CN106985395A - The increasing material manufacturing method and device of feature based - Google Patents
The increasing material manufacturing method and device of feature based Download PDFInfo
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- CN106985395A CN106985395A CN201710148863.7A CN201710148863A CN106985395A CN 106985395 A CN106985395 A CN 106985395A CN 201710148863 A CN201710148863 A CN 201710148863A CN 106985395 A CN106985395 A CN 106985395A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
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Abstract
The present invention provides a kind of increasing material manufacturing method and device of feature based, belongs to increases material manufacturing technology field.This method includes：Feature decomposition is carried out to part model, the first category feature and the second category feature is obtained, the first kind is characterized as the feature based on plane, and Equations of The Second Kind is characterized as the feature based on curved surface；The corresponding first increasing material manufacturing path of first category feature is obtained according to M axles feature, M is the integer more than 0；The corresponding second increasing material manufacturing path of second category feature is obtained according to N axles feature, N is the integer more than 0, and N is not equal to M；Increasing material manufacturing is carried out to part model according to the first increasing material manufacturing path and the second increasing material manufacturing path.The increasing material manufacturing method and device for the feature based that the present invention is provided, improves the efficiency of printing.
Description
Technical field
The present invention relates to the increasing material manufacturing method and device in increases material manufacturing technology field, more particularly to a kind of feature based.
Background technology
Increasing material manufacturing (Additive Manufacturing, AM), is called 3D printing, is used by CAD design data
The method that material successively adds up manufactures the technology of entity component, is one kind of rapid shaping technique.The increases material manufacturing technology is usual
It is made up of steps such as 3D modeling, hierarchy slicing, path planning, forming parts, because its manufacturing cost is low, the process-cycle is short, from
Phase late 1980s occur since, achieve fast development, jewelry, footwear, industrial design, building, engineering and construction,
The fields such as automobile, Aero-Space, medical industries, education industry are all widely used.
However, existing model slice layered approach is based primarily upon tringle coal, using the one direction point along Z axis
Layer, the slicing delamination method needs to increase for hanging structure to be supported and could shape, not only waste of materials, and add part
Manufacturing cycle.In recent years, domestic and international research institution proposes some five axle slicing delamination methods, can be according to the structures of printing objects
Change the direction of section, but these methods still are based on tringle coal, can only carry out the slicing delamination of plane, it is still uncomfortable
Close the structure connected containing curved surface.
Therefore, using present increasing material manufacturing method, need increase support to shape for hanging structure, add and beat
The print time so that printing it is less efficient.
The content of the invention
The present invention provides a kind of increasing material manufacturing method and device of feature based, to improve the efficiency of printing.
The embodiment of the present invention provides a kind of increasing material manufacturing method of feature based, including：
Feature decomposition is carried out to part model, the first category feature and the second category feature is obtained, the first kind is characterized as base
In the feature of plane, the Equations of The Second Kind is characterized as the feature based on curved surface；
The corresponding first increasing material manufacturing path of first category feature is obtained according to M axles feature, M is the integer more than 0；
The corresponding second increasing material manufacturing path of second category feature is obtained according to N axles feature, N is the integer more than 0, and
N is not equal to M；
Increasing material is carried out to the part model according to the first increasing material manufacturing path and the second increasing material manufacturing path
Manufacture.
In an embodiment of the present invention, the M=3, the N=5.
In an embodiment of the present invention, it is described to obtain the corresponding first increasing material system of first category feature according to 3 axle features
Path is made, including：
The first geometric properties of 3 axle features are obtained, first geometric properties are stretch characteristic, setting-out feature, based on face
Any of 3 axle features of piece and the 3 axle features based on border；
Obtain first path projecting parameter；The first path projecting parameter includes：First increasing material manufacturing floor height, the first via
Footpath generation mode and first path offset；
First category feature corresponding the is obtained according to first geometric properties and the first path projecting parameter
One increasing material manufacturing path.
In an embodiment of the present invention, it is described to be obtained according to first geometric properties and the first path projecting parameter
The corresponding first increasing material manufacturing path of first category feature, including：
The first category feature midplane is determined according to first geometric properties and the first increasing material manufacturing floor height
Border；
Region in the border is according to the first path generation mode and first path offset generation the
One default increasing material manufacturing path；
Coordinate transform is carried out to the described first default increasing material manufacturing path, first category feature corresponding first is obtained and increases
Material manufactures path.
