CN102645909A - Method for acquiring laser beam three-dimensional motion track control data - Google Patents
Method for acquiring laser beam three-dimensional motion track control data Download PDFInfo
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- CN102645909A CN102645909A CN2011100393810A CN201110039381A CN102645909A CN 102645909 A CN102645909 A CN 102645909A CN 2011100393810 A CN2011100393810 A CN 2011100393810A CN 201110039381 A CN201110039381 A CN 201110039381A CN 102645909 A CN102645909 A CN 102645909A
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Abstract
The invention relates to a method for acquiring laser beam three-dimensional motion track control data. The method comprises the following steps of: loading a three-dimensional graphic data file which controls milling cutter cutting feed in a numerical control machining to a laser machining control system; processing the three-dimensional graphic file which controls the milling cutter cutting feed to acquire a control data which controls the milling cutter cutting feed; and regarding the control data which controls the milling cutter cutting feed as the laser beam three-dimensional motion track control data. According to the method in the invention, the laser beam three-dimensional motion track control data is acquired through processing the three-dimensional graphic data file which controls milling cutter cutting feed to control laser beams; three-dimensional space scanning and machining of laser beams are realized; and market requirements are met. Three-dimensional graphic data file instructions for controlling the milling cutter cutting feed are simple and easy to be understood, and the work for processing and developing the three-dimensional graphic data file instructions is small in amount and low in difficulty, so that development costs and periods are greatly reduced; time is saved, and efficiency is improved.
Description
[technical field]
The present invention relates to a kind of trajectory of the laser beam control data acquisition methods, relate in particular to a kind of laser beam 3 D motion trace control data acquisition methods.
[background technology]
At present, extensive Laser Processing is used widely.
But; Laser beam movement locus control data all is a two dimension in the extensive Laser Processing both at home and abroad; Laser Processing can only be carried out in two dimensional surface; Can not process at the 3 D stereo curved surface, can't satisfy the current any market demand of huge " the three-dimensional laser processing " of the laser beam 3 D motion trace control on the 3 D stereo curved surface fast.
[summary of the invention]
In view of this, be necessary to provide a kind of laser beam 3 D motion trace control data acquisition methods that laser beam 3 D motion trace control data can be provided.
A kind of laser beam 3 D motion trace control data acquisition methods comprises the steps:
The 3 D graphic data file of control milling cutter feed in the digital control processing is written into the Laser Processing control system;
3 D graphic data file to the feed of control milling cutter is handled, and obtains the control data of control milling cutter feed;
With the control data of control milling cutter feed as laser beam 3 D motion trace control data.
Preferably; The step that said 3 D graphic data file with control milling cutter feed in the digital control processing is written into the Laser Processing control system is: the 3 D graphic data file of the said control milling cutter of output feed from three-dimensional software, the import feature through the Laser Processing control system imports said 3 D graphic data file.
Preferably, said laser beam 3 D motion trace control data reaches the track line segment aggregate that is made up of said node data according to this by the nodal point number on the laser beam 3 D motion trace and forms.
Preferably, have the control data of control milling cutter feed three-dimensional path in the 3 D graphic data file of said control milling cutter feed, said control data reaches the track line segment aggregate that is made up of the node data according to this by nodal point number and forms.
Preferably, said 3 D graphic data file to the feed of control milling cutter is handled, and the step of obtaining the control data of control milling cutter feed is specially:
3 D graphic data file to the feed of control milling cutter reads line by line, and resolves;
Obtain the node data in every row line by line and deposit in the buffer memory;
Obtain the key word of the new track line segment of expression establishment in every row line by line, create the track line segment;
Obtain in every row the key word that expression finishes to have created the track line segment line by line, finish the track line segment, the node data in the buffer memory are deposited in the track line segment and with the track line segment deposit in the track line segment aggregate, obtain the track line segment aggregate.
Preferably, said method also comprises the key word that obtains expression conversion in every row line by line, the step of carrying out the conversion of circular arc broken line.
