CN110309568A - Decussation line creation method based on CATIA - Google Patents
Decussation line creation method based on CATIA Download PDFInfo
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- CN110309568A CN110309568A CN201910541018.5A CN201910541018A CN110309568A CN 110309568 A CN110309568 A CN 110309568A CN 201910541018 A CN201910541018 A CN 201910541018A CN 110309568 A CN110309568 A CN 110309568A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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Abstract
Decussation line creation method based on CATIA, the skin model with assembly point is input to CATIA first, current coordinate system is created in CATIA again, the coordinate of final output and method arrow to be transformed under current coordinate system, decussation line is then created according to reference coordinate axis, current coordinate system is set, dimensional parameters needed for selected intersection generates decussation line in the skin model with assembly point, successively select reference coordinate axis, decussation point is projected to punch position determining on piece surface, punching orientation is determined by the characteristic point point information of the decussation line after projecting, to realize that decussation line batch creates, to realize the quick creation of decussation line at multiple hole locations on part, facilitate designer's modelling operability, improve working efficiency.
Description
Technical field
The present invention relates to trim designs technical field more particularly to a kind of decussation line creation sides based on CATIA
Method.
Background technique
Skin part need to drill the decussation for assembling positioning when carrying out assembly positioning on drilling template
The position of line, location hole is determined that cross-point locations are fixed in assembly parts shape by designer by crosspoint and axially bored line
Justice, however part of part does not have hole location information, at this moment need to just create to decussation line, to indicate part
On bore position.
The modeling of decussation line is according to the large number of orifices site that design is given on material object parts, and batch creation is bored for indicating
The decussation line of hole site, the angle of decussation line are defaulted as 90 degree on the basis of reference frame, length by
Design is given, general provision 10mm, but cross wire is to be taken a significant amount of time to draw repeatedly by hand by designer for a long time
It makes, not only working efficiency is low, and error easily occurs.
Summary of the invention
Technical problem solved by the invention is to provide a kind of decussation line creation method based on CATIA, with
Solve the problems in above-mentioned background technique.
Technical problem solved by the invention is realized using following technical scheme:
Decussation line creation method based on CATIA, the specific steps are as follows:
Step 1) creation current coordinate system
The skin model with assembly point is input to CATIA first, then creates current coordinate system in CATIA, it will be final defeated
Coordinate and method arrow out is transformed under current coordinate system, then creates decussation line according to reference coordinate axis；
The selection of reference coordinate axis has arbitrariness, but to guarantee that projection of the decussation line in creation cannot be point, i.e.,
Reference coordinate axis cannot be vertical with perspective plane, therefore when selecting reference coordinate axis between the reference coordinate axis selected and perspective plane
Angle it is smaller more suitable；
Step 2) setting current coordinate system
Current coordinate system is set, and coordinate value of any point in different coordinate systems in three-dimensional space is different, there is absolute seat
Mark and relative coordinate, therefore be set as currently sitting by the coordinate system of needs before the characteristic point for extracting decussation line starts
Mark system, set-up mode are as follows: selection current coordinate system → right click → chosen axis system object → is set as current；
Step 3) parameter input information
It is arranged according to the length of cross spider, selected intersection generates decussation line in the skin model with assembly point
Required dimensional parameters, intersecting line length selection should be suitable for that the length of decussation line is 5mm≤L≤10mm；
Step 4) creation decussation line reference coordinate axis
The selection of reference coordinate axis have arbitrariness, but the reference axis of coordinate system, can also be the natural pattern of location hole to be set up
Arbitrary two straight lines of type, but require selected reference coordinate axis cannot be perpendicular to curved projection surfaces, if in reference coordinate axis
A reference axis it is vertical with perspective plane, then necessarily have a cross spider vertical with perspective plane in the decussation line created,
It is a point on cross spider perspective plane that it is subsequent, which to will lead to intersection line projection, for this, i.e., cannot obtain the characteristic point in cross spider creation
Point information, therefore the reference coordinate axis perpendicular to perspective plane cannot be selected, it is typically chosen the Z of reference coordinate axis in actual operation
Axis and Y-axis；
Step 5) selection cross spider perspective plane
Decussation point is projected to punch position determining on piece surface, punches orientation by the decussation line after projecting
Characteristic point point information determine, to realize that decussation line batch creates.