In an embodiment of the present invention, first geometric properties are the 3 axle features based on dough sheet, described according to described the
One geometric properties and the first increasing material manufacturing floor height determine the border of the first category feature midplane, including：
The plane in first category feature is constructed according to first geometric properties and the first increasing material manufacturing floor height；
Dough sheet in the 3 axle features based on dough sheet cuts the plane, obtains putting down in first category feature
The border in face.
In an embodiment of the present invention, first geometric properties are the 3 axle features based on border, described according to described the
One geometric properties and the first increasing material manufacturing floor height determine the border of the first category feature midplane, including：
The plane in first category feature is constructed according to first geometric properties and the first increasing material manufacturing floor height；
Boundary surface in the 3 axle features based on border cuts the plane, obtains first category feature
The border of midplane.
In an embodiment of the present invention, it is described to obtain the corresponding second increasing material system of second category feature according to 5 axle features
Path is made, including：
The second geometric properties of 5 axle features are obtained, second geometric properties are for the 5 axle features based on dough sheet or based on side
The 5 axle features on boundary；
Obtain the second path planning parameter；The second path planning parameter includes：Second increasing material manufacturing floor height, the second tunnel
Footpath generation mode and the second path offset amount；
The second category feature according to second geometric properties and the second path planning parameter acquiring corresponding
Two increasing material manufacturing paths.
In an embodiment of the present invention, second geometric properties are the 5 axle features based on dough sheet, described according to described the
The corresponding second increasing material manufacturing path of second category feature described in two geometric properties and the second path planning parameter acquiring, bag
Include：
The reference surface is offset according to the second increasing material manufacturing floor height, equidistant surface is generated；
Dough sheet in the 5 axle features based on dough sheet cuts the equidistant surface, and generation includes the space on border
Curved surface；
According to the second coordinates measurement pattern and second path offset in the space curved surface comprising border
The default increasing material manufacturing path of amount generation second；
Coordinate transform is carried out to the described second default increasing material manufacturing path, second category feature corresponding second is obtained and increases
Material manufactures path.
In an embodiment of the present invention, second geometric properties are the 5 axle features based on border, described according to described the
The corresponding second increasing material manufacturing path of second category feature described in two geometric properties and the second path planning parameter acquiring, bag
Include：
The reference surface is offset according to the second increasing material manufacturing floor height, equidistant surface is generated；
Boundary surface in the 5 axle features based on border cuts the equidistant surface, and generation includes border
Space curved surface；
According to the second coordinates measurement pattern and second path offset in the space curved surface comprising border
The default increasing material manufacturing path of amount generation second；
Coordinate transform is carried out to the described second default increasing material manufacturing path, second category feature corresponding second is obtained and increases
Material manufactures path.
The embodiment of the present invention also provides a kind of increasing material manufacturing device of feature based, including：
Decomposing module, for carrying out feature decomposition to part model, obtains the first category feature and the second category feature, and described the
One category feature is the feature based on plane, and the Equations of The Second Kind is characterized as the feature based on curved surface；
Acquisition module, for obtaining the corresponding first increasing material manufacturing path of first category feature according to M axles feature, M is
Integer more than 0；
The acquisition module, is additionally operable to obtain the corresponding second increasing material manufacturing road of second category feature according to N axles feature
Footpath, N is the integer more than 0, and N is not equal to M；
Processing module, for according to the first increasing material manufacturing path and the second increasing material manufacturing path to the part
Model carries out increasing material manufacturing.
