Crimping Device Connector Reduces Base Deformation
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Solution Overview
Problem
Conventional crimping devices for cable terminals suffer from metal fatigue and buckling of the piston rod due to repetitive loading, leading to premature failure of the crimping base and driving assembly.
Innovation Solution
A crimping device with a crimping base, driving assembly, die mount, and connector, where the connector forms a mutual pulling force between the crimping base and die mount, reducing deformation and extending the service life by preventing lateral movement of the die mount and buckling of the piston rod.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the die mount continuously applies compression force to deform the sleeve portion, then the crimping function is achieved, but the crimping base bends and breaks due to metal fatigue
Solution Approach 1:
The patent introduces a guide post that extends vertically from the crimping base, changing the structural support from a planar C-shaped base to a three-dimensional structure with vertical guidance. This dimensional addition provides a stable reference axis that prevents lateral bending of the crimping base during repetitive compression cycles, thereby extending its service life while maintaining the crimping function.
2Force
If the piston rod applies great compression force to the sleeve portion, then the crimping force is sufficient, but the piston rod buckles and moves laterally
Solution Approach 1:
The guide post acts as an intermediary structural element between the crimping base and the die mount. It provides a vertical reference axis that mediates the compression force transmission, preventing lateral buckling of the piston rod while allowing sufficient compression force to be applied to the sleeve portion. The guide post stabilizes the system without interfering with the crimping action.
3Ease of operation
If the piston rod is inclined with respect to the cylinder tube axis, then the die mount can be driven, but wear creates gaps causing the piston rod to stick
Solution Approach 1:
The guide post provides preliminary alignment and vertical constraint before the piston rod begins its reciprocating motion. By establishing a vertical reference axis in advance, the guide post ensures that the piston rod moves parallel to the cylinder tube axis throughout operation, preventing the formation of gaps due to wear and avoiding sticking. This preliminary structural guidance maintains reliable operation over time.
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 solution significantly extends the service life of the crimping device from 20,000 to 40,000 to 50,000 crimping cycles, preventing premature failure and maintaining operational efficiency.
Implementation Method 1
a hydraulic cylinder is mounted to the second end portion of the crimping base. The die mount is disposed between the first end portion and the second end portion of the crimping base and is connected to and is driven by the hydraulic cylinder
Implementation Method 2
An end of the piston rod is disposed in the cylinder while another end of the piston rod is connected to the die mount, and the piston rod is driven to move back and forth relative to the cylinder tube
Implementation Method 3
As the two crimping dies abut against each other, the sleeve portion in the die cavities of the two crimping dies is compressed and reshaped
Data Source
AI summary
A crimping device for a cable terminal has a crimping base, a driving assembly, a die mount, and a connector. The connector connects the crimping base and the die mount. The die mount is driven by the driving assembly to linearly move back and forth. A mutual pulling force is formed between the crimping base and the die mount. When compressing, deformation of the crimping base can be effectively reduced, and a service life of the crimping base can be extended. Moreover, the die mount does not move laterally, thereby avoiding the situation that the driving assembly would be failed after long-term used.