CN106933188B - Numerical control punching control method and system - Google Patents
Numerical control punching control method and system Download PDFInfo
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- CN106933188B CN106933188B CN201710161975.6A CN201710161975A CN106933188B CN 106933188 B CN106933188 B CN 106933188B CN 201710161975 A CN201710161975 A CN 201710161975A CN 106933188 B CN106933188 B CN 106933188B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/408—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by data handling or data format, e.g. reading, buffering or conversion of data
- G05B19/4083—Adapting programme, configuration
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/35—Nc in input of data, input till input file format
- G05B2219/35356—Data handling
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Abstract
The present invention relates to a kind of numerical control punching control methods.Control method, comprising: graph data to be processed is converted into the PLT formatted file that perforating press can identify；Parsing is carried out to the PLT formatted file and obtains polar plot, and the polar plot of acquisition is shown；Plan that punching path, the punching path include Z-type, N-type and intelligent path according to the polar plot；Processing is punched out to workpiece to be processed according to the punching path.By above-mentioned control method, the control of the whole process of lathe operation is completed, reduces punching runing time, has saved the time, the operational efficiency of its numerical control punching machine had greatly promoted.
Description
Technical field
The present invention relates to light industry technical fields, more particularly to multifunctional numerical control punching control method and system.
Background technique
The punching speed of the leather punched hole machine generallyd use currently on the market is slow, less meets what client increased increasingly
Demand, and laser opening and carving are used, such equipment often blacks since laser energy is excessively high and generates irritation gas
Body, so that client has to increase subsequent sand washing operation to remove burnt parts.Subsequent sand washing can give client's bring volume
Outer cost of labor and production cost.And when being controlled using traditional control method leather punched hole machine, punching speed is slow,
Low efficiency is not able to satisfy the demand of client.
Summary of the invention
Based on this, it is necessary in view of the above-mentioned problems, providing a kind of numerical control punching control of efficiency for being able to ascend leather punched hole
Method and system processed.
A kind of numerical control punching control method, comprising:
Graph data to be processed is converted into the PLT formatted file that perforating press can identify；
Parsing is carried out to the PLT formatted file and obtains polar plot, and the polar plot of acquisition is shown；
Plan that punching path, the punching path include Z-type, N-type and intelligent path according to the polar plot；
Processing is punched out to workpiece to be processed according to the punching path.
Graph data to be processed is converted to the PLT lattice that machine tool for punching can identify by above-mentioned numerical control punching control method
The file of formula, and the file of PLT format is parsed to obtain corresponding polar plot.Punching is obtained according to the result of polar plot parsing
The distributed data of hole point plans an optimal punching path according to the distributed data of punching point, according to the punching path of acquisition
Processing is punched out to workpiece to be processed, completes the control of the whole process of lathe operation, reduces punching runing time, save
There is an operational efficiency of its numerical control punching machine in time greatly to be promoted.
It is described in one of the embodiments, that parsing acquisition polar plot is carried out to the PLT formatted file, comprising:
The PLT formatted file is split by byte；
Segmented byte information is converted to letter or number according to ASCII character；
According to pre-arranged code catalogue, the character and data of functional descriptions are converted to the letter or number；
It is grouped according to the content of the character and location information, and extracts and be used to form storing in order for image
Angle point information；
The polar plot is calculated according to the angle point information.
In one of the embodiments, further include: using the geometry topological relation of the polar plot to the vector
The rotation angle of figure carries out automatic identification.
In one of the embodiments, further include: the polar plot is edited.
The polar plot of described pair of acquisition is shown in one of the embodiments, comprising: shows the vector of reading
Coordinate and angle information in figure.
It is described in one of the embodiments, that punching path is planned according to the polar plot, comprising:
Obtain the coordinate information of punching point data in polar plot；
The priority of path or angle is selected according to the coordinate information；
Division is grouped to the punching point data according to the priority, obtains block data；
The punching path of the block data is selected, the punching path includes Z-type, N-type and intelligent path.