The increasing material manufacturing method and device of feature based provided in an embodiment of the present invention, is carrying out increasing material system to part model
When making, by first carrying out feature decomposition to part model, the first category feature and the second category feature are obtained, the first kind is characterized as being based on
The feature of plane, Equations of The Second Kind is characterized as the feature based on curved surface；The first category feature corresponding first is obtained further according to M axles feature to increase
Material manufactures path, and obtains the corresponding second increasing material manufacturing path of the second category feature according to N axles feature, and first is being got respectively
After the corresponding first increasing material manufacturing path of category feature and the corresponding second increasing material manufacturing path of the second category feature, increase according to first
Material manufactures path and the second increasing material manufacturing path and carries out increasing material manufacturing to part model, so as to reduce the time-write interval, improves
Printing effect.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to do one simply to introduce, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of schematic flow sheet of the increasing material manufacturing method of feature based provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of the increasing material manufacturing feature of feature based provided in an embodiment of the present invention；
Fig. 3 is a kind of flow for obtaining the corresponding first increasing material manufacturing path of the first category feature provided in an embodiment of the present invention
Schematic diagram；
Fig. 4 is a kind of flow for obtaining the corresponding second increasing material manufacturing path of the second category feature provided in an embodiment of the present invention
Schematic diagram；
Fig. 5 a are a kind of schematic diagram of impeller pattern provided in an embodiment of the present invention；
Fig. 5 b are a kind of schematic diagram of wheel hub provided in an embodiment of the present invention；
Fig. 5 c are a kind of schematic diagram of blade provided in an embodiment of the present invention；
Fig. 5 d are a kind of schematic diagram of the plane of 3 axle feature provided in an embodiment of the present invention；
Fig. 5 e are a kind of schematic diagram on the border of 3 axle feature provided in an embodiment of the present invention；
Fig. 5 f are a kind of schematic diagram in the first increasing material manufacturing path of wheel hub provided in an embodiment of the present invention；
Fig. 5 g provide a kind of schematic diagram of the deflection reference curved surface of 5 axle feature of embodiment for the present invention；
Fig. 5 h are a kind of schematic diagram of the curved surface area of 5 axle feature provided in an embodiment of the present invention；
Fig. 5 i are a kind of schematic diagram in the second increasing material manufacturing path of blade provided in an embodiment of the present invention；
Fig. 6 is a kind of structural representation of the increasing material manufacturing device of feature based provided in an embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Term " first ", " second ", " the 3rd " in description and claims of this specification and above-mentioned accompanying drawing, "
The (if present)s such as four " are for distinguishing similar object, without for describing specific order or precedence.It should manage
The data that solution is so used can be exchanged in the appropriate case, so as to embodiments of the invention described herein, for example can be with
Order in addition to those for illustrating or describing herein is implemented.In addition, term " comprising " and " having " and their times
What is deformed, it is intended that covering is non-exclusive to be included, for example, contain the process of series of steps or unit, method, system,
Product or equipment are not necessarily limited to those steps clearly listed or unit, but may include not list clearly or for
The intrinsic other steps of these processes, method, product or equipment or unit.
It should be noted that these specific embodiments can be combined with each other below, for same or analogous concept
Or process may be repeated no more in certain embodiments.
Fig. 1 is a kind of schematic flow sheet of the increasing material manufacturing method of feature based provided in an embodiment of the present invention, and this is based on
The increasing material manufacturing method of feature can be performed by the increasing material manufacturing device of feature based, example, the increasing material system of the feature based
Making device can be independently arranged, can also it is integrated within a processor.Specific shown in Figure 1, the increasing material system of the feature based
The method of making can include：
S101, to part model carry out feature decomposition, obtain the first category feature and the second category feature.
Wherein, the first kind is characterized as the feature based on plane, and Equations of The Second Kind is characterized as the feature based on curved surface.Example,
In the embodiment of the present invention, the number of the first category feature can be one, or 2, here, for of the first category feature
Number, the present invention is not particularly limited.Similarly, for the number of the second category feature, the present invention is equally not particularly limited.
S102, the corresponding first increasing material manufacturing path of the first category feature obtained according to M axles feature.
Wherein, M is the integer more than 0.
After decomposition obtains the first category feature and the second category feature, it is possible to obtain the first category feature according to M axles feature
Corresponding first increasing material manufacturing path.
S103, the corresponding second increasing material manufacturing path of the second category feature obtained according to N axles feature.
Wherein, N is the integer more than 0, and N is not equal to M.
Likewise, after decomposition obtains the first category feature and the second category feature, it is possible to obtain second according to N axles feature
The corresponding second increasing material manufacturing path of category feature.
It should be noted that in embodiments of the present invention, sequencing is had no before S102 and S103, it can first carry out
S102, then perform S103, can also first carry out S103, then perform S102, it is of course also possible to S102 and S103 is performed simultaneously,
This, the embodiment of the present invention is simply to first carry out S102, then performs and illustrate exemplified by S103, but does not represent and of the invention only limit to
In this.
S104, increasing material manufacturing carried out to part model according to the first increasing material manufacturing path and the second increasing material manufacturing path.
The corresponding first increasing material manufacturing path of the first category feature and corresponding second increasing of the second category feature are being got respectively
After material manufacture path, it is possible to part model is increased according to the first increasing material manufacturing path and the second increasing material manufacturing path
Material is manufactured, so as to reduce the time-write interval, improves printing effect.
