CN106985395B - Increasing material manufacturing method and device based on feature - Google Patents
Increasing material manufacturing method and device based on feature Download PDFInfo
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- CN106985395B CN106985395B CN201710148863.7A CN201710148863A CN106985395B CN 106985395 B CN106985395 B CN 106985395B CN 201710148863 A CN201710148863 A CN 201710148863A CN 106985395 B CN106985395 B CN 106985395B
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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
Abstract
The present invention provides a kind of increasing material manufacturing method and device based on feature, belongs to increases material manufacturing technology field.This method comprises: carrying out feature decomposition to part model, the first category feature and the second category feature are obtained, the first category feature is the feature based on plane, and the second category feature is the feature based on curved surface；The first category feature corresponding first increasing material manufacturing path is obtained according to M axis feature, M is the integer greater than 0；The second category feature corresponding second increasing material manufacturing path is obtained according to N axis feature, N is the integer greater 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.Increasing material manufacturing method and device provided by the invention based on feature, improves the efficiency of printing.
Description
Technical field
The present invention relates to increases material manufacturing technology field more particularly to a kind of increasing material manufacturing method and devices based on feature.
Background technique
Increasing material manufacturing (Additive Manufacturing, AM), is called 3D printing, is used by CAD design data
The technology for the method manufacture entity component that material successively adds up, is one kind of rapid shaping technique.The increases material manufacturing technology is usual
By 3D modeling, hierarchy slicing, path planning, forming parts and etc. form, since 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, aerospace, 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 need to increase support for hanging structure and could shape, and not only waste material, but also increase part
Manufacturing cycle.In recent years, domestic and international research institution proposes some five axis slicing delamination methods, can be according to the structure of printing objects
Change the direction of slice, 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, needing to increase support for hanging structure could shape, and increase and beat
The time is printed, so that the efficiency of printing is lower.
Summary of the invention
The present invention provides a kind of increasing material manufacturing method and device based on feature, to improve the efficiency of printing.
The embodiment of the present invention provides a kind of increasing material manufacturing method based on feature, comprising:
Feature decomposition is carried out to part model, obtains the first category feature and the second category feature, first category feature is base
In the feature of plane, second category feature is the feature based on curved surface；
The first category feature corresponding first increasing material manufacturing path is obtained according to M axis feature, M is the integer greater than 0；
The second category feature corresponding second increasing material manufacturing path is obtained according to N axis feature, N is the integer greater than 0, and
N is not equal to M；
Increasing material is carried out to the part model according to first increasing material manufacturing path and 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, described to obtain the corresponding first increasing material system of first category feature according to 3 axis features
Make path, comprising:
The first geometrical characteristic of 3 axis features is obtained, first geometrical characteristic is stretch characteristic, setting-out feature, is based on face
Any one of 3 axis features of piece and the 3 axis features based on boundary；
Obtain first path projecting parameter；The first path projecting parameter includes: the first increasing material manufacturing layer height, the first via
Diameter generates mode and first path offset；
First category feature corresponding the is obtained according to first geometrical characteristic and the first path projecting parameter
One increasing material manufacturing path.
In an embodiment of the present invention, described to be obtained according to first geometrical characteristic and the first path projecting parameter
First category feature corresponding first increasing material manufacturing path, comprising:
Plane in first category feature is determined according to first geometrical characteristic and the first increasing material manufacturing layer height
Boundary；
Region in the boundary according to the first path generates mode and the first path offset generates the
One default increasing material manufacturing path；
Described first default increasing material manufacturing path is coordinately transformed, first category feature corresponding first is obtained and increases
Material manufactures path.
In an embodiment of the present invention, first geometrical characteristic is the 3 axis features based on dough sheet, described according to described the
One geometrical characteristic and the first increasing material manufacturing layer height determine the boundary of plane in first category feature, comprising:
The plane in first category feature is constructed according to first geometrical characteristic and the first increasing material manufacturing layer height；
The plane is cut according to the dough sheet in the 3 axis features based on dough sheet, obtains putting down in first category feature
The boundary in face.
In an embodiment of the present invention, first geometrical characteristic is the 3 axis features based on boundary, described according to described the
One geometrical characteristic and the first increasing material manufacturing layer height determine the boundary of plane in first category feature, comprising:
The plane in first category feature is constructed according to first geometrical characteristic and the first increasing material manufacturing layer height；
The plane is cut according to the boundary surface in the 3 axis features based on boundary, obtains first category feature
The boundary of middle plane.
