Panel Cutting Sequence for Vacuum Holding of Small Parts
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Solution Overview
Problem
Current panel cutting machines face challenges in maintaining small parts in position during cutting, leading to potential displacement and incorrect cuts due to reduced vacuum force, which affects the efficiency and accuracy of the cutting process.
Innovation Solution
A method that determines the optimal cutting sequence by calculating the grip factor of each piece, selecting the starting point, and adjusting the cutting path to maximize holding, using a combination of reference axes and angular references to ensure precise positioning and minimize displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a high rotation speed end mill is used to cut panel parts, then cutting efficiency is improved, but the stress on small parts increases causing displacement and incorrect cuts
Solution Approach 1:
The patent applies preliminary action by determining an optimal cutting sequence before actual cutting begins. The system calculates grip factors for all pieces and establishes a cutting order that maximizes vacuum holding throughout the process. This pre-planned sequence ensures that pieces are cut in an order that maintains their stability, preventing displacement during high-speed cutting operations.
Solution Approach 2:
The patent implements dynamics by making the cutting sequence adaptive rather than fixed. The system dynamically adjusts the cutting order based on real-time calculations of grip factors for each piece. As cutting progresses and the panel configuration changes, the system can recalculate and adjust the optimal sequence, allowing the process to adapt to changing conditions and maintain precision throughout.
2Productivity
If small parts are cut from the panel, then panel yield is maximized, but the vacuum holding force on these parts is reduced leading to displacement
Solution Approach 1:
The patent applies parameter changes by calculating and utilizing grip factors as a key parameter for determining cutting sequence. The grip factor quantifies the vacuum holding effectiveness for each piece based on its size, shape, and position. By changing the cutting sequence parameter based on grip factor values, the system optimizes position stability for small parts while maintaining high panel yield.
Solution Approach 2:
The system incorporates feedback by continuously evaluating the grip factor for each piece during sequence determination. The cutting sequence is based on feedback from the calculated grip factors, ensuring that pieces with lower vacuum holding capacity are cut at appropriate times when their stability can be maintained. This feedback-driven approach ensures reliable positioning throughout the cutting process.
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 method enhances the grip and stability of small pieces during cutting, resulting in more precise and efficient cuts, reducing waste and improving the overall performance of panel cutting operations.
Implementation Method 1
The panel to be worked rests on a sacrificial panel and is held in position by means capable of creating vacuum. The panel to be machined is placed on top of the sacrificial panel, which in its turn is placed on top of the means for making the vacuum. By transpiration through the sacrificial panel, the panel to be worked is held in place.
Data Source
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AI summary
The present invention relates to a method for cutting a panel (P), such as a panel made of wood, plastic, fiberglass, and the like, wherein said panel (P) is arranged on a plane referred to with respect to a first (X) and a second reference axis (Y), and to an angular reference (O), on which the angle of said panel (P) is arranged, wherein said panel (P) has to be cut into a plurality of pieces (Ri), and wherein said method comprises the step of: A. carrying out the cutting sequence by proximity of each piece (Ri) to be cut, so as to maximize the holding of said panel (P) in said cutting sequence. The present invention also relates to a working center (1) configured to carry out the method for cutting a panel (P).