Interfacing vision with OTC robots, college lab project

[jinx182]

Hi all

I a full time factory maintenance tech and a part time community college student.  The college is developing it's new CIM program, which I am enrolled in. We are attempting to set up a work cell with some older model OTC Daihen robots that were donated to us when the local automaker upgraded to the latest generation machines. They had been using them in a welding app., but we would like to use them in a material handling app. and interface them to a vision system. We will be using Cognex DVT 535 and PPT Impact T20 vision systems. We have little to no support for these robots, since they are dated and we aren't exactly a paying customer (and we have an extremely limited budget). I am looking for any advice or tips I can get for interfacing these vision systems with the robots. It should be easy enough to do some pass / fail checks and have the robots respond depending on the decision, but what about using the vision systems for part locating? Any ideas on how to make this work? Is there a way we can set this up so that the vision system can determine the placement of the part within a given area, calculate an offset, and modify the robot pickup point in relation to the parts location?

Thank you for any thoughts / ideas / suggestions
 

[Werner Hampel]

well, there are a lot of solutions.

For Low Budget you will have to try this over Standard I/O.
You can give the Robot Coordinates in Binary Code and Recalculate withe the Controller.

If you have Profibus for all Components, i think, this would be the fastes Solution.

To Communicate by Asci Code to the Robot over RS 232 is almost too slow.