In an embodiment of the present invention, described to obtain the corresponding second increasing material system of second category feature according to 5 axis features
Make path, comprising:
The second geometrical characteristic of 5 axis features is obtained, second geometrical characteristic is the 5 axis feature based on dough sheet or is based on side
The 5 axis features on boundary；
Obtain the second path planning parameter；The second path planning parameter includes: the second increasing material manufacturing floor height, the second tunnel
Diameter generates mode and the second path offset amount；
Second category feature corresponding the is obtained according to second geometrical characteristic and the second path planning parameter
Two increasing material manufacturing paths.
In an embodiment of the present invention, second geometrical characteristic is the 5 axis features based on dough sheet, described according to described the
Two geometrical characteristics and the second path planning parameter obtain the second category feature corresponding second increasing material manufacturing path, packet
It includes:
The reference surface is deviated according to the second increasing material manufacturing layer height, generates equidistant surface；
The equidistant surface is cut according to the dough sheet in the 5 axis features based on dough sheet, generates the space comprising boundary
Curved surface；
According to the second coordinates measurement mode and second path offset in the space curved surface comprising boundary
Amount generates the second default increasing material manufacturing path；
Described second default increasing material manufacturing path is coordinately transformed, second category feature corresponding second is obtained and increases
Material manufactures path.
In an embodiment of the present invention, second geometrical characteristic is the 5 axis features based on boundary, described according to described the
Two geometrical characteristics and the second path planning parameter obtain the second category feature corresponding second increasing material manufacturing path, packet
It includes:
The reference surface is deviated according to the second increasing material manufacturing layer height, generates equidistant surface；
The equidistant surface is cut according to the boundary surface in the 5 axis features based on boundary, is generated comprising boundary
Space curved surface；
According to the second coordinates measurement mode and second path offset in the space curved surface comprising boundary
Amount generates the second default increasing material manufacturing path；
Described second default increasing material manufacturing path is coordinately transformed, 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 based on feature, comprising:
Decomposing module obtains the first category feature and the second category feature for carrying out feature decomposition to part model, and described the
One category feature is the feature based on plane, and second category feature is the feature based on curved surface；
Module is obtained, for obtaining the first category feature corresponding first increasing material manufacturing path according to M axis feature, M is
Integer greater than 0；
The acquisition module is also used to obtain the second category feature corresponding second increasing material manufacturing road according to N axis feature
Diameter, N is the integer greater than 0, and N is not equal to M；
Processing module is used for according to first increasing material manufacturing path and second increasing material manufacturing path to the part
Model carries out increasing material manufacturing.
Increasing material manufacturing method and device provided in an embodiment of the present invention based on feature is carrying out part model to increase material system
When making, by first carrying out feature decomposition to part model, obtain the first category feature and the second category feature, the first category feature be based on
The feature of plane, the second category feature are the feature based on curved surface；The first category feature corresponding first is obtained further according to M axis feature to increase
Material manufactures path, and obtains the second category feature corresponding second increasing material manufacturing path according to N axis feature, is getting first respectively
After category feature corresponding first increasing material manufacturing path and the second category feature corresponding second increasing material manufacturing path, increase according to first
Material manufacture path and the second increasing material manufacturing path carry out increasing material manufacturing to part model and improve to reduce the print time
Printing effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to do one simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of flow diagram of the increasing material manufacturing method based on feature provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of the increasing material manufacturing feature based on feature provided in an embodiment of the present invention；
Fig. 3 is a kind of process for obtaining the first category feature corresponding first increasing material manufacturing path provided in an embodiment of the present invention
Schematic diagram；
Fig. 4 is a kind of process for obtaining the second category feature corresponding second increasing material manufacturing path provided in an embodiment of the present invention
Schematic diagram；
Fig. 5 a is a kind of schematic diagram of impeller pattern provided in an embodiment of the present invention；
Fig. 5 b is a kind of schematic diagram of wheel hub provided in an embodiment of the present invention；
Fig. 5 c is a kind of schematic diagram of blade provided in an embodiment of the present invention；
Fig. 5 d is a kind of schematic diagram of the plane of 3 axis feature provided in an embodiment of the present invention；
Fig. 5 e is a kind of schematic diagram on the boundary of 3 axis feature provided in an embodiment of the present invention；
Fig. 5 f is 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 provides the schematic diagram of the deflection reference curved surface of the 5 axis feature of one kind of embodiment for the present invention；
Fig. 5 h is a kind of schematic diagram of the curved surface area of 5 axis feature provided in an embodiment of the present invention；
Fig. 5 i is 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 schematic diagram of the increasing material manufacturing device based on feature provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Description and claims of this specification and term " first ", " second ", " third ", " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein, such as can be with
Sequence other than those of illustrating or describing herein is implemented.In addition, term " includes " and " having " and their times
What is deformed, it is intended that cover it is non-exclusive include, for example, contain the process, method of a series of steps or units, system,
Product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for
The intrinsic other step or units of these process, methods, product or equipment.