Preferably, said 3 D graphic data file to the feed of control milling cutter is handled, and the step of obtaining the control data of control milling cutter feed is specially:
S201: the 3 D graphic data file to the feed of control milling cutter reads line by line, resolves;
S202: judge whether to read ending, if execution in step S203 then, execution in step S204 then if not;
S203: judge whether to create the track line segment, if execution in step S205 then, otherwise finish;
S204: read next line, judge whether have the node data in this row, if execution in step S206 then then returns step S201 if not;
S205: add the node data in the buffer memory in the track line segment to and empty node data in the buffer memory, finish then;
S206: judge whether have the key word that expression finishes to have created the track line segment in this row, if execution in step S207 then, execution in step S208 then if not;
S207: judge whether to create the track line segment, if execution in step S209, execution in step S210 then if not;
S208: judge whether have the key word that new track line segment is created in expression in this row,, then return step S201 if not if then execution in step S211 is arranged;
S209: add the node data in the buffer memory to and create in the track line segment and empty node data in the buffer memory, execution in step S212 then;
S210: in buffer memory, add the node data, return step S201 then;
S211: judge whether to create the track line segment, if execution in step S213, execution in step S214 then if not;
S212: the track line segment is added in the track line segment aggregate;
S213: judge whether have the key word that expression is changed in this row,, then return step S210 if not if then carry out step S215;
S214: create new track line segment;
S215: carry out the conversion of circular arc broken line, return step S210 then.
Above-mentioned laser beam 3 D motion trace control data acquisition methods; The 3 D graphic data file of control milling cutter feed is written into the Laser Processing control system; Obtain the control data of control milling cutter feed three-dimensional path and as laser beam 3 D motion trace control data; Thereby obtain laser beam 3 D motion trace control data laser beam is controlled, realized the three dimensions scanning and the processing of laser beam, meet the need of market.The 3 D graphic data file instruction of control milling cutter feed is succinct, understands easily, and it is little that it is handled the development amount, and difficulty is low, thereby greatly reduces cost of development and cycle, has practiced thrift the time, has improved efficient.
[description of drawings]
Fig. 1 is the process flow diagram of laser beam 3 D motion trace control data acquisition methods among the embodiment;
Fig. 2 is the particular flow sheet of among the embodiment 3 D graphic data file of control milling cutter feed being handled.
[embodiment]
Below in conjunction with accompanying drawing, specific embodiments of the invention is described in detail.
Fig. 1 is the process flow diagram of laser beam 3 D motion trace control data acquisition methods among the embodiment, and this method comprises:
S100: the 3 D graphic data file (three-dimensional NC GDF) of control milling cutter feed in the digital control processing is written into the Laser Processing control system.
Among this embodiment; Through contrast to digital control processing and Laser Processing; Learn that the 3 D graphic data file that adopts control milling cutter feed in the digital control processing equally can controlled laser beam 3 D motion trace control data, be written into the Laser Processing control system 3 D motion trace of laser beam is controlled so will control the 3 D graphic data file of milling cutter feed.The 3 D graphic data file of milling cutter feed is controlled in output from three-dimensional software (like UG, Pro/E, SolidWorks etc.), and imports said 3 D graphic data file through the import feature of Laser Processing control system.
S200: the 3 D graphic data file to the feed of control milling cutter is handled, and obtains the control data of control milling cutter feed.
Among this embodiment, laser beam 3 D motion trace curve approximation is become the broken line of being made up of the interconnected track line segment of multistage, control the three-dimensional motion of laser beam with the broken line approximating curve.Control data reaches the track line segment aggregate that is made up of the node data according to this by the nodal point number on the 3 D motion trace and forms; Laser beam is carried out 3-D scanning according to the track line segment; Accomplish whole 3 D motion trace; So the control laser beam is carried out three dimensions scanning, must obtain the track line segment aggregate of laser beam 3 D motion trace.
In the 3 D graphic data file of control milling cutter feed, include the control data of control milling cutter feed three-dimensional path.This control data also can reach the track line segment aggregate that is made up of the node data according to this by nodal point number and constitute.During the milling cutter feed, begun by starting point in the node data, then to second point, the ending point that continues in the node data finishes, and pass by each node and track line segment are accomplished whole three-dimensional path.
Through to the control data of control milling cutter feed three-dimensional path and the contrast of laser three-D movement locus control data; Drawing the Laser Processing control system handles the 3 D graphic data file; Obtain the control data of control milling cutter feed three-dimensional path and, can control laser beam equally and carry out three dimensions scanning as the control data of laser three-D movement locus control data.
Among this embodiment, the 3 D graphic data file of control milling cutter feed is handled, obtain the feed of control milling cutter control data step substantially as follows: the 3 D graphic data file to controlling the milling cutter feed reads line by line, and resolves; Obtain the node data in every row line by line and deposit in the buffer memory; Obtain the key word of the new track line segment of expression establishment in every row line by line, create the track line segment; Obtain in every row the key word that expression finishes to have created the track line segment line by line, finish the track line segment, the node data in the buffer memory are deposited in the track line segment and with the track line segment deposit in the track line segment aggregate, obtain the track line segment aggregate.
