Robotic Claw for Top-Down Disc Lifting

Robotic Claw for Top-Down Disc Lifting

What

  • Designed a proof-of-concept robotic claw to lift a 515 mm disc, 22 to 25 mm thick, from the top while it rests on a 50 mm platform.
  • Met strict client requirements: minimal moving parts, easy manufacture, simple maintenance and operation from a single servo motor.

How

  • Developed a mechanism that converts linear collar motion into circular claw movement, so the claws grip cleanly from above without striking the disc edge.
  • Iterated through the constraints and adopted a three-claw, 120° layout for stability, clearance and reliable lifting.
  • Modelled and assembled in SolidWorks for efficient parametric control of the geometry.

Results

  • Delivered a functional claw with a 520 mm internal gripping diameter, giving the required 5 mm clearance for safe operation.
  • Produced a validated proof of concept meeting every client criterion, with linear actuation intended to be driven by a screw jack.

Tools and processes: SolidWorks, mechanism design, linkage kinematics, clearance analysis, servo actuation