Wire Thread Insert Redressable Mounting Tang
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Solution Overview
Problem
Existing wire thread inserts require complex and labor-intensive installation processes, often necessitating the breaking of a mounting tang and precise orientation, which complicates automated installation and results in lower holding forces after installation.
Innovation Solution
A wire thread insert with a redressable moving tang that is bent back into the receiving thread, eliminating the need for breaking and ensuring a stable connection, allowing for easier and more reliable installation using a specialized tool that compresses the tang to prevent elastic reset, thus maintaining torque and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a mounting tang is broken off after installation, then the wire thread insert can be installed with proper orientation, but the installation process becomes complex and labor-intensive
Solution Approach 1:
The mounting tang is extracted as a separate functional element that can be removed after installation. The tang is designed to be broken off after serving its installation purpose, eliminating the need for complex automated detection and removal systems while maintaining ease of installation.
Solution Approach 2:
The mounting tang is pre-positioned on the wire thread insert before installation. This preliminary positioning ensures proper orientation during installation without requiring complex automated guidance systems, as the tang itself provides the orientation reference.
2Extent of automation
If the wire thread insert is installed with a mounting tang, then proper orientation is ensured, but automated installation requires excessive monitoring and recording
Solution Approach 1:
The mounting tang is designed as a disposable element that serves its orientation function during installation and is then broken off. This eliminates the need for expensive automated monitoring and recording systems, as the tang itself provides the necessary guidance and is discarded after use.
3Ease of operation
If the mounting tang is broken off, then the wire thread insert can be installed, but the holding force is reduced after installation
Solution Approach 1:
The mounting tang is extracted as a temporary installation aid only. The main body of the wire thread insert remains intact and fully engaged in the receiving thread, ensuring maximum holding force. The tang serves solely for installation and is removed afterward without affecting the structural integrity of the installed component.
4Manufacturing precision
If the wire thread insert requires precise orientation during installation, then proper installation is achieved, but the installation process becomes more complex
Solution Approach 1:
The mounting tang is designed with an asymmetric configuration that provides a unique orientation reference. This asymmetry ensures that the wire thread insert can only be installed in the correct orientation, eliminating the need for complex alignment procedures or automated guidance systems.
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
Facilitates easier and more reliable installation with reduced effort, maintaining high torque and accuracy, and eliminating the need for precise orientation and tang breaking, while ensuring a secure fit in the receiving thread.
Implementation Method 1
the moving tang is redressable from the interior of the helix via the bending portion
Implementation Method 2
a specialized tool that compresses the tang to prevent elastic reset
Data Source
AI summary
A wire thread insert comprises besides a cylindrical helix consisting of a plurality of coils a moving tang projecting into the interior of the helix for installing the wire thread insert into a receiving thread. The wire thread insert is connected to the cylindrical helix via a bending portion such that the moving tang can be redressed into the receiving thread after installation of the wire thread insert. The wire thread insert is installed by means of an installation tool with a mounting spindle, which installs the wire thread insert in the receiving thread via a moving shoulder and the moving tang. A compression blade provided at the mounting spindle bends the moving tang back into the receiving thread while the mounting spindle is removed from the installed wire thread insert.