CN107180121A - The face domain generation method produced based on high-volume sheet metal component - Google Patents
The face domain generation method produced based on high-volume sheet metal component Download PDFInfo
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- CN107180121A CN107180121A CN201710208326.7A CN201710208326A CN107180121A CN 107180121 A CN107180121 A CN 107180121A CN 201710208326 A CN201710208326 A CN 201710208326A CN 107180121 A CN107180121 A CN 107180121A
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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
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T19/00—Manipulating 3D models or images for computer graphics
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- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The present invention relates to the face domain generation method produced based on high-volume sheet metal component, it comprises the following steps：(1) large stretch of sheet metal component area arrangement plan construction；(2) cad file is transferred；(3) each face domain is generated；(4) the face domain of generation is filtered；(5) output has been generated and by the face domain of filtering.The present invention has parametrization, serialization and automation grade are high, production efficiency is high, save human resources, simple operation and other advantages.
Description
Technical field
The present invention relates to the technical field of metal plate production, more particularly to the face domain generation produced based on high-volume sheet metal component
Method.
Background technology
In industry is manufactured, workpiece modeling is that high-volume sheet metal component produces necessary manufacture link, the quality of modeling and
Speed often determines the efficiency and benefit of production.Traditional workpiece modeling be mainly it is artificial first constructed using computer software it is flat
Then face figure the process such as is stretched and is scanned again.However, the workload manually modeled during the production of high-volume sheet metal component is non-
Chang great, often occurs the situation of repetitive construct plane, less efficient, causes workload redundancy.
Existing face domain production process is, by picture manually one by one, then one by one to produce face domain mostly, so that
To the essential information of modeling, Construction of A Model is carried out again according to these information, may when to single or small lot Modeling in Product
Demand can be also met substantially, but when the sheet metal component that building materials are fitted up is produced in enormous quantities, this process just seems very cumbersome, and
The management to built high-volume model can not be manually realized in construction process one by one and parametrization is realized, such method is really
It is very inconvenient, it have impact on production efficiency.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide serialization and automation grade height, production efficiency
High, saving human resources, the face domain generation method simple to operate produced based on high-volume sheet metal component.
To achieve the above object, technical scheme provided by the present invention is：Method comprises the following steps：
(1) large stretch of sheet metal component area arrangement plan construction：
By CAD layout softwares, sketched out using the basic patterning unit order such as straight line and circular arc each in bulk zone
The arrangement position of sheet metal component and residing planar graph, and be saved in computer disk；
(2) cad file is transferred：
Cad file is opened using rhinoceros software (Rhino, a higher-order curved surfaces 3 d modeling software), is obtained by a large amount of lines
Duan Zucheng sheet metal component plane distribution schematic diagram；
(3) each face domain is generated：
Open Grasshopper (a use programmed algorithm generation models run under Rhino environment of rhinoceros software
Plug-in unit) framework, call face domain to generate program, by selecting signal picture frame, and produce each face domain；
(4) the face domain of generation is filtered；Because can be defined in construction plan view at the beginning by practical layout, both some
Occur that some are stitched between sheet metal component, so can be mixed into some in step (3) generates the set of face domain stitches generated interference
Face domain；
(5) the face domain by generating and by filtering is exported with an output port, to realize serialization, automation and join
Numberization.
Further, the step (3) generates comprising the following steps that for each face domain：
(parameter of curve of 1 pickup outermost is input to face domain generation program, automatically generates comprising whole sheet metal component arrangements
Area surface domain；
(whole curves that the choosing of 2 frames constitutes plan are input in the production routine of face domain, and curve both sides are automatically prolonged into one
The individual threshold value less than slit width degree, prevents that lines are not intersected due to human error when Plane Curved line chart structure from drawing, (1 gives birth to by step
Into area surface domain cut into the face domain comprising multiple planes；
(the 3 face domains for generating routine call rhinoceros software by face domain generate class function, by step (2 planar offsets generated
The multiple unit plane domains of extrusion generation.
Further, step (4) are comprised the following steps that：
1) the ultimate range discriminant parameter stitched in the input port setting of generation face domain program, by face domain, generation program is performed
Screen in whole face domains that for circulations are generated to step (3)；
2) border obtained by program per one side domain constitutes curve, and the interval of each curve is obtained by Domain functions, and then
Obtain the metric length and step 1 of each curve) discriminant parameter be compared, it is small if there is two side curve metric lengths
In set parameter, then it is judged as that metal plate is stitched, filters this out.
Compared with prior art, the principle of this programme and have the beneficial effect that accordingly：
1. the method control area plan triggered using software automatically generates the base of each sheet metal component in production in enormous quantities
Plinth face domain, and the interference surface domain of the seam between the sheet metal component being mixed into is filtered, and face field parameter will be generated with output port
Change output, realize serialization and automation.
2. generating the base surface domain of high-volume sheet metal component modeling using computer, and output is parameterized, continued after realizing
The parametrization input of mould module, effectively save human resources are simple to operate, using reliable, reduce workman's working strength, break
The constraint of production time, effectively improves speed of production.
Brief description of the drawings
Fig. 1 is flow chart of the invention.