In addition; When being circular arc, provide the last point coordinate and the central coordinate of circle (or radius) of this circular arc in the 3 D graphic data file, carry out the conversion of circular arc broken lineization for curve; Promptly adopt key word to represent this circular curve, approach required node data of obtaining of this curve and track line segment thereby reduce.So this method further comprises: obtain the key word of expression conversion in every row line by line, the step of carrying out the conversion of circular arc broken lineization.
Fig. 2 is the particular flow sheet of among the embodiment 3 D graphic data file of control milling cutter feed being handled, and comprises the steps:
S201: the 3 D graphic data file to the feed of control milling cutter reads line by line, resolves;
S202: judge whether to read ending, if execution in step S203 then, execution in step S204 then if not;
S203: judge whether to create the track line segment, if execution in step S205 then, otherwise finish;
S204: read next line, judge whether have the node data in this row, if execution in step S206 then then returns step S201 if not;
S205: add the node data in the buffer memory in the track line segment to and empty node data in the buffer memory, finish then;
S206: judge whether have the key word that expression finishes to have created the track line segment in this row, if execution in step S207 then, execution in step S208 then if not;
S207: judge whether to create the track line segment, if execution in step S209, execution in step S210 then if not;
S208: judge whether have the key word that new track line segment is created in expression in this row,, then return step S201 if not if then execution in step S211 is arranged;
S209: add the node data in the buffer memory to and create in the track line segment and empty node data in the buffer memory, execution in step S212 then;
S210: in buffer memory, add the node data, return step S201 then;
S211: judge whether to create the track line segment.If execution in step S213, execution in step S214 then if not;
S212: the track line segment is added in the track line segment aggregate;
S213: judge whether have the key word that expression is changed in this row,, then return step S210 if not if then carry out step S215;
S214: create new track line segment, and execution in step S215;
S215: carry out the conversion of circular arc broken line, return step S210 then.
Treatment scheme shown in Figure 2; The Laser Processing control system needs the 3 D graphic data file of control milling cutter feed is read processing such as parsing and conversion after the 3 D graphic data file that will control the milling cutter feed is written into, and obtains the track line segment aggregate of system milling cutter feed.When handling, the 3 D graphic data file of control milling cutter feed is read line by line, and whenever read delegation and then resolve delegation, obtain the node data in each row and deposit in the buffer memory, and then deposit in the corresponding track line segment.Have the key word of a large amount of presentation directiveses in the 3 D graphic data file to the feed of control milling cutter, these key words are used to control milling cutter feed and treatment scheme, also control the node data and how to deposit in the corresponding track line segment.Because the key word of control milling cutter feed is nonessential for the Laser Processing control system a lot; So through combining the characteristics and the practical application of Laser Processing; When handling, only need to select expression to finish to have created track line segment, expression and create new track line segment and expression and carry out three types of key words of circular arc broken line conversion and get final product.
If when having the key word of the new track line segment of expression establishment in certain row, then do not creating under the situation of track line segment, creating new track line segment and be used for follow-up parsing.If when having the key word of expression circular arc broken line conversion in certain row, curve approximation is become broken line.Have when creating the track line segment if having key word and the front that expression finishes to have created the track line segment in this row, the node data in the buffer memory are deposited in create in the track line segment, form this track line segment by the node data; The path of control laser beam; Then the track line segment is deposited in the track line segment aggregate, so obtain the track line segment that all node data are formed, form the track line segment aggregate; Obtain the track line segment aggregate, thereby obtain the control data of control milling cutter feed three-dimensional path.
S300: the control data that will control milling cutter feed three-dimensional path is as laser beam 3 D motion trace control data.
Among this embodiment,, laser beam is controlled, well realized the 3-D scanning of laser beam the control data of the control milling cutter feed three-dimensional path that finally obtains control data as control laser beam 3 D motion trace.
Above-mentioned laser beam 3 D motion trace control data acquisition methods; Through contrast to digital-control processing system and Laser Processing control system; The 3 D graphic data file of control milling cutter feed is written into the Laser Processing control system, obtains the control data of control milling cutter feed three-dimensional path and, laser beam is controlled thereby obtain laser beam 3 D motion trace control data as laser beam 3 D motion trace control data; Realize the three dimensions scanning and the processing of laser beam, meet the need of market.The 3 D graphic data file instruction of control milling cutter feed is succinct, understands easily, and it is little that it is handled the development amount, and difficulty is low, thereby greatly reduces cost of development and cycle, has practiced thrift the time, has improved efficient.
The above embodiment has only expressed several kinds of embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with accompanying claims.
Claims (7)
1. a laser beam 3 D motion trace control data acquisition methods comprises the steps:
The 3 D graphic data file of control milling cutter feed in the digital control processing is written into the Laser Processing control system;
3 D graphic data file to the feed of control milling cutter is handled, and obtains the control data of control milling cutter feed;
With the control data of control milling cutter feed as laser beam 3 D motion trace control data.
