Laser Cutting Pallet Air-Spring Isolation for Contour Accuracy
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Solution Overview
Problem
Laser cutting machines experience vibrations during acceleration and deceleration of the machining head, leading to intolerable contour mistakes in plate-shaped workpieces due to the transmission of impulse-like force effects, which reduces machining accuracy and efficiency.
Innovation Solution
The use of an air spring device to lift and decouple the pallet from the pallet carrier, isolating the pallet from vibrations caused by the machining head's movement dynamics, allowing for increased movement dynamics and reduced resilient displacements of the workpiece, thereby enhancing accuracy and productivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the machining head moves with high acceleration and deceleration to increase productivity, then the movement dynamics and productivity are improved, but impulse-like force effects cause vibrations that lead to intolerable contour mistakes in the workpiece
Solution Approach 1:
The patent introduces an air spring device as an intermediary element between the pallet and the machine base framework. This air spring acts as a vibration-isolating mediator that absorbs impulse-like force effects from the machining head's acceleration and deceleration, preventing these vibrations from being transmitted to the pallet and workpiece, thereby maintaining contour accuracy while allowing high movement dynamics
Solution Approach 2:
The patent employs pneumatic technology through the use of an air spring device to solve the vibration problem. The air spring utilizes pneumatic pressure to provide a compliant support that isolates the pallet from vibration-exciting forces, enabling high-speed machining head movements without compromising workpiece contour precision
2Manufacturing precision
If the movement dynamics of the machining head are reduced to reduce vibrations and improve accuracy, then the contour accuracy is improved, but the productivity and efficiency of the machine change considerably
Solution Approach 1:
The air spring device serves as a vibration-isolating intermediary that allows the system to maintain high movement dynamics while protecting the workpiece from harmful vibrations. This mediator enables the decoupling of machining head dynamics from pallet stability, resolving the contradiction between speed and precision
3Manufacturing precision
If damping elements are provided between the machining head and workpiece support to reduce vibrations, then the machining quality is improved, but the device complexity increases
Solution Approach 1:
The patent extracts the vibration isolation function from the complex damping element system and implements it through a simpler air spring device. By removing the need for multiple damping elements and their complex bracing structures, the solution maintains machining quality while significantly reducing device complexity
Solution Approach 2:
The air spring provides a simplified pneumatic solution that replaces complex mechanical damping systems. The air spring's inherent vibration isolation properties eliminate the need for multiple damping elements, braces, and complex mounting structures, reducing overall device complexity while maintaining machining quality
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 effectively isolates the pallet from vibration-exciting forces, reducing accuracy-reducing resilient displacements and allowing for increased movement dynamics of the machining head, resulting in improved productivity and reduced contour mistakes during the cutting of plate-shaped materials.
Implementation Method 1
an air spring device has a very low spring stiffness and the pallet forms a large inertial mass with the resting plate-shaped material, only an extremely low force effect is transmitted to the pallet in the decoupled state
Implementation Method 2
the pallet forms a large inertial mass with the resting plate-shaped material, only an extremely low force effect is transmitted to the pallet in the decoupled state
Data Source
AI summary
The invention relates to a method for the cutting processing of a panel-type material in a machine which comprises a processing station in a machine base frame, and the processing station is assigned a loading and unloading station. The panel-type material is laid on a pallet which is movable between the processing station and the loading and unloading station, and the pallet is moved into the processing station for subsequent processing and is positioned on a pallet carrier of the machine base frame for the subsequent processing of the panel-type material, wherein, before the start of the processing process of the panel-type material by the processing unit, the pallet is lifted from the pallet carrier by an air spring device and is positioned in a manner decoupled from the pallet carrier, and after the processing process of the panel-type material, the pallet is coupled to the pallet carrier.