Wedge Clamping Assembly for Force Retention
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Solution Overview
Problem
Conventional clamping assemblies lose clamping force when pressurized air is not applied, and they often fail to maintain a secure grip under additional downward forces.
Innovation Solution
The clamping assembly features a base member with guiding grooves and wedge members that use a wedge coupling mechanism to maintain clamping force through frictional engagement, allowing it to hold components securely even without pneumatic pressure and withstand additional downward forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pneumatic clamping assemblies are used, then clamping force can be applied when pressurized air is supplied, but the clamping force is lost when pressurized air is not applied
Solution Approach 1:
The wedge members are designed to automatically maintain clamping force through their own weight and geometric configuration. The wedge shape creates a self-locking mechanism where the components remain engaged without requiring continuous external energy input, allowing the system to serve itself and maintain clamping force independently of pneumatic pressure.
Solution Approach 2:
Instead of using pressurized air to maintain clamping force (conventional approach), the invention inverts the mechanism by using gravity and the wedge geometry to maintain clamping force. The wedge members are positioned such that their weight and angular configuration create the clamping action, reversing the traditional pneumatic dependency.
2Strength
If conventional pneumatic clamps are used, then clamping force can be generated, but they fail to withstand additional downward forces
Solution Approach 1:
The wedge members utilize angular and curved surfaces that create mechanical advantage and self-locking effects. The inclined surfaces of the wedges convert vertical forces into horizontal clamping forces, while the geometric configuration prevents disengagement under downward loads, enhancing both clamping strength and resistance to external forces.
Solution Approach 2:
The wedge members are pre-positioned in a configuration that creates immediate clamping force upon engagement. The geometry is designed so that the clamping action is established before any external downward forces are applied, creating a pre-loaded state that resists subsequent loading.
3Reliability
If wedge members with grooves are used to maintain clamping force, then frictional engagement secures the component, but the device structure becomes more complex
Solution Approach 1:
The wedge members are divided into functional segments with specific grooves and surfaces designed for particular purposes. The grooves are strategically positioned to create friction zones and engagement points, breaking down the complex structure into manageable functional elements that collectively achieve secure gripping.
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
This design ensures the clamping assembly can maintain a consistent clamping force without pneumatic pressure and generates twice the clamping force of similar-sized pneumatic clamps, effectively securing components under varying conditions.
Implementation Method 1
wedge members that use a wedge coupling mechanism to maintain clamping force through frictional engagement
Data Source
AI summary
A clamping assembly is provided. The clamping assembly includes a base member having a base portion and an extension portion. The clamping assembly further includes a piston that is adapted to move first and second guide members toward the base portion to move first and second wedge members, respectively, in first and second directions, respectively, on the extension portion to lift a wedge coupling member relative to the extension portion. The clamping assembly further includes a shaft coupled to the wedge coupling member that is further coupled to a clamping arm.