Quick-Change Chuck Nut Structure for Non-Perpendicular Clamping
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Solution Overview
Problem
Existing quick-action clamping nuts are complex and expensive to manufacture, require specific component alignment, and are not suitable for components with non-level or non-perpendicular contact surfaces, limiting their flexibility and reliability in fastening applications.
Innovation Solution
A quick-action clamping nut design featuring a first threaded section on a circumferentially closed nut body and a slidably guided second threaded section on a nut insert, allowing easy displacement without rotation and engagement with external threads, providing stability and insensitivity to component surface deviations, with features like pointed threads and a rectilinearly guided nut insert for enhanced load-bearing capacity and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a quick-action clamping nut uses multiple half-shells or nut parts that can be pivoted or rotated relative to each other to disengage threaded sections from an external thread, then the threaded sections can be easily disengaged from the external thread, but the device becomes very complex to manufacture and corresponds to high manufacturing costs
Solution Approach 1:
The quick-action clamping nut is divided into a nut body and a nut insert as separate components. The nut insert can be displaced relative to the nut body along the thread axis, allowing the threaded sections to be selectively engaged or disengaged from the external thread. This segmentation enables easy disengagement without requiring complex pivoting or rotating mechanisms, thereby reducing manufacturing complexity while maintaining operational ease.
2Reliability
If a quick-action clamping nut uses half-shells or nut parts that require precise guidance to maintain relative positions during pivoting or rotation, then the threaded sections can be reliably engaged and disengaged, but the guidance mechanisms increase device complexity and manufacturing cost
Solution Approach 1:
The nut insert is designed to be displaceable along the thread axis relative to the nut body, providing dynamic adjustment capability. This linear displacement mechanism is simpler than pivoting or rotating guidance systems, reducing structural complexity while ensuring reliable engagement and disengagement of the threaded sections with the external thread.
3Reliability
If a quick-action clamping nut has a contact surface aligned perpendicular to the thread axis to ensure reliable fastening, then the fastening function is reliable, but the nut cannot be used with components that have non-level or non-perpendicular contact surfaces
Solution Approach 1:
The nut insert can be displaced along the thread axis to adjust the position of the contact surface relative to the threaded sections. This dynamic adjustment allows the contact surface to maintain proper alignment with non-level or non-perpendicular component surfaces while the threaded sections remain engaged with the external thread, thereby enhancing adaptability without sacrificing fastening reliability.
4Adaptability or versatility
If a quick-action clamping nut allows the nut insert to be freely displaced relative to the nut body, then the nut can adapt to different fastening positions, but the nut insert may become unintentionally disengaged from the external thread under load
Solution Approach 1:
The connecting link is designed with a geometric constraint that prevents the nut insert from being unintentionally disengaged under load. The link's structure creates a preliminary counter-action that counteracts forces attempting to disengage the threaded sections from the external thread, ensuring reliable fastening while maintaining the adaptability of the nut insert's displacement along the thread axis.
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3~4
AI summary
The invention relates to a quick-release nut (10) with a first threaded section (18) extending along a threaded axis (20) of the quick-release nut (10) and with a second threaded section (22), wherein the first and the second threaded sections (18, 22) can be brought into engagement with an external thread extending along the threaded axis (20) in a fastening state of the quick-release nut (10) and can be brought out of engagement with the external thread in a sliding state of the quick-release nut (10) so that the quick-release nut (10) is slidable over the external thread, wherein the first threaded section (18) is formed on a circumferentially closed nut body (12) of the quick-release nut (10), wherein the second threaded section (22) is formed on a nut insert (14) of the quick-release nut (10) which is slidably guided in a groove (16) of the nut body (12).and wherein the nut insert (14) is guided along a straight displacement direction (52) in the guide (16), which is characterized in that the displacement direction (52) is inclined relative to a plane perpendicular to the thread axis (20).