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Show"N"Tell ( Your Machines) / YAM-550 lathe retrofit

« on: February 16, 2011, 11:35:20 AM »

You may notice that I have a post going on a Bridgeport series I CNC mill with a 24 position ATC, but I have decided to do my lathe first. This machine will be easy in comparison to the mill and it is intended to take the place of my old lathe. Once it is done I'll sell the old lathe and free up some much needed floor space.

The lathe is a YAM-550 (tag on the back says model 1422) with a Anilam Lathemate II control. The control has 2 bad boards and who knows what else is wrong with it. The iron however is really nice.

Machine specs....
Swing over bed: 15.5"
Swing over slide: 9'
Between centers: 23"
Spindle bore: 1.750"
Spindle speed: (6) 128/238/422/847/1577/2800 RPM
Motor: 7.5 HP on 220VAC 3 Phase
Has a external oil cooler that cools the oil and pumps it back to the head stock.

What I want to control.......
X and Y axis DC servos (planing on using the OEM's)
Spindle CW/CCW
Oil cooler
Flood coolant (OEM 220VAC 3 Phase)
Mist coolant
Spindle brake

Planed machine inputs..........
Encoders X and Y
Encoder Spindle or spindle index pulse?
Limit switches X and Y
Foot brake stop switch

Planed operator inputs......
E-Stop
Cycle start
Cycle pause
Jog axis/spindle speed/feed rate selector
Jog rate 1/10/100 selector
MPG
Flood coolant on/off
Mist coolant on/off

Planed outputs.........
E-Stop Lt.
Tool change required Lt.
Cycle completed Lt.
X and Y axis DC servos
Spindle CW
Spindle CCW
Oil cooler
Mist coolant
Flood coolant
Spindle brake

Did I miss any thing? Is there something you think I should include that I haven't?

The OEM Servos are S.E.M. DC Perm. magnet.
Type: MT 30M4-59
Constant stall torque: 3 NM
Max RPM: 2400
Volts: 142
Pulse amps: 30
Tacho: 9-5/1000 RPM

I will replace these at some point, but hope to use them for now to keep cost under control. The OEM encoders are mounted to the ends of the ball screws and the servos are belt drive to the ball screws. The encoders are from Anilam and seem to be ok, but I plan to replace them any way.

I plan to use mostly equipment from CNC4PC for mt retrofit. I like the products that they have to offer and see that there are lots of people out there using them.

So the hardware that I plan on using for them is.....
1, C32 multifunction board
1, Smooth stepper board
7, C27 RJ45 to screw term. boards
1, C34DG Dugong RJ45 board
2, Dugong DC servo drives
1, C3 Index pulse card
and later add the MPG9 panel with PoKeys to get the rest of the I/O I want.

Mach 3 will run the system.

I haven't bought any thing yet, but plan on ordering stuff in the next week or so. If you have advice, input, do's, don't please let me know. Thanks
 

2

Show"N"Tell ( Your Machines) / Bridgeport series I cnc retrofit w/24 position ATC

« on: January 29, 2011, 04:09:38 PM »

 

Hello all, I am new here and could use some tips, pointers, info, and just plain help. I hope that I have the proper location for this type of post. I'm sorry if I have this in the wrong section.

Some about me first:

 I own a small shop and have done a retrofit on a lathe in the past (manual lathe to Ahha CNC running on there software in DOS). I have a Hurco CNC knee mill, but I have always preferred the machines with box ways over the v ways and dreamed of auto tool changes.

Now about the project:

 I picked up a Bridgeport series I CNC with a 24 position ATC. Machine came with 50 plus tool holders, 2 collet sets, Manuals, ect. It is said to be in operational condition, but I have not even put power to it yet. I have no plans on running it the way it is and want to do a retro on it. The iron is in excellent condition. Testing by hand at this point seems as though every thing moves smooth and feels tight.  The machine looks like the ones in the pictures below (hope it works right).


I am out of town for another week, but when I get back to the shop I will take detailed pictures of the actual machine in question.

Now for what I don't know:

There seems to little information out there for this machine. What BOSS is this machine? I has servos so I would have thought BOSS 8 or up, but it is a series I (BOSS 7 and down?). I have never in 25 years in the trade worked with any Bridgeport CNC's so I don't know much about them.

My plan was that I would use Ajax CNC BOSS 8+ retrofit kit as it reuses the servos and has the option for the ATC. Then the more I looked around the better Mach looked. It seems as though I could also use Mach on my Ahha conversion and get more out of the lathe than I am now. Would be nice to have the same GUI on the machines so you don't have to teach every new emp. multiple GUI's  and the Hurco too. I wave been watching the post on the Bridgeport CNC VMC with ATC with great intrest. What an amazing machine now that he is done with it. Gives me inspiration for my retro.  

I would love to hear from those of you that have experience with Mach, BOSS, and ATC's. Any input on hardware, OEM servos or new, what to watch out for, ect. Any and all help will be appreciated.

Thanks.