Laser Cutting Path Sequencing to Prevent Scrap Head Interference
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Solution Overview
Problem
Conventional laser machining apparatuses require skilled operators to manually set processing orders to prevent scrap from interfering with the laser head, which can lead to damage, especially when the scrap rises and interferes with the laser head during subsequent processing.
Innovation Solution
A computer-aided manufacturing (CAM) system determines an optimal processing path and order for the laser machining apparatus, automatically adjusting the cutting path to prevent scrap interference by analyzing the size and position of opening forming regions relative to skids, and adding an interference width to the cutting path where necessary, ensuring the scrap does not obstruct the laser head.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual processing order setting is used to prevent scrap interference, then laser head safety is improved, but operator skill dependency and operation complexity increase
Solution Approach 1:
The system performs automatic processing order determination and scrap interference prevention without requiring operator intervention. The control device automatically analyzes opening forming region positions, determines optimal processing sequences, and adjusts laser beam paths to avoid scrap interference, making the system self-sufficient and eliminating skill-dependent manual operations
Solution Approach 2:
The patent replaces manual operator judgment and decision-making with an automated control system that uses computer algorithms to determine processing orders. The control device substitutes human intelligence with automated computational methods, replacing the mechanical aspect of manual order setting with an intelligent automated system
2Extent of automation
If automated processing is implemented, then operator skill dependency is reduced, but scrap interference detection and prevention capability may worsen
Solution Approach 1:
The control device performs preliminary analysis of opening forming region positions and scrap generation predictions before actual processing begins. By determining the processing order in advance and pre-calculating potential scrap interference scenarios, the system prepares preventive measures beforehand, ensuring reliable scrap interference prevention while maintaining full automation
Solution Approach 2:
The system incorporates feedback mechanisms where the control device continuously monitors processing status, scrap positions, and laser head movements. Based on real-time feedback, the control device dynamically adjusts processing sequences and laser paths to prevent scrap interference, ensuring reliable operation while maintaining automated processing
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 automated prevention of scrap interference with the laser head, eliminating the need for manual processing order setting and ensuring safe operation without skilled operator intervention, thereby protecting the laser head and maintaining efficient machining.
Implementation Method 1
A laser machining apparatus irradiates, with a laser beam, a sheet metal mounted on a table
Data Source
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AI summary
An NC device 20 determines, in a case where a size of an opening forming region in a predetermined direction is smaller than a predetermined maximum value, that the opening forming region is a first opening forming region, and determines, in a case where the size of the opening forming region in the predetermined direction is larger than a predetermined minimum value, that the opening forming region is an opening forming region where a scrap interfering with a laser head 16 is formed. In a case where the size of the opening forming region in the predetermined direction is smaller than the predetermined maximum value and larger than the predetermined minimum value, the device determines that the opening forming region in an interference width added region obtaining by adding a predetermined interference width to the opening forming region is a second opening forming region, and processes the second opening forming region prior to processing of the first opening forming region.