2. laser beam 3 D motion trace control data acquisition methods according to claim 1; It is characterized in that; The step that said 3 D graphic data file with control milling cutter feed in the digital control processing is written into the Laser Processing control system is: the 3 D graphic data file of the said control milling cutter of output feed from three-dimensional software, the import feature through the Laser Processing control system imports said 3 D graphic data file.
3. laser beam 3 D motion trace control data acquisition methods according to claim 1; It is characterized in that said laser beam 3 D motion trace control data reaches the track line segment aggregate that is made up of said node data according to this by the nodal point number on the laser beam 3 D motion trace and forms.
4. laser beam 3 D motion trace control data acquisition methods according to claim 3; It is characterized in that; Have the control data of control milling cutter feed three-dimensional path in the 3 D graphic data file of said control milling cutter feed, said control data reaches the track line segment aggregate that is made up of the node data according to this by nodal point number and forms.
5. laser beam 3 D motion trace control data acquisition methods according to claim 4 is characterized in that, said 3 D graphic data file to the feed of control milling cutter is handled, and the step of obtaining the control data of control milling cutter feed is specially:
3 D graphic data file to the feed of control milling cutter reads line by line, and resolves;
Obtain the node data in every row line by line and deposit in the buffer memory;
Obtain the key word of the new track line segment of expression establishment in every row line by line, create the track line segment;
Obtain in every row the key word that expression finishes to have created the track line segment line by line, finish the track line segment, the node data in the buffer memory are deposited in the track line segment and with the track line segment deposit in the track line segment aggregate, obtain the track line segment aggregate.
6. laser beam 3 D motion trace control data acquisition methods according to claim 5 is characterized in that, said method also comprises the key word that obtains expression conversion in every row line by line, the step of carrying out the conversion of circular arc broken line.
7. according to the arbitrary described laser beam 3 D motion trace control data acquisition methods of claim 4 to 6, it is characterized in that said 3 D graphic data file to the feed of control milling cutter is handled, the step of obtaining the control data of control milling cutter feed is specially:
S201: the 3 D graphic data file to the feed of control milling cutter reads line by line, resolves;
S202: judge whether to read ending, if execution in step S203 then, execution in step S204 then if not;
S203: judge whether to create the track line segment, if execution in step S205 then, otherwise finish;
S204: read next line, judge whether have the node data in this row, if execution in step S206 then then returns step S201 if not;
S205: add the node data in the buffer memory in the track line segment to and empty node data in the buffer memory, finish then;
S206: judge whether have the key word that expression finishes to have created the track line segment in this row, if execution in step S207 then, execution in step S208 then if not;
S207: judge whether to create the track line segment, if execution in step S209, execution in step S210 then if not;
S208: judge whether have the key word that new track line segment is created in expression in this row,, then return step S201 if not if then execution in step S211 is arranged;
S209: add the node data in the buffer memory to and create in the track line segment and empty node data in the buffer memory, execution in step S212 then;
S210: in buffer memory, add the node data, return step S201 then;
S211: judge whether to create the track line segment, if execution in step S213, execution in step S214 then if not;
S212: the track line segment is added in the track line segment aggregate;
S213: judge whether have the key word that expression is changed in this row,, then return step S210 if not if then carry out step S215;
S214: create new track line segment;
S215: carry out the conversion of circular arc broken line, return step S210 then.
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| CN201110039381.0A CN102645909B (en) | 2011-02-17 | 2011-02-17 | Method for acquiring laser beam three-dimensional motion track control data |
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| CN201110039381.0A CN102645909B (en) | 2011-02-17 | 2011-02-17 | Method for acquiring laser beam three-dimensional motion track control data |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104759760A (en) * | 2015-03-21 | 2015-07-08 | 温州大学 | Laser processing method of surface array microstructure of point cloud description curve workpiece |
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| CN104759760A (en) * | 2015-03-21 | 2015-07-08 | 温州大学 | Laser processing method of surface array microstructure of point cloud description curve workpiece |
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Address after: 518057 401m-2, bike science and technology building, No. 9, scientific research road, Maling community, Yuehai street, Nanshan District, Shenzhen, Guangdong Province Patentee after: Shenzhen Taide Laser Technology Co.,Ltd. Address before: 518000 floor 1 and 2, building B, Changyuan new material port, Keyuan North Road, Nanshan District, Shenzhen, Guangdong Patentee before: SHENZHEN TETE LASER TECHNOLOGY Co.,Ltd. |
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