CN109767486B - Special-shaped workpiece cutting modeling method, electronic equipment, storage medium and system - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000003860 storage Methods 0.000 title claims description 7
- 238000012545 processing Methods 0.000 claims abstract description 95
- 238000012216 screening Methods 0.000 claims abstract description 28
- 238000010408 sweeping Methods 0.000 claims abstract description 13
- 238000003754 machining Methods 0.000 claims description 19
- 238000004590 computer program Methods 0.000 claims description 5
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- 238000013461 design Methods 0.000 description 5
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Abstract
The invention discloses a modeling method for cutting a special-shaped workpiece, which comprises the steps of obtaining size information and processing information of the special-shaped workpiece, wherein the processing information comprises a preset cutter section, processing path information, processing depth and a cutter offset type; constructing a three-dimensional model corresponding to the special-shaped workpiece according to the size information of the special-shaped workpiece; sweeping the preset cutter section along the processing path information and the path of the processing depth structure to obtain a cutter model; performing Boolean reduction processing on the tool model by using the three-dimensional model to obtain a sub-workpiece model; and screening effective sub-workpiece models from all the sub-workpiece models according to the tool offset type to serve as special-shaped workpiece models, and outputting the special-shaped workpiece models. The modeling method for cutting the special-shaped workpiece can meet the requirements of modeling workpieces with different special shapes, and is wide in application range and accurate in result.
Description
Technical Field
The invention relates to the field of workpiece cutting, in particular to a special-shaped workpiece cutting modeling method, electronic equipment, a storage medium and a system.
Background
The process of making the workpiece is not independent of the design of the workpiece model. Especially in the furniture design industry, the cutting of workpieces and the design of production modeling also become of great importance.
The design of special-shaped workpieces in furniture is increasingly the direction pursued by all parties. Therefore, the modeling of the special-shaped workpiece is accurately and efficiently carried out, and the effect of furniture design is directly influenced.
Most of traditional modeling of the special-shaped workpiece is to obtain a three-dimensional special-shaped workpiece graph by drawing a two-dimensional outline graph and stretching the two-dimensional outline graph. At present, workpiece modeling is carried out in a stretching mode, a part of workpiece three-dimensional graphs meeting requirements can be built, but for workpieces with special shapes, such as special shapes with shaped cutting boundaries, cannot be built.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the objectives of the present invention is to provide a modeling method for cutting a special-shaped workpiece, which can solve the problems that the workpiece modeling is performed in a stretching manner at present, a part of three-dimensional figures of the workpiece meeting the requirements can be constructed, but for the workpiece with a special shape, for example, the special shape with a shape at the cutting boundary can not be constructed.
The second purpose of the present invention is to provide an electronic device, which can solve the problem that the existing three-dimensional graph of the workpiece can be constructed by performing the workpiece modeling in a stretching manner, but the special-shaped workpiece with a special shape, such as a cutting boundary, can not be constructed.
The invention also aims to provide a storage medium, which can solve the problem that the existing workpiece modeling in a stretching mode can build a part of required three-dimensional graphs of workpieces, but the special shapes of workpieces with special shapes, such as cutting boundaries, can not be built.
The fourth purpose of the present invention is to provide a special-shaped workpiece cutting modeling system, which can solve the problem that the existing workpiece modeling in a stretching manner can construct a part of required three-dimensional figures of the workpiece, but for the workpiece with a special shape, such as a special shape with a shaped cutting boundary, the special shape cannot be constructed
One of the purposes provided by the invention is realized by adopting the following technical scheme:
a modeling method for cutting of a special-shaped workpiece comprises the following steps:
step S1, obtaining size information and processing information of the special-shaped workpiece, wherein the processing information comprises a preset cutter section, processing path information, processing depth and a cutter offset type;
s2, constructing a three-dimensional model corresponding to the special-shaped workpiece according to the size information of the special-shaped workpiece;
step S3, sweeping the preset cutter section along the processing path information and the path of the processing depth structure to obtain a cutter model;
s4, performing Boolean reduction processing on the cutter model by using the three-dimensional model to obtain a sub-workpiece model;
step S5, judging whether the tool offset type is middle or whether the machining depth is smaller than the height of the three-dimensional model, if so, outputting the sub-workpiece models as special-shaped workpiece models, and if not, executing step S6, wherein the number of the sub-workpiece models is at least two;
and S6, screening effective sub-workpiece models from all the sub-workpiece models according to the tool offset type to serve as special-shaped workpiece models, and outputting the special-shaped workpiece models.
