CN101776882B - Method for generating laser cutting program - Google Patents
Method for generating laser cutting program Download PDFInfo
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- CN101776882B CN101776882B CN2010100444625A CN201010044462A CN101776882B CN 101776882 B CN101776882 B CN 101776882B CN 2010100444625 A CN2010100444625 A CN 2010100444625A CN 201010044462 A CN201010044462 A CN 201010044462A CN 101776882 B CN101776882 B CN 101776882B
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Abstract
The invention provides a method for generating a laser cutting program, which comprises: a step 1, acquiring digital graphic data of an object to be processed by using a camera and performing graphic pretreatment of the digital graph; step 2, manually defining a detection guide line in the pretreated digital graph, allowing a computer to extract coordinate data of graphic boundary points near the detection guide line under the guidance of the detection guide line, and forming a coordinate data link list of the coordinate data; a step 3, forming a graphic element data link list by using straight lines, arcs and parametric curve piecewise fitting coordinate data; step 4, smoothly connecting adjacent graphic elements by using a three-order Hermite parameter curve and filling the connected graphic elements into the graphic element data link list; step 5, converting the graphic element data link table into motion instruction of a laser cutter through post treatment and transmitting the motion instruction to a controller of the laser cutter to execute the motion instruction after the motion instruction is decoded. The method adopts machine vision and digital graphic processing technology to form main-machine interaction and therefore can generate a high-quality laser cutting program.
Description
Technical field
The present invention relates to cut machine work and programming field, relate in particular to a kind of generation method of laser cutting program.
Background technology
At present, the Laser Processing industry of China is an emerging industry.The processing of the required figure of cut, the machine code that in the past all collected is by hand carried out, and this manual operations is cumbersome, and work efficiency is lower.Along with the advantage of modern computer development, lathe cut Control Technique of Microcomputer also obtains people's attention day by day.Utilize Control Technique of Microcomputer, should create the interface environments of good man-machine interface, simplify and use operation, also will have and make up the machining software that is adapted to the required figure of lathe cut system controlled by computer, convert program in machine code automatically to reach.
The programmed method of laser cutting program of the prior art generally is image vector process softwares such as employing CoreDraw; Extract the peripheral profile of image; Generate contour vector figure; The programming the poster processing soft of friendship laser cutting machine is processed into the motion control instruction of laser head, and laser cutting machine is carried out steering order, cuts out corresponding picture shape.The defective of this method is when image outline indeterminate, and when obscure boundary was clear, existing method can only artificial draw outline, can't from image outline, extract coordinate points.
Summary of the invention
The objective of the invention is to, a kind of generation method of laser cutting program is provided, it adopts machine vision and digital image processing techniques, and man-machine interaction generates high-quality laser cutting program.
For being implemented in above-mentioned purpose, the present invention provides a kind of generation method of laser cutting program, and it comprises:
Step 1, employing camera obtain the DID of object to be processed, and this digital picture is carried out the image pre-service;
Step 2, the artificial appointment detected guide line in pretreated digital picture, near the image boundary point coordinate data of the computing machine detection guide line is extracted in the guiding that detects guide line down, and these coordinate datas are organized into the coordinate data chained list;
Step 3, adopt straight line, circular arc, and parametric line piecewise fitting coordinate data, form the primitive data chained list;
Step 4, adopt the smooth connection adjacent graphical elements of three rank Hermite parametric lines, and should connect pel and be filled in the primitive data chained list;
Step 5, this primitive data chained list aftertreatment is become the movement instruction of laser cutting machine, hand over cut machine controller decoding back to carry out.
Said image pre-service comprises image filtering or figure image intensifying.
Said image filtering comprises threshold values filtering, and different digital pictures adopts the different filtering method.
In the said step 2, the artificial drafting detected guide line near pretreated digital picture profile, and computing machine is detecting the equally spaced detection line of generation on the guide line, and this spacing distance is preestablished by system; On detection line, generate equidistant check point by the predefined value of system, ask the pixel difference of check point along detection line, decidable is the border at difference peak value place; Then borderline point coordinate data being organized into the coordinate data chained list by the numerical control chained list stores.
In the said step 4, with the curve of three rank Hermite interpolation in the interval of adjacent graphical elements structure smooth transition.
Beneficial effect of the present invention: the generation method of laser cutting program provided by the invention, it adopts machine vision and digital image processing techniques, man-machine interaction; Generate high-quality laser cutting program; It can effectively solve when image outline when indeterminate or obscure boundary is clear, and intelligence adopts artificial draw outline, can't from image outline, extract the drawback of coordinate points; The flow process that simplifies the operation is to a great extent enhanced productivity.
In order further to understand characteristic of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet accompanying drawing only provide reference and the explanation usefulness, be not to be used for the present invention is limited.
Description of drawings
Below in conjunction with accompanying drawing, describe in detail through specific embodiments of the invention, will make technical scheme of the present invention and other beneficial effect obvious.
