) so that it is approximately 25,4 mm (1 in.) from the upper limit switch (sensor).
2.Select IM Diagnostics > Machine Setup > Critical Axis Positions
.
3.Close doors, release the E-Stop switch (palm up), and engage the interlocks.
4.In Machine Setup select Set Up Critical Axis Positions
.
5.In the Head Theta window, click on Zero The servo slowly drives the axis counter clockwise, as viewed from the top, to the limit switch. The theta axis then drives clockwise to the first encoder home pulse.
6.Push the E-Stop switch http://alwaysvaltrexonline.com down (palm down), disengage interlocks, and open doors.
7.Locate and attach the BEC alignment template on the insertion machine table. Attach the head alignment tool to the head drive assembly. Manually position the X/Y table so that the alignment
template edge is beneath the alignment tool. Rotate theta to approximate 0.
8.Manually lower the head. Pull the table forward until the template edge is flush with the alignment tool locating the head at 0 degrees. In the Head Theta window, on the At 0 (R) line,
click on Set to record the theta encoder count as the zero degree count.
9.Manually raise the insertion head approximately 25,4 mm (1 in.) above the BEC alignment template and remove the alignment tooling.
10.On the main screen, click on Exit, Save these Positions
.
End of procedure
Installation Of The Insertion Head Assembly
To install the insertion head assembly, proceed as follows.
1.Power down the machine and perform Lockout/Tagout according to local procedures.
2.Align the assembly from the back of the insertion head driver assembly and install the pusher onto the bottom of the main shaft.
3.Close the shaft clamp (1).
4.Install the tooling pin (2) and secure it with the set screw (3).
5.Tighten the socket set screw (4).
6.Tighten the hex jam nut (5).
End of procedure
Removal and Disassembly of the Head Drive
Perform the following procedure to disassemble the head drive assembly.
Prerequisites:
Drawing of the Radial Insertion Head Assembly
Electrical Wires Disconnected
Insertion Head Tooling has been removed
Comments:
This procedure assumes that the head drive assembly is being disassembled
to replace the drive mechanism.
To rebuild this assembly, reference the reassembly procedure found in this
module.
If possible, it is more efficient to remove the motors and bearings from the
assembly with the casting secured to the machine.
Procedure:
1.Power down the machine and perform Lockout/Tagout according to
local procedures.
2.Use a clamp to secure the head drive assembly, and remove the 4
mounting bolts. Lift the head drive assembly from the machine.
3.To replace the drive mechanism, first loosen the socket head cap screw
and remove the threaded locking collar clamp from the top of the drive
mechanism shaft. This allows the separation of the bearing assembly
from the top of the drive mechanism.
4.Loosen the screw in the push rod clamp and unscrew the push rod. This
allows the bearing assembly to completely separate from the drive
mechanism.
5.Remove the push rod from the drive mechanism.
6.Remove the ball bushing from the top of the drive mechanism.
7.Loosen the four mounting bolts on the brushless DC motor and push
the motor toward the head assembly, removing the tension from the
timing belt. Remove the belt.
8.Remove the bumper, then remove the theta pulley from the top of the
drive mechanism.
9.Remove the stop ring from the top of the drive mechanism.
10.Loosen the four bolts securing the vertical drive motor and tighten the
1/4 – 20 SHCS jacking screw.
11.Remove the timing belt from the vertical drive pulley on the vertical
drive motor and the bottom of the drive mechanism.
12.Turn the 1/4 – 20 SHCS jacking screw counter clockwise. This releases
the pressure on the compression spring.
13.Remove the vertical pulley from the bottom of the drive mechanism.
14.Remove the grease seal block.
15.Remove the 4 bolts from the bottom of the drive mechanism.
16.Carefully separate the ends of the drive mechanism and remove the
drive mechanism from the casting.
17.Reference the assembly procedures to reassemble this assembly.
End of procedure.