Further, the size information of the special-shaped workpiece includes height information of the workpiece, length information of the workpiece, and width information of the workpiece, and the step S2 specifically includes: and constructing a three-dimensional model corresponding to the special-shaped workpiece according to the length of the workpiece, the width of the workpiece and the height of the workpiece.
Further, the step S6 is specifically: selecting a plurality of screening points on the edge of one side of the processing path information and the processing depth structure according to the tool offset type, leading out line segments with preset lengths from the screening points, abandoning the sub-workpiece models intersected with the line segments, and taking the rest sub-workpiece models as special-shaped workpiece models.
Further, when the tool offset type is medium, the number of the sub-workpiece models is at least one, and when the machining depth is smaller than the height of the three-dimensional model, the number of the sub-workpiece models is one.
The second purpose of the invention is realized by adopting the following technical scheme:
an electronic device, characterized by comprising: a processor;
a memory; and a program, wherein the program is stored in the memory and configured to be executed by the processor, the program comprising a profiled workpiece cutting modeling method for the present application.
The third purpose of the invention is realized by adopting the following technical scheme:
a computer-readable storage medium having stored thereon a computer program for execution by a processor of a method of modeling a shaped workpiece cut of the present application.
The fourth purpose of the invention is realized by adopting the following technical scheme:
a modeling system for cutting a shaped workpiece includes:
the processing device comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring size information and processing information of the special-shaped workpiece, and the processing information comprises a preset cutter section, processing path information, processing depth and a cutter offset type;
the construction module is used for constructing a three-dimensional model corresponding to the special-shaped workpiece according to the size information of the special-shaped workpiece;
the sweeping module is used for sweeping the preset cutter section along the machining path information and the path of the machining depth structure to obtain a cutter model;
the processing module is used for carrying out Boolean reduction processing on the cutter model by using the three-dimensional model to obtain a sub-workpiece model;
the judging module is used for judging whether the tool offset type is middle or whether the machining depth is smaller than the workpiece height;
and the screening module is used for screening the effective sub-workpiece models from all the sub-workpiece models according to the tool offset type and the tool model to serve as special-shaped workpiece models and outputting the special-shaped workpiece models.
Compared with the prior art, the invention has the beneficial effects that: the invention discloses a modeling method for cutting a special-shaped workpiece, which comprises the steps of obtaining size information and processing information of the special-shaped workpiece, wherein the processing information comprises a preset cutter section, processing path information, processing depth and a cutter offset type; constructing a three-dimensional model corresponding to the special-shaped workpiece according to the size information of the special-shaped workpiece; sweeping the preset cutter section along the processing path information and the path of the processing depth structure to obtain a cutter model; performing Boolean reduction processing on the cutter model by using the three-dimensional model to obtain a sub-workpiece model; and screening effective sub-workpiece models from all the sub-workpiece models according to the tool offset type and the tool model to serve as special-shaped workpiece models, and outputting the special-shaped workpiece models. The special-shaped workpiece model meeting the requirements is obtained by cutting the three-dimensional model through the cutter model, the modeling of workpieces in different special shapes can be met, the application range is wide, and the result is accurate.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic flow chart of a modeling method for cutting a special-shaped workpiece according to the present invention;
fig. 2 is a schematic structural diagram of a three-dimensional model, a tool model and a sub-workpiece model when the three-dimensional model is swept and swept according to the modeling method for cutting a special-shaped workpiece of the present invention;
fig. 3 is a schematic structural diagram of a three-dimensional model, a tool model and a sub-workpiece when an effective sub-workpiece model is screened out in the special-shaped workpiece cutting modeling method of the invention.
In the figure: 1. a tool model; 2. a three-dimensional model; 3. a first sub-workpiece model; 4. a second sub-workpiece model; 5. a first line segment; 6. a second line segment; 7. third line segment 8, path start position.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
The method for modeling the cutting of the special-shaped workpiece shown in fig. 1 specifically includes the following steps with reference to the schematic structural diagrams of the three-dimensional model, the tool model and the sub-workpiece model shown in fig. 2 and 3 for self-inspection:
step S1, obtaining size information and processing information of the special-shaped workpiece, wherein the processing information comprises processing depth and cutter offset type; in this embodiment, the size information of the special-shaped workpiece further includes length information of the workpiece, width information of the workpiece, and height information of the workpiece; the processing information includes preset tool cross section, processing path information, processing depth and tool offset type, in this embodiment, the preset tool cross section and the processing path information are all confirmed by the user according to the type of the special-shaped workpiece to be processed, the shape of the tool cross section can be various, the user can set the shape specifically, the processing path information is the cutting path information, and the cutting path can be determined through the information, specifically, the length and the radian of the cutting path can be included.
