Concrete Chipping Robot With Multi-Axis Manipulator
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Solution Overview
Problem
Human concrete chipping is hazardous and inefficient due to the need for manual operation at heights, lack of precision in removing compromised concrete, and risk of damaging rebar, leading to suboptimal patching and increased costs.
Innovation Solution
A robot with a multi-axis manipulator and chipping gun, equipped with sensors and feedback mechanisms, that can be remotely controlled and maneuvered to safely access and remove concrete while avoiding rebar, using a platform lift and dust management system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual concrete chipping is performed by workers on platform lifts, then the chipping task can be completed, but worker safety is compromised due to exposure to falling concrete pieces and difficult operating conditions
Solution Approach 1:
The patent replaces the manual mechanical chipping system with an automated robotic system. The robotic manipulator equipped with a chipping tool performs the concrete removal task remotely, eliminating the need for workers to physically position themselves on elevated platform lifts and exposing them to falling debris hazards.
Solution Approach 2:
The robotic system acts as an intermediary between the operator and the hazardous chipping environment. The operator controls the robotic manipulator from ground level, allowing the task to be performed safely at height without direct human exposure to the dangerous work zone.
2Manufacturing precision
If manual chipping is used, then the task can be performed, but precision in removing only compromised concrete is poor leading to over-removal or under-removal
Solution Approach 1:
The robotic system incorporates force sensors and control algorithms that provide real-time feedback during the chipping process. The system monitors resistance forces and adjusts the chipping action accordingly, enabling precise removal of compromised concrete while stopping before damaging sound concrete or underlying rebar.
Solution Approach 2:
The patent replaces the worker's subjective tactile assessment of concrete hardness with an automated sensor-based system. Force sensors and control algorithms objectively measure and respond to material properties, eliminating the estimation errors inherent in manual operation.
3Productivity
If manual chipping is performed, then the work can be completed, but the process is time-consuming and inefficient
Solution Approach 1:
The robotic system performs chipping operations continuously without the fatigue, positioning delays, and safety precautions required in manual operation. The automated manipulator can maintain optimal chipping angles and forces consistently, significantly increasing removal efficiency and reducing overall task time.
4Reliability
If automated robotic chipping is implemented, then worker safety and precision improve, but device complexity increases
Solution Approach 1:
The robotic manipulator system is designed to perform multiple functions: positioning the chipping tool, controlling chipping forces, sensing concrete properties, and avoiding obstacles. This multi-functionality consolidates what would otherwise require separate systems into a single integrated platform, managing complexity while delivering comprehensive safety and precision benefits.
Data Source
AI summary
A chipping robot has a chipping gun attached to the end of a multi-axis robotic manipulator mounted on a powered, movable, platform that can be raised and lowered to access the underside of structures that may be substantial distances above the ground, for example, the underside of an elevated highway. The entire assembly is maneuverable under the work area and the platform may raised to access the concrete. Once the work area is in reach of the arm, the device is able to use numerous tools to complete essential steps of chipping portions of the concrete.