Clamping Nut Undercut Profile for Wrench Stability
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Solution Overview
Problem
Conventional mechanical clamping systems face issues with wrench slippage and lateral movement during clamping, especially in confined spaces, due to inadequate engagement and stability, leading to potential deformation and wear.
Innovation Solution
A clamping nut with recesses featuring an undercut profile on its end faces, allowing projections from a wrench to engage securely, preventing slippage and lateral movement, while the closed end face enhances stability and torque transmission through flat contact surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional grooves with undercuts are used in clamping nuts, then wrench engagement is improved to some degree, but lateral slippage cannot be completely prevented
Solution Approach 1:
The groove is segmented into multiple functional zones: an open long side for wrench insertion, a closed long side with undercut for lateral prevention, and flat contact surfaces for torque transmission. This segmentation allows each zone to perform its specific function optimally.
Solution Approach 2:
The groove design uses asymmetric geometry with one open long side and one closed long side containing the undercut. This asymmetric structure provides directional engagement that prevents lateral slippage while allowing easy insertion, resolving the contradiction between engagement stability and operational ease.
2Reliability
If a separate locking ring is added to prevent lateral movement, then stability is improved, but device complexity increases
Solution Approach 1:
The lateral prevention function is merged into the groove structure itself through the closed long side with undercut. This eliminates the need for a separate locking ring, maintaining stability while reducing device complexity.
Solution Approach 2:
The groove structure serves multiple functions simultaneously: torque transmission through flat contact surfaces, lateral prevention through the closed side with undercut, and easy insertion through the open side. This multi-functionality replaces the need for separate specialized components.
3Power
If flat contact surfaces are used in recesses, then torque transmission efficiency is improved, but wear and deformation may occur
Solution Approach 1:
Different regions of the groove have different geometric properties optimized for their specific functions: flat contact surfaces for torque transmission, undercut regions for lateral prevention, and open/closed sides for insertion and stability. This local optimization allows each area to perform its function efficiently without compromising overall durability.
Data Source
AI summary
A clamping system with a clamping nut and a wrench for tightening the clamping nut, wherein the clamping nut includes at least one recess on either the outside edge or the inside edge of the end face of the clamping nut to receive projections of the wrench. The edge opposite the edge with at least one recess is closed. The at least one recess is provided with at least one undercut, which the projections of the wrench can grip from underneath.