Rotary Buckle-Fastening Assembly for Stable Modular Robot Joints
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Solution Overview
Problem
Existing buckle structures for mechanical connections are unstable, insufficient in rigidity, and not suitable for high-speed and high-frequency rotating mechanisms, leading to a need for a more stable connection method.
Innovation Solution
A buckle-fastening assembly featuring a surface buckle with a first connecting block and a buckling assembly with a second connecting block and a locking member, where the locking member is inserted into a gap to enhance stability, requiring mutual rotation for installation or disassembly, and the buckling assembly includes mirror-symmetrical buckling portions for improved rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple buckle structure is used for mechanical connection, then the device complexity is reduced and ease of manufacture is improved, but the connection stability and rigidity are insufficient for high-speed rotating mechanisms
Solution Approach 1:
The buckle structure is divided into multiple functional components: a buckle body with connecting blocks for engagement, a separate locking member with elastic deformation capability, and a gap structure for locking mechanism operation. This segmentation allows each component to be optimized independently while maintaining overall simplicity and manufacturability.
Solution Approach 2:
The locking member incorporates elastic deformation capability, allowing it to dynamically adapt during the locking and unlocking processes. The elastic deformation enables the locking member to engage with and disengage from the gap automatically, providing dynamic stability without adding complex mechanical structures.
2Device complexity
If a simple buckle structure is used, then the device complexity is reduced, but the connection rigidity is insufficient for high-speed and high-frequency rotating mechanisms
Solution Approach 1:
The locking member is designed with an arc-shaped engagement path that matches the curvature of the gap. This curved geometry distributes mechanical stresses more evenly during rotation, enhancing connection rigidity and stability under high-speed rotating conditions without increasing structural complexity.
Solution Approach 2:
The elastic properties of the locking member are optimized to provide sufficient rigidity during operation while maintaining ease of engagement and disengagement. By carefully selecting material parameters and geometric dimensions, the structure achieves high connection strength without adding complex mechanical elements.
3Reliability
If a locking member is added to enhance connection stability, then the connection reliability is improved, but the ease of operation for assembly and disassembly is reduced
Solution Approach 1:
The elastic locking member automatically engages with the gap through its own elastic deformation when the buckle components are brought together, and automatically releases when a disengagement force is applied. This self-service mechanism eliminates the need for additional actuators or complex locking procedures, maintaining ease of operation while ensuring reliable connection.
Solution Approach 2:
The gap structure serves as an intermediary element between the connecting blocks and the locking member. It provides a simple geometric feature that the elastic locking member can engage with automatically, facilitating easy assembly and disassembly while ensuring stable connection during operation.
4Reliability
If the locking member is placed in the gap, then the connection stability is improved, but the device complexity increases
Solution Approach 1:
The locking member is integrated with the buckle body structure, sharing common manufacturing processes and material selection. The gap is formed as a feature of the connecting block geometry rather than a separate component. This merging approach provides enhanced connection stability while minimizing the increase in device complexity.
Data Source
AI summary
The present disclosure relates to the technical field of electronic products, more particularly to a buckle-fastening assembly and a modular robot that includes a buckling assembly and a surface buckle coupled with the buckling assembly. The surface buckle defines a buckle-connecting surface with a first connecting block extending thereon, and a gap is formed between the connecting block and the buckle-connecting surface. The buckling assembly includes at least one buckling portion, which includes a second connecting block and a locking member disposed around the second connecting block. When the surface buckle is rotatably connected to the buckling assembly, the first connecting block is in contact with the second connecting block, and the locking member is placed in the gap. A modular robot is provided that includes a plurality of functional assemblies and at least one of the buckle-fastening assemblies, which have the advantages of stable connection.