Robotic Grit Blaster Requires Minimal Human Contact

Guyson Corp.’s RB-10-TC robotic grit blasting machine is adapted for processing aircraft turbine blades in production lots and designed for lightly attended operation, blasting an entire pallet-load of components without human intervention.

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Guyson Corp.’s RB-10-TC robotic grit blasting machine is adapted for processing aircraft turbine blades in production lots and designed for lightly attended operation, blasting an entire pallet-load of components without human intervention. A Fanuc M-10iA robot is mounted on a pedestal inside the 60" × 60" blast enclosure and is fitted with an end-of-arm gripper. A single suction-blast gun or pressure-blast nozzle is bracketed in position within reach of the robot. To enable re-gripping of blades in order to obtain uniform coverage of areas obscured by the robot’s part-holding gripper, a stationary auxiliary clamp or gripper is provided.

The RB-10-TC design incorporates a servomotor-driven linear actuator on a rigid stand attached to one side of the blast cabinet that carries a transfer cart in and out of the process chamber. Custom-designed pallets or fixture trays securely cradle the blades in the correct location and orientation for robotic picking. In operation, the robotic arm grasps a component from the pallet, which then withdraws from the cabinet through a pneumatically actuated sliding door. The robot exposes the part to the blast, constantly maintaining the correct stand-off distance and blast angle, while smoothly manipulating the blade in the programmed tool path to follow the contours of the component at the proper surface speed to assure thorough and uniform coverage. At the end of the blast cycle, the component is replaced in the tray pocket it came from, and the robot repeats the identical process until all the parts on the pallet are finished.

The robotic blast system is complemented by a cyclone separator/media reclaimer, a vibratory screen classifier and a cartridge dust collector. 

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