S2, constructing a three-dimensional model 2 corresponding to the special-shaped workpiece according to the size information of the special-shaped workpiece; and constructing a three-dimensional model 2 corresponding to the special-shaped workpiece according to the workpiece length information, the workpiece width information and the workpiece height information. Specifically, the dimension information of the special-shaped workpiece is used as the comparison information, so that the three-dimensional model 2 shown in fig. 2 is obtained by using the dimension information of the constructed three-dimensional model 2 with the height not less than the height of the workpiece, the width greater than the width of the workpiece and the length greater than the length of the workpiece, wherein the three-dimensional model 2 is a quadrilateral body, the height of the three-dimensional model 2 is not less than the height of the workpiece, the width of the three-dimensional model 2 is greater than the width of the workpiece, and the length of the three-dimensional model 2 is greater than the length of the workpiece; in the embodiment, the shape of the three-dimensional model 2 is selected as a regular tetrahedral plate, and the specific shape of the three-dimensional model 2 can be constructed according to actual needs.
Step S3, sweeping the preset cutter section along the processing path information and the path of the processing depth structure to obtain a cutter model 1; the method specifically comprises the following steps: sweeping the three-dimensional model 2 according to the preset cutter section, the machining path information and the machining depth to obtain a three-dimensional shape corresponding to a path formed by the machining path information and the machining depth, and taking the three-dimensional shape as a cutter model 1, wherein the cutter model 1 is the three-dimensional shape in fig. 2.
And step S4, performing Boolean reduction processing on the cutter model by using the three-dimensional model to obtain a sub-workpiece model, wherein the Boolean reduction processing is to perform cutting processing on the three-dimensional model.
The steps S5, S5 may include steps S51 and S52, step S51: judging whether the tool offset type is middle or whether the machining depth is smaller than the height of the three-dimensional model 2, if so, executing step S52, and step S52: outputting the sub-workpiece models as the special-shaped workpiece models, and if not, executing the step S6 if the number of the sub-workpiece models is at least two. In this embodiment, the tool offset type may be middle, left, or right, the specific determination criterion is that the starting position of the machining path is used as the reference direction, the starting point of the machining path is used as the reference point, and when the remaining paths are on the same straight line relative to the starting path, the tool offset type is middle, that is, no offset; the tool offset type in fig. 3 is left, the starting path position 8 in fig. 3, if the remaining path is to the left of the starting path position 8, the tool offset type is left, i.e., it is offset to the left, as shown in fig. 2-3; if the remaining path is right of the starting path position 8, the tool offset type is right, i.e. right offset. And when the tool offset type is medium, namely the tool model 1 cuts the three-dimensional model 2 without offset cutting, obtaining two sub-workpiece models, and outputting the two sub-workpiece models as the special-shaped workpiece model. When the machining depth is smaller than the height of the three-dimensional model 2, namely the three-dimensional model 2 is not cut completely by the tool model 1, a plurality of sub-workpieces cannot be obtained when the three-dimensional model 2 is not cut completely, and only one sub-workpiece is obtained, namely the three-dimensional model 2.
