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Rad 5 performance: bent lead

Rad 5 performance: bent lead

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Hi, any idea what can cause 5% intermittent right component ... - Jul 02, 2019 by daniel_marquette

I forget which type of CTA that machine has so I probably wo... - Jul 08, 2019 by Steve Thomas

Steve, all the worn carrier clips (chipped, spring less or d... - Jul 08, 2019 by daniel_marquette

My recollection is that there is a carrier clip locator that... - Jul 08, 2019 by Steve Thomas

Would you happen to have the Jig used to check that the comp... - Jul 08, 2019 by Assured-Tech

I would check the clearance between the bottom guide and the... - Jul 09, 2019 by Don Burshnick

Watch the air pressure gauge and make sure you have a good s... - Jul 09, 2019 by Stephen

Yeah, I struggled at stabilizing it so for now it's ok. It's... - Jul 09, 2019 by daniel_marquette

Good, I came to the same conclusion after recent tests. ... - Jul 09, 2019 by daniel_marquette

Unfortunately, I don't get the Jig but the component is alwa... - Jul 09, 2019 by daniel_marquette

That's a great point about air consumption, don't reduce the... - Jul 09, 2019 by Assured-Tech

Have you checked the bearing on the linear slide bearing on ... - Jul 09, 2019 by Don Burshnick

Ok, just got what we needed, thanks again all for your help.... - Jul 16, 2019 by daniel_marquette

C'mon, man, spill...what was it? ;) ... - Jul 16, 2019 by Steve Thomas

Had to adjust more finely the timing on the soft push and th... - Jul 22, 2019 by daniel_marquette

Thanks for adding that, Daniel! It always helps the rest of... - Jul 22, 2019 by Steve Thomas

daniel_marquette

#82945

Rad 5 performance: bent lead | 2 July, 2019

Hi, any idea what can cause 5% intermittent right component lead being bent during CTA transfer to the forks? Yet, everything is line up on these 2.5 mm lead span components.

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Steve Thomas

#82966

Rad 5 performance: bent lead | 8 July, 2019

I forget which type of CTA that machine has so I probably won't be much help. It's been ages since I worked on them but it doesn't look like you'll find many people that have.

That said, usually if you get things aligned properly and it still bends leads or misses the head it's because something is worn out and won't hold alignment during transfer.

It could also be a carrier clip problem.

When you turn off the air and manually cycle the CTA forward and backward, does it push the parts out of the clip and then return them properly?

If you could post a slow-mo video of a failed transfer that would be a big help, but I realize that's not that easy to do. Even just a picture of the CTA might jog my memory a little.

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daniel_marquette

#82969

Rad 5 performance: bent lead | 8 July, 2019

Steve, all the worn carrier clips (chipped, spring less or damages, etc.)have been changed for working ones. Alignment has been performed to loser and afterward thighter tolerances than the manual recommend to see if it changes anything (no). I checked the stroke and played with it to be sure the transfer works: it does every time manually without air or in single cycle mode but still fails 5% of the time at full speed.

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Steve Thomas

#82970

Rad 5 performance: bent lead | 8 July, 2019

My recollection is that there is a carrier clip locator that positions (centers) the clip in front of the CTA. Has the adjustment on that been confirmed as well?

(Edited because some of it's coming back to me!): I think there is a diamond shaped pin that centers the head at the home position. If that's worn it can have problems transferring.

Also, the carrier clips get worn where the clip locator slides past. Not sure if you checked that as well but it's worth mentioning. When that wears they won't get centered properly.

The only other thing I can think of is wear on the head clamping jaws or the part that the jaws clamp the leads on to. I can't remember exactly what any of that is actually called.

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Assured-Tech

#82971

Rad 5 performance: bent lead | 8 July, 2019

Would you happen to have the Jig used to check that the component itself is in spec with UIC's general specifications? 1.) Component in spec. 2.) Correct 2.5mm pusher on the feeder / dispense head. Also set the conditioner guide where the comp enters the feeder. 3.) Correct alignment of the feeder to the carrier clip. 4.) Correct chain tension and timing (should have been step 2 or 1). 5.) Cutter station alignment and blades. 6.) Bottom component guide height as it starts to enter the inserter just after the cutting station. 7.) CTA alignments (apx 15 different adjustments). 8.) Jaws and springs for the Jaws on the insertion head. One thing that stumped me in the past over a very intermittent CTA issue was needing to change cylinder for the CTA return stroke assist (I can't recall the exact name) but there are two air cylinders in the back - one is obviously used to extend and retract but the 2nd is kind of like a fail safe to ensure the CTA fully retract, it wasn't until changing both of these assemblies AND the Bumper that the machine ran perfect - I believe this was on a RAD 8 not a 5 but the CTA is pretty much the same. If it's coming out of an amo pack and not tape and reel, are the components located by the folded carrier tape coming bent out of the box?

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Don Burshnick

#82973