The increasing material manufacturing method of feature based provided in an embodiment of the present invention, when carrying out increasing material manufacturing to part model,
By first carrying out feature decomposition to part model, the first category feature and the second category feature are obtained, the first kind is characterized as being based on plane
Feature, Equations of The Second Kind is characterized as the feature based on curved surface；The first category feature corresponding first, which is obtained, further according to M axles feature increases material system
Path is made, and the corresponding second increasing material manufacturing path of the second category feature is obtained according to N axles feature, it is special getting the first kind respectively
Levy after corresponding first increasing material manufacturing path and the corresponding second increasing material manufacturing path of the second category feature, material system is increased according to first
Make path and the second increasing material manufacturing path and increasing material manufacturing is carried out to part model, so as to reduce the time-write interval, improve printing
Efficiency.
Based on the corresponding embodiments of Fig. 1, on the basis of the corresponding embodiments of Fig. 1, further, example, in this hair
In bright embodiment, M=3, N=5, certainly, the embodiment of the present invention are illustrated, but do not represent simply with M=3 exemplified by N=5
Present invention is limited only by this.The increasing material manufacturing method of the feature based can also include：
After the first category feature and the second category feature to part model progress feature decomposition, is obtained, it is possible to right respectively
First category feature and the second category feature carry out increasing material manufacturing path planning, so that obtaining the first category feature corresponding first increases material
Manufacture path and the corresponding second increasing material manufacturing path of the second category feature.Detailed process refers to as follows：
Shown in Figure 2, Fig. 2 is a kind of schematic diagram of increasing material manufacturing feature provided in an embodiment of the present invention.Part mould
The increasing material manufacturing feature of type can include the first category feature the first geometric properties (such as 3 axle features) and the second category feature second
Geometric properties (such as 5 axle features).Wherein, 3 axle features and 5 axles are characterized as the subcharacter of increasing material manufacturing feature, and 3 axle features can be wrapped
Include：Stretch characteristic, setting-out feature, the 3 axle features based on dough sheet and the 3 axle features based on border；Stretch characteristic can include grass
Map contour, stretching height, drafting angle and wall thickness；Setting-out feature can include sketch outline, guide line and wall thickness；Based on dough sheet
3 axle features can include dough sheet list；The 3 axle features based on border can include boundary surface list.5 axle features can be wrapped
The 5 axle features based on dough sheet and the 5 axle features based on border are included, the 5 axle features based on dough sheet can include dough sheet list；It is based on
The 5 axle features on border can include boundary surface list.Certain in a certain feature in getting 3 axle features and 5 axle features
After one feature, it is possible to the increasing material manufacturing path of part model is obtained according to the 3 axle feature and 5 axle features.
In embodiments of the present invention, the process for obtaining the corresponding first increasing material manufacturing path of the first category feature can be found in Fig. 3
Shown, Fig. 3 shows for a kind of flow for obtaining the corresponding first increasing material manufacturing path of the first category feature provided in an embodiment of the present invention
It is intended to.
S301, the first geometric properties for obtaining 3 axle features.
Wherein, the first geometric properties are stretch characteristic, setting-out feature, the 3 axle features based on dough sheet and 3 axles based on border
Any of feature.It is worth noting that, 3 axle is characterized in be defined based on local coordinate system, and the 3 axle feature is located at office
On the X/Y plane of portion's coordinate system, in Z axis positive direction side.Example, stretch characteristic can include：Sketch outline (only one of which,
On local coordinate system X/Y plane), stretching height, the parameter such as drafting angle and wall thickness (being used to indicate that extrusion is thin-walled).
Setting-out feature can include：Sketch outline (at least two, in the plane parallel with local coordinate system X/Y plane), guiding
The parameters such as line (for Hypothesis of Single Curve Build Up or the curve of a plurality of curve combination), wall thickness (being used to indicate that setting-out body is thin-walled).Based on dough sheet
3 axle features can include：Dough sheet (dough sheet information is stored in dough sheet list parameter), generally tri patch.Based on border
3 axle features can include：(plane or curved surface are stored in boundary surface list parameter to the closed body that plane or curved surface are included
In).
S302, acquisition first path projecting parameter.
Wherein, first path projecting parameter can include：First increasing material manufacturing floor height, first path generation mode and first
Path offset amount.First path generation mode can include the pattern commonly used in increasing material manufacturing, such as scan line mode, zig-zag
Pattern, contour line modes of deflection etc..
S303, the border for determining according to the first geometric properties and the first increasing material manufacturing floor height the first category feature midplane.
Optionally, in embodiments of the present invention, S303 determines according to the first geometric properties and the first increasing material manufacturing floor height
The border of one category feature midplane can be realized by following two possible modes：
In the first possible implementation, the first geometric properties are stretch characteristic or setting-out feature, can direct root
The border for determining the first category feature midplane is calculated according to the first geometric properties and the first increasing material manufacturing floor height.