It should be noted that these specific embodiments can be combined with each other below, for the same or similar concept
Or process may repeat no more in certain embodiments.
Fig. 1 is a kind of flow diagram of the increasing material manufacturing method based on feature provided in an embodiment of the present invention, this is based on
The increasing material manufacturing method of feature can be executed by the increasing material manufacturing device based on feature, exemplary, should the increasing material system based on feature
Making device can be independently arranged, and also can integrate in the processor.It is specific shown in Figure 1, it should the increasing material system based on feature
The method of making may include:
S101, feature decomposition is carried out to part model, obtains the first category feature and the second category feature.
Wherein, the first category feature is the feature based on plane, and the second category feature is the feature based on curved surface.It is exemplary,
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 are not particularly limited.Similarly, for the number of the second category feature, the present invention is equally not particularly limited.
S102, the first category feature corresponding first increasing material manufacturing path is obtained according to M axis feature.
Wherein, M is the integer greater than 0.
After decomposition obtains the first category feature and the second category feature, so that it may obtain the first category feature according to M axis feature
Corresponding first increasing material manufacturing path.
S103, the second category feature corresponding second increasing material manufacturing path is obtained according to N axis feature.
Wherein, N is the integer greater than 0, and N is not equal to M.
Likewise, after decomposition obtains the first category feature and the second category feature, so that it may obtain second according to N axis feature
Category feature corresponding second increasing material manufacturing path.
It should be noted that in embodiments of the present invention, having no sequencing before S102 and S103, can first carrying out
S102, then S103 is executed, S103 can also be first carried out, then execute S102, it is of course also possible to it is performed simultaneously S102 and S103,
This, the embodiment of the present invention is only to first carry out S102, then executes and be illustrated for S103, but does not represent and of the invention only limit to
In this.
S104, 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 first category feature corresponding first increasing material manufacturing path and corresponding second increasing of the second category feature are being got respectively
Material manufactures after path, so that it may be increased according to the first increasing material manufacturing path and the second increasing material manufacturing path to part model
Material manufacture, to reduce the print time, improves printing effect.
Increasing material manufacturing method provided in an embodiment of the present invention based on feature, 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 category feature is based on plane
Feature, the second category feature be the feature based on curved surface；The first category feature corresponding first, which is obtained, further according to M axis feature increases material system
Path is made, and the second category feature corresponding second increasing material manufacturing path is obtained according to N axis feature, is getting first kind spy respectively
After levying corresponding first increasing material manufacturing path and the second category feature corresponding second increasing material manufacturing path, increase material system according to first
It makes path and the second increasing material manufacturing path and printing is improved to reduce the print time to part model progress increasing material manufacturing
Efficiency.
It is further, exemplary on the basis of Fig. 1 corresponding embodiment based on the corresponding embodiment of Fig. 1, in this hair
In bright embodiment, M=3, N=5, certainly, the embodiment of the present invention are illustrated for N=5 only with M=3, but are not represented
Present invention is limited only by this.The increasing material manufacturing method based on feature can also include:
Feature decomposition is being carried out to part model, after obtaining the first category feature and the second category feature, so that it may 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 second category feature corresponding second increasing material manufacturing path.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 may include the first category feature the first geometrical characteristic (such as 3 axis features) and the second category feature second
Geometrical characteristic (such as 5 axis features).Wherein, 3 axis features and 5 axis features are the subcharacter of increasing material manufacturing feature, and 3 axis features can wrap
It includes: stretch characteristic, setting-out feature, the 3 axis features based on dough sheet and the 3 axis features based on boundary；Stretch characteristic may include grass
Map contour stretches height, drafting angle and wall thickness；Setting-out feature may include sketch outline, guide line and wall thickness；Based on dough sheet
3 axis features may include dough sheet list；The 3 axis features based on boundary may include boundary surface list.5 axis features can wrap
The 5 axis features based on dough sheet and the 5 axis features based on boundary are included, the 5 axis features based on dough sheet may include dough sheet list；It is based on
The 5 axis features on boundary may include boundary surface list.Getting certain in a certain feature and 5 axis features in 3 axis features
After one feature, so that it may obtain the increasing material manufacturing path of part model according to the 3 axis feature and 5 axis features.
