Cable Shield Braid Shearing for Flexible Connector-End Lengths
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Solution Overview
Problem
Existing methods for processing electrical cables, particularly cutting the outer conductor or cable shield braid, lack flexibility in achieving precise lengths and are not universally applicable for different types of connectors, as they often require folding the braid which restricts arbitrary length cutting.
Innovation Solution
A device comprising a die with a through hole and a punch that allows for coaxial cutting of the cable shield braid, enabling flexible adjustment of the remaining length by positioning the cable relative to a contact surface within the die, decoupling cutting from folding, and using a clamping device for secure alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a punch and die combination is used to cut cable shield braid, then automated mass production is achieved with cost and time savings, but the method cannot cut to any desired length due to fixed geometry of punch and die
Solution Approach 1:
The die is designed with a movable contact surface that can be adjusted axially along the die body. This dynamic adjustment capability allows the cutting position to be varied, enabling cutting of the cable shield braid to any desired length while maintaining automated production. The contact surface can be positioned at different locations to accommodate different connector types and shield length requirements.
2Extent of automation
If the cable shield braid is folded back during processing, then automated cutting is achieved, but arbitrary lengths cannot be specified as dimensions of punch and die determine the remaining length
Solution Approach 1:
The contact surface on the die is made movable rather than fixed. This allows the cutting position to be dynamically adjusted independent of the punch geometry. The operator can position the contact surface at any axial location along the die, enabling precise control of the remaining shield length while maintaining automated cutting operation.
3Adaptability or versatility
If manual processing is used, then flexibility and ease of adjustment for desired shield length is achieved, but cost increases and automation is lost
Solution Approach 1:
The die incorporates a movable contact surface that can be adjusted to different positions, providing the flexibility characteristic of manual processing. However, this adjustment mechanism is integrated into an automated cutting system, maintaining low production costs and high efficiency. The device combines the adaptability of manual methods with the productivity of automation.
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
Enables precise and flexible cutting of electrical cable shield braids to any desired length, suitable for various connector types, enhancing automation and reducing manual intervention in mass production.
Implementation Method 1
a punch that can be positioned coaxially against the die in order to cut the exposed cable shield braid of the cable end inserted into the die by means of shear forces between the punch and the die
Data Source
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AI summary
The invention relates to a device (1) for processing an end (2) of an electrical cable, comprising a cutting device (7) for cutting to length a cable screen braid (8) exposed in the region of the end (2) of the cable to be processed, in order to divide the cable screen braid (8) into a cut piece (8.1) to be removed and a connection piece (8.2) remaining on at the end (2) of the cable. According to the invention, the cutting device (7) has a matrix (9) with a through-hole (10), through which the end (2) of the cable to be processed can be coaxially guided, wherein the cutting device (7) also has a die (11) which can be coaxially provided to the matrix (9) in order to divide the exposed cable screen braid (8) of the end (2) of the cable introduced into the matrix (9) by means of shearing forces between the die (11) and matrix (9). In addition, according to the invention, the matrix (9) has a contact surface (12) for at least one sub-region of the connection piece (8.2) of the cable screen braid (8) remaining after the cutting to length, on which the sub-region of the connection piece (8.2) rests during the cutting to length.