In second of possible implementation, the first geometric properties are the 3 axle features based on dough sheet, and S303 can be wrapped
Include：
The plane in the first category feature is constructed according to the first geometric properties and the first increasing material manufacturing floor height；According to based on dough sheet
3 axle features in dough sheet cut plane, obtain the border of the first category feature midplane.
In the third possible implementation, the first geometric properties are the 3 axle features based on border, and 303 can include：
The plane in the first category feature is constructed according to the first geometric properties and the first increasing material manufacturing floor height；According to based on border
3 axle features in boundary surface cut plane, obtain the border of the first category feature midplane.
S304, the region in border are according to first path generation mode and the default increasing of first path offset generation first
Material manufactures path.
S305, coordinate transform is carried out to the first default increasing material manufacturing path, obtain the first category feature corresponding first and increase material
Manufacture path.
In embodiments of the present invention, the first default increasing material manufacturing path is entered according to local coordinate system matrix M inverse matrix
Line translation, because the above-mentioned first default increasing material manufacturing path is that under local coordinate system, the path coordinate after conversion is sat to be global
Coordinate value under mark system, so as to obtain the corresponding first increasing material manufacturing path of the first category feature.
Further, in embodiments of the present invention, the process in the corresponding second increasing material manufacturing path of the second category feature is obtained
Reference can be made to shown in Fig. 4, Fig. 4 is a kind of corresponding second increasing material manufacturing path of second category feature of acquisition provided in an embodiment of the present invention
Schematic flow sheet.
S401, the second geometric properties for obtaining 5 axle features.
Wherein, the second geometric properties are the 5 axle features based on dough sheet or the 5 axle features based on border.It is worth noting that,
5 axle is characterized in be defined based on local coordinate system and reference surface, and the 5 axle feature is located on the reference surface.Example,
The 5 axle features based on dough sheet can include：Dough sheet (dough sheet information is stored in dough sheet list parameter), generally tri patch.
The 5 axle features based on border include：(plane or curved surface are stored in boundary surface list ginseng to the closed body that plane or curved surface are included
In number).
S402, the second path planning parameter of acquisition.
Wherein, the second path planning parameter can include：Second increasing material manufacturing floor height, the second coordinates measurement pattern and second
Path offset amount.Second coordinates measurement pattern include increasing material manufacturing in commonly use pattern, such as scan line mode, zig-zag patterns,
Contour line modes of deflection etc..
S403, according to the second geometric properties and second the second category feature of path planning parameter acquiring it is corresponding second increase material system
Make path.
Wherein, the second increasing material manufacturing path can include locus coordinate and tool direction, and tool direction may be configured as
The normal direction of curved surface.
Optionally, in embodiments of the present invention, S403 is according to the second geometric properties and the second path planning parameter acquiring
The corresponding second increasing material manufacturing path of two category features can be realized by following two possible modes：
In the first possible mode：Second geometric properties are the 5 axle features based on dough sheet, and S403 can include：
According to the second increasing material manufacturing floor height deflection reference curved surface, equidistant surface is generated；According in the 5 axle features based on dough sheet
Dough sheet cut equidistant surface, generation includes the space curved surface on border；According to the second path in the space curved surface comprising border
Generation mode and the default increasing material manufacturing path of the second path offset amount generation second；Second default increasing material manufacturing path is sat
Mark conversion, obtains the corresponding second increasing material manufacturing path of the second category feature.
Wherein, when needing the curve of deviation to generate the second default increasing material manufacturing path in reference surface, offset distance according to
Second path offset amount is set, and calculations of offset is calculated by geodesic curve distance, it is ensured that the offset distance is reference surface
On distance.In addition, line translation is entered to the second default increasing material manufacturing path according to local coordinate system matrix M inverse matrix, due to
Above-mentioned second default increasing material manufacturing path is that under local coordinate system, path coordinate and tool direction after conversion are world coordinates
Coordinate value under system.
In second of possible mode, the second geometric properties are the 5 axle features based on border, and S403 can include：
According to the second increasing material manufacturing floor height deflection reference curved surface, equidistant surface is generated；According in the 5 axle features based on border
Boundary surface cut equidistant surface, generation includes the space curved surface on border；According to path in the space curved surface comprising border
Generation mode and the default increasing material manufacturing path of path offset amount generation second；Coordinate change is carried out to the second default increasing material manufacturing path
Change, obtain the corresponding second increasing material manufacturing path of the second category feature.