In one of the embodiments, further include:
If the priority of the angle is higher than the priority in the path, according to the size of angle to the punching point minute
Cloth data are grouped division, obtain block data；
And path planning is carried out according to angle sequence block data described in every group from small to large.
In one of the embodiments, further include:
If the priority in the path is higher than the priority of the angle, judge whether to carry out punching point distributed data
Grouping divides,
It selects to go if being grouped the punching point distributed data division to divide, arrange division or intelligent division；
It is one whole that the punching point distributed data is defined if not being grouped division to the punching point distributed data
Body.
The punching path of the selection block data in one of the embodiments, comprising:
If the punching path selected is intelligent path, shortest path is judged whether there is；
Shortest path if it exists is then punched out the workpiece to be processed by shortest path；
Shortest path if it does not exist then plans the punching according to depth-first or breadth First to the block data
Path.
In addition, also providing a kind of punching control system, comprising:
Conversion module, for graph data to be processed to be converted to the PLT formatted file that perforating press can identify；
Parsing module obtains polar plot for carrying out parsing to the PLT formatted file, and carries out to the polar plot of acquisition
Display；
Path planning module, for planning punching path according to the punching point distributed data, the punching path includes Z
Type, N-type and intelligent path；
Motion-control module, for being punched out processing to workpiece to be processed according to the punching path.
Detailed description of the invention
Fig. 1 is the flow chart of numerical control punching control method in one embodiment；
Fig. 2 is to carry out the flow chart that parsing obtains polar plot to the PLT formatted file in one embodiment；
Fig. 3-6 is the identification schematic diagram of the rotation angle of polar plot in one embodiment；
Fig. 7 is the flow chart for planning punching path in one embodiment according to the polar plot；
Fig. 8 is the schematic diagram in Z-shaped path in one embodiment；
Fig. 9 is the schematic diagram in N shape path in one embodiment；
Figure 10 is the schematic diagram in intelligent path in one embodiment；
Figure 11 is the structural block diagram that punching control system is controlled in one embodiment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 is the flow chart of numerical control punching control method in one embodiment, in one embodiment, numerical control punching control
Method processed, includes the following steps:
Step S110: graph data to be processed is converted into the PLT formatted file that perforating press can identify.
When being punched out to leather, the figure of punching is stored into digital control system numerical control punching machine, is controlled by system
System.The storage format of the figure of punching to be processed has in very much, such as .dwg .plt .dxf .GIF etc..In numerically-controlled machine tool
In, it can only identify the file of PLT format.It needs graph data (storage format of common figure) to be processed being converted to punching
The file for the PLT format that hole machine can identify, the file of PLT format is more succinct, the scale of construction is small, convenient for transmission.The text of PLT format
Part is broadly divided into function and describes character and data, wherein it is capitalization that function, which describes character, and data are number, by different
Function describes the data item such as character representation brush, line style, unit.
Step S120: parsing is carried out to the PLT formatted file and obtains polar plot, and the polar plot of acquisition is shown
Show.
The coding criterion of the file for the PLT format that conversion is obtained according to response, generates vector map data.Then it reads and obtains
The angle-data in smooth point data, detection polar plot in the vector map data taken, and phase is calculated according to smooth point data
Number of edges evidence between adjoint point data.The Context resolution that PLT radical file includes is come out, subsequent diagram editor, path rule are formed
Draw and be punched out etc. the available data of correlation steps.And by polar plot by related software (such as MFC, OpenCV,
Halcon, VB and C# etc.) it is shown in operation interface.
Step S130: according to the punching point distributed data plan punching path, the punching path include Z-type, N-type and
Intelligent path.