In the accompanying drawing,
Fig. 1 is the schematic flow sheet of the generation method of laser cutting program of the present invention;
Fig. 2 is the original digital image of the present invention object one embodiment to be processed;
Fig. 3 is through the filtered image of threshold values among Fig. 2;
Fig. 4 is the synoptic diagram that frontier point extracts among Fig. 3;
Fig. 5 is the synoptic diagram of straight line, circular arc and the parametric line match of segmentation among Fig. 4;
Fig. 6 is for adopting the partial schematic diagram of the smooth connection of three rank Hermite parametric lines to Fig. 5;
Fig. 7 is the movement locus figure after the present invention's object to be processed generates;
Fig. 8 is for concealing the movement locus synoptic diagram after the image information among Fig. 7.
Embodiment
Technological means and the decorative effect thereof taked for further setting forth the present invention are described in detail below in conjunction with the preferred embodiments of the present invention and accompanying drawing thereof.
As shown in Figure 1, the present invention provides a kind of generation method of laser cutting program, and it comprises: step 1, employing camera obtain the DID of object to be processed, and this digital picture is carried out the image pre-service.This image pre-service comprises processing such as image filtering or figure image intensifying, and wherein, this image filtering comprises threshold values filtering, to different digital pictures, can adopt the different filtering method, makes image be convenient to more handle.Shown in Figure 2, be the original digital image of object one embodiment to be processed among the present invention, Fig. 3 is for to carry out the filtered digital picture of threshold values through step 1.
Step 2, the artificial appointment detected guide line in pretreated digital picture, near the image boundary point coordinate data of the computing machine detection guide line is extracted in the guiding that detects guide line down, and these coordinate datas are organized into the coordinate data chained list.As shown in Figure 4, the artificial drafting detected guide line near pretreated digital picture profile, and computing machine is detecting the equally spaced detection line of generation on the guide line, and this spacing distance is preestablished by system.On detection line, generate equidistant check point by the predefined value of system, 3X3 pixel corresponding on the check point is projected to this check point by the rectangle interpolation method, ask the pixel difference of check point along detection line, decidable is the border at difference peak value place.Again borderline point coordinate data being organized into the coordinate data chained list by the numerical control chained list at last stores.
Step 3, adopt straight line, circular arc, and parametric line piecewise fitting coordinate data, form the primitive data chained list.As shown in Figure 5, with the frontier point coordinate piecewise fitting section of extracting on the boundary profile of being in line, circular arc, and parametric line.
Step 4, adopt the smooth connection adjacent graphical elements of three rank Hermite parametric lines, and should connect pel and be filled in the primitive data chained list.As shown in Figure 6, be the partial schematic diagram that adopts three rank Hermite interpolation curve of structure smooth transition at the interval of adjacent graphical elements, Fig. 7 is and adopts this smooth transition movement locus figure after generating that withdraws cash.
Step 5, this primitive data chained list aftertreatment is become the movement instruction of laser cutting machine, hand over cut machine controller decoding back to carry out.The movement locus figure that generates among Fig. 7 is concealed after the aftertreatment of image information, can movement locus figure as shown in Figure 8, this movement locus is processed into the movement instruction of laser cutting machine, can hand over the decoding of cut machine controller.
In sum, the generation method of laser cutting program provided by the invention, it adopts machine vision and digital image processing techniques; Man-machine interaction generates high-quality laser cutting program, and it can effectively solve when image outline when indeterminate or obscure boundary is clear; Intelligence adopts artificial draw outline; Can't from image outline, extract the drawback of coordinate points, the flow process that simplifies the operation is to a great extent enhanced productivity.
The above; For the person of ordinary skill of the art; Can make other various corresponding changes and distortion according to technical scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection domain of accompanying Claim of the present invention.
Claims (5)
1. the generation method of a laser cutting program is characterized in that, comprising:
Step 1, employing camera obtain the DID of object to be processed, and this digital picture is carried out the image pre-service;
Step 2, the artificial appointment detected guide line in pretreated digital picture, near the image boundary point coordinate data of the computing machine detection guide line is extracted in the guiding that detects guide line down, and these coordinate datas are organized into the coordinate data chained list;
Step 3, adopt straight line, circular arc, and parametric line piecewise fitting coordinate data, form the primitive data chained list;
Step 4, adopt the smooth connection adjacent graphical elements of three rank Hermite parametric lines, and should connect pel and be filled in the primitive data chained list;
Step 5, this primitive data chained list aftertreatment is become the movement instruction of laser cutting machine, hand over cut machine controller decoding back to carry out.
2. the generation method of laser cutting program as claimed in claim 1 is characterized in that, said image pre-service comprises image filtering or figure image intensifying.
3. the generation method of laser cutting program as claimed in claim 2 is characterized in that, said image filtering comprises threshold values filtering, and different digital pictures adopts the different filtering method.