Embodiment
With reference to specific embodiment, the invention will be further described：
Referring to shown in accompanying drawing 1, the face domain generation method produced based on high-volume sheet metal component described in the present embodiment, including with
Lower step：
(1) large stretch of sheet metal component area arrangement plan construction：
By CAD layout softwares, the arrangement of each sheet metal component in bulk zone is sketched out using basic patterning unit order
Position and residing planar graph, and be saved in computer disk；
(2) cad file is transferred：
Cad file is opened using rhinoceros software, the sheet metal component plane distribution schematic diagram being made up of a large amount of line segments is obtained；
(3) parameter of curve of pickup outermost is input to face domain generation program, automatically generates comprising whole sheet metal component arrangements
Area surface domain；
(4) whole curves of frame choosing composition plan are input in the production routine of face domain, and curve both sides are automatically prolonged
One threshold value less than slit width degree, the area surface domain that step (3) is generated cuts into the face domain comprising multiple planes；
(5) the face domain for generating routine call rhinoceros software by face domain generates class function, and the plane that step (4) is generated is inclined
Move the multiple unit plane domains of extrusion generation；
(6) the ultimate range discriminant parameter stitched in the input port setting of generation face domain program, by face domain, generation program is held
Screen in whole face domains that row for circulations are generated to step (5)；
(7) border obtained by program per one side domain constitutes curve, and the interval of each curve is obtained by Domain functions, and then
Obtain the metric length and step 1 of each curve) discriminant parameter be compared, it is small if there is two side curve metric lengths
In set parameter, then it is judged as that metal plate is stitched, filters this out；
(8) the face domain by generating and by filtering is exported with an output port.
The method control area plan that the present embodiment is triggered using software automatically generates each metal plate in production in enormous quantities
The base surface domain of part, and the interference surface domain of the seam between the sheet metal component being mixed into is filtered, and face will be generated with output port
Field parameterization is exported, and realizes serialization and automation.The base surface domain of high-volume sheet metal component modeling is generated using computer, and is joined
Numberization is exported, and realizes the parametrization input of follow-up modeling module, and effectively save human resources are simple to operate, using reliable, subtract
Few workman's working strength, has broken the constraint of production time, has effectively improved speed of production.
Examples of implementation described above are only the preferred embodiments of the invention, and the implementation model of the present invention is not limited with this
Enclose, therefore the change that all shape, principles according to the present invention are made, it all should cover within the scope of the present invention.
Claims (3)
1. the face domain generation method produced based on high-volume sheet metal component, it is characterised in that：Comprise the following steps：
(1) large stretch of sheet metal component area arrangement plan construction：
By CAD layout softwares, the arrangement position of each sheet metal component in bulk zone is sketched out using basic patterning unit order
With residing planar graph, and it is saved in computer disk；
(2) cad file is transferred：
Cad file is opened using rhinoceros software, the sheet metal component plane distribution schematic diagram being made up of a large amount of line segments is obtained；
(3) each face domain is generated：
The Grasshopper frameworks of rhinoceros software are opened, call face domain to generate program, by selecting signal picture frame, and produce each
Face domain；
(4) the face domain of generation is filtered；
(5) output has been generated and by the face domain of filtering.
2. the face domain generation method according to claim 1 produced based on high-volume sheet metal component, it is characterised in that：The step
Suddenly (3) generate comprising the following steps that for each face domain：
(parameter of curve of 1 pickup outermost is input to face domain generation program, automatically generates the region for including whole sheet metal component arrangements
Face domain；
(whole curves that the choosing of 2 frames constitutes plan are input in the production routine of face domain, and it is one small that curve both sides are automatically prolonged
In the threshold value of slit width degree, by step, (the 1 area surface domain generated cuts into the face domain comprising multiple planes；
(the 3 face domains for generating routine call rhinoceros software by face domain generate class function, and by step, (2 planar offsets generated are extruded
Generate multiple unit plane domains.
3. the face domain generation method according to claim 1 produced based on high-volume sheet metal component, it is characterised in that：The step
Suddenly (4) are comprised the following steps that：
1) the ultimate range discriminant parameter stitched in the input port setting of generation face domain program, by face domain, generation program performs for
The whole face domains for generating step (3) are circulated to screen；
2) border obtained by program per one side domain constitutes curve, the interval of each curve is obtained by Domain functions, and then obtain
The metric length and step 1 of each curve) discriminant parameter be compared, if there is two side curve metric lengths be less than institute
Arrange parameter, then be judged as that metal plate is stitched, filter this out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710208326.7A CN107180121B (en) | 2017-03-31 | 2017-03-31 | Surface area generation method based on mass sheet metal part production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710208326.7A CN107180121B (en) | 2017-03-31 | 2017-03-31 | Surface area generation method based on mass sheet metal part production |
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| Publication Number | Publication Date |
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| CN107180121A true CN107180121A (en) | 2017-09-19 |
| CN107180121B CN107180121B (en) | 2021-03-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108121868A (en) * | 2017-12-20 | 2018-06-05 | 韶关学院 | A kind of space face domain generation method and system based on KDtree for sheet metal component modeling |
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2017
- 2017-03-31 CN CN201710208326.7A patent/CN107180121B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108121868A (en) * | 2017-12-20 | 2018-06-05 | 韶关学院 | A kind of space face domain generation method and system based on KDtree for sheet metal component modeling |
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| CN107180121B (en) | 2021-03-30 |
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