Joint Crimping Apparatus with Separation Mechanism
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Solution Overview
Problem
Existing joint crimping apparatuses face issues with the joint becoming jammed in the movable die, making it difficult to remove the cable after crimping, as the force required for crimping is high and often results in a changed placement state of the cable.
Innovation Solution
A joint crimping apparatus with a separation mechanism, including a tongue portion and elastic mechanism, that allows the crimped cable to be automatically removed from the movable die without additional force, using a pivot shaft and torsion springs to pivot the tongue portion and push the cable downward, ensuring the joint falls loosely on the fixed die.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a large crimping force is applied by the movable die, then the joint is successfully crimped to the cable, but the joint becomes jammed in the movable die groove and the cable becomes difficult to remove
Solution Approach 1:
The movable die is divided into two functional parts: a crimping portion for applying force and a pressing portion for removal. The pressing portion includes a groove that receives the crimped cable and a pressing surface that contacts the joint. This segmentation allows the same movable die to perform both crimping and removal functions at different stages.
Solution Approach 2:
The movable die transitions between two dynamic states: during crimping, the full crimping force is applied; during removal, the elastic mechanism dynamically changes the position of the pressing portion to apply upward pressure on the joint, facilitating cable extraction. This dynamic adjustment resolves the contradiction between strong crimping and easy removal.
2Reliability
If the joint is firmly held in the movable die groove during crimping, then the crimping operation is effective, but the cable placement state changes and removal becomes difficult
Solution Approach 1:
The elastic mechanism is pre-loaded before crimping begins. When removal is needed, this pre-stored elastic energy is released to automatically push the pressing portion upward, applying force to the joint to facilitate cable removal. This preliminary action ensures reliable crimping while preparing for easy removal without changing cable placement.
3Device complexity
If a simple movable die structure is used, then the device complexity is low, but no separation mechanism exists to automatically remove the cable
Solution Approach 1:
The elastic mechanism is designed to automatically activate during the removal phase without requiring external control or additional complex mechanisms. The pressing portion self-adjusts its position and applies force to the joint, enabling automatic cable removal. This self-service approach adds minimal complexity while achieving automatic separation.
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 apparatus simplifies the crimping process by allowing the crimped cable to be easily separated from the movable die, maintaining the cable's original placement state and facilitating subsequent operations without requiring additional force or complex mechanisms.
Implementation Method 1
a separation mechanism configured to remove the cable jammed in the second groove and crimped with the joint from the second groove
Implementation Method 2
using a pivot shaft and torsion springs to pivot the tongue portion and push the cable downward
Data Source
AI summary
A joint crimping apparatus adapted to crimp a joint to an end of a cable includes a base, a fixed die detachably mounted on the base, a movable die configured to reciprocate relative to the fixed die, and a separation mechanism. The fixed die has a first groove adapted to receive a portion of a joint in an un-crimped state. The movable die has a second groove adapted to cooperate with the first groove to crimp the joint to the end of the cable. The separation mechanism is configured to remove the cable jammed in the second groove and crimped with the joint from the second groove.