The utility model has the advantages that through the invention can simple, quick, Mass production skin part cross wire, can directly use
It is designed in the drilling template of designer, greatly facilitates the cross wire of covering class part template to design, greatly improve drilling
Template is in design cycle efficiency.
Detailed description of the invention
Fig. 1 is the skin model schematic diagram with assembly point in presently preferred embodiments of the present invention.
Fig. 2 is the decussation line batch creation module schematic diagram in presently preferred embodiments of the present invention.
Fig. 3 is presently preferred embodiments of the present invention Mass production decussation line schematic diagram on piece surface.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Decussation line creation method based on CATIA, the specific steps are as follows:
Step 1) creation current coordinate system
The skin model with assembly point is input to CATIA first, then creates current coordinate system in CATIA, it will be final defeated
Coordinate and method arrow out is transformed under current coordinate system, then creates decussation line according to reference coordinate axis；
The selection of reference coordinate axis has arbitrariness, but to guarantee that projection of the decussation line in creation cannot be point, i.e.,
Reference coordinate axis cannot be vertical with perspective plane, therefore when selecting reference coordinate axis between the reference coordinate axis selected and perspective plane
Angle it is smaller more suitable；
Step 2) setting current coordinate system
Current coordinate system is set, and coordinate value of any point in different coordinate systems in three-dimensional space is different, there is absolute seat
Mark and relative coordinate, therefore be set as currently sitting by the coordinate system of needs before the characteristic point for extracting decussation line starts
Mark system, set-up mode are as follows: selection current coordinate system → right click → chosen axis system object → is set as current；
Step 3) parameter input information
It is arranged according to the length of cross spider, selected intersection generates decussation line in the skin model with assembly point
Required dimensional parameters, intersecting line length selection should be suitable for that the length of decussation line is in 5mm≤L≤10mm range；
Step 4) creation decussation line reference coordinate axis
The selection of reference coordinate axis have arbitrariness, but the reference axis of coordinate system, can also be the natural pattern of location hole to be set up
Arbitrary two straight lines of type, but require selected reference coordinate axis cannot be perpendicular to curved projection surfaces, if in reference coordinate axis
A reference axis it is vertical with perspective plane, then necessarily have a cross spider vertical with perspective plane in the decussation line created,
It is a point on cross spider perspective plane that it is subsequent, which to will lead to intersection line projection, for this, i.e., cannot obtain the characteristic point in cross spider creation
Point information, therefore the reference coordinate axis perpendicular to perspective plane cannot be selected, it is typically chosen the Z of reference coordinate axis in actual operation
Axis and Y-axis；
Step 5) selection cross spider perspective plane
Decussation point is projected to punch position determining on piece surface, punches orientation by the decussation line after projecting
Characteristic point point information determine, select in the present embodiment part outer surface as perspective plane, realization decussation line is in batches
Creation；
By taking skin part model shown in FIG. 1 as an example:
Model ABCD is a kind of skin part model of band assembly point, and it is the one of skin model external surface that EF, which belongs to straightway,
Boundary line.Using E point as coordinate points, straightway EF is X-axis, and the tangent line EA for crossing the camber line AB of E point is Y-axis, establishes changing coordinates
System；
As shown in Fig. 2, the both direction length of setting decussation line is 10mm according to the actually required of drilling template,
Selection needs to establish the rigging position point set of decussation line；
Selecting two straight lines EA, EF vertical in skin model ABCD is decussation line reference frame, in skin model
The curved surface that the middle outer surface for selecting curved surface covering model ABCD is projected as needs, as shown in figure 3, Mass production ten on curved surface
Font cross spider.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. the decussation line creation method based on CATIA, which is characterized in that specific step is as follows:
Step 1) creation current coordinate system
The skin model with assembly point is input to CATIA first, then creates current coordinate system in CATIA, it will be final
Coordinate and the method arrow of output are transformed under current coordinate system, then create decussation line according to reference coordinate axis；
Step 2) setting current coordinate system
Current coordinate system is set by the coordinate system of needs before the characteristic point for extracting decussation line starts；
Step 3) parameter input information
It is arranged according to the length of decussation line, selected intersection generates cross in the skin model with assembly point
Dimensional parameters needed for cross spider；
Step 4) creation decussation line reference coordinate axis
The selection of reference coordinate axis has arbitrariness, but requires selected reference coordinate axis cannot be perpendicular to curved projection surfaces；
Step 5) selection cross spider perspective plane
Decussation point is projected to punch position determining on piece surface, punches orientation by the decussation line after projecting
Characteristic point point information determine, realize decussation line batch create.
