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Curved surface model path planning method applied to laser surface etching

A surface etching and path planning technology, applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problem of less related algorithms, and achieve the effect of less calculation, moderate quantity and high precision

Active Publication Date: 2019-07-23
无锡超通智能制造技术研究院有限公司
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  • Application Information

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Problems solved by technology

But for 3D surface filling, there are fewer related algorithms

Method used

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  • Curved surface model path planning method applied to laser surface etching
  • Curved surface model path planning method applied to laser surface etching
  • Curved surface model path planning method applied to laser surface etching

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Embodiment Construction

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] like figure 1 Shown: the present invention provides a surface model path planning method applied to laser surface etching, the method takes a three-dimensional curved surface 1 as an input, a three-dimensional scanning path 12 on the curved surface as an output, and uses multiple parameters to control the accuracy of the path planning and operation volume. The parameters include the vertical distance of the waypoint 7 and the horizontal distance of the waypoint 9. In addition, the sparse parameter map cannot be represented.

[0038] The steps of path planning are as follows:

[0039] 1) Form a bounding box

[0040] Project the three-dimensional surface 1 to form a bounded plane 2 consisting of a series of triangles, and find the extent x of the bounded plane 2 min , x max , y min and y max , forming a rectangular bounding box 3 to enclose it...

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Abstract

The invention discloses a curved surface model path planning method applied to laser surface etching. The method is characterized in that a three-dimensional curved surface model which is establishedin commercial software and is stored into an stl format serves are an input, a scanning path formed by a three-dimensional point set is used as an output, and the precision and the calculation amountof path planning are controlled by using a plurality of parameters, wherein the relevant parameters comprise a path point x direction distance parameter dx, a path point y direction distance parameterdy and a vertex sparse parameter delta k. According to the method, the direct three-dimensional path generation on the non-closed stl curved surface is realized, and compared with a traditional method in which the curved surface is firstly layered, and then plane path planning is carried out, the curved surface model path planning method has the advantages that a middle step is omitted, and the calculation amount is greatly reduced.

Description

technical field [0001] The invention is applied to the field of laser surface etching, in particular to a curved surface model path planning method applied to laser surface etching. Background technique [0002] In laser processing technology, path planning is the most important part of data processing. Path planning is required in the fields of laser cutting, welding, marking, and repairing. The quality of the path planning method directly affects the quality and speed of processing. In the field of laser cutting and welding, only the outline of the pattern needs to be etched, and the algorithms for realizing this function are various and quite mature. Laser surface etching is different from this. In addition to the need to etch the outline of the figure, it is also necessary to fill the interior of the outline. At present, there are many algorithms for filling the two-dimensional plane, such as black and white map, seed filling method, ordered edge table method, etc. , th...

Claims

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Application Information

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IPC IPC(8): B23K26/362B23K26/70
CPCB23K26/362B23K26/702
Inventor 梅雪松谢亚杰王晓东李晓赵文振黄镇
Owner 无锡超通智能制造技术研究院有限公司
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