Press Fitting Deformation Zone for Multi-Diameter Tube Connections
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Solution Overview
Problem
Current press connection systems require multiple fittings and press tools for different tube diameters, leading to inefficiencies and increased costs, especially when trying to connect imperial and metric tubes, as each size necessitates specific fittings and tools.
Innovation Solution
A press connection system with a press tool and fittings that can accommodate multiple diameters by adjusting the deformation zone and using interchangeable inserts, allowing the same fitting to be used for both imperial and metric tubes, reducing the number of required fittings and tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple fittings and press tools are provided for different tube diameters, then connection reliability for specific diameters is ensured, but device complexity and inventory requirements increase
Solution Approach 1:
The press tool is designed with interchangeable inserts that allow a single tool to accommodate multiple tube diameters. The fitting is designed with a deformation zone that can be effectively compressed for both imperial and metric tube sizes, enabling one fitting design to serve multiple connection requirements without compromising connection reliability
Solution Approach 2:
The press tool uses adjustable compression parameters through different inserts to adapt to various tube diameters. The deformation zone geometry is designed to accommodate parameter variations in tube sizes while maintaining consistent connection quality across different diameter specifications
2Adaptability or versatility
If a single fitting is used for both imperial and metric tubes, then adaptability and inventory reduction are achieved, but connection stability may be compromised due to diameter differences
Solution Approach 1:
The fitting incorporates a specifically designed deformation zone with optimized geometry and material properties that concentrate the compression effect precisely where needed. This localized design ensures stable connections for both imperial and metric tubes by focusing the deformation energy in the critical connection region regardless of the overall tube diameter
Solution Approach 2:
The press tool employs dynamic compression control with adjustable force and displacement parameters adapted to the specific tube diameter being connected. The system dynamically adjusts pressing parameters based on the insert configuration to ensure optimal connection stability for each tube size while using the same fitting design
3Adaptability or versatility
If press tool deformation distance is increased to accommodate smaller tubes, then adaptability to different diameters is improved, but device complexity and operation time increase
Solution Approach 1:
The press tool inserts are pre-configured with optimized deformation paths and geometries specific to different tube diameter ranges. This preliminary design of the compression trajectory allows the tool to achieve effective deformation in minimal strokes, adapting to different diameters without requiring excessive adjustment time or complex real-time programming
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 enables a secure mechanical connection across various diameters, reducing the need for multiple fittings and tools, improving connection stability and versatility, while maintaining a tight seal, even when connecting tubes of different sizes.
Implementation Method 1
the parts are designed for pressing the deformation zone of a first outer fitting diameter and of a first inner fitting diameter on the first tube of a first tube diameter inserted in the fitting
Data Source
AI summary
A press connection system comprises a press tool (50, 60), a fitting (1) and at least a first tube (2) of a first tube diameter (R13), the press tool (50) to act with force on a deformation zone (3) of the fitting (1). The deformation zone (3) is pressed either on first tube (2) of a first tube diameter (R13) or to a second tube (2) of a second tube diameter (R23), the second tube diameter (R23) being smaller than the first tube diameter (R13). Further, a press tool, inserts therefore and a tubing system and the use of these enable to connect tubes of more than one diameter to the fitting.