Asymmetric Locking Element for Clamping Tool Fixation
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Solution Overview
Problem
Existing clamping tools face challenges in securely fixing and easily removing pressure application devices, as the force required for insertion and extraction is often similar, leading to difficulties in manufacturing and replacement processes.
Innovation Solution
A device with a locking element and locking element locating space designed to require less force for insertion than extraction, utilizing a ring-like snap ring that expands resiliently to secure the holding head, allowing for simple fixation and secure attachment to a clamping tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking element is designed to securely fix the pressure application device to the clamping tool, then the security of fixation is improved, but the force required for removal increases excessively
Solution Approach 1:
The locking element is designed with asymmetric engagement characteristics: during insertion, the holding head passes through the locking element with minimal resistance, but during removal, the locking element's geometry creates increased friction and engagement resistance. This asymmetric design ensures secure fixation while maintaining ease of insertion, resolving the contradiction between fixation security and removal force requirements.
Solution Approach 2:
The locking element incorporates dynamic friction characteristics that adapt to the direction of motion. The frictional engagement is optimized to provide high retention during normal operation (fixation security) while allowing controlled release when appropriate release mechanisms are activated, balancing the security of fixation with manageable removal forces.
2Reliability
If the locking element requires high force for extraction to prevent loss, then the reliability of fixation is improved, but the ease of operation during manufacturing and replacement deteriorates
Solution Approach 1:
The locking system is segmented into distinct functional zones: an insertion zone with low resistance for easy assembly, a locking zone with high engagement for secure fixation and loss prevention, and a release zone that enables controlled removal. This segmentation allows the locking element to provide strong retention while maintaining operational ease during manufacturing and replacement processes.
Solution Approach 2:
The locking element acts as an intermediary mechanism that mediates between the holding head and the clamping tool body. It provides progressive engagement that secures the assembly during normal use but allows controlled release through specific release mechanisms, thus preventing loss while facilitating ease of operation during manufacturing and replacement.
3Ease of manufacture
If the locking element is designed for easy insertion with minimal force, then the ease of manufacture is improved, but the security of fixation during operation deteriorates
Solution Approach 1:
The locking element employs asymmetric geometry that creates different engagement characteristics for insertion versus fixation. The insertion path is designed with minimal resistance and aligned features that guide the holding head through easily, while the locked position engages with increased friction and mechanical interlocking, ensuring secure fixation during operation despite easy insertion.
Solution Approach 2:
The locking element incorporates preliminary alignment features and guide surfaces that prepare the holding head for easy insertion. Once inserted, subsequent engagement features activate to provide secure fixation, thus achieving both ease of manufacture/assembly and operational reliability through preliminary structural arrangements.
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
Enables secure fixation of the pressure application device to the clamping tool with minimal force for installation and higher force for removal, facilitating easy replacement and manufacturing processes.
Implementation Method 1
The at least one locking element and the locking element locating space are formed in such a manner that the amount of force required to pass through the at least one locking element in the direction of insertion of the holding head into the holding head locating space is smaller than the amount of force required to pass therethrough in the direction of extraction of the holding head from the holding head locating space
Data Source
AI summary
A device for a clamping tool for applying pressure to a workpiece is provided, comprising a contacting area for a workpiece, a holding head locating space for a holding head of the clamping tool, and at least one locking element for fixing the holding head in the holding head locating space, which said locking element is arranged in a locking element locating space and must be passed through by the holding head, wherein the at least one locking element and the locking element locating space are formed in such a manner that the amount of force required to pass through the at least one locking element in the direction of insertion of the holding head into the holding head locating space is smaller than the amount of force required to pass therethrough in the direction of extraction of the holding head from the holding head locating space.