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Author Topic: Need help with 1000 lb capacity robotic arm  (Read 2119 times)

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Offline hoover_32091Topic starter

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Need help with 1000 lb capacity robotic arm
« on: December 19, 2007, 09:03:24 PM »
I need help in selecting motors for an arm design I have. The arm is comprised of three linkages. The first and third linkages are both 32" long and the center linage is 10" long. In the closed position, the arm is 54" tall. The base motor rotates clockwise. At the same time, motor 2 rotates 180 degrees extending the 10" linkage up. Motor 3 rotates to keep the third linkage straight up and down. The original concept was a pneumatic cylinder that raises up and leans over 3 feet. I think the arm is a better idea. Where can I find motors with the torque required to lift 1000lbs up 10" and move it to a work table three feet away?

Offline airman00

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Re: Need help with 1000 lb capacity robotic arm
« Reply #1 on: December 19, 2007, 09:12:13 PM »
why not just buy an industrial arm ( it might be cheaper)
Check out the Roboduino, Arduino-compatible board!


Link: http://curiousinventor.com/kits/roboduino

www.Narobo.com

Offline hoover_32091Topic starter

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Re: Need help with 1000 lb capacity robotic arm
« Reply #2 on: December 19, 2007, 09:46:37 PM »
I need the arm to fit under a 40" roller table. I cannot find any arm's that meet this criteria.

Offline ed1380

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Re: Need help with 1000 lb capacity robotic arm
« Reply #3 on: December 20, 2007, 08:53:07 AM »
ues this
http://www.societyofrobots.com/robot_arm_calculator.shtml
to see how much torque you need for teh motors and start searching from there
Problems making the $50 robot circuit board?
click here. http://www.societyofrobots.com/robotforum/index.php?topic=3292.msg25198#msg25198

Offline Gertlex

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Re: Need help with 1000 lb capacity robotic arm
« Reply #4 on: December 29, 2007, 04:15:29 PM »
Correct me if I'm wrong, but one would want to gear down a motor in order to get such a high amount of torque (99% of the time)... Thus you need to look at motor-gear combinations, not just motors themselves.
I

Offline Rebelgium

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Re: Need help with 1000 lb capacity robotic arm
« Reply #5 on: December 29, 2007, 04:34:28 PM »
making an arm that big is quite a challenge, you should look really carefully for an industrial arm.

if not, I hope you have experience with mechanical projects. Calculate the torque your motor+gearing will need, then the speed you want your arm to move with (less speed= more power).
with these you can select a motor and a gearing.

Where to buy these motors? ... I don't know, I make robots that are maximum 1 square foot. ;)
To relax after some hard work on robotics: A very fun free online text based MMORPG
orgcrime.net

Offline Admin

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Re: Need help with 1000 lb capacity robotic arm
« Reply #6 on: December 30, 2007, 12:41:11 PM »
make sure you get a motor with a worm gear output

 


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