And S6, screening effective sub-workpiece models from all the sub-workpiece models according to the tool offset type to serve as special-shaped workpiece models, and outputting the special-shaped workpiece models. Selecting a plurality of screening points at the edge of one side of the processing path information and the processing depth structure path according to the tool offset type, leading out a line segment with the length being a preset length from the screening points, abandoning sub-workpiece models intersected with the line segment, and taking the rest sub-workpiece models as special-shaped workpiece models. As shown in fig. 3, the tool model 1 cuts the three-dimensional model 2 into a first sub-workpiece model 3 and a second sub-workpiece model 4, and the tool cross section in this embodiment is a two-dimensional planar figure which is drawn and determined in advance by AutoCAD and is symmetrical with the Y axis of the AutoCAD two-dimensional coordinate system; selecting a plurality of screening points from the edge of one side of the path formed by the processing path information and the processing depth in this embodiment, and extracting line segments from the screening points, namely a first line segment 5, a second line segment 6 and a third line segment 7 in fig. 3, wherein three line segments are illustrated in fig. 3, which are substantially a plurality of line segments, and the first line segment 5, the second line segment 6 and the third line segment 7 are all line segments which are made in the normal direction of the corresponding screening points corresponding to the processing path information and the one side edge of the path constructed by the processing depth, in this embodiment, for better understanding, all the line segments to be extracted are not marked in fig. 3, in the actual operation process, the line segments extracted at equal intervals from the edge of one side of the tool model 1 which is the same as the tool offset type are used, as long as the second sub-workpiece model 4 is found to intersect with any one of the line segments extracted, the second sub-workpiece model 4 will be discarded at this time and the first sub-workpiece model 3 will be output as the special-shaped workpiece model. In the embodiment, the preset length is the sum of 1 and half of the width of the cutter model 1, and the data can be obtained through experimental verification; in fig. 3, the second sub-workpiece model 4 intersects with the first line segment 5, the second line segment 6 and the third line, the second sub-workpiece model 4 is discarded, the first sub-workpiece model 3 is retained, and the first sub-workpiece model 3 is output as the special-shaped workpiece model.
The application provides an electronic device, including: a processor;
a memory; and a program, wherein the program is stored in the memory and configured to be executed by the processor, the program comprising instructions for performing a profiled workpiece cutting modeling method of the present application.
The present application provides a computer-readable storage medium having stored thereon a computer program characterized by: the computer program is used for executing the special-shaped workpiece cutting modeling method.
The application also provides a dysmorphism work piece cutting modeling system, includes: the acquisition module is used for acquiring the dimension information of the special-shaped workpiece and the processing information, wherein the processing information comprises the processing depth and the type of the tool offset, and in the embodiment, the dimension information of the special-shaped workpiece also comprises the length information of the workpiece, the width information of the workpiece and the height information of the workpiece; the processing information includes preset tool cross section, processing path information, processing depth and tool offset type, in this embodiment, the preset tool cross section and the processing path information are all confirmed by the user according to the type of the special-shaped workpiece to be processed, the shape of the tool cross section can be various, the user can set the shape specifically, the processing path information is the cutting path information, and the cutting path can be determined through the information, specifically, the length and the radian of the cutting path can be included.
The construction module is used for constructing a three-dimensional model corresponding to the special-shaped workpiece according to the size information of the special-shaped workpiece; the sweeping module is used for sweeping the preset cutter section along the processing path information and the path of the processing depth structure to obtain a cutter model; the processing module is used for carrying out Boolean reduction processing on the cutter model by using the three-dimensional model to obtain a sub-workpiece model, and the judging module is used for judging whether the offset type of the cutter is middle or whether the machining depth is smaller than the height of the workpiece. And the screening module is used for screening the effective sub-workpiece models from all the sub-workpiece models as special-shaped workpiece models according to the tool offset type and outputting the special-shaped workpiece models. The method specifically comprises the following steps: the section of the cutter in the embodiment is a two-dimensional plane graph which is drawn and determined by using AutoCAD in advance and is symmetrical by using the Y axis of an AutoCAD two-dimensional coordinate system; selecting a plurality of screening points from the edge of one side of the path formed by the processing path information and the processing depth in the embodiment, leading out a line segment with the length being a preset length from the screening points according to the type of the tool offset, discarding the sub-workpiece model intersected with the line segment, and taking the remaining sub-workpiece model as a special-shaped workpiece model, wherein the line segment is partially overlapped with the normal line of the screening point on the edge of one side of the path formed by the processing path information and the processing depth.