The path of punching is advised by two norms, F norm, absolute value and P norm etc. according to punching point distributed data
It draws.Wherein, the punching path of planning includes Z-type, N-type and intelligent path.Z-type punching path is to go on smoothly punching, N-type by row
It is that punching is gone on smoothly by column, intelligent path is punched out according to shortest path in row or column.And it can be according to mechanical straight
Line movement, rotary motion feature provide angle/distance priority option；Row, column/automatic the knowledge in partition programming path can also be grouped
Other ranks.Optimal punching path is planned according to punching point distributed data, it is possible to reduce operating path saves time cost,
Improve punching operational efficiency.
Step S140: processing is punched out to workpiece to be processed according to the punching path.
Processing is punched out to workpiece to be processed according to the punching path of planning.Pass through interpolation, PID control (ratio/micro-
Point/integration control), nonlinear acceleration and deceleration, Multi-thread control, time cooperation, path optimization etc. plan as a whole motion control operation
Between cooperation.Meanwhile the movement of different efficiency is planned as a whole using parallel, time-sharing multiplex thought, complete lathe fortune
The control of capable whole process, the operational efficiency for reducing punching runing time, having saved the time, having made its numerical control punching machine
Have and is greatly promoted.
By above-mentioned numerically-controlled machine tool punching control method, graph data to be processed, which is converted to machine tool for punching, to be identified
PLT format file, and the file of PLT format is parsed to obtain corresponding polar plot.The knot parsed according to polar plot
Fruit obtains the distributed data of punching point, an optimal punching path is planned according to the distributed data of punching point, according to acquisition
Punching path is punched out processing to workpiece to be processed.By interpolation, PID control (ratio/differential/integration control), non-linear
Acceleration and deceleration, Multi-thread control, time cooperation, path optimization etc. plan as a whole the cooperation between motion control operation.Complete lathe
The control of the whole process of operation reduces punching runing time, has saved the time, the operation of its numerical control punching machine is imitated
Rate, which has, greatly to be promoted.
In one embodiment, described that parsing acquisition polar plot is carried out to the PLT formatted file, and form subsequent diagram
Editor, the available data of punching path planning step.The specific steps parsed to the PLT formatted file include:
Step S201: the PLT formatted file is split by byte.
Can by PLT formatted file when be used as binary format file, by the binary file of PLT format by byte (based on
Calculation machine storage mode) it is split.
Step S202: segmented byte information is converted to letter or number according to ASCII character.
The byte information of segmentation is converted to letter or number according to ASCII character (computer general-purpose coding rule).
Step S203: according to pre-arranged code catalogue, the character sum number of functional descriptions is converted to the letter or number
According to.
The letter divided in previous step is explained according to the preset content of PLT coding manual, is construed to not
Same function describes character.Wherein, it is capitalization that function, which describes character, and data are number, describes character by different functions
Indicate the data item such as brush, line style, unit.
Step S204: being grouped according to the content of the character and location information, and extract be used to form image by
The angle point information of sequential storage.
Content and the position of character are described according to function come judge read data content, and to the data content of reading into
Row grouping.After grouping, every group of data content is individually extracted, and figure, the figure of formation are formed according to the data content of extraction
It include the angle point information of sequential storage in shape.
Step S205: the polar plot is calculated according to the angle point information.
Calculate and obtain corresponding polar plot according to the angle point information of sequential storage, and by the angle point in the polar plot of acquisition
Information is stored.Data are provided for subsequent graphics edition and path planning to support.
In one embodiment, the polar plot of described pair of acquisition is shown, comprising: shows the polar plot of reading
Coordinate and angle information.Wherein, the characteristic manner of the coordinate and angle information that show the polar plot of reading can be double,
The data types such as char, string, Cstring.When being shown to polar plot, it is also an option that hidden parts are unwanted
Vector map information, or substituted with other things for including similar information.
It in one embodiment, further include the rotation for utilizing the geometry topological relation of the polar plot to the polar plot
Gyration carries out the step of automatic identification.The control method can be used for controlling the rotation of cutter head in perforating press, that is, can be certainly
The rotation angle of dynamic intelligent recognition polar plot.
