Robotic Arm Cable Strain Management via Telescopic Adapter
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Solution Overview
Problem
Conventional robotic assemblies experience strain on electronic components due to repeated articulation, leading to degradation of components like solder, wired bonds, and cables, as they are not adequately protected during the full range of motion required for complex tasks.
Innovation Solution
An adapter assembly for robotic arms, comprising an inner shaft with a tool supply cable, an outer member in a telescopic configuration, and a compression spring that biases the inner shaft to a retracted position, minimizing strain on electronic components by managing the length of the tool supply cable during articulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional robots are used with fixed cable configurations to achieve full range of motion for complex tasks, then the range of motion is improved, but the electronic components and cables are subject to repeated strain and degradation
Solution Approach 1:
The patent applies the dynamics principle by implementing a telescopic cable management system that actively adapts its length based on the robotic arm's articulation position. The cable housing extends and retracts dynamically as the arm moves through its range of motion, ensuring the cable remains taut without excessive strain. This dynamic adjustment allows the system to maintain both full range of motion and component integrity, resolving the contradiction between versatility and reliability.
Solution Approach 2:
The patent uses an intermediary telescopic housing mechanism between the cable and the robotic arm components. This housing acts as a buffer that absorbs and manages the strain caused by articulation movements. By introducing this intermediary element, the system protects the electronic components and cables from direct strain while still enabling full range of motion, thus resolving the contradiction between adaptability and reliability.
2Adaptability or versatility
If cables are configured to accommodate greater range of motion, then the robot can perform more complicated tasks, but the cables and electronic components are subjected to repeated straining that degrades their integrity
Solution Approach 1:
The telescopic cable management system dynamically adjusts cable length based on the robotic arm's position and movement. As the arm articulates through complex task requirements, the housing extends and retracts to maintain optimal cable tension, preventing both excessive slack and dangerous strain. This dynamic adaptation enables the robot to perform complicated tasks while preserving cable and component lifespan, resolving the contradiction between task complexity capability and component durability.
Solution Approach 2:
The patent implements beforehand cushioning by designing a telescopic housing system that proactively manages cable strain before damage can occur. The housing is pre-configured to extend and retract in anticipation of articulation movements, cushioning the cables against repeated straining that would otherwise degrade their integrity over time. This preventive approach allows complex tasks to be performed while extending the lifespan of cables and electronic components.
3Productivity
If robotic arms articulate frequently to perform repeated movements, then productivity is improved, but the associated electronic components and cables experience repeated strain that leads to degradation
Solution Approach 1:
The telescopic cable management system provides dynamic strain management that scales with the frequency and amplitude of robotic arm articulation. During high-productivity operations with frequent repeated movements, the housing dynamically adjusts to absorb and distribute strain, preventing cumulative damage to cables and electronic components. This enables sustained high productivity while maintaining component integrity, resolving the contradiction between manufacturing output and component reliability.
Solution Approach 2:
The telescopic housing serves as an intermediary strain-absorbing mechanism between the frequently articulating robotic arm and the electronic components. During repeated productivity-driven movements, this intermediary buffer manages the cumulative strain that would otherwise degrade cables and components over time, enabling sustained high productivity while preserving component integrity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The adapter assembly allows for a full range of motion while protecting electronic components by managing cable slack and reducing strain, thereby extending the integrity and lifespan of the components.
Implementation Method 1
a compression spring configured to bias the inner shaft to the retracted position
Data Source
AI summary
An adapter assembly for a robot arm includes: an inner shaft configured to receive a tool supply cable therethrough and configured to attach to the tool supply cable; an outer member disposed annularly around the inner shaft and attached thereto in a telescopic configuration with the inner shaft movable with the tool supply cable between a retracted position and an extended position; and a compression spring configured to bias the inner shaft to the retracted position. A robotic assembly includes: a robotic arm including at least two linkages configured to articulate relative to each other; a tool attached to the robotic arm; a tool supply cable extending along the robotic arm for providing functionality to the tool; and an adapter assembly connected to the robotic arm. The adapter assembly includes a spring bias toward a retracted position, thereby taking-up slack in the tool supply cable.