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Cutting head control method and system of plasma cutting machine
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A technology of a plasma cutting machine and a control method is applied in the field of the cutting head control method and system of the plasma cutting machine to achieve the effect of shortening the displacement path and shortening the total cutting time.
Active Publication Date: 2021-08-31
CHIZHOU UNIV
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[0006] Aiming at the deficiencies of the prior art, the present invention provides a cutting head control method and system of a plasma cutting machine, which solves the problem that the cutting head needs to be reset before starting cutting when switching between different cutting patterns
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Embodiment 1
[0072] Such as figure 1 As shown, a cutting head control method of a plasma cutting machine, the method includes:
[0073] S1. Obtain the initial position of the cutting head and the cutting task table, the cutting task table includes a set of cutting patterns, the number of each cutting pattern and a set of sub-path diagrams corresponding to each cutting pattern, and set the first cycle parameter i, initialize The first cycle parameter, let i=1;
[0074] Based on the subpath graph, obtain the subpath function corresponding to the subpath graph;
[0075] Based on the sub-path graph, obtain the corner point set of the sub-path graph; obtain the corner point set group T={V corresponding to all cutting patterns 1 , V 2 ,...};
[0076] S2. Select the corner point closest to the initial position of the cutting head from T as the primary corner point; obtain the cutting pattern corresponding to the primary corner point as the i-th cutting pattern, and determine the corresponding...
Embodiment 2
[0120] The present invention also proposes a cutting head control system for a plasma cutting machine, including a cutting task table extraction module, a sub-path function acquisition module, a sub-path graph corner point acquisition module, a primary corner point selection module, a cutting strategy generation module, a total cutting Policy acquisition module
[0121] The cutting task list extraction module is used to obtain the cutting task list and the initial position of the cutting head;
[0122] The sub-path function acquisition module is used to obtain the sub-path function corresponding to the sub-path graph based on the sub-path graph in the cutting task table;
[0123] The sub-path map corner point acquisition module is used to obtain the corner point set of the sub-path map based on the sub-path map; obtain the corner point set group T={V corresponding to all cutting patterns 1 , V 2 ,...};
[0124] The primary corner point selection module is used to screen out...
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Abstract
The invention provides a cutting head control method and system of a plasma cutting machine. Based on the cutting task table, the sub-path function and the corner point set of the sub-path graph are determined; the first corner point is determined by selecting the corner point closest to the cutting head. Cut the cutting pattern, then determine the cutting order of all sub-path graphs in the first cutting pattern, and obtain the cutting strategy of the cutting pattern based on the cutting order; use the updated initial position of the cutting head as the next cutting pattern The position of the cutting head, and so on, can get the cutting strategy of all the cutting patterns in the cutting task list, the plasma cutting machine can cut the cutting patterns according to the value of i from small to large, and the sub-path diagram in each cutting pattern Cut according to the corresponding cutting strategy. The cutting head does not need to be reset before cutting the next cutting pattern, thereby shortening the total cutting time.
Description
technical field [0001] The invention relates to the technical field of plasma cutting, in particular to a method and system for controlling a cutting head of a plasma cutting machine. Background technique [0002] In the actual cutting process, the cutting time plays an important role in improving production efficiency and reducing production costs. The main advantage of the plasma cutting machine is that when cutting metals with small thickness, the plasma cutting speed is fast, especially when cutting ordinary carbon. When cutting thin steel plates, the speed can reach 5 to 6 times that of the oxygen cutting method. [0003] When the existing plasma cutting machine cuts, the cutting head starts to move from the initial position, and starts cutting when it moves to the position of the sub-path diagram. After completing the cutting of the workpiece with the same cutting pattern, the cutting head returns to the The initial position, and then start moving from the initial pos...
Claims
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