With reference to Fig. 3-Fig. 6, using using the positive five edge graphs shape of upper left corner benchmark as standard, rotation angle is the practical rotation of polar plot
Angle, detection angles are to be sent to the angle (cutter head need rotate angle) of cutter head, vertex number be each number of vertex factually
The sequence of border storage.
Wherein, the vertex number in rotating graphs 1 is identical as the vertex number of the positive five edge graphs shape of benchmark, 1 phase of rotating graphs
Five edge graphs shape positive to benchmark rotates clockwise 15 °, that is, detection angles are 15 ° (cutter head needs to rotate 15 °).In rotating graphs 2
Vertex number it is identical as the vertex number of the positive five edge graphs shape of benchmark, the positive five edge graphs shape of relative datum rotates clockwise 87 °,
That is, detection angles are 15 ° (cutter head needs to rotate 15 °).The duplicate angle of centrosymmetric image can be compensated automatically, automatically derived
Minimum value is transmitted to the Tool Control center of machine tool for punching, controls the rotation of cutter head, raising efficiency.It compiles on vertex in rotating graphs 3
It is number not identical as the vertex number of the positive five edge graphs shape of benchmark.The positive five edge graphs shape of relative datum rotates clockwise 15 °, that is, detection
Angle be 15 ° (cutter head needs to rotate 15 °), can automatic identification graphics vertex number order variation, automatically identify detection angle
The minimum angles of degree.
Automatic identification is carried out come the rotation angle to polar plot using the geometry topological relation of polar plot, compare biography
The template matching of system, is greatly reduced that calculation amount, recognition speed are fast, and the identification of the angle of polar plot is identified according to vertex number
Method more intelligence is flexible, and output is smaller to cutter head rotation angle, improves efficiency.
In one embodiment, further include the steps that editing the polar plot.Sometimes client may be because some
Simple minor error or needs functionally, it is desirable that existing graphics is increased and decreased and the operations such as selective punching press, is but had to
Again it goes to write new figure, this often wastes client's a large amount of time.In the embodiment of the present invention, polar plot can be carried out
Editor.The polar plot (graph data) of reading can be intuitively displayed on the screen, can color to polar plot and figure layer carry out
Editor, different cutter heads are marked by different colours figure layer, clear and intuitive, and facilitate applying between different flower pattern.Meanwhile may be used also
To be translated, be scaled to polar plot, be rotated, mirror image, array, duplication, stickup, the common graphics edition operation such as coordinate transform.
The step of being edited by setting to polar plot, can be convenient client and flexibly automatically modifies, saving will design caption
The process of design department's modification is returned to, cost, raising efficiency are saved.
In one embodiment, described to plan that punching path specifically comprises the following steps: according to the polar plot
Step S701: the coordinate information of punching point data in polar plot is obtained.
According to parsing PLT formatted file is passed through in abovementioned steps, the angle point information data in polar plot are obtained, wherein wrapping
Include coordinate information, angle-data and the side length data in the sequence point data of polar plot.
Step S702: the priority of path or angle is selected according to the coordinate information.
The priority of heat source or angle is determined according to the distribution situation of the angle information of polar plot.Generally, polar plot
Angular distribution compare concentration, then define angle priority be higher than path priority.
Step S703: division is grouped to the punching point data according to the priority, obtains block data.
In one embodiment, angle priority is higher than the priority in the path, then according to the size of angle to described
Punching point distributed data is grouped division, obtains block data.And divide described in every group according to angle sequence from small to large
Block number is according to progress path planning.
In one embodiment, the priority in path is higher than the priority of the angle, then judges whether to count to punching
It is divided according to being grouped.It selects to go if being grouped the punching point distributed data division to divide, arrange division or intelligent stroke
Point.It is an entirety that the punching point distributed data is defined if not being grouped division to the punching point distributed data.
