Robotic Arm Rotary Connection Member Cable Routing
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Solution Overview
Problem
Conventional robotic arms with cable-driven mechanisms often suffer from cable tangling and management issues due to cables being wound around joints, which is not an ideal arrangement for efficient operation.
Innovation Solution
A robotic arm design featuring a rotary connection member with a through hole that allows cables to pass through, connected to servos within the main body, and includes orifices and cutouts to prevent tangling, with adjustable protrusions for secure attachment and orientation, facilitating cable management and reducing tangles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cables are wound around the joints of each arm, then the robotic arm can be electrically connected to the controller, but cable tangling and management issues occur
Solution Approach 1:
The patent extracts the cables from the traditional winding arrangement around joints and relocates them to pass through a dedicated through-hole in the rotary connection member. This separation of cables from the joint mechanism eliminates tangling while maintaining electrical connection reliability between the driving device and controller.
Solution Approach 2:
The rotary connection member serves as an intermediary structure that facilitates cable passage. The through-hole in this member acts as a guided pathway, mediating between the internal cable routing and external connections, thereby preventing direct contact and tangling with joint components.
2Ease of operation
If cables are routed through the main body, then cable management is improved, but the structure becomes more complex
Solution Approach 1:
The rotary connection member is designed to serve multiple functions: it connects the driving device to the arm, enables rotational movement, and provides a guided pathway for cables through its through-hole. By combining these functions in a single component, the patent avoids adding separate cable management structures, thus minimizing structural complexity while improving cable management.
Solution Approach 2:
The rotary connection member is divided into segments (first and second rotary connection members) with the through-hole strategically positioned. This segmentation allows the cable pathway to be integrated into the existing mechanical structure without requiring a complete redesign of the arm assembly, thereby limiting the increase in structural complexity.
Data Source
AI summary
A robotic arm assembly includes a main body, a number of servos arranged within the main body, each of which has an output shaft, and a rotary connection member connected to the output shaft of one of the servos at a first end of the main body. The rotary connection member defines a through hole allows cables to pass therethrough.