Press Ring Elongated-Hole Joints for Uniform Tube Crimping
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Solution Overview
Problem
Existing press rings for tubular workpieces often fail to provide a homogeneous force distribution, leading to uneven connections and increased manufacturing costs due to complexity, while simpler designs lack sufficient force distribution, resulting in weak points and reduced connection quality.
Innovation Solution
A press ring with movable press jaws hinged to a connecting press jaw via elongated holes, allowing rotational and translational movement within a defined plane, ensuring even force application without additional means, and featuring a design that reduces manufacturing complexity and enhances robustness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If additional means are provided to reduce unevenness at the surface of the pressed tubular workpiece, then the force distribution homogeneity is improved, but the device complexity increases
Solution Approach 1:
The press ring utilizes dynamic movement of the bolts within the elongated holes during the pressing operation. The bolts are initially positioned at one end of the elongated holes, allowing the press jaws to converge freely. As pressing progresses, the bolts translate along the elongated holes to accommodate the changing geometry and maintain uniform force distribution throughout the deformation process, eliminating the need for complex additional means.
Solution Approach 2:
The press ring design allows the system to self-adjust and self-align during operation. The elongated holes automatically guide the bolt movement to achieve homogeneous force distribution without requiring external control mechanisms or additional components. The geometry of the elongated holes and the bolt translation mechanism work together to inherently balance the forces applied to the tubular workpiece.
2Device complexity
If the press ring design is simplified to reduce manufacturing costs, then the device complexity decreases, but the force distribution homogeneity deteriorates
Solution Approach 1:
The simplified press ring design achieves force distribution homogeneity through the dynamic translation of bolts within elongated holes. This dynamic mechanism replaces complex additional means with a straightforward geometric feature (elongated holes) that guides the bolts to automatically balance forces during pressing, maintaining manufacturing precision while reducing device complexity.
Solution Approach 2:
The invention changes the operational parameters of the press ring by allowing bolt translation along the elongated holes. This parameter change enables the system to adapt during pressing, transforming from a static structure to a dynamically adjusting system that inherently achieves homogeneous force distribution without complex additional components.
3Manufacturing precision
If multiple differently shaped interconnected pressing elements are used to provide circumferential homogenous pressure, then the force distribution homogeneity is improved, but the manufacturing costs increase
Solution Approach 1:
The press ring employs identical press jaws with standardized geometry connected through elongated holes and bolts. This universal design allows the same component configuration to be repeated around the entire circumference, achieving homogeneous force distribution through symmetry and repetition rather than through differently shaped custom elements, thereby reducing manufacturing costs.
Solution Approach 2:
The invention achieves force distribution homogeneity by changing the operational parameter of the connection mechanism. Instead of using differently shaped pressing elements, the same geometric configuration is used with the added parameter of bolt translation capability along elongated holes, allowing the system to adapt and balance forces dynamically while maintaining manufacturing simplicity.
4Device complexity
If the press ring structure is simplified to enhance robustness, then the device complexity decreases, but the force distribution homogeneity deteriorates
Solution Approach 1:
The robust press ring design incorporates dynamic bolt translation within elongated holes, allowing the structure to adapt during pressing. This dynamic feature enables a simple robust structure to achieve homogeneous force distribution by allowing the bolts to move and self-align, rather than requiring complex additional means to force balance the pressures.
Solution Approach 2:
The press ring design allows the robust simple structure to self-adjust through bolt translation along the elongated holes. The system inherently balances forces and achieves homogeneous pressure distribution without requiring complex control mechanisms or additional components, maintaining both robustness and manufacturing precision.
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
The press ring achieves a homogeneous force distribution across the tubular workpiece, reducing the risk of uneven connections and manufacturing costs, while simplifying the pressing process, reducing time, and enhancing productivity by allowing self-alignment and efficient force application.
Implementation Method 1
sufficient contact must be provided between the outer walls of the bolts and the inner walls of the elongated holes
Data Source
AI summary
A press ring (1) for pressing tubular workpieces (35), comprising: at least two movable press jaws (3); and at least one connecting press jaw (5) connecting the movable press jaws (3); wherein the movable press jaws (3) are each hinged at their proximal ends to the connecting press jaw (5) by means of respective bolts (9), so that the distal ends (7) of the movable press jaws (3) can be rotated towards and away from each other to close respectively open the press ring (1) to receive a workpiece (35) therein, and characterized in that the respective bolts (9) are arranged in elongated holes (11), allowing a translational displacement of the bolts (9) in the elongated holes (11) upon rotating the movable press jaws (3).