Automated Screw Driving System with Robotic Transfer - Craig Machinery

Screwdriving system: robot.fanucamer...
FANUC America Authorized Integrator Craig Machinery designs and builds automation machinery for the plastics industry, including robotic systems that incorporate FANUC robots.
This system from Craig Machinery features the versatile and compact FANUC LR Mate 200iD robot, used by Craig Machinery to transfer plastic automotive interior assembly fixtures for screw installation. The customer required installing six screws and spraying grease at two locations on the assemblies, all in under 25 seconds. The system uses two screw drivers, two spray nozzles and a slide fixture, all mounted on servo actuators, and an additional pneumatic pick & place for loading the completed assembly. This flexible system also includes an option to install a seventh screw on the side of the assembly using a third driver with no added cycle time.
Using the FANUC LR Mate 200iD robot to move the assembly fixture - instead of moving the screwdrivers - increased machine motion flexibility while simplifying the controls. Craig Machinery was also able to install the seventh side screw without adding additional costs.
The FANUC LR Mate robot rests the EOAT fixture on a Delrin support block during the screw installs. This transfers the force through the EOAT to the support block without putting additional force on the robot.
With the use of a FANUC robot, Craig Machinery was able to exceed the cycle time requirement of less than 25 seconds - System throughput is under 21 seconds/part. Additionally, with this design the operator can load the next assembly during the screw install cycle. To learn more about Craig Machinery’s full range of plastics automation solutions please visit www.craigmachin...

[@sandesh1104]

what kind of motors they used for tightening the screw?

[@Maiaal100]

Often stepper motors are used to build the robots

[@kmsengineering]

Great video

[@clarity1056]

Where are those auto screw feed units from?

[@mjoconr]

I'd like to know that also.

[@Virxo182]

@@mjoconr I believe they are fed through the tube connected to the screwdrive

[@mjoconr]

@@Virxo182 correct but where would I purchase them from?

[@ernestvillaflores3271]

@@mjoconr they are not standard parts. It's custom built and assembled to fit size of screws or multiple screws and consider available space in the machine.