In embodiments of the present invention, the process for obtaining the first category feature corresponding first increasing material manufacturing path can be found in Fig. 3
Shown, Fig. 3 is that a kind of process for obtaining the first category feature corresponding first increasing material manufacturing path provided in an embodiment of the present invention is shown
It is intended to.
S301, the first geometrical characteristic for obtaining 3 axis features.
Wherein, the first geometrical characteristic is stretch characteristic, setting-out feature, the 3 axis features based on dough sheet and 3 axis based on boundary
Any one of feature.It is worth noting that, what 3 axis was characterized in defining based on local coordinate system, and the 3 axis feature is located at office
On the X/Y plane of portion's coordinate system, in Z axis positive direction side.It is exemplary, stretch characteristic may include: sketch outline (only one,
On local coordinate system X/Y plane), stretch the parameters such as height, drafting angle and wall thickness (being used to indicate extrusion is thin-walled).
Setting-out feature may include: sketch outline (there are two at least, in the plane parallel with local coordinate system X/Y plane), guidance
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 setting-out body is thin-walled).Based on dough sheet
3 axis features may include: dough sheet (dough sheet information is stored in dough sheet list parameter), generally tri patch.Based on boundary
3 closed bodies that axis feature may include: plane or curved surface includes (plane or curved surface are stored in boundary surface list parameter
In).
S302, first path projecting parameter is obtained.
Wherein, first path projecting parameter may include: the first increasing material manufacturing layer height, first path generation mode and first
Path offset amount.It may include common mode in increasing material manufacturing that first path, which generates mode, such as scan line mode, zig-zag
Mode, contour line modes of deflection etc..
S303, the boundary that plane in the first category feature is determined according to the first geometrical characteristic and the first increasing material manufacturing layer height.
Optionally, in embodiments of the present invention, S303 determines according to the first geometrical characteristic and the first increasing material manufacturing layer height
The boundary of plane can be realized by the possible mode of following two in one category feature:
In the first possible implementation, the first geometrical characteristic be stretch characteristic or setting-out feature, can direct root
The boundary for determining plane in the first category feature is calculated according to the first geometrical characteristic and the first increasing material manufacturing layer height.
In the second possible implementation, the first geometrical characteristic is the 3 axis features based on dough sheet, and S303 can wrap
It includes:
The plane in the first category feature is constructed according to the first geometrical characteristic and the first increasing material manufacturing layer height；According to based on dough sheet
3 axis features in dough sheet cut plane, obtain the boundary of plane in the first category feature.
In the third possible implementation, the first geometrical characteristic is the 3 axis features based on boundary, and 303 may include:
The plane in the first category feature is constructed according to the first geometrical characteristic and the first increasing material manufacturing layer height；According to based on boundary
3 axis features in boundary surface cut plane, obtain the boundary of plane in the first category feature.
S304, the region in boundary generates mode according to first path and first path offset generates the first default increasing
Material manufactures path.
S305, the first default increasing material manufacturing path is coordinately transformed, obtains the first category feature corresponding first and increases material
Manufacture path.
In embodiments of the present invention, according to the inverse matrix of local coordinate system matrix M to the first default increasing material manufacturing path into
Row transformation, since the above-mentioned first default increasing material manufacturing path is under local coordinate system, transformed path coordinate is global sits
Coordinate value under mark system, to obtain the first category feature corresponding first increasing material manufacturing path.
Further, in embodiments of the present invention, the process in the second category feature corresponding second increasing material manufacturing path is obtained
It can be found in shown in Fig. 4, Fig. 4 is a kind of acquisition the second category feature corresponding second increasing material manufacturing path provided in an embodiment of the present invention
Flow diagram.
S401, the second geometrical characteristic for obtaining 5 axis features.
