Fastening Tool With Ejector Suction for Nut Pieces
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Solution Overview
Problem
Existing fastening tools for HI-LOK fasteners require manual removal of broken nut pieces, which is time-consuming and disrupts the assembly process, particularly in applications like aircraft assembly.
Innovation Solution
A fastening tool equipped with a socket wrench, detachable structure, suction port, and coupling member that allows the nut piece to be suctioned and collected automatically, using a rotational drive device to rotate the nut and generate negative pressure for collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual removal of broken nut pieces is used, then the fastening operation can be completed, but the assembly process is disrupted and productivity decreases
Solution Approach 1:
The fastening tool automatically removes broken nut pieces through its own suction system without requiring external manual intervention. The suction port and ejector work together to clear debris from the fastening area, allowing the tool to service itself during operation and maintain continuous productivity
Solution Approach 2:
The suction port acts as an intermediary element between the fastening area and the debris collection system. It captures broken nut pieces and transfers them to the ejector, which then removes them from the workspace, eliminating the need for manual removal operations
2Extent of automation
If a suction system is added to the fastening tool, then automatic removal of nut pieces is achieved, but the device complexity increases
Solution Approach 1:
The suction system components (suction port, flow path, and ejector) are integrated into the existing fastening tool structure. The suction port is formed on the pipe, the flow path is incorporated into the coupler, and the ejector is coupled to the rotational drive device, merging multiple functions into a unified tool assembly
Solution Approach 2:
The rotational drive device serves dual purposes: it provides rotational force for fastening the nut and simultaneously powers the ejector for debris removal. The coupler structure serves both to connect components and to provide flow paths for suction, reducing the need for separate dedicated components
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
Eliminates the need for manual removal of broken nut pieces, enhancing productivity by allowing continuous assembly operations.
Implementation Method 1
a suction port, formed on a side of the pipe, suctions a piece of a nut broken by a specified torque
Implementation Method 2
the flow path suctions the piece of the nut from the suction port of the pipe rotating with torque generated by the rotational drive device with an ejector
Data Source
AI summary
A fastening tool for fastening a nut to a bolt includes a pipe and a coupling member. The nut breaks at specified torque. The pipe has a socket wrench, a detachable structure and a suction port. The detachable structure is for attaching to and detaching from a rotor of a rotational drive device. The suction port is for suctioning a piece of the nut broken by the specified torque. The coupling member has a flow path, a first coupling portion and a second coupling portion. The flow path is for suctioning the piece of the nut from the suction port. The piece of the nut is suctioned from the suction port with an ejector. The first coupling portion couples the coupling member to a casing of the rotational drive device. The second coupling portion couples the coupling member to a duct of the ejector.