It should be noted that in embodiments of the present invention, sequencing is had no before S301-S305 and S401-S403, can
To first carry out S301-S305, then S401-S403 is performed, S401-S403 can also be first carried out, then perform S301-S305, certainly,
S301-S305 and S401-S403 can also be performed simultaneously, here, the embodiment of the present invention is simply to first carry out S301-S305, then
Perform and illustrate exemplified by S401-S403, but do not represent that present invention is limited only by this.
Respectively obtaining the corresponding first increasing material manufacturing path of the first category feature and the corresponding second increasing material of the second category feature
After manufacture path, it is possible to part model is carried out to increase material system according to the first increasing material manufacturing path and the second increasing material manufacturing path
Make, so as to reduce the time-write interval, improve printing effect.
In actual application, illustrate, refer to shown in Fig. 5 a, Fig. 5 a so that part model is impeller pattern as an example
For a kind of schematic diagram of impeller pattern provided in an embodiment of the present invention.In embodiments of the present invention, the impeller pattern is increased
When material is manufactured, feature decomposition first is carried out to the impeller pattern, the first category feature (i.e. wheel hub) and the second category feature (i.e. leaf is obtained
Wheel), refer to shown in Fig. 5 b and Fig. 5 c, Fig. 5 b are a kind of schematic diagram of wheel hub provided in an embodiment of the present invention, Fig. 5 c are this hair
A kind of schematic diagram for blade that bright embodiment is provided；Wherein, hubless feature is the 3 axle features based on border, its local coordinate system
Origin is located at wheel hub bottom center, and X/Y plane is overlapped with wheel hub bottom surface；Leaf characteristic is the 5 axle features based on border, and it is referred to
Curved surface is wheel hub surface, and for the wheel hub of the 3 axle features based on border, the corresponding first increasing material manufacturing path planning process of wheel hub is such as
Under：The plane parallel with local coordinate system X/Y plane is constructed according to the first increasing material manufacturing floor height, is referred to shown in Fig. 5 d；Fig. 5 d are
A kind of schematic diagram of the plane of 3 axle feature provided in an embodiment of the present invention；Plane is cut with the solid of hubless feature, must can be needed
The border of material plane domain is accumulated, is referred to shown in Fig. 5 e；Fig. 5 e are a kind of 3 axle feature provided in an embodiment of the present invention
The schematic diagram on border；The first increasing material manufacturing path is generated in the plane domain for needing to accumulate material, tool direction is put down with Z axis
OK, wherein the path of a certain layer can be found in shown in Fig. 5 f, Fig. 5 f increase material for the first of a kind of wheel hub provided in an embodiment of the present invention
The schematic diagram in path is manufactured, it can thus be concluded that the first increasing material manufacturing path of the wheel hub to 3 axle features.
For the 5 axle leaf characteristics based on border, its local coordinate system is identical with wheel hub coordinate system, blade corresponding second
Increasing material manufacturing path planning process is as follows：According to the second increasing material manufacturing floor height deflection reference curved surface, reference can be made to shown in Fig. 5 g, Fig. 5 g
For a kind of schematic diagram of the deflection reference curved surface of 5 axle feature provided in an embodiment of the present invention, cut with leaf characteristic solid inclined
Curved surface after shifting, obtains the curved surface area for needing to accumulate material, refers to shown in Fig. 5 h；Fig. 5 h are provided in an embodiment of the present invention
A kind of schematic diagram of the curved surface area of 5 axle feature；The second increasing material manufacturing path is generated in the curved surface area for needing to accumulate material,
The path of wherein a certain layer can be found in shown in Fig. 5 i, and Fig. 5 i are a kind of the second increasing material manufacturing of blade provided in an embodiment of the present invention
The schematic diagram in path, it can thus be concluded that the second increasing material manufacturing path of the impeller of 5 axle features.Finally, if local coordinate system with it is complete
Office's coordinate system is different, then carries out the conversion process in increasing material manufacturing path, and then complete the increasing material path rule of the feature based of impeller
Streak journey.
Fig. 6 is a kind of structural representation of the increasing material manufacturing device 60 of feature based provided in an embodiment of the present invention, please be joined
As shown in Figure 6, certainly, the embodiment of the present invention is simply illustrated by taking Fig. 6 as an example, but does not represent that present invention is limited only by this.
The increasing material manufacturing device 60 of the feature based can include：
Decomposing module 601, for carrying out feature decomposition to part model, obtains the first category feature and the second category feature, the
One category feature is the feature based on plane, and Equations of The Second Kind is characterized as the feature based on curved surface.
Acquisition module 602, for obtaining the corresponding first increasing material manufacturing path of the first category feature according to M axles feature, M is big
In 0 integer.