2. the decussation line creation method according to claim 1 based on CATIA, which is characterized in that step 1)
In, the selection of reference coordinate axis has arbitrariness, but to guarantee that projection of the decussation line in creation cannot be point, that is, joins
Examining reference axis cannot be vertical with perspective plane.
3. the decussation line creation method according to claim 2 based on CATIA, which is characterized in that join in selection
When examining reference axis, the angle between the reference coordinate axis of selection and perspective plane is smaller more suitable.
4. the decussation line creation method according to claim 1 based on CATIA, which is characterized in that step 2)
In, the set-up mode of current coordinate system are as follows: selection current coordinate system → right click → chosen axis system object → is set as current.
5. the decussation line creation method according to claim 1 based on CATIA, which is characterized in that step 3)
In, the length of decussation line is 5mm≤L≤10mm.
6. the decussation line creation method according to claim 1 based on CATIA, which is characterized in that step 4)
In, the reference coordinate axis selected is the reference axis of coordinate system or arbitrary two straight lines of the mock-up of location hole to be set up.
7. the decussation line creation method according to claim 6 based on CATIA, which is characterized in that the ginseng of selection
Examine the Z axis and Y-axis that reference axis is reference coordinate axis.
8. the decussation line creation method according to claim 1 based on CATIA, which is characterized in that step 5)
In, select part outer surface as perspective plane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910541018.5A CN110309568B (en) | 2019-06-21 | 2019-06-21 | Cross cross line creating method based on CATIA |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910541018.5A CN110309568B (en) | 2019-06-21 | 2019-06-21 | Cross cross line creating method based on CATIA |
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| CN110309568B CN110309568B (en) | 2022-07-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111611653A (en) * | 2020-04-09 | 2020-09-01 | 广州明珞汽车装备有限公司 | Processing method, system and storage medium for hole assembly design data |
| CN113983907A (en) * | 2021-10-12 | 2022-01-28 | 江西洪都航空工业集团有限责任公司 | Design, manufacture and use method of complex skin part checking fixture |
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| CN108595766A (en) * | 2018-03-27 | 2018-09-28 | 上海市城市建设设计研究总院（集团）有限公司 | Beam lattice system bridge structure modeling method based on CATIA softwares |
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| JPH10269267A (en) * | 1997-03-26 | 1998-10-09 | Matsushita Electric Ind Co Ltd | Method for extracting mask layout parameter |
| US20110148921A1 (en) * | 2009-12-22 | 2011-06-23 | Ko Young-A | Method for Creating Panels and Pattern-Making |
| CN103604424A (en) * | 2010-06-28 | 2014-02-26 | 天宝导航有限公司 | Two dimension layout and point transfer system |
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| CN111611653A (en) * | 2020-04-09 | 2020-09-01 | 广州明珞汽车装备有限公司 | Processing method, system and storage medium for hole assembly design data |
| CN113983907A (en) * | 2021-10-12 | 2022-01-28 | 江西洪都航空工业集团有限责任公司 | Design, manufacture and use method of complex skin part checking fixture |
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| Publication number | Publication date |
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| CN110309568B (en) | 2022-07-08 |
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