Crimping Tool Linkage Guide Movable Pivot Points
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Solution Overview
Problem
Existing crimping tools lack effective guidance for the movement of crimping dies relative to the tool body, leading to inefficiencies in crimping operations and potential deformation issues during high press forces.
Innovation Solution
A hand-operated crimping tool with pivotally mounted crimping dies that have movable pivot points relative to the tool body, guided by a linkage system comprising guide elements and a toggle mechanism with a spring-loaded slot for force compensation, ensuring precise movement and high press force handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If crimping dies are pivotally mounted with fixed pivot points relative to the tool body, then the structure is simple and easy to manufacture, but the guidance of movement is poor leading to deformation issues during high press forces
Solution Approach 1:
The pivot points of the crimping dies are made movable relative to the tool body through a linkage system with guide elements. This dynamic configuration allows the pivot points to adjust their position during the crimping operation, providing effective movement guidance while accommodating varying workpiece dimensions and maintaining reliable crimping under high press forces.
2Manufacturing precision
If a linkage system with guide elements is introduced to guide the movement of crimping dies, then movement guidance and precision are improved, but the device complexity increases
Solution Approach 1:
Guide elements are introduced as intermediary components between the linkage system and the crimping dies. These guide elements specifically constrain and guide the movement of the pivot points, ensuring precise crimping action while distributing the complexity across modular components rather than requiring a completely complex redesign of the entire mechanism.
3Adaptability or versatility
If pivot points are made movable relative to the tool body, then adaptability to different workpiece dimensions is improved, but the structural stability decreases
Solution Approach 1:
The linkage system with guide elements creates a controlled dynamic structure where pivot points can move to adapt to different workpiece dimensions. The guide elements constrain this movement along predetermined paths, providing stability through structured guidance while maintaining the adaptability needed for various crimping applications.
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 enables improved guidance and force distribution, allowing for reliable crimping operations with enhanced precision and reduced wear, accommodating a range of workpiece dimensions and maintaining tool functionality over extended use.
Implementation Method 1
a spring-loaded slot for force compensation
Data Source
Figure 1
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AI summary
The invention relates to a hand operated crimping tool (2) comprising a tool body (4) and two handles (6, 8), which handles (6, 8) are movably arranged in relation to each other, and further comprising at least three crimping dies (10, 12, 14, 16), where each of the crimping dies (10, 12, 14, 16) has a respective crimping surface (18, 20, 22, 24), where the crimping surfaces (18, 20, 22, 24) together enclose a crimp opening (26) arranged to receive a workpiece (28) to be crimped, where the crimping dies (10, 12, 14, 16) have pivot points (42, 44, 46, 48) that are arranged movable in relation to the body (4) of the crimping tool (2), where the relative movement of the tool handles (6, 8) is connected to the relative movement of the crimping dies (10, 12, 14, 16) by that a linkage (30) is arranged to guide the movement of the pivot points (42, 44, 46, 48) for the crimping dies (10, 12, 14, 16) relative to the body (4) of the crimping tool (2) when the tool handles (6, 8) are moved in relation to each other, where each of the crimping dies (10, 12, 14, 16) is further arranged between two guide elements (38, 32; 32, 34; 34, 36; 36, 38) arranged on the body (4) of the crimping tool (2) and further has a respective cam surface (74, 76, 78, 80) and a respective stop surface (82, 84, 86, 88), where the respective cam surface (74, 76, 78, 80) is arranged to cooperate with a guide surface (83, 85, 87, 89) on one of the guide elements (38, 32; 32, 34; 34, 36; 36, 38) and the respective stop surface (82, 84, 86, 88) is arranged to cooperate with a guide surface (83, 85, 87, 89) on the other one of the guide elements (38, 32; 32, 34; 34, 36; 36, 38), thus guiding the movement of the respective crimping die (10, 12, 14, 16) when the pivot points (42, 44, 46, 48) for the crimping dies (10, 12, 14, 16) are moved relative to the body (4) of the crimping tool (22). The invention also relates to a crimping die for a crimping tool.