The invention discloses a special-shaped workpiece cutting modeling method which comprises the steps of obtaining size information and processing information of a special-shaped workpiece, wherein the processing information comprises a preset cutter section, processing path information, processing depth and a cutter offset type; constructing a three-dimensional model 2 corresponding to the special-shaped workpiece according to the size information of the special-shaped workpiece; sweeping the preset cutter section along the processing path information and the path of the processing depth structure to obtain a cutter model 1; performing Boolean reduction processing on the tool model 1 by using the three-dimensional model 2 to obtain a sub-workpiece model; and screening effective sub-workpiece models from all the sub-workpiece models according to the tool offset type and the tool model 1 to serve as special-shaped workpiece models, and outputting the special-shaped workpiece models. The special-shaped workpiece model meeting the requirements is obtained by cutting the three-dimensional model 2 by using the cutter model 1, the modeling of workpieces with different special shapes can be met, the application range is wide, and the result is accurate; and according to the set processing path information, the user can independently select the tool offset type, so that effective plate graphs are screened out, and manual judgment and screening are not needed.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; those skilled in the art can readily practice the invention as shown and described in the drawings and detailed description herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (6)
1. A modeling method for cutting of a special-shaped workpiece is characterized by comprising the following steps: the method comprises the following steps:
step S1, obtaining size information and processing information of the special-shaped workpiece, wherein the processing information comprises a preset cutter section, processing path information, processing depth and a cutter offset type;
s2, constructing a three-dimensional model corresponding to the special-shaped workpiece according to the size information of the special-shaped workpiece;
step S3, sweeping the preset cutter section along the processing path information and the path of the processing depth structure to obtain a cutter model;
s4, performing Boolean reduction processing on the cutter model by using the three-dimensional model to obtain a sub-workpiece model;
step S5, judging whether the tool offset type is middle or whether the machining depth is smaller than the height of the three-dimensional model, if so, outputting the sub-workpiece models as special-shaped workpiece models, and if not, executing step S6, wherein the number of the sub-workpiece models is at least two;
s6, screening effective sub-workpiece models from all the sub-workpiece models according to the tool offset type to serve as special-shaped workpiece models, and outputting the special-shaped workpiece models;
the step S6 specifically includes: selecting a screening point at the edge of one side of the processing path information and the processing depth structured path according to the cutter offset type, leading out a line segment with the length being a preset length from the normal direction of the screening point, discarding the sub-workpiece model intersected with the line segment, and taking the rest sub-workpiece model as a special-shaped workpiece model.
2. The method for modeling the cutting of the special-shaped workpiece according to claim 1, wherein: the size information of the special-shaped workpiece comprises workpiece height information, workpiece length information and workpiece width information, and the step S2 specifically comprises the following steps: and constructing a three-dimensional model corresponding to the special-shaped workpiece according to the length of the workpiece, the width of the workpiece and the height of the workpiece.
3. The method for modeling the cutting of the special-shaped workpiece according to claim 1, wherein: when the tool offset type is medium, the number of the sub-workpiece models is two, and when the machining depth is smaller than the height of the three-dimensional model, the number of the sub-workpiece models is one.
4. An electronic device, characterized by comprising: a processor;
a memory; and a program, wherein the program is stored in the memory and configured to be executed by the processor, the program comprising instructions for carrying out the method of any one of claims 1-3.
5. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program is executed by a processor for performing the method according to any of claims 1-3.
6. A modeling system for cutting a special-shaped workpiece is characterized by comprising:
the processing device comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring size information and processing information of the special-shaped workpiece, and the processing information comprises a preset cutter section, processing path information, processing depth and a cutter offset type;
the construction module is used for constructing a three-dimensional model corresponding to the special-shaped workpiece according to the size information of the special-shaped workpiece;
the sweeping module is used for sweeping the preset cutter section along the machining path information and the path of the machining depth structure to obtain a cutter model;
the processing module is used for carrying out Boolean reduction processing on the cutter model by using the three-dimensional model to obtain a sub-workpiece model;
the judging module is used for judging whether the tool offset type is middle or whether the machining depth is smaller than the workpiece height;
the screening module is used for screening effective sub-workpiece models from all the sub-workpiece models according to the tool offset type to serve as special-shaped workpiece models and outputting the special-shaped workpiece models; the step of screening out the effective sub-workpiece models from all the sub-workpiece models according to the tool offset type as the special-shaped workpiece models specifically comprises the following steps: selecting a screening point at the edge of one side of the processing path information and the processing depth structured path according to the cutter offset type, leading out a line segment with the length being a preset length from the normal direction of the screening point, discarding the sub-workpiece model intersected with the line segment, and taking the rest sub-workpiece model as a special-shaped workpiece model.
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| CN111889900A (en) * | 2020-08-04 | 2020-11-06 | 上海柏楚电子科技股份有限公司 | Data processing method and device for cutting special-shaped pipe, electronic equipment and medium |
| CN112464353A (en) * | 2020-12-18 | 2021-03-09 | 中国二十冶集团有限公司 | BIM-based modeling method and system for special-shaped wall |
| CN114905165A (en) * | 2022-06-15 | 2022-08-16 | 滁州合一智控有限公司 | A special-shaped hardware cutting device, method and system |
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