Wherein, the second geometrical characteristic is the 5 axis features based on dough sheet or the 5 axis features based on boundary.It is worth noting that,
What 5 axis was characterized in defining based on local coordinate system and reference surface, and the 5 axis feature is located on the reference surface.It is exemplary,
The 5 axis features based on dough sheet may include: dough sheet (dough sheet information is stored in dough sheet list parameter), generally tri patch.
(plane or curved surface are stored in boundary surface list ginseng to 5 closed bodies that axis feature includes: plane or curved surface includes based on boundary
In number).
S402, the second path planning parameter is obtained.
Wherein, the second path planning parameter may include: the second increasing material manufacturing layer height, the second coordinates measurement mode and second
Path offset amount.Second coordinates measurement mode includes common mode in increasing material manufacturing, as scan line mode, zig-zag mode,
Contour line modes of deflection etc..
S403, the corresponding second increasing material system of the second category feature is obtained according to the second geometrical characteristic and the second path planning parameter
Make path.
Wherein, the second increasing material manufacturing path may include spatial position 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 obtains the according to the second geometrical characteristic and the second path planning parameter
Two category features corresponding second increasing material manufacturing path can be realized by the possible mode of following two:
In the first possible mode: the second geometrical characteristic is the 5 axis features based on dough sheet, and S403 may include:
According to the high deflection reference curved surface of the second increasing material manufacturing layer, equidistant surface is generated；According in the 5 axis features based on dough sheet
Dough sheet cut equidistant surface, generate include boundary space curved surface；According to the second path in the space curved surface comprising boundary
Generation mode and the second path offset amount generate the second default increasing material manufacturing path；Second default increasing material manufacturing path is sat
Mark transformation, obtains the second category feature corresponding second increasing material manufacturing path.
Wherein, needed in reference surface curve of deviation generate the second default increasing material manufacturing path when, offset distance according to
The setting of second path offset amount, calculations of offset is calculated by geodesic curve distance, guarantees that the offset distance is reference surface
On distance.In addition, the second default increasing material manufacturing path is converted according to the inverse matrix of local coordinate system matrix M, due to
Above-mentioned second default increasing material manufacturing path is under local coordinate system, and transformed path coordinate and tool direction are world coordinates
Coordinate value under system.
In second of possible mode, the second geometrical characteristic is the 5 axis features based on boundary, and S403 may include:
According to the high deflection reference curved surface of the second increasing material manufacturing layer, equidistant surface is generated；According in the 5 axis features based on boundary
Boundary surface cut equidistant surface, generate include boundary space curved surface；According to path in the space curved surface comprising boundary
Generation mode and path offset amount generate the second default increasing material manufacturing path；Coordinate change is carried out to the second default increasing material manufacturing path
It changes, obtains the second category feature corresponding second increasing material manufacturing path.
It should be noted that in embodiments of the present invention, sequencing is had no before S301-S305 and S401-S403, it can
To first carry out S301-S305, then S401-S403 is executed, S401-S403 can also be first carried out, then execute S301-S305, certainly,
Also S301-S305 and S401-S403 be may be performed simultaneously, here, the embodiment of the present invention only to first carry out S301-S305, then
It executes and is illustrated for S401-S403, but do not represent that present invention is limited only by this.
Respectively obtaining the first category feature corresponding first increasing material manufacturing path and the corresponding second increasing material of the second category feature
After manufacture path, so that it may carry out increasing material system to part model according to the first increasing material manufacturing path and the second increasing material manufacturing path
It makes, to reduce the print time, improves printing effect.
In actual application, it is illustrated, refers to shown in Fig. 5 a, Fig. 5 a by taking 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, which is increased
When material manufactures, feature decomposition first is carried out to the impeller pattern, obtains the first category feature (i.e. wheel hub) and the second category feature (i.e. leaf
Wheel), it refers to shown in Fig. 5 b and Fig. 5 c, Fig. 5 b is a kind of schematic diagram of wheel hub provided in an embodiment of the present invention, and Fig. 5 c is this hair
A kind of schematic diagram for blade that bright embodiment provides；Wherein, hubless feature is the 3 axis features based on boundary, 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 axis features based on boundary, reference
Curved surface is wheel hub surface, and for the wheel hub of the 3 axis features based on boundary, 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 layer height, is referred to shown in Fig. 5 d；Fig. 5 d is
A kind of schematic diagram of the plane of 3 axis feature provided in an embodiment of the present invention；Plane is cut with the solid of hubless feature, can must be needed
The boundary for accumulating material plane domain refers to shown in Fig. 5 e；Fig. 5 e is a kind of 3 axis feature provided in an embodiment of the present invention
The schematic diagram on boundary；The first increasing material manufacturing path is generated in the plane domain for needing to accumulate material, tool direction and Z axis are flat
Row, wherein the path of a certain layer can be found in shown in Fig. 5 f, Fig. 5 f is a kind of the first increasing material of wheel hub provided in an embodiment of the present invention
The schematic diagram in path is manufactured, this makes it possible to obtain the first increasing material manufacturing paths of the wheel hub of 3 axis features.
