Why use Industrial robot?

Bruce, this seems like a strange question. You've repeated it and made
similar posts over the past couple months. It looks like a homework
question, so I'm nost surprised you haven't gotten many responses.

You can't explain how to choose an industrial robot until you know why
you want to use one. You've already listed the reasons why to use one
- productivity or protection rom dangerous tasks. You might add
consistency, repeatability, accuracy, or any one of a dozen other
concerns associated with manufacturing, since industrial robots are
almost exclusively used in production.

What other answer are you looking for?


Randy M. Dumse
www.newmicros.com
Objects in mirror are more confused than they appear

Thank you for your kindly reply. Randy.
yes.I know some reasons why we must use industrial robot.I also ask
this question to some of my friends who works for industrial robot
company,and their answer is that "the robot can do what a human can
not do." Yes.It is exactly right.
And this is not a homework question,I posted this question just want
to know what you guys think about this question? And you may have some
other special views about it.

Perhaps you'd like an example.

In the early 1980's Rockwell Int. was making gyros for nuclear
submarines. These electrostatically levatated beryllium spheres had to
be incredibly round and smooth, and any impurities left on them would
cause the field to discharge. So they had to be extremely clean as
well.

They tried to use clean room techniques with humans, but they just
weren't getting them clean. The very fact that they were humans
involved introduced the dirty they were trying to remove. For
instance, even the rubber gloves would sluff off particles during
handling.

So they built a small robot to do the cleaning. It would pick up the
lower case assembly in its grippers, and methodically swing it under a
stream of solvent, then set it down. Then the rotor ball, do the same,
set it down, and regrip at a different angle, and clean again, then
place in the lower cup. Then the upper cup was cleaned and placed over
the assembly.

The end result was with a human, and 24-hours effort to clean, about
30% passed inspection and became operational. With the robot, the
process took less than 20 minutes, and was near 100% perfect. Rockwell
chose to use an industrial robot for its repeatability, its
reliability, and its ability to be where humans should not be.

--
Randy M. Dumse
www.newmicros.com
Objects in mirror are more confused than they appear

It is a good example to explain why we choose industrial robot. Thank
you!! Randy.

Why?  To save money.

How to Choose? Hire an independent expert.  This is always important
for a high-cost item if you don't already have the in-house knowledge
to decide.  There are also service companies that specialize in
automation sells... but they will be biased towards the products they
sell. Still, they may be your best bet if you are going towards the
lower-end of the price spectrum.

Joe Dunfee

Thank you very much for your valuable reply. Joe.

It is a good idea that to find an expert to help to decide the
solution of robotized workcell.

1182139044.543375.274270@w5g2000hsg.googlegroups.com...

I agree with Joe, hire an independant expert.
I'm too connected to Adept,Staubli,Fanuc to be independant, and I'm
french......

What is the low side of the price range for a new industrial robot
arm? (lets say for example a 6DOF pick and place arm with about 2 feet
of reach).  I have been looking for something to experiment with that
has a few pounds of lifting capacity and have not seen anything less
than US$13000.

Also, is there one common standard for talking to an industrial robot
or are there many custom protocols?

-howy

1182187867.578142.228990@m36g2000hse.googlegroups.com...

For $13000, look after used robots.


I developped my own custom common standard protocol for
Fanuc,Unimation,Staubli,Adept robots.

So they all have their own proprietary protocols?
Seems pretty primitive.
If I were to design and sell my own semi-industrial robotic arm would
I could cook up my own protocol or is there a De Facto standard? Maybe
I support all the popular protocols...
Is your protocol documented?
What do you use it for?

-howy

1182298904.170671.124470@n2g2000hse.googlegroups.com...

  Usually they do.


  Yes, but it's propietary.


I use it to build applications residing 100% in a PC, using the robot as a
peripheral.
That means you can change the robot brand without changing a comma in the
program.
More than 100 robots in the shoe industry run that way.(roughing, sole
trimming, glue dispensing)
5 robots run that way in the energy industry. (hydro turbines repair welding
and grinding)

Hi,howy,

I got some rules to choose an industrial robot. It depends on the
weight of the workpiece you want to pick and place, the reach,the
speed, and the work enviroment,etc. of your application need. so you
must first know all above specifications and then can help you to
choose that industrial robot.