Segmented Crimping Tool for Uniform Pressure Distribution
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Solution Overview
Problem
Existing crimping tools often result in uneven pressure distribution on tubular members during crimping, leading to deformation and burr formation, which affects the reliability and sealing of pipe connections, and have complex structures that increase manufacturing and assembly costs.
Innovation Solution
A crimping tool with a simplified structure featuring a first and second crimping member, intermediate crimping members, and sliding members that are sequentially hinged and slidably disposed, ensuring uniform pressure application and reducing burr generation by forming a continuous active surface that contacts the workpiece.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If two semi-circular crimp members are coupled via a hinge shaft, then the crimping tool can perform crimping operation, but the pressure distribution on the workpiece becomes uneven causing deformation and burr formation
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 adjust and distribute pressure more uniformly across the workpiece, preventing the uneven pressure and deformation issues caused by simple two-member designs.
Solution Approach 2:
The intermediate crimping member(s) act as mediators between the first and second crimping members. These intermediate members help transmit and distribute the crimping force more evenly across the workpiece, ensuring uniform pressure distribution and preventing burr formation at the opening portion.
2Manufacturing precision
If multiple laminate members are hinged together to form inner and outer laminate rings, then crimping force can be distributed, but the structure becomes complicated increasing manufacturing and assembly costs
Solution Approach 1:
The invention applies sliding members at specific locations (first sliding member on the first crimping member, second sliding member on the second crimping member) to achieve uniform pressure distribution. This localized approach provides the necessary force distribution without requiring multiple laminate members throughout the entire structure, thus simplifying the overall design while maintaining crimping quality.
Solution Approach 2:
The sliding members provide dynamic adjustment capability, allowing the crimping members to adapt to the workpiece geometry during the crimping process. This dynamic mechanism enables effective force distribution with fewer components compared to static multi-member laminate structures.
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.