Beam Processing Machine Vibration Damping Elements
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Solution Overview
Problem
Beam processing machines face challenges in maintaining high contour accuracy and reducing wave cut phenomena due to the excitation of workpieces caused by the dynamic movement of heavy masses, which limits machine dynamics and increases processing times.
Innovation Solution
Incorporating damping elements in the vibration-transmitting connecting path between the beam tool and the workpiece rest, preferably arranged in parallel and adapted for decoupling vibrations, to minimize workpiece excitation and maintain high machine dynamics without clamping the workpiece.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the workpiece is not clamped and lies loosely on the workpiece rest, then the machine dynamics are limited and processing times increase, but the workpiece excitation and wave cut phenomenon are reduced
Solution Approach 1:
The patent introduces damping elements as intermediary components between the workpiece rest and the workpiece. These damping elements selectively attenuate vibration frequencies that cause wave cut and workpiece excitation while allowing other frequencies necessary for high-speed processing to pass through. This mediator approach enables simultaneous achievement of high processing speeds and high contour accuracy without requiring workpiece clamping.
2Manufacturing precision
If clamping devices are added to fix the workpiece during processing, then contour accuracy improves, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts the vibration damping function from the traditional clamping device concept. Instead of using mechanical clamping elements to fix the workpiece, the invention uses dedicated damping elements that are integrated into the workpiece rest structure. This extraction eliminates the need for complex clamping mechanisms while achieving the same goal of preventing workpiece excitation and wave cut.
Solution Approach 2:
The damping elements are merged with the workpiece rest structure, creating an integrated system where the workpiece rest simultaneously provides support and vibration damping functions. This merging simplifies the overall machine structure by eliminating separate clamping devices while maintaining high contour accuracy through reduced workpiece excitation.
3Productivity
If the beam tool moves with high dynamics, then processing time decreases, but workpiece excitation and wave cut phenomenon increase
Solution Approach 1:
The patent applies mechanical vibration principles by using damping elements with specific damping characteristics tailored to the beam tool's operating frequencies. The damping elements are designed to target and attenuate the specific vibration frequencies generated by high-speed beam tool movement, allowing the system to maintain high dynamics while preventing resonant vibrations that cause wave cut and reduce contour accuracy.
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
This solution allows for high beam tool dynamics with reduced workpiece excitation, enhancing contour accuracy and processing speed while being simple to design and manufacture, and capable of retrofitting existing installations.
Implementation Method 1
at least one damping element, preferably a plurality of damping elements connected in parallel, is/are incorporated in a vibration-transmitting connecting path between the beam tool and the rest surface for workpieces defined by a workpiece rest
Data Source
AI summary
Beam processing machines such as laser beam or fluid jet processing machines (1) for processing workpieces (5) include a frame (3), a workpiece rest (4) held by the frame (3), and a beam tool (2) movable relative to the workpiece rest (4). Incorporated in a vibration-transmitting connecting path between the beam tool and the rest surface for workpieces defined by the workpiece rest are a plurality of damping elements that decouple vibrations between the rest surface and beam tool, its mounting, or the frame.