Coaxial Cable Stripping Machine with Segmented Cutting Tip
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Solution Overview
Problem
Existing machines for stripping and tapering coaxial cables with copper-plated outer insulation face issues such as frequent blade replacement, mechanical fatigue, calibration requirements, and inability to handle various cable geometries, leading to inefficiencies and noise leakage due to misalignment and manual skill dependency.
Innovation Solution
A machine with a single blade system, a compression mechanism for stability, a cutting tool motor for rotational motion, a tool holder for conical tapering, and a sensor for centering, which eliminates the need for calibration and allows for both stripping and tapering of coaxial cables with copper-plated outer insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-blade systems are used for stripping outer jacket, then stripping capability is improved, but blade replacement frequency increases and mechanical fatigue occurs
Solution Approach 1:
The cutting tool is divided into separate functional components: a body portion and a replaceable tip portion. The tip portion can be independently replaced when worn, eliminating the need to replace the entire cutting tool assembly. This segmentation allows the main body structure to remain intact and reusable, significantly extending overall tool service life while maintaining stripping capability.
Solution Approach 2:
The cutting tip is designed with adjustable parameters including replaceable carbide inserts and variable cutting angles. These parameter changes allow the tool to adapt to different cable types and stripping requirements without requiring complete tool replacement, thereby extending service life while maintaining productivity.
2Force
If compression spring mechanisms are applied to outer jacket, then cable compression is improved, but mechanical fatigue and loss of compression force occur
Solution Approach 1:
The traditional compression spring mechanism is replaced with a motor-driven linear actuator system. This substitution eliminates the mechanical fatigue inherent in spring-based systems while providing controlled, consistent compression force through electronic actuation. The linear actuator can precisely control the cutting tool's approach to the cable without the degradation associated with spring fatigue.
Solution Approach 2:
The system incorporates sensors that detect cable presence and positioning, automatically adjusting the compression and cutting parameters. This self-service capability eliminates the need for manual calibration and compensation for mechanism wear, maintaining reliable operation over extended service periods.
3Manufacturing precision
If different offset positions are used to eliminate deformation, then cable opening quality is improved, but calibration and verification requirements increase
Solution Approach 1:
The system incorporates sensors and automated positioning mechanisms that detect cable placement and automatically adjust cutting parameters. This self-adjusting capability eliminates the need for manual calibration and offset adjustments, maintaining high manufacturing precision while reducing device complexity and operator skill requirements.
Solution Approach 2:
The system uses sensors to detect cable positioning and provides feedback to the control system, which automatically adjusts cutting parameters to compensate for variations. This closed-loop feedback mechanism maintains consistent cable opening quality without requiring periodic calibration or verification procedures.
4Stability of the object's composition
If large machine area at cable grip point is used, then cable stability is improved, but bent cables may hit the machine
Solution Approach 1:
The cable is held within a tapered guide structure that nestles the cable in a confined space. This nested arrangement provides stable cable positioning while keeping the overall machine footprint compact, preventing bent cables from interfering with other machine components.
Solution Approach 2:
The cable grip and positioning mechanism is designed in a vertical dimension, allowing the cable to be held stably above the cutting area. This dimensional arrangement separates the cable support function from the cutting function, preventing interference while maintaining stability.
5Ease of operation
If hand tools are used for stripping and tapering, then manual flexibility is improved, but manual skill requirement and misalignment increase
Solution Approach 1:
The machine incorporates automated cable centering and positioning mechanisms with sensors that detect cable placement and automatically adjust the cutting and tapering operations. This self-aligning capability eliminates the need for manual skill while maintaining precision, combining the ease of automated operation with accurate alignment.
Solution Approach 2:
The machine performs multiple functions including stripping, tapering, and centering operations through integrated automated mechanisms. This multi-functionality replaces multiple manual operations with a single automated system that maintains precision across all functions without requiring manual skill.
Data Source
Figure 1~2
Figure 3~4
AI summary
The present invention relates to a machine stripping the outer jacket and tapering the live ends of coaxial cables (1) that have copper-plated outer insulation and used in radio frequency (RF).