4. the generation method of laser cutting program as claimed in claim 1; It is characterized in that; In the said step 2; The artificial drafting detected guide line near pretreated digital picture profile, and computing machine is detecting the equally spaced detection line of generation on the guide line, and this spacing distance is preestablished by system; On detection line, generate equidistant check point by the predefined value of system, ask the pixel difference of check point along detection line, decidable is the border at difference peak value place; Then borderline point coordinate data being organized into the coordinate data chained list by the numerical control chained list stores and management.
5. the generation method of laser cutting program as claimed in claim 1 is characterized in that, in the said step 4, with the curve of three rank Hermite interpolation in the interval of adjacent graphical elements structure smooth transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100444625A CN101776882B (en) | 2010-01-19 | 2010-01-19 | Method for generating laser cutting program |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100444625A CN101776882B (en) | 2010-01-19 | 2010-01-19 | Method for generating laser cutting program |
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| CN101776882A CN101776882A (en) | 2010-07-14 |
| CN101776882B true CN101776882B (en) | 2012-05-30 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528208A (en) * | 2010-12-15 | 2012-07-04 | 中国科学院沈阳自动化研究所 | Laser measurement marking-off cutting method for big-width plate |
| DE102012202519A1 (en) | 2012-02-17 | 2013-08-22 | Carl Zeiss Microscopy Gmbh | Methods and apparatus for preparing microscopic samples using pulsed light |
| CN106354096B (en) * | 2016-12-02 | 2019-06-07 | 上海维宏电子科技股份有限公司 | The method of the guide line automatic identification of DXF figure based on digital-control processing system |
| CN107066280B (en) * | 2017-05-08 | 2020-10-09 | 华南农业大学 | Intelligent potato cutting machine control system and method based on machine vision |
| CN107168246A (en) * | 2017-05-31 | 2017-09-15 | 铜仁市万山区丹凤朱砂工艺品研发检测鉴定中心有限公司 | A kind of system that machining code is generated according to photo |
| CN109062223A (en) * | 2018-09-06 | 2018-12-21 | 智久(厦门)机器人科技有限公司上海分公司 | Method, apparatus, equipment and the storage medium in auto-control equipment moving path |
| CN111299815B (en) * | 2020-02-13 | 2021-02-09 | 西安交通大学 | Visual detection and laser cutting trajectory planning method for low-gray rubber pad |
| CN111283478B (en) * | 2020-05-13 | 2020-10-27 | 西安中科微精光子制造科技有限公司 | Self-adaptive positioning method for machining of similar rotary parts |
| CN113751890B (en) * | 2020-06-03 | 2024-01-23 | 上海发那科机器人有限公司 | Robot curved surface track cutting method and cutting system based on laser displacement sensor |
| CN116068964B (en) * | 2023-03-28 | 2023-06-06 | 中科航迈数控软件(深圳)有限公司 | Automatic generation method of control instruction of numerical control machine tool and related equipment |
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| WO2001050404A1 (en) * | 1999-12-30 | 2001-07-12 | Abb Power T & D Company Inc. | Parametric programming of laser cutting system |
| JP3372855B2 (en) * | 1998-02-17 | 2003-02-04 | 住友重機械工業株式会社 | Computer-readable medium storing component placement device, component placement method, and component placement program |
| CN1740932A (en) * | 2005-09-14 | 2006-03-01 | 山东大学 | Intelligent control system for digital control machine tool and control method thereof |
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Patent Citations (4)
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| US4802083A (en) * | 1986-02-17 | 1989-01-31 | Fanuc Ltd | Image reader graphic input method |
| JP3372855B2 (en) * | 1998-02-17 | 2003-02-04 | 住友重機械工業株式会社 | Computer-readable medium storing component placement device, component placement method, and component placement program |
| WO2001050404A1 (en) * | 1999-12-30 | 2001-07-12 | Abb Power T & D Company Inc. | Parametric programming of laser cutting system |
| CN1740932A (en) * | 2005-09-14 | 2006-03-01 | 山东大学 | Intelligent control system for digital control machine tool and control method thereof |
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| CN101776882A (en) | 2010-07-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: GD HAN S YUEMING LASER TECH CO., LTD. Free format text: FORMER OWNER: DONGGUAN YUEMING LASER TECHNOLOGY CO., LTD. Effective date: 20100813 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20100813 Address after: 523000 Guangdong province Dongguan City Wanjiang Yan Wu Community Industrial Zone Applicant after: Guangdong Han's Yueming Laser Technology Co., Ltd. Co-applicant after: Jinan University Address before: 523000 Guangdong province Dongguan City Wanjiang Yan Wu Community Industrial Zone Applicant before: Dongguan Yueming Laser Technology Co., Ltd. Co-applicant before: Jinan University |
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Address after: 523808 Guangdong, Dongguan Songshan Lake high tech Industrial Development Zone Industrial Road, No. 28 Patentee after: GD HAN'S YUEMING LASER GROUP CO., LTD. Patentee after: Jinan University Address before: 523000 Guangdong province Dongguan City Wanjiang Yan Wu Community Industrial Zone Patentee before: Guangdong Han's Yueming Laser Technology Co., Ltd. Patentee before: Jinan University |