Crimping Die Rolling Motion Reduces Wear
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Solution Overview
Problem
Existing crimping tools experience excessive wear between crimping dies and the tool body due to sliding movements during the crimping operation, which affects the reliability and longevity of the tool.
Innovation Solution
A crimping tool design featuring at least three crimping dies that are pivotally mounted and axially fixed near their ends on a guide plate, allowing for a rolling movement relative to the tool body, thereby eliminating direct sliding contact between the crimping dies and the tool body, and incorporating a linkage system to guide the movement of the crimping dies.
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 crimping operation can be performed, but sliding movement occurs on the contact surface between the crimping dies and the tool body causing excessive wear
Solution Approach 1:
The patent applies the dynamics principle by making the pivot points of the crimping dies movable relative to the tool body instead of fixed. The guide plate enables the pivot points to move along predetermined paths during the crimping operation, transforming the static mounting system into a dynamic one. This movement converts the sliding friction between the crimping dies and tool body into rolling friction, significantly reducing wear and extending tool life while maintaining reliable crimping performance.
2Device complexity
If crimping dies are fixed axially and pivotally mounted in the tool body, then the structure is simple, but sliding movement causes excessive wear between crimping dies and tool body
Solution Approach 1:
The patent introduces a guide plate as an intermediary component between the crimping dies and the tool body. This guide plate facilitates the movement of pivot points along predetermined paths, enabling the transition from sliding to rolling motion. The intermediary structure adds minimal complexity while effectively solving the wear problem by mediating the interaction between the crimping dies and tool body.
3Ease of manufacture
If pivot points are fixed relative to the tool body, then the mounting is simple, but sliding movement occurs reducing tool durability
Solution Approach 1:
The patent transforms the static mounting system into a dynamic one by enabling the pivot points to move relative to the tool body through the guide plate mechanism. This dynamic approach maintains ease of manufacture while significantly extending tool longevity by eliminating sliding wear through rolling motion during the crimping operation.
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
This design reduces wear between the crimping dies and the tool body, enhancing the tool's durability and ensuring a consistent crimping action without compromising the mechanical and electrical connection of the crimped joint.
Implementation Method 1
a connector i.e. a terminal, splice, contact or a similar device is mechanically secured to a cable - e.g to a conductor such as a wire - by deformation so that a solid joint having reliable mechanical and electrical connection is formed
Implementation Method 2
producing a rolling movement between the pivot points of the crimping dies and the body of the tool
Implementation Method 3
the sliding surfaces of the crimping dies are in sliding contact with the crimping surfaces of the adjacent crimping dies
Data Source
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AI summary
The invention relates to a crimping die (12,14,16,18) and a crimping tool (2) comprising at least three crimping dies (12,14,16,18) that are guided for displacement in the crimping tool (2), where each of the crimping dies (12,14,16,18) have a respective crimping surface (42,44,46,48) and a respective sliding surface (50,52,54,56), where the crimping surfaces (42,44,46,48) together form a crimping opening (36), said crimping surface (42,44,46,48) of each crimping die (12,14,16,18) slidably abutting said sliding surface (50,52,54,56), of an adjacent die, where the crimping dies (12,14,16,18) have pivot points (29,31,33,35) that are arranged movable relative to the body of the crimping tool (2) and where a linkage (11) is arranged to guide the movement of the pivot points (29,31,33,35) of the crimping dies (12,14,16,18) relative to the body (4) of the crimping tool (2) producing a movement between the pivot points (29,31,33,35) of the crimping dies (12,14,16,18) and the body (4) of the crimping tool (2), and where the crimping dies (12,14,16,18) have tooth flanks (66,68) arranged to cooperate with tooth flanks (60,62) in the body (4) of the crimping tool (2), whereby the crimping surfaces (42,44,46,48) of the crimping dies (12,14,16,18) are arranged to act on the workpiece (19) to be crimped without the crimping dies (12,14,16,18) sliding on the surface of the body (4) of the tool (2) thereby decreasing the wear between the crimping dies (12,14,16,18) and the body (4) of the tool (2.