Blind Fastener Setting Tool With Integrated Feed and Precise Load Control
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Solution Overview
Problem
Existing blind fastener setting tools are cumbersome, require multiple steps, and lack flexibility, making them inefficient and time-consuming for setting blind fasteners in thin-walled components like sheet metal or aluminum profiles in motor vehicle manufacturing.
Innovation Solution
A compact, automated blind fastener setting device with two electric motors and a solid roller screw system that allows precise control of position and load, integrated with a clamping device for efficient engagement and crimping of blind fasteners, reducing the number of steps and improving control over the setting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing blind fastener setting tools are used, then the setting operation can be performed, but the tools are cumbersome and require multiple steps making them inefficient and time-consuming
Solution Approach 1:
The patent combines the driving function and the setting function into a single integrated tool. The driving device and setting device work together in one unified structure, eliminating the need for separate delivery mechanisms and reducing the number of operational steps. This merging of functions directly addresses the contradiction by improving productivity through streamlined operations while avoiding increased device complexity.
Solution Approach 2:
The setting tool is designed with multi-functionality, where a single tool performs both the driving of the blind fastener and the actual setting operation. The tool can adapt to different blind fastener types and workpiece configurations, reducing the need for multiple specialized tools. This universal design improves productivity by eliminating tool changes and setup steps while maintaining manageable device complexity.
2Adaptability or versatility
If existing setting tools are used, then blind fasteners can be set, but the process lacks flexibility and adaptability for various workpieces
Solution Approach 1:
The patent incorporates adjustable and adaptive features in the setting tool design. The driving device and setting device can be adjusted to accommodate different blind fastener dimensions, workpiece materials, and thickness variations. This dynamic adaptability allows the tool to handle various workpiece types without requiring complex manual reconfiguration, thereby improving ease of operation while maintaining high adaptability.
Solution Approach 2:
The setting tool allows for parameter adjustments such as driving force, setting force, and positional adjustments to adapt to different workpiece requirements. These parameter changes can be made through simple controls rather than complex mechanical reconfigurations, improving ease of operation while maintaining versatility across different workpiece types and blind fastener specifications.
3Manufacturing precision
If automated setting is implemented, then precision and control can be improved, but the device becomes more complex and time-consuming
Solution Approach 1:
The patent designs the automated setting system to be self-regulating and self-contained. The driving device automatically positions and drives the blind fastener, while the setting device automatically applies the required setting force. The system includes built-in sensors and control mechanisms that self-adjust during operation, eliminating the need for complex external control systems. This self-service approach achieves high manufacturing precision while keeping the automation system relatively simple and efficient.
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 fast, reliable, and precise setting of blind fasteners, reducing production time and improving the robustness and adaptability of the setting tool for various workpieces, while minimizing the need for additional delivery mechanisms and allowing for exact control of the joining parameters.
Implementation Method 1
The tool housing portion comprises a solid roller screw connected to the tool shaft
Implementation Method 2
two electric motors and a solid roller screw system that allows precise control of position and load
Implementation Method 3
a compression of the rivet shank occurs. A bead or a bulge is formed at a desired deformation point
Data Source
AI summary
A setting tool comprising: a first electric motor with a first drive shaft, which is arranged in a first housing portion and is connected to a tool housing portion via a first transmission; a tool shaft connected to a screw tool, and the screw tool is movable between a retracted and an extended position; a feeder with a fastener delivery tube, the delivery tube for delivering blind fasteners in front of the screw tool when in the retracted position; a second electric motor with a second drive shaft is arranged in a second housing portion and is connected to the tool housing portion via a second transmission; and the delivery tube merges with the tool housing portion through a receiver assembly, the receiver assembly comprising an interface channel connecting the delivery tube with the tool housing portion, such that the screw tool can engage with the blind fastener.