Acquisition module 602, is additionally operable to obtain the corresponding second increasing material manufacturing path of the second category feature according to N axles feature, N is
Integer more than 0, and N is not equal to M.
Processing module 603, for being carried out according to the first increasing material manufacturing path and the second increasing material manufacturing path to part model
Increasing material manufacturing.
Optionally, acquisition module 602, the first geometric properties specifically for obtaining 3 axle features, the first geometric properties are drawing
Stretch any of feature, setting-out feature, the 3 axle features based on dough sheet and the 3 axle features based on border；Obtain first path rule
Draw parameter；First path projecting parameter includes：First increasing material manufacturing floor height, first path generation mode and first path skew
Amount；The corresponding first increasing material manufacturing path of first category feature is obtained according to the first geometric properties and first path projecting parameter.
Optionally, acquisition module 602, specifically for determining first according to the first geometric properties and the first increasing material manufacturing floor height
The border of category feature midplane；Region in border is according to first path generation mode and first path offset generation first
Default increasing material manufacturing path；Coordinate transform is carried out to the first default increasing material manufacturing path, the first category feature corresponding first is obtained
Increasing material manufacturing path.
Optionally, the first geometric properties are the 3 axle features based on dough sheet, acquisition module 602, specifically for according to more than the first
What feature and the first increasing material manufacturing floor height construct the plane in the first category feature；According to the dough sheet in the 3 axle features based on dough sheet
Plane is cut, the border of the first category feature midplane is obtained.
Optionally, the first geometric properties are the 3 axle features based on border, acquisition module 602, specifically for according to more than the first
What feature and the first increasing material manufacturing floor height construct the plane in the first category feature；According to the border in the 3 axle features based on border
Surface trimming plane, obtains the border of the first category feature midplane.
Optionally, acquisition module 602, the second geometric properties specifically for obtaining 5 axle features, the second geometric properties are base
In 5 axle features of dough sheet or 5 axle features based on border；Obtain the second path planning parameter；Second path planning parameter includes：
Second increasing material manufacturing floor height, the second coordinates measurement pattern and the second path offset amount；According to the second geometric properties and the second path
Projecting parameter obtains the corresponding second increasing material manufacturing path of the second category feature.
Optionally, the second geometric properties are the 5 axle features based on dough sheet, acquisition module 602, specifically for increasing according to second
Material manufactures floor height deflection reference curved surface, generates equidistant surface；Dough sheet in the 5 axle features based on dough sheet cuts equidistant bent
Face, generation includes the space curved surface on border；According to the second coordinates measurement pattern and the second tunnel in the space curved surface comprising border
The default increasing material manufacturing path of footpath offset generation second；Coordinate transform is carried out to the second default increasing material manufacturing path, second is obtained
The corresponding second increasing material manufacturing path of category feature.
Optionally, the second geometric properties are the 5 axle features based on border, acquisition module 602, specifically for increasing according to second
Material manufactures floor height deflection reference curved surface, generates equidistant surface；Boundary surface in the 5 axle features based on border cuts equidistant
Curved surface, generation includes the space curved surface on border；According to the second coordinates measurement pattern and second in the space curved surface comprising border
The default increasing material manufacturing path of path offset amount generation second；Coordinate transform is carried out to the second default increasing material manufacturing path, the is obtained
The corresponding second increasing material manufacturing path of two category features.
The increasing material manufacturing device of feature based shown in the embodiment of the present invention, can be performed shown in above method embodiment
Technical scheme, its realization principle and beneficial effect are similar, are no longer repeated herein.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, performs the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of increasing material manufacturing method of feature based, it is characterised in that including：
Feature decomposition is carried out to part model, the first category feature and the second category feature is obtained, the first kind is characterized as based on flat
The feature in face, the Equations of The Second Kind is characterized as the feature based on curved surface；
The corresponding first increasing material manufacturing path of first category feature is obtained according to M axles feature, M is the integer more than 0；
The corresponding second increasing material manufacturing path of second category feature is obtained according to N axles feature, N is the integer more than 0, and N is not
Equal to M；
Increasing material manufacturing is carried out to the part model according to the first increasing material manufacturing path and the second increasing material manufacturing path.
2. according to the method described in claim 1, it is characterised in that
The M=3, the N=5.
