CN107463755B - One kind parameterizes fast modeling method based on high-volume sheet metal component - Google Patents
One kind parameterizes fast modeling method based on high-volume sheet metal component Download PDFInfo
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Abstract
One kind parameterizes fast modeling method based on high-volume sheet metal component, comprises the following steps：The bottom surface of corresponding sheet metal component is drawn according to floor plan；With the solid selection battery of the system, to bottom surface, the side to be squeezed out makes choice, and inputs relevant parameter, generates naive model；The side to be squeezed out is selected on basic model, and inputs relevant parameter, generates model two, the step of then carrying out corner cut curved surface union operation, generate model three, repeat and combine above-mentioned generation model two and model three, generates realistic model；For such similar large batch of sheet metal component of shape, using similary step, by changing sheet metal component bottom shape size, squeezing out side and input parameter, that is, another piece of sheet metal component model is generated.The effectively save human resources of the present invention, it is easy to operate, worker's working strength is reduced, has broken the constraint of production time, has effectively improved modeling production efficiency.
Description
Technical field
The present invention relates to computer aided design and manufacture fields more particularly to a kind of high-volume sheet metal component that is based on to parameterize
Fast modeling method.
Background technology
In manufacturing industry, workpiece modeling is that high-volume sheet metal component produces necessary manufacture link, the quality and speed of modeling
Often determine the efficiency and benefit of production.Traditional workpiece modeling mainly manually utilizes computer software (CAD or rhinoceros
Deng) manually then stretched, scanned and built again using computer software elder generation construction plan view and etc..However, it manually builds
Mould is present with heavy workload, and artificial modeling easily error one by one manually when being produced in enormous quantities, less efficient, and
It can cause workload redundancy.
Existing sheet metal component production process be mostly by manually drawing one by one, then one by one produce face domain, extrusion,
Sweeping, trimming etc. finally obtain the final structure of modeling.May be gone back when to single or small lot Modeling in Product substantially can be full
Sufficient demand, but in actual life during the sheet metal component mass production of building materials finishing, the shape of many sheet metal components is that Datong District is small
It is different, for current rhinoceros software traditional modeling method, as long as model is different there are one size, sheet metal component all from the beginning arrive
As soon as tail builds time model again, this process seems very cumbersome, and manually constructs and can not be realized pair during sheet metal component one by one
The management of built high-volume model and realization parametrization, such method is very inconvenient really, affects production efficiency.
The content of the invention
It is an object of the invention to solve the above problems to propose that a kind of high-volume sheet metal component that is based on parameterizes fast run-up
Mould method, effectively save human resources are easy to operate, reduce worker's working strength, broken the constraint of production time, effectively carried
Height modeling production efficiency.
In order to reach this purpose, the present invention uses following technical scheme：
One kind parameterizes fast modeling method based on high-volume sheet metal component, comprises the following steps：
A. bottom surface is drawn, the plan view bottom surface of corresponding sheet metal component is drawn according to floor plan；
B. naive model is established, the side to be squeezed out makes choice to bottom surface with the solid selection battery of the system, and defeated
Enter relevant parameter, generate naive model；
C. realistic model is established, the side to be squeezed out is selected on basic model, and inputs relevant parameter, generates model two,
The step of then carrying out corner cut curved surface union operation, generating model three, repeat and combine above-mentioned generation model two and model three, it is raw
Into realistic model；
D. rapid modeling for such similar large batch of sheet metal component of shape, using similary step, changes metal plate
Part bottom shape size, other data remain unchanged, that is, generate another piece of sheet metal component model or keep bottom surface identical, replace and squeeze
Go out side and change input parameter, can also generate another piece of sheet metal component model.
Preferably, bottom surface is drawn described in step A to include the following steps：
Step 1: first, according to sheet metal component, obtaining corresponding sheet metal component design sketch, judged by the sheet metal component design sketch
Go out the bottom surface for needing that the bottom surface drawn is any polygon；
Step 2: after the type of the selected above-mentioned bottom surface that need to be drawn, wire frame is formed by simple straight line, circular arc etc. and is drawn
The bottom surface, then the plane of these bottom surface generation reality being made of line.
Preferably, basic model is established described in step B to include the following steps：
Step a, the Grasshopper frames of rhinoceros software are opened, the Brep batteries carried with rhinoceros software are to rhinoceros mould
The bottom surface that type space is drawn makes choice；
Step b, the PickPCP batteries made again by the system are picked up the side of selected bottom surface, that is, select
Above-mentioned relevant parameter is inputed to the ginseng that the system done by the corresponding height in side and input item and angle parameter that bottom surface to be squeezed out
Number electrochemical cell plug-in unit CurveExtrusion, the naive model of sheet metal component will generate accordingly to be come.
