Electric Bolt Setting Tool Spring Energy Adjustment
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Solution Overview
Problem
Existing electrically operable bolt-firing tools lack a simple and cost-effective method to adjust and manage energy storage and release for varying fastening tasks, as solutions for fuel-operated tools are not readily transferable.
Innovation Solution
An electrically operable bolt-firing tool with a spring device that interacts with an intermediate storage energy adjustment system, allowing for manual and automatic adjustment of spring tension and deflection, using an electric drive and control devices to optimize energy storage and release based on fastening requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the spring device is fully tensioned before every setting operation to ensure sufficient energy, then the fastening quality is improved, but the battery consumption increases and service life decreases
Solution Approach 1:
The patent implements dynamic energy adjustment by allowing the spring pre-tensioning force to be varied based on actual task requirements. The control device adjusts the spring pre-tensioning force according to different fastening scenarios, enabling the system to use minimal necessary energy while maintaining adequate fastening quality, thus resolving the contradiction between reliability and energy consumption.
2Power
If the spring device is fully tensioned to provide maximum energy, then the fastening power is sufficient, but the device complexity increases due to additional adjustment mechanisms
Solution Approach 1:
The control device serves multiple functions: it controls the electric drive, adjusts the spring pre-tensioning force, manages the driving-in process, and monitors energy consumption. By consolidating these functions into a single multi-functional control unit, the patent avoids adding separate complex adjustment mechanisms while still achieving variable energy output to maintain sufficient fastening power.
3Adaptability or versatility
If the spring device is tensioned to high energy levels for difficult fastening tasks, then the adaptability to different substrates is improved, but the loss of energy through dissipation increases
Solution Approach 1:
The patent changes the energy parameter dynamically by adjusting the spring pre-tensioning force according to the specific fastening task and substrate conditions. Rather than always using maximum energy, the system adjusts the spring force parameter to match the minimum required level, thereby maintaining adaptability to different substrates while minimizing energy dissipation and improving overall energy efficiency.
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
Enables precise adjustment of energy storage and release, improving fastening quality by providing optimal energy for each task, reducing excess energy dissipation, and extending the device's service life and battery range.
Implementation Method 1
a spring device (10) which serves as an intermediate store in order to store energy from an electric drive (25) in the bolt-firing tool (1; 41; 51), which energy can be released suddenly during a setting process
Implementation Method 2
The electric drive serves, for example with the interposition of a belt drive, to tension the spring device
Implementation Method 3
The spring device can be tensioned via a threaded spindle and a spindle nut guided on the threaded spindle in a manner secured against torsion. In this case, for example, a rotary movement of the threaded spindle generated by the electric drive is converted into a linear movement or translational movement of the spindle nut
Data Source
Figure 1
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AI summary
The invention relates to an electrically operated bolt setting tool (1) for setting fasteners (3), with a spring device (10) that serves as an intermediate storage device to store energy from an electric drive (25) in the bolt setting tool (1), which can be released abruptly during a setting process. To create an electrically operated bolt setting tool that is simple in design and inexpensive to manufacture and/or operate or put into operation, the spring device (10) interacts with an intermediate storage energy adjustment device.