Master’s thesis — Peg-in-hole assembly with four control modes

Thesis defence presentation (PDF, 2022)

Context

Master’s thesis, Innopolis University (Dec 2021 – Jul 2022). Builds on bilateral teleoperation, VR interfaces, and peg-in-hole modules on the same robot.

Problem

Inserting a cylindrical peg into a hole with clearance at or below the robot’s positioning accuracy — a standard benchmark where pure position control fails without contact sensing or human guidance.

Approach

Implemented and compared four control strategies on a KUKA LBR iiwa (ROS):

  1. Full autonomy — vision-guided pick and hybrid position/force assembly (IEEE NIR 2021 paper)
  2. Bilateral teleoperation — Touch haptic device with endeffector force feedback
  3. Shared autonomy — operator guidance with automated compliance
  4. Learning from demonstration — imitation-based insertion

Also integrated computer vision for part localisation, a unified hardware software stack, and user studies (design of experiments + survey).

Outcome

Reliable assembly under tight clearance; bilateral and shared modes improved operator performance vs. position-only control. Presented at thesis defence.

Stack

ROS · Python · C++ · Computer vision · Haptics · Control systems · KUKA Sunrise