Step S704: selecting the punching path of the block data, and the punching path includes Z-type, N-type and intelligent road
Diameter, with reference to Fig. 8-Figure 10.
It selects punching path for Z-type, then needs to fill in the row numerical quantities mutually in requisition for punching, select punching path for N-type,
Then need to fill in the column numerical quantities mutually in requisition for punching.And according to corresponding row numerical quantities, column numerical quantities to punching point data into
Row grouping divides.If punching point data is in array distribution, the spacing vertically and horizontally in the array is judged,
If the spacing on vertical direction is greater than the spacing in horizontal direction, just it is suitable for the punching path of Z-type；If on vertical direction
Spacing is less than the spacing in horizontal direction, is just suitable for the punching path of N-type；If the spacing on vertical direction is equal to level side
Upward spacing is just suitable for the punching path of Z-type or N-type.It selects intelligent path to be punched out, is then obtained by probability distribution
Division is grouped to punching point data again after suitable ranks.If selecting to be intelligent path, but it is unable to get suitably
Ranks numerical value is then divided without grouping.
Obtained each data block is divided to grouping according to the sequence of N-type to handle；Meanwhile being grouped the number for dividing and obtaining
It is planned according to block according to Z-shaped path or N shape path, then as shown below.
If the punching path selected is intelligent path, shortest path is judged whether there is according to largest connected figure first,
If it exists, then shortest path is defined as intelligent path.Shortest path if it does not exist, then according to the suitable of depth-first or breadth First
Sequence plans the punching path first.
In addition, it should be noted that, when being connected between every group/block, most by the upper lower one group/block of one group/block end point search
Close point carries out path planning.
It in one embodiment, further include that punching path to acquisition saves.It is planned according to the polar plot of acquisition
Punching path, and the different types of punching path of acquisition is saved, it, can when encountering the same graphics processing so as to the later period
To call directly the punching path of storage, the time of operation is reduced, the efficiency of punching is improved.
In addition, the embodiment of the present invention also provides a kind of control punching control system, with reference to Figure 11, punching control system is controlled
Including conversion module 1101, parsing module 1102, path planning module 1103 and motion-control module 1104.Wherein,
Conversion module 1101, for graph data to be processed to be converted to the PLT formatted file that perforating press can identify.
Parsing module 1102 obtains polar plot for carrying out parsing to the PLT formatted file, and to the polar plot of acquisition
It is shown.
Path planning module 1103, for planning punching path, the punching path according to the punching point distributed data
Including Z-type, N-type and intelligent path.
Motion-control module 1104, for being punched out processing to workpiece to be processed according to the punching path.At one
In example, motion-control module 1104 includes the motion control card that 6 axis can be supported to link, and may indicate that the servo persistently to run at high speed
The hardware devices such as motor and stepper motor, industrial personal computer, punching tool, formed punch, motion sensor and guide rail.
By above-mentioned numerical control punching control system, graph data to be processed can be converted to machine tool for punching can be identified
PLT format file, and the file of PLT format is parsed to obtain corresponding polar plot.The knot parsed according to polar plot
Fruit obtains the distributed data of punching point, an optimal punching path is planned according to the distributed data of punching point, according to acquisition
Punching path is punched out processing to workpiece to be processed.By interpolation, PID control (ratio/differential/integration control), non-linear
Acceleration and deceleration, Multi-thread control, time cooperation, path optimization etc. plan as a whole the cooperation between motion control operation.Complete lathe
The control of the whole process of operation reduces punching runing time, has saved the time, the operation of its numerical control punching machine is imitated
Rate, which has, greatly to be promoted.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of numerical control punching control method characterized by comprising
Graph data to be processed is converted into the PLT formatted file that perforating press can identify；
Parsing is carried out to the PLT formatted file and obtains polar plot, and obtains the smooth point data in the vector map data, inspection
The angle-data in the polar plot is surveyed, and the number of edges evidence between adjacent point data is calculated according to the smooth point data, and
The polar plot of acquisition is shown；
Plan that punching path, the punching path include Z-type, N-type and intelligent path according to the polar plot；
Processing is punched out to workpiece to be processed according to the punching path.
