Power assembly press recommendations ?

K

kla64

Aluminum

Joined

Aug 5, 2013

Location

Illinois, USA

• Apr 17, 2018

• #1

So, we have a process that requires a thin sleeve be pressed over an arbor. We then machine the sleeve and press it off the arbor.

Using a bench top arbor press.. not sure the size.

The machining process is fast. 1 minute maybe.. The weak link is the press operation. Operator fatigue, boredom, etc., greatly slows the output.

I'm looking for recommendations of a power press (air, air/hydraulic, electric ), from anyone doing something similar.

Thanks



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M

Milland

Diamond

Joined

Jul 6, 2006

Location

Hillsboro, New Hampshire

• Apr 17, 2018

• #2

So you're removing the arbor from the lathe each time? Why not use an expanding arbor and keep the process entirely in the lathe? Manual, air, hydraulic - there's lots of options...

 

K

kla64

Aluminum

Joined

Aug 5, 2013

Location

Illinois, USA

• Apr 17, 2018

• #3

Yes, arbor is loaded with each new part.

The process is od grinding a . 060" wall ring. We need the expanded ID held consistent size. We've tried pie jaws, and 5c expandable collet. Any gap between segments causes the OD to push away.

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M

Milland

Diamond

Joined

Jul 6, 2006

Location

Hillsboro, New Hampshire

• Apr 17, 2018

• #4

These guys offer "no gap" expanding mandrels that would allow at-machine changeover, and there's others out there.

Hydraulic Expanding Mandrels On Positrol Workholding

 

D

DDoug

Diamond

Joined

Oct 18, 2005

Location

NW Pa

• Apr 17, 2018

• #5

With that small of tonnage requirements, I can see a small enerpac cylinder,
with the air powered "shoebox with foot treadle" pump.

Hand held cylinder with some custom tooling on the threaded nose, reach in
the lathe, step on the pedal and pull the part off.

Use a double acting cylinder, and you can push them on too.

 

JRIowa

Diamond

Joined

May 27, 2003

Location

Marshalltown, Iowa, USA

• Apr 18, 2018

• #6

You do realise that with a power press, you will need something that is enclosed and requires 2 hand operation. OSHA is very specific on that. This will probably slow your cycle time even more.

As Milland stated, give Positrol a call. Used them before and there stuff works. All kinds of applications and I'm certain that they have something similar to what you're trying to do.
JR

 

K

kla64

Aluminum

Joined

Aug 5, 2013

Location

Illinois, USA

• Apr 18, 2018

• #7

Thanks for the comments. I'll give Positrol a call. I also found a press by Magnum, MCC series, that I'm going to check out.

I didn't think about the guarding / OSHA compliance issues. So, I'll have to consider that in any decisions.





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M

Milland

Diamond

Joined

Jul 6, 2006

Location

Hillsboro, New Hampshire

• Apr 18, 2018

• #8

Let us know what direction you go, and it it's the expanding arbor, what the cost is.

 

Conrad Hoffman

Diamond

Joined

May 10, 2009

Location

Canandaigua, NY, USA

• Apr 18, 2018

• #9

Some time back I was investigating presses and became enamored with these- SCHMIDT® Technology | Manual, Air, Hydro-Pneumatic & Servo Presses
Never bought one, but they seem to have a great variety.

 

A

adama

Diamond

Joined

Dec 28, 2004

Location

uk

• Apr 19, 2018

• #10

^ from when i last enquired they start at a bit over 1K and go on up as size, controls and power source increases. They sure are nice though and the customer i have using one for a assembly job loves it, certainly a massive diffrence to there old nasty arbour press.

 

B

Bill D

Diamond

Joined

Apr 1, 2004

Location

Modesto, CA USA

• Apr 19, 2018

• #11

Does a standard handcrank arbor press require any guards or shrapnel shields per OSHA?
Bill D.