3. method according to claim 2, it is characterised in that described to obtain first category feature pair according to 3 axle features
The the first increasing material manufacturing path answered, including：
The first geometric properties of 3 axle features are obtained, first geometric properties are stretch characteristic, setting-out feature, 3 based on dough sheet
Any of axle feature and 3 axle features based on border；
Obtain first path projecting parameter；The first path projecting parameter includes：First increasing material manufacturing floor height, first path life
Become the mode and first path offset；
First category feature corresponding first is obtained according to first geometric properties and the first path projecting parameter to increase
Material manufactures path.
4. method according to claim 3, it is characterised in that described according to first geometric properties and the first via
Footpath projecting parameter obtains the corresponding first increasing material manufacturing path of first category feature, including：
The border of the first category feature midplane is determined according to first geometric properties and the first increasing material manufacturing floor height；
Region in the border is pre- according to the first path generation mode and first path offset generation first
If increasing material manufacturing path；
Coordinate transform is carried out to the described first default increasing material manufacturing path, first category feature corresponding first is obtained and increases material system
Make path.
5. method according to claim 4, it is characterised in that
First geometric properties are the 3 axle features based on dough sheet, described to be increased according to first geometric properties with described first
Material manufacture floor height determines the border of the first category feature midplane, including：
The plane in first category feature is constructed according to first geometric properties and the first increasing material manufacturing floor height；
Dough sheet in the 3 axle features based on dough sheet cuts the plane, obtains the first category feature midplane
Border.
6. method according to claim 4, it is characterised in that
First geometric properties are the 3 axle features based on border, described to be increased according to first geometric properties with described first
Material manufacture floor height determines the border of the first category feature midplane, including：
The plane in first category feature is constructed according to first geometric properties and the first increasing material manufacturing floor height；
Boundary surface in the 3 axle features based on border cuts the plane, obtains putting down in first category feature
The border in face.
7. method according to claim 2, it is characterised in that described to obtain second category feature pair according to 5 axle features
The the second increasing material manufacturing path answered, including：
The second geometric properties of 5 axle features are obtained, second geometric properties are for the 5 axle features based on dough sheet or based on border
5 axle features；
Obtain the second path planning parameter；The second path planning parameter includes：Second increasing material manufacturing floor height, the life of the second path
Become the mode and the second path offset amount；
The second category feature according to second geometric properties and the second path planning parameter acquiring corresponding second increases
Material manufactures path.
8. method according to claim 7, it is characterised in that
Second geometric properties are the 5 axle features based on dough sheet, described according to second geometric properties and second tunnel
Footpath projecting parameter obtains the corresponding second increasing material manufacturing path of second category feature, including：
The reference surface is offset according to the second increasing material manufacturing floor height, equidistant surface is generated；
Dough sheet in the 5 axle features based on dough sheet cuts the equidistant surface, and generation includes the space curved surface on border；
Given birth in the space curved surface comprising border according to the second coordinates measurement pattern and the second path offset amount
Into the second default increasing material manufacturing path；
Coordinate transform is carried out to the described second default increasing material manufacturing path, second category feature corresponding second is obtained and increases material system
Make path.
9. method according to claim 7, it is characterised in that
Second geometric properties are the 5 axle features based on border, described according to second geometric properties and second tunnel
Footpath projecting parameter obtains the corresponding second increasing material manufacturing path of second category feature, including：
The reference surface is offset according to the second increasing material manufacturing floor height, equidistant surface is generated；
Boundary surface in the 5 axle features based on border cuts the equidistant surface, and generation includes the space on border
Curved surface；
Given birth in the space curved surface comprising border according to the second coordinates measurement pattern and the second path offset amount
Into the second default increasing material manufacturing path；
Coordinate transform is carried out to the described second default increasing material manufacturing path, second category feature corresponding second is obtained and increases material system
Make path.
10. a kind of increasing material manufacturing device of feature based, it is characterised in that including：
Decomposing module, for carrying out feature decomposition to part model, obtains the first category feature and the second category feature, the first kind
The feature based on plane is characterized as, the Equations of The Second Kind is characterized as the feature based on curved surface；
Acquisition module, for obtaining the corresponding first increasing material manufacturing path of first category feature according to M axles feature, M is more than 0
Integer；
The acquisition module, is additionally operable to obtain the corresponding second increasing material manufacturing path of second category feature, N according to N axles feature
For the integer more than 0, and N is not equal to M；
Processing module, for according to the first increasing material manufacturing path and the second increasing material manufacturing path to the part model
Carry out increasing material manufacturing.
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| CN117564419A (en) * | 2024-01-17 | 2024-02-20 | 西安稀有金属材料研究院有限公司 | Magnesium alloy shell piece with blind holes, plate ribs and outer flange and preparation method thereof |
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