Electromagnetic Setting Tool With Transverse Piston Coil
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Solution Overview
Problem
Existing setting tools for driving fastening elements into substrates often lack efficiency and consistency in their setting quality.
Innovation Solution
A hand-held setting tool with a stator and a working piston, driven by a system comprising a piston coil and stator coils, where the piston coil is oriented transversely to the working axis, and a switching circuit for rapid discharge, enabling efficient acceleration of the working piston.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional drive system with axial coil orientation is used, then the structure is simple, but the setting quality and efficiency are insufficient
Solution Approach 1:
The patent transitions from axial coil orientation (parallel to working axis) to transverse coil orientation (perpendicular to working axis). This dimensional change in coil arrangement enables improved magnetic field control and piston acceleration, directly enhancing setting quality while maintaining manageable structural complexity through the guide element system
2Productivity
If rapid discharge is implemented for high acceleration, then productivity increases, but energy control becomes more difficult
Solution Approach 1:
The switching circuit monitors and controls the rapid discharge process, enabling precise timing and duration of current flow through the coils. This feedback mechanism ensures optimal energy utilization during the acceleration phase, achieving high productivity while maintaining efficient energy control through active management of the discharge parameters
3Measurement precision
If transverse coil orientation is used, then magnetic field control improves, but manufacturing complexity increases
Solution Approach 1:
The drive system is divided into modular components: the piston coil assembly with transverse orientation, the stator coils, and the guide element system. This segmentation allows each component to be manufactured and adjusted independently, facilitating precise magnetic field control through coordinated assembly while managing overall manufacturing complexity through standardized interfaces and modular construction
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 achieves high efficiency and improved setting quality by generating controlled magnetic fields through the coordinated use of piston and stator coils, ensuring precise and effective driving of fastening elements into substrates.
Implementation Method 1
a drive, which has an electrical capacitor, a squirrel-cage rotor arranged on the working piston and an excitation coil, which during rapid discharge of the capacitor is flowed through by current and generates a magnetic field that accelerates the working piston
Implementation Method 2
the drive comprises a piston coil arranged on the working piston and a first stator coil arranged on the stator, the piston coil having a piston coil axis, which is oriented transversely to the working axis
Data Source
AI summary
A tool for working a substrate, the tool having a stator and a working piston, which is intended to move relative to the stator along a working axis, also having a drive, which is intended to drive the working piston from a starting position along the working axis to the substrate, the drive comprising a piston coil arranged on the working piston and a first stator coil arranged on the stator, the piston coil having a piston coil axis, which is oriented transversely, to the working axis.