Magnetic Press Brake Tool Coupling for Safe Vertical Exchange
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Solution Overview
Problem
Press brake tool systems face challenges in securely exchanging forming tools on the upper table without risking accidental falls, due to cumbersome horizontal exchange processes and safety risks associated with handling heavy tools.
Innovation Solution
A magnetic safety mechanism with a releasable magnetic coupling assembly is introduced, allowing for secure engagement and disengagement of tools from the tool holder, using magnetic assemblies and an armature to modulate the magnetic flux coupling, enabling easy tool exchange without the need for additional clamping support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional clamping mechanisms are used to secure forming tools, then tools can be held securely, but tool exchange becomes cumbersome and time-consuming
Solution Approach 1:
The patent replaces traditional mechanical clamping mechanisms with a magnetic coupling system. The magnetic coupling assembly uses magnetic fields to secure forming tools to the upper table, eliminating the need for complex mechanical clamps and levers. This substitution dramatically simplifies the securing mechanism while enabling rapid tool exchange through simple approach and release actions.
Solution Approach 2:
The patent utilizes controllable magnetic field strength as a variable parameter. By adjusting the magnetic field strength between the magnetic coupling assembly and the forming tool, the system can transition between strongly secured (high magnetic field) and easily released (low magnetic field) states. This parameter control enables rapid tool exchange without complex mechanical operations.
2Ease of operation
If horizontal exchange method is used, then tools can be removed from upper table, but neighboring clamps interfere with removal process
Solution Approach 1:
The magnetic coupling system eliminates the need for physical clamp manipulation during tool removal. Instead of sliding tools past mechanical clamps, the magnetic field can be deactivated to release the tool, allowing vertical or diagonal removal paths that avoid interference from neighboring clamping mechanisms.
3Productivity
If vertical removal method is used, then tool exchange may be simplified, but safety risks increase due to heavy tools falling
Solution Approach 1:
The magnetic coupling assembly provides preliminary securing of the forming tool to the upper table before any removal action occurs. The magnetic field maintains continuous holding force during the tool exchange process, preventing accidental drops. This preliminary magnetic securing acts as a safety mechanism that eliminates the falling tool hazard while enabling efficient vertical exchange methods.
4Reliability
If safety tangs and latches are used, then tools can be secured safely, but manipulation required increases complexity
Solution Approach 1:
The patent replaces mechanical safety tangs, latches, and straps with a magnetic coupling system. The magnetic field provides automatic securing when the forming tool approaches the upper table and automatic release when the field is deactivated. This eliminates all manual manipulation of safety components while maintaining or enhancing security reliability through continuous magnetic holding force.
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 magnetic safety mechanism provides a secure and efficient method for exchanging tools, minimizing the risk of accidents by supporting the weight of the tools magnetically, allowing for quick and safe removal and installation of forming tools during operation.
Implementation Method 1
A magnetic safety mechanism with a releasable magnetic coupling assembly is introduced, allowing for secure engagement and disengagement of tools from the tool holder, using magnetic assemblies and an armature to modulate the magnetic flux coupling
Data Source
AI summary
A press brake tool comprises a tool body having a working end configured for operation on a workpiece and a coupling end configured for engagement with a tool holder. The working end is disposed along the tool body, generally opposite the coupling end. One or more magnetic elements can be configured to induce a magnetic coupling for selective engagement and disengagement of the coupling end of the tool body with the tool holder.