For the 5 axis leaf characteristics based on boundary, local coordinate system is identical as wheel hub coordinate system, blade corresponding second
Increasing material manufacturing path planning process is as follows: according to the high deflection reference curved surface of the second increasing material manufacturing layer, 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 axis 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 is provided in an embodiment of the present invention
A kind of schematic diagram of the curved surface area of 5 axis feature；The second increasing material manufacturing path is generated in the curved surface area for needing to accumulate material,
Wherein the path of a certain layer can be found in shown in Fig. 5 i, and Fig. 5 i is a kind of 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 axis features.Finally, if local coordinate system and complete
Office's coordinate system is different, then carries out the conversion process in increasing material manufacturing path, and then completes the increasing material path rule based on feature of impeller
Streak journey.
Fig. 6 is a kind of structural schematic diagram of the increasing material manufacturing device 60 based on feature provided in an embodiment of the present invention, please be joined
As shown in Figure 6, certainly, the embodiment of the present invention is only 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 based on feature may include:
Decomposing module 601, for obtaining the first category feature and the second category feature to part model progress feature decomposition, the
One category feature is the feature based on plane, and the second category feature is the feature based on curved surface.
Module 602 is obtained, for obtaining the first category feature corresponding first increasing material manufacturing path according to M axis feature, M is big
In 0 integer.
Module 602 is obtained, is also used to obtain the second category feature corresponding second increasing material manufacturing path according to N axis feature, N is
Integer greater 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, module 602 is obtained, specifically for obtaining the first geometrical characteristic of 3 axis features, the first geometrical characteristic is to draw
Stretch any one of feature, setting-out feature, the 3 axis features based on dough sheet and 3 axis features based on boundary；Obtain first path rule
Draw parameter；First path projecting parameter includes: that the first increasing material manufacturing layer is high, first path generates mode and first path deviates
Amount；The first category feature corresponding first increasing material manufacturing path is obtained according to the first geometrical characteristic and first path projecting parameter.
Optionally, module 602 is obtained, specifically for determining first according to the first geometrical characteristic and the first increasing material manufacturing layer height
The boundary of plane in category feature；Region in boundary generates mode according to first path and first path offset generates first
Default increasing material manufacturing path；First default increasing material manufacturing path is coordinately transformed, the first category feature corresponding first is obtained
Increasing material manufacturing path.
Optionally, the first geometrical characteristic is the 3 axis features based on dough sheet, obtains module 602, is specifically used for according to more than the first
What feature and the first increasing material manufacturing layer height construct the plane in the first category feature；According to the dough sheet in the 3 axis features based on dough sheet
Plane is cut, the boundary of plane in the first category feature is obtained.
Optionally, the first geometrical characteristic is the 3 axis features based on boundary, obtains module 602, is specifically used for according to more than the first
What feature and the first increasing material manufacturing layer height construct the plane in the first category feature；According to the boundary in the 3 axis features based on boundary
Surface trimming plane obtains the boundary of plane in the first category feature.
Optionally, module 602 is obtained, specifically for obtaining the second geometrical characteristic of 5 axis features, the second geometrical characteristic is base
In 5 axis features of dough sheet or 5 axis features based on boundary；Obtain the second path planning parameter；Second path planning parameter includes:
Second increasing material manufacturing layer height, the second coordinates measurement mode and the second path offset amount；According to the second geometrical characteristic and the second path
Projecting parameter obtains the second category feature corresponding second increasing material manufacturing path.
