Manual Tool for Clip Insertion with Force Feedback
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Solution Overview
Problem
In the automotive industry, the secure and efficient assembly of thin sheet-metal or plastic components, such as airbag panels, is challenging due to the difficulty in accessing screw positions, requiring specialized tools and increasing processing costs, and existing rapid-assembly systems lack assurance of correct fastener insertion.
Innovation Solution
A manual tool with a pusher and sensor system that detects the thrust force during clip insertion, using an electronic controller to provide feedback on correct or incorrect insertion based on force patterns, ensuring secure anchoring of snap-fixing elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional threaded connections (screws, bolts) are used for joining thin sheet-metal or plastic components, then the joining strength and reliability are improved, but the assembly time and processing cost increase significantly due to difficult access and specialized tools required
Solution Approach 1:
The invention changes the connection mechanism from threaded (screw/bolt) to rapid-assembly snap-fit elements, fundamentally altering the physical parameters of the joining method to enable faster assembly while maintaining adequate strength for non-critical applications
Solution Approach 2:
The invention extracts the threading mechanism entirely and replaces it with a simplified snap-fit element that consists of a body with elastic coupling, eliminating the need for complex threaded connections and specialized screwing tools
2Productivity
If simple manual insertion tools are used for rapid-assembly elements, then the assembly speed and cost are improved, but the assurance of correct insertion and safety cannot be obtained
Solution Approach 1:
The invention introduces sensor means that detect the thrust force during insertion and provide feedback signals to indicate whether the fastener has been correctly inserted, allowing operators to verify proper installation immediately without requiring specialized skills or reinspection
Solution Approach 2:
The invention replaces simple mechanical insertion tools with an enhanced tool that incorporates electronic sensor means and a control system, substituting pure mechanical action with a combined mechanical-electronic system that provides verification capability
3Ease of manufacture
If experimental tolerances are used for rapid-assembly elements in non-critical applications, then the ease of manufacture and assembly are improved, but the safety and reliability cannot be assured for critical applications like airbag systems
Solution Approach 1:
The invention uses sensor means to detect and evaluate the insertion process in real-time, providing objective verification that replaces subjective visual inspection and ensures consistent quality regardless of application criticality
Solution Approach 2:
The invention changes the verification method from visual inspection to electronic detection of thrust force parameters, enabling precise measurement and evaluation of insertion quality for both critical and non-critical 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 tool enables reliable and efficient insertion of snap-fixing elements into airbag panels, reducing assembly time and costs while ensuring safety through visual feedback, allowing operators to confirm correct positioning without specialized skills.
Implementation Method 1
comprising sensor means for detecting the thrust force of the pusher and an electronic controller that receives a force signal from this sensor means
Implementation Method 2
a clip (10) with elastic coupling to be anchored in an assembly seat (28)
Data Source
AI summary
A manual tool for inserting a clip (10) with elastic coupling in a seat, having a body (23) from which protrudes a pusher (32) for the clip and a sensor (34) for detecting the thrust force of the pusher. An electronic controller (24) receives a force signal from the sensor (34) and emits a signal (25, 26) reporting correct or incorrect insertion depending on the pattern of the force signal detected during the insertion of a clip. A movable gauging element is advanced during the insertion thrust of the clip to detect the correct expansion of the clip at the end of insertion.