Segmented Crimping Tool Structure for Uniform Pipe Compression
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Solution Overview
Problem
Existing crimping tools often result in uneven stress distribution and burr formation during the crimping process, leading to reliability and sealing issues in pipe connections, and have complex structures that increase manufacturing and assembly costs.
Innovation Solution
A crimping tool design featuring a first and second crimping member with sliding members on their free ends, sequentially hinged together, which applies uniform pressure and reduces burr formation by ensuring the sliding members contact the workpiece first, thereby distributing force evenly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If two semi-circular crimp members are used with a hinge shaft, then the crimping tool can perform crimping operation, but the pressure is unevenly distributed causing burr formation and non-circular deformation
Solution Approach 1:
The crimping tool divides the crimping members into multiple segments (first crimping member, at least one intermediate crimping member, and second crimping member) that are sequentially hinged together. This segmentation allows each segment to independently contact and apply pressure to the workpiece, ensuring more uniform pressure distribution across the crimping surface and preventing burr formation and non-circular deformation.
2Reliability
If outer laminate ring and inner laminate ring are used, then crimping can be performed, but the structure becomes complicated and manufacturing costs increase
Solution Approach 1:
Instead of using multiple complete rings (outer laminate ring and inner laminate ring), the invention segments the crimping function into multiple hinged members (first crimping member, at least one intermediate crimping member, and second crimping member) that work together to achieve reliable crimping with fewer components.
Solution Approach 2:
The crimping members are designed with hinge connections that allow dynamic movement and adjustment during the crimping process. This dynamic structure enables the members to adapt to the workpiece shape and distribute pressure uniformly, achieving reliable crimping performance with a simpler structure compared to rigid multi-ring designs.
3Manufacturing precision
If sliding members are added to the free ends of crimping members, then uniform pressure is achieved, but the structure becomes more complex
Solution Approach 1:
The invention merges the sliding function directly into the crimping members themselves. The first crimping member, intermediate crimping member(s), and second crimping member are designed with inherent sliding capabilities through their hinge connections, eliminating the need for separate sliding members and reducing overall structural complexity while maintaining uniform pressure distribution.
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 crimping tool achieves uniform pressure distribution and reduces burr formation, enhancing the reliability and sealing of pipe connections while simplifying the tool structure and reducing manufacturing costs.
Implementation Method 1
a first sliding member slidably disposed on the first free end of the first crimping member... a second sliding member slidably disposed on the second free end of the second crimping member
Implementation Method 2
The first crimping member, the at least one intermediate crimping member, and the second crimping member are sequentially hinged together via connecting devices... performs a crimping operation when the two semicircular crimping members are rotated toward each other
Data Source
AI summary
A crimping tool is described comprising a first crimping member, a second crimping member, at least one intermediate crimping member, a first sliding member and a second sliding member. The free ends of the first crimping member and the second crimping member form an opening of the crimping tool. The first crimping member, the at least one intermediate crimping member, and the second crimping member are sequentially hinged together via connecting devices. The first sliding member is slidably disposed on the free end of the first crimping member. The second sliding member is slidably disposed on the free end of the second crimping member. The first sliding member is adjacent to the second sliding member. The inner sides of the first crimping member, the at least one intermediate crimping member, the second crimping member, the first sliding member, and the second sliding member are formed to be pressed with the workpiece to be crimped. The crimping tool has a simple structure and good crimping performance, so that the workpiece is uniformly stressed and burrs on the workpiece can be reduced.