Optionally, the second geometrical characteristic is the 5 axis features based on dough sheet, obtains module 602, is specifically used for increasing according to second
Material manufactures the high deflection reference curved surface of layer, generates equidistant surface；It is cut according to the dough sheet in the 5 axis features based on dough sheet equidistant bent
Face generates the space curved surface comprising boundary；According to the second coordinates measurement mode and the second tunnel in the space curved surface comprising boundary
Diameter offset generates the second default increasing material manufacturing path；Second default increasing material manufacturing path is coordinately transformed, obtains second
Category feature corresponding second increasing material manufacturing path.
Optionally, the second geometrical characteristic is the 5 axis features based on boundary, obtains module 602, is specifically used for increasing according to second
Material manufactures the high deflection reference curved surface of layer, generates equidistant surface；It is cut according to the boundary surface in the 5 axis features based on boundary equidistant
Curved surface generates the space curved surface comprising boundary；According to the second coordinates measurement mode and second in the space curved surface comprising boundary
Path offset amount generates the second default increasing material manufacturing path；Second default increasing material manufacturing path is coordinately transformed, obtains
Two category features corresponding second increasing material manufacturing path.
Increasing material manufacturing device shown in the embodiment of the present invention based on feature, can execute shown in above method embodiment
Technical solution, realization principle and beneficial effect are similar, are no longer repeated herein.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (8)
1. a kind of increasing material manufacturing method based on feature characterized by comprising
Feature decomposition is carried out to part model, obtains the first category feature and the second category feature, first category feature is based on flat
The feature in face, second category feature are the feature based on curved surface；
The first category feature corresponding first increasing material manufacturing path is obtained according to M axis feature, M is the integer greater than 0；
The second category feature corresponding second increasing material manufacturing path is obtained according to N axis feature, N is the integer greater than 0, and N is not
Equal to M；
Increasing material manufacturing is carried out to the part model according to first increasing material manufacturing path and second increasing material manufacturing path；
It is described that first category feature corresponding first increasing material manufacturing path is obtained according to M axis feature, comprising:
The first geometrical characteristic of M axis feature is obtained, first geometrical characteristic is stretch characteristic, setting-out feature, the M based on dough sheet
Any one of axis feature and the M axis feature based on boundary；
Obtain first path projecting parameter；The first path projecting parameter includes: that the first increasing material manufacturing layer is high, first path is raw
At mode and first path offset；
First category feature corresponding first is obtained according to first geometrical characteristic and the first path projecting parameter to increase
Material manufactures path；
It is described that second category feature corresponding second increasing material manufacturing path is obtained according to N axis feature, comprising:
The second geometrical characteristic of N axis feature is obtained, second geometrical characteristic is for the N axis feature based on dough sheet or based on boundary
N axis feature；
Obtain the second path planning parameter；The second path planning parameter includes: that the second increasing material manufacturing layer is high, the second path is raw
At mode and the second path offset amount；
Second category feature corresponding second is obtained according to second geometrical characteristic and the second path planning parameter to increase
Material manufactures path.
2. the method according to claim 1, wherein
The M=3, the N=5.
3. the method according to claim 1, wherein described according to first geometrical characteristic and the first via
Diameter projecting parameter obtains the first category feature corresponding first increasing material manufacturing path, comprising:
The boundary of plane in first category feature is determined according to first geometrical characteristic and the first increasing material manufacturing layer height；
Region in the boundary generates mode according to the first path and the first path offset generates first in advance
If increasing material manufacturing path；
Described first default increasing material manufacturing path is coordinately transformed, first category feature corresponding first is obtained and increases material system
Make path.
4. according to the method described in claim 3, it is characterized in that,
First geometrical characteristic is the M axis feature based on dough sheet, described to be increased according to first geometrical characteristic with described first
Material manufacture layer height determines the boundary of plane in first category feature, comprising:
The plane in first category feature is constructed according to first geometrical characteristic and the first increasing material manufacturing layer height；
The plane is cut according to the dough sheet in the M axis feature based on dough sheet, obtains plane in first category feature
Boundary.
5. according to the method described in claim 3, it is characterized in that,
First geometrical characteristic is the M axis feature based on boundary, described to be increased according to first geometrical characteristic with described first
Material manufacture layer height determines the boundary of plane in first category feature, comprising:
The plane in first category feature is constructed according to first geometrical characteristic and the first increasing material manufacturing layer height；
The plane is cut according to the boundary surface in the M axis feature based on boundary, obtains putting down in first category feature
The boundary in face.
