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Optimal selection method for multi-beam water cutting feed path based on Petri network

A technology of tool path and beam, applied in the field of CNC water jet cutting processing

Active Publication Date: 2012-07-25
SOUTHEAST UNIV
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Problems solved by technology

In this sense, it is very important to provide a multi-beam waterjet cutting tool path optimization method, but there is no such method yet

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  • Optimal selection method for multi-beam water cutting feed path based on Petri network
  • Optimal selection method for multi-beam water cutting feed path based on Petri network
  • Optimal selection method for multi-beam water cutting feed path based on Petri network

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Embodiment Construction

[0045] The specific embodiments of the present invention will be described in detail below, so as to more clearly show the stated and other objectives, features and advantages of the present invention.

[0046] The present invention refers to a method for optimizing the tool path of a multi-beam water cutting process for large-sized workpieces. The multi-beam water cutting process is realized by a multi-beam water jet cutting system. The large-size The workpiece usually refers to the workpiece to be cut with a length of 3-12 meters, and also includes those workpieces with a length greater than 12 meters, but the width of the workpiece must be less than or equal to the width of the multi-beam system. Water jet cutting refers to the process of cutting workpieces by using the erosive force of high-pressure ultra-high-pressure water clusters. Each water cutting process is performed by a beam system (beam and water cutting head or nozzle installed on it), and the multi-beam water c...

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Abstract

The invention discloses an optimal selection method for a multi-beam water cutting feed path based on a Petri network. A multi-beam system cutting process is simulated with a Petri network token playing function to optimally select a feed path arrangement scheme with the least total times of two adjacent beam systems which need to be coordinated. The method comprises the following steps: inputting a computer-aided design (CAD) field of a large file to be cut; decomposing into the CAD subfile of the to-be-cut part of each beam system; further importing the CAD subfile into a computer aided manufacturing (CAM) software; setting the feed path of each beam system; for the same processing task, setting a plurality of possible feed paths; correspondingly generating a plurality of Petri network models of multiple cutting processes by various feed path schemes; by token playing, calculating the coordination times required by multiple cutting process given by each feed path; and selecting the feed path of the minimum total times of the two adjacent beam systems which need to be coordinated for generating a numerical control code.

Description

technical field [0001] The invention relates to the field of numerical control water jet cutting processing, in particular to a method for optimizing the tool path of a multi-beam water jet cutting machine tool for large workpieces. Background technique [0002] Waterjet cutting (abbreviated as water cutting) is a cold point cutting technology, which is obviously superior to other cutting technologies due to the characteristics of no thermal deformation and additional stress deformation, no selectivity of cutting materials, fast cutting speed, and no pollution. Such as hard tool cutting, laser cutting, EDM cutting, plasma cutting, etc. Water cutting technology has been widely used in construction, decoration, machinery, aerospace, communication, automobile, chemical, food and other industries, cutting more than 500 types of materials, such as steel, titanium, alloy, composite materials, marble, leather Wait. [0003] In recent years, the demand for water cutting of large w...

Claims

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Application Information

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IPC IPC(8): B24C7/00
Inventor 李俊戴先中孙维郭涛李正权
Owner SOUTHEAST UNIV
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