Wire Conveying Hand Segmentation for Crimping Stability
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Solution Overview
Problem
Existing electric wire terminal crimping devices face issues with holding failure and defective products due to increased number of crimping devices or faster conveying speeds, leading to posture changes and potential misinsertion of terminals into connector housings.
Innovation Solution
The electric wire terminal crimping device conveys the wire from one side of multiple crimping means to another without grip-substitution, using a combination of first and second conveying hands and anti-swinging units to maintain wire posture and stability, reducing the need for frequent grip changes and minimizing mechanical faults.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of crimping devices is increased or conveying speed is increased, then productivity is improved, but holding reliability deteriorates due to grip-substitution frequency
Solution Approach 1:
The patent divides the wire conveying function into two independent hands: the first conveying hand handles transport from measurement to crimping section, while the second conveying hand handles transport within the crimping section. This segmentation eliminates the need for grip-substitution between different conveying stages, maintaining continuous holding reliability while enabling parallel processing and higher productivity.
Solution Approach 2:
The first conveying hand acts as an intermediary that transfers the wire from the measurement section to the crimping section without releasing the grip. This intermediary function eliminates the need for grip-substitution that would otherwise occur when transferring between different conveying mechanisms, thereby maintaining holding reliability while enabling streamlined workflow.
2Ease of operation
If grip-substitution is performed frequently, then wire positioning flexibility is improved, but mechanical faults increase
Solution Approach 1:
The patent implements continuous holding of the wire by both conveying hands simultaneously, eliminating the interruption caused by grip-substitution. This continuous action maintains wire positioning flexibility while reducing the frequency of mechanical engagement and disengagement, thereby lowering the risk of mechanical faults.
Solution Approach 2:
The patent merges the wire holding function into a continuous process where both conveying hands maintain grip on the wire simultaneously during transfer. This merging eliminates the need for sequential grip-release-grip cycles, reducing mechanical operations and associated fault risks while preserving positioning flexibility.
3Productivity
If conveying speed is increased, then productivity is improved, but wire posture stability deteriorates
Solution Approach 1:
The patent segments the conveying process into two distinct phases handled by separate hands, each optimized for their specific function. The first hand provides stable transport at controlled speed from measurement to crimping, while the second hand ensures precise positioning within the crimping section. This segmentation allows high overall productivity while maintaining local posture stability in each phase.
Solution Approach 2:
The first conveying hand serves as a stable intermediary that transports the wire without releasing grip, maintaining posture stability during the transfer phase. This intermediary function allows the system to operate at higher speeds while the second hand ensures precise positioning, thereby maintaining overall wire posture stability despite increased conveying speed.
Data Source
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AI summary
A terminal crimping device where an electric wire (14) is moved from a wire stripping section (10) to a terminal crimping section (6), with both ends of the wire (14) held by two wire holding hands (3) of a wire conveying hand (2), and is subjected to terminal crimping processing by terminal crimping pressing devices (6a). The terminal crimping device has the second wire conveying hand (2) for conveying the wire (14) at the terminal crimping section (6). The wire conveying hand (2) conveys the wire (14) without passing it from one side of the wire crimping pressing devices (6a) to the other side, so that an occurrence of a holding failure of the wire (14) is suppressed even if the number of the terminal crimping pressing devices (6a) is increased or the conveyance speed of the wire (14) is increased.