6. the method according to claim 1, wherein
Second geometrical characteristic is the N axis feature based on dough sheet, described according to second geometrical characteristic and second tunnel
Diameter projecting parameter obtains the second category feature corresponding second increasing material manufacturing path, comprising:
According to the high deflection reference curved surface of the second increasing material manufacturing layer, equidistant surface is generated；
The equidistant surface is cut according to the dough sheet in the N axis feature based on dough sheet, generates the space curved surface comprising boundary；
It is raw according to the second coordinates measurement mode and the second path offset amount in the space curved surface comprising boundary
At the second default increasing material manufacturing path；
Described second default increasing material manufacturing path is coordinately transformed, second category feature corresponding second is obtained and increases material system
Make path.
7. the method according to claim 1, wherein
Second geometrical characteristic is the N axis feature based on boundary, described according to second geometrical characteristic and second tunnel
Diameter projecting parameter obtains the second category feature corresponding second increasing material manufacturing path, comprising:
According to the high deflection reference curved surface of the second increasing material manufacturing layer, equidistant surface is generated；
The equidistant surface is cut according to the boundary surface in the N axis feature based on boundary, generates the space comprising boundary
Curved surface；
It is raw according to the second coordinates measurement mode and the second path offset amount in the space curved surface comprising boundary
At the second default increasing material manufacturing path；
Described second default increasing material manufacturing path is coordinately transformed, second category feature corresponding second is obtained and increases material system
Make path.
8. a kind of increasing material manufacturing device based on feature characterized by comprising
Decomposing module obtains the first category feature and the second category feature, the first kind for carrying out feature decomposition to part model
Feature is the feature based on plane, and second category feature is the feature based on curved surface；
Module is obtained, for obtaining the first category feature corresponding first increasing material manufacturing path according to M axis feature, M is greater than 0
Integer；
The acquisition module is also used to obtain the second category feature corresponding second increasing material manufacturing path, N according to N axis feature
For the integer greater than 0, and N is not equal to M；
Processing module is used for according to first increasing material manufacturing path and second increasing material manufacturing path to the part model
Carry out increasing material manufacturing；
The acquisition module is specifically used for:
The first geometrical characteristic of M axis feature is obtained, first geometrical characteristic is stretch characteristic, setting-out feature, the M based on dough sheet
Any one of axis feature and the M axis feature based on boundary；
Obtain first path projecting parameter；The first path projecting parameter includes: that the first increasing material manufacturing layer is high, first path is raw
At mode and first path offset；
First category feature corresponding first is obtained according to first geometrical characteristic and the first path projecting parameter to increase
Material manufactures path；
The acquisition module also particularly useful for:
The second geometrical characteristic of N axis feature is obtained, second geometrical characteristic is for the N axis feature based on dough sheet or based on boundary
N axis feature；
Obtain the second path planning parameter；The second path planning parameter includes: that the second increasing material manufacturing layer is high, the second path is raw
At mode and the second path offset amount；
Second category feature corresponding second is obtained according to second geometrical characteristic and the second path planning parameter to increase
Material manufactures path.
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| CN108062433B (en) * | 2017-11-26 | 2021-06-18 | 中国人民解放军陆军装甲兵学院 | Gradient curved surface layering method based on additive remanufacturing point cloud model |
| CN108748971A (en) * | 2018-03-08 | 2018-11-06 | 哈尔滨工程大学 | A kind of integrated hydraulic propeller processing method based on 3D printing |
| CN110823581B (en) * | 2019-11-13 | 2021-08-17 | 中国航发动力股份有限公司 | Method for processing swirler and verifying air flow of swirler |
| CN113010960B (en) * | 2021-02-22 | 2023-11-03 | 恒大新能源汽车投资控股集团有限公司 | Method and device for generating part manufacturing control data and computer equipment |
| CN113733295B (en) * | 2021-09-10 | 2022-08-19 | 西安建筑科技大学 | Path optimization method for 3D printing of concrete |
| CN115319241B (en) * | 2022-07-11 | 2024-04-05 | 北京航星机器制造有限公司 | Arc additive manufacturing path planning method and device based on structural curved surface |
| CN117261240B (en) * | 2023-08-28 | 2024-03-29 | 南京衍构科技有限公司 | 3D printing direction-changing plane slicing method and device, electronic equipment and storage medium |
| CN117564419B (en) * | 2024-01-17 | 2024-03-19 | 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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