2. numerical control punching control method according to claim 1, which is characterized in that it is described to the PLT formatted file into
Row parsing obtains polar plot, comprising:
The PLT formatted file is split by byte；
Segmented byte information is converted to letter or number according to ASCII character；
According to pre-arranged code catalogue, the character and data of functional descriptions are converted to the letter or number；
It is grouped according to the content of the character and location information, and extracts the angle point stored in order for being used to form image
Information；
The polar plot is calculated according to the angle point information.
3. numerical control punching control method according to claim 2, which is characterized in that further include: utilize the polar plot
Geometry topological relation carries out automatic identification to the rotation angle of the polar plot.
4. numerical control punching control method according to claim 1, which is characterized in that further include: the polar plot is carried out
Editor.
5. numerical control punching control method according to claim 1, which is characterized in that the polar plot of described pair of acquisition is shown
Show, comprising: show the coordinate and angle information in the polar plot of reading.
6. numerical control punching control method according to claim 1, which is characterized in that described planned according to the polar plot is rushed
Hole path, comprising:
Obtain the coordinate information of punching point distributed data in polar plot；
The priority of path or angle is selected according to the coordinate information；
Division is grouped to the punching point distributed data according to the priority, obtains block data；
The punching path of the block data is selected, the punching path includes Z-type, N-type and intelligent path.
7. numerical control punching control method according to claim 6, which is characterized in that further include:
If the priority of the angle is higher than the priority in the path, according to the size of angle to the punching point distribution number
It is divided according to being grouped, obtains block data；
And path planning is carried out according to angle sequence block data described in every group from small to large.
8. numerical control punching control method according to claim 6, which is characterized in that further include:
If the priority in the path is higher than the priority of the angle, judge whether to be grouped punching point distributed data
It divides,
It selects to go if being grouped the punching point distributed data division to divide, arrange division or intelligent division；
It is an entirety that the punching point distributed data is defined if not being grouped division to the punching point distributed data.
9. numerical control punching control method according to claim 6, which is characterized in that described to select rushing for the block data
Hole path, comprising:
If the punching path selected is intelligent path, shortest path is judged whether there is；
Shortest path if it exists is then punched out the workpiece to be processed by shortest path；
Shortest path if it does not exist then plans the punching road according to depth-first or breadth First to the block data
Diameter.
10. a kind of punching control system characterized by comprising
Conversion module, for graph data to be processed to be converted to the PLT formatted file that perforating press can identify；
Parsing module obtains polar plot for carrying out parsing to the PLT formatted file, and obtains in the vector map data
Angle-data in smooth point data, the detection polar plot, and according to the smooth point data calculate adjacent point data it
Between number of edges evidence, and the polar plot of acquisition is shown；
Path planning module, for planning punching path according to the polar plot, the punching path includes Z-type, N-type and intelligence
Path；
Motion-control module, for being punched out processing to workpiece to be processed according to the punching path.
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| CN107479504B (en) * | 2017-08-21 | 2019-09-20 | 南京中车浦镇城轨车辆有限责任公司 | A kind of method of numerical control processing Automatic feature recognition and path planning |
| US10543598B2 (en) * | 2018-02-26 | 2020-01-28 | The Boeing Company | Machining system with optimal paths |
| CN110968039B (en) * | 2019-12-17 | 2022-11-25 | 上海维宏电子科技股份有限公司 | Graph cutting and sorting processing method applied to laser cutting numerical control machining |
| CN112034785A (en) * | 2020-08-31 | 2020-12-04 | 江西江铃集团新能源汽车有限公司 | Machining path generation method and device, storage medium and equipment |
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