Floating Nut Assembly With Limited Float for Accurate Bolt Fitting
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Solution Overview
Problem
Existing floating nut assemblies in the automobile industry suffer from low assembly efficiency and accuracy due to a large movement space of the nut, leading to displacement during bolt fitting, which wastes time and affects assembly precision.
Innovation Solution
A floating nut assembly design featuring a limiting bracket with protrusions in clearance and/or elastic fit with positioning holes, allowing the nut to move relative to the bracket in a plane perpendicular to the threaded hole, ensuring a small floating space and preventing rotation, thereby enhancing assembly efficiency and connection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the nut is allowed to move freely relative to the limiting bracket, then the nut can accommodate positioning deviations during assembly, but the movement space becomes large causing low assembly efficiency and accuracy
Solution Approach 1:
The patent applies local quality by making only the positioning holes rigid (non-floating) while the rest of the nut-bracket interface remains floating. This localized rigidity at the positioning holes restricts nut movement to minimal deviations only, preventing large movements that reduce assembly efficiency, while maintaining adaptability for normal positioning variations.
Solution Approach 2:
The patent implements a dynamic positioning system where the nut can float relative to the limiting bracket to accommodate assembly variations, but the floating capability is dynamically restricted at the positioning holes to prevent excessive movement. This dynamic balance allows the system to adapt to positioning deviations while maintaining assembly efficiency.
2Adaptability or versatility
If the nut is allowed to move freely relative to the limiting bracket, then the nut can accommodate positioning deviations during assembly, but the nut rotation cannot be prevented affecting connection accuracy
Solution Approach 1:
The patent applies local quality by making only the positioning holes rigid (non-floating) while the rest of the nut-bracket interface remains floating. This localized rigidity at the positioning holes restricts nut movement to minimal deviations only, preventing large movements that reduce assembly efficiency, while maintaining adaptability for normal positioning variations.
Solution Approach 2:
The patent implements a dynamic positioning system where the nut can float relative to the limiting bracket to accommodate assembly variations, but the floating capability is dynamically restricted at the positioning holes to prevent excessive movement. This dynamic balance allows the system to adapt to positioning deviations while maintaining assembly efficiency.
3Adaptability or versatility
If protrusions are made elastic to allow nut movement, then the nut can float relative to the limiting bracket, but the protrusions may fall off along the axial direction
Solution Approach 1:
The patent applies local quality by making only the positioning holes rigid (non-floating) while the rest of the nut-bracket interface remains floating. This localized rigidity at the positioning holes restricts nut movement to minimal deviations only, preventing large movements that reduce assembly efficiency, while maintaining adaptability for normal positioning variations.
Solution Approach 2:
The patent implements a dynamic positioning system where the nut can float relative to the limiting bracket to accommodate assembly variations, but the floating capability is dynamically restricted at the positioning holes to prevent excessive movement. This dynamic balance allows the system to adapt to positioning deviations while maintaining assembly efficiency.
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 design ensures precise and efficient assembly of nuts and bolts by minimizing nut movement and rotation, improving overall assembly accuracy and efficiency.
Implementation Method 1
the protrusion is configured to be elastically deformable in a radial direction thereof
Data Source
Figure 1
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Figure 4~5
AI summary
Embodiments of this application provide a floating nut assembly (100) and an electric device and relates to the field of battery assembly technologies. The floating nut assembly (100) includes: a nut (10), provided with a threaded hole (11); and a limiting bracket (20), configured to be detachably connected to a base (500) to form between the limiting bracket (20) and the base (500) a limiting space for accommodating the nut (10), where one of the limiting bracket (20) and the nut (10) is provided with at least two protrusions (31), and the other one is provided with at least two positioning holes (32); the protrusions (31) are in one-to-one correspondence to the positioning hole (32); the protrusion (31) is inserted into the positioning hole (32); and the protrusion (31) is in clearance fit and/or elastic fit with the positioning hole (32). The floating nut assembly (100) can ensure assembly efficiency and connection accuracy of the nut (10) and a bolt (600).