Pneumatic Joining Element Holding for Collision-Free Attachment
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Solution Overview
Problem
Existing riveting tools face challenges in providing a space-saving and non-critical malfunction-prone method for attaching joining elements, particularly due to interfering contours from holding mechanisms that can collide with moving stamps.
Innovation Solution
A device utilizing a linearly movable punch with a pneumatic arrangement to create a pressure difference that holds the joining element in place, eliminating the need for physical holding mechanisms and preventing collisions, and using a directed gas flow to maintain the joining element in the correct position until it is moved by the stamp.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical holding mechanisms are used to hold joining elements in place, then the joining elements can be securely positioned, but the mechanisms create interfering contours that can collide with moving punches
Solution Approach 1:
The patent replaces mechanical holding mechanisms with a pneumatic system that uses pressurized gas to hold joining elements in place. The gas pressure creates a holding force without any physical contact or moving parts that could interfere with the punch movement, thereby eliminating collision risks while maintaining reliable holding.
Solution Approach 2:
The patent employs a pneumatic holding mechanism where pressurized gas is directed against the joining element to secure it in the template position. This pneumatic approach eliminates the need for mechanical clamps, springs, or other contact-based holding devices that would create interfering contours.
2Reliability
If complex mechanical holding mechanisms are used to secure joining elements, then holding force can be provided, but the device complexity increases
Solution Approach 1:
The patent simplifies the device by replacing complex mechanical holding mechanisms with a straightforward pneumatic system. Instead of multiple mechanical components such as clamps, springs, and actuators, a single gas supply system provides the holding force, significantly reducing device complexity.
Solution Approach 2:
The patent extracts the essential function of holding from complex mechanical mechanisms and implements it through a simple pneumatic pressure system. By taking out the mechanical intermediaries and using direct gas pressure, the solution achieves holding force with minimal complexity.
3Volume of moving object
If space-saving design is implemented for the tool, then the tool size is reduced, but there is insufficient space for traditional holding mechanisms
Solution Approach 1:
The pneumatic holding system requires minimal space compared to mechanical mechanisms. Gas can be delivered through narrow channels or nozzles that occupy very little volume, allowing the tool to maintain a compact design while still providing effective holding force for joining elements.
Solution Approach 2:
By replacing space-consuming mechanical holding components with a pneumatic system, the patent enables a more compact tool design. The gas-based holding mechanism occupies significantly less space than equivalent mechanical structures, facilitating space-saving tool architecture.
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 solution allows for efficient and collision-free attachment of joining elements, ensuring accurate alignment and reliable operation without the need for complex mechanical holding mechanisms, thereby enhancing the tool's reliability and reducing wear.
Implementation Method 1
means for providing a pressure difference in the area of a presented joining element are provided, wherein the pressure difference that can be provided by the means on a presented joining element results in a holding force acting on the joining element
Implementation Method 2
flow means for providing a directed gas flow in the area of a pre-positioned joining element are provided, wherein the gas flow flows around the joining element in such a way that a holding force can be provided on the joining element
Data Source
Figure 1
Figure 2
AI summary
Proposed is a device for attaching a joining element (2) to a component section, for a tool (1) for attaching a joining element (2) to a component section having a linearly movable die (5), by which a joining element (2) presented in a presentation position (3) can be transferred from the presentation position (3) to the component section. According to the invention, means are present for providing a pressure difference in the region of a presented joining element (2), wherein, on a presented joining element (2), the pressure difference which can be provided by the means leads to a retaining force acting on the joining element (2) so that the joining element (2) is held in a positionally fixed manner in the presentation position.