Preferably, realistic model is established described in step C to include the following steps：
Step c, on the basis of the naive model established in step B, then the naive model that it is generated is done and is further built
Mould, first using the naive model that battery plug-in unit CurveExtrusion is generated as input object, choose the side on its inclined-plane into
Row squeezes out, and inputs corresponding height and angle parameter, and above-mentioned relevant parameter is inputted battery plug-in unit CurveExtrusion,
Generate model two；
Step d, and then again the battery Surface_Intersection of the system is used to the skin of the step c models two generated
Facial plane is sought common ground and merges to obtain model three；
Step e, repeat step c and d and combined accordingly, you can the variously-shaped different model of sheet metal component is carried out
Modeling.
Preferably, the height described in step b is extrusion or tensile elongation, and the angle is extrusion face compared with extrusion
The angle of inclination on side.
Preferably, every of each model in the rhinoceros software, which squeezes out side, specific number.
Preferably, a friendship can be had when PickPCP is battery-operated described in step b with the spatial model of rhinoceros software
Mutual process；The input terminal of the PickPCP batteries is bottom surface, and there are two output terminals：One squeezes out side for index for exporting
Number, another extrusion side chosen for Geometry for output.
Preferably, the PickPCP batteries are respectively Point, Curve and Surface there are three pickup button；It is described
Piont buttons are used for pickup point, and are closed；The Curve buttons are used for pickup leads, and in opening；Institute
Surface buttons are stated for picking up face, and are closed.
Preferably, by setting a plurality of extrusion side and inputting multigroup relevant parameter, multiple extrusion faces are exported.
Preferably, rapid modeling further includes following steps described in step D：
For the similar large batch of sheet metal component of shape, the extrusion that bottom shape is in different size, chooses is existed simultaneously
Side is different and relevant parameter it is also different in the case of, replace bottom surface first, quickly obtain corresponding naive model, then
It replaces and squeezes out side and the corresponding relevant parameter of input item, using similary step, generate sheet metal component model.
The technique effect of the present invention：The production system is an intelligentized production system, when high-volume models, is manually grasped
During work may the error of a certain step cause entire model nonconforming, need to only change corresponding parameter at this time, lead to
It crosses and replaces bottom surface or the relevant parameter of replacement extrusion side and change input, using identical other steps, just quick can obtain
To new sheet metal component model, effectively save human resources are easy to operate, using reliable, reduce worker's working strength, broken life
The constraint of time is produced, effectively improves production efficiency.
Description of the drawings
Fig. 1 is the flow chart of the present invention；
Fig. 2 is the schematic diagram of the naive model of one embodiment of the present of invention；
Fig. 3 is the schematic diagram of the model two of one embodiment of the present of invention；
Fig. 4 is the schematic diagram of the model three of one embodiment of the present of invention；
Fig. 5 is the schematic diagram of the realistic model of one embodiment of the present of invention；
Fig. 6 is the model comparison diagram one of one embodiment of the present of invention；
Fig. 7 is the model comparison diagram two of one embodiment of the present of invention.
Specific embodiment
The technical solution further illustrated the present invention below in conjunction with the accompanying drawings and by specific embodiment mode.
As shown in Fig. 1-Fig. 7, one kind parameterizes fast modeling method based on high-volume sheet metal component, comprises the following steps：
A. bottom surface is drawn, the plan view bottom surface of corresponding sheet metal component is drawn according to floor plan；
B. naive model is established, the side to be squeezed out makes choice to bottom surface with the solid selection battery of the system, and defeated
Enter relevant parameter, generate naive model；
C. realistic model is established, the side to be squeezed out is selected on basic model, and inputs relevant parameter, generates model two,
The step of then carrying out corner cut curved surface union operation, generating model three, repeat and combine above-mentioned generation model two and model three, it is raw
Into realistic model；
D. rapid modeling for such similar large batch of sheet metal component of shape, using similary step, changes metal plate
Part bottom shape size, other data remain unchanged, that is, generate another piece of sheet metal component model or keep bottom surface identical, replace and squeeze
Go out side and change input parameter, can also generate another piece of sheet metal component model.
Plan view bottom surface is simply drawn out according to sheet metal component design sketch first, passes through the solid carried in rhinoceros software
The selection battery side to be squeezed out to bottom surface makes choice, and after selecting the good extrusion side, inputs the relevant parameter on the corresponding extrusion side,
The naive model of sheet metal component is generated, then naive model will further be modeled again using identical step, choose simple mould
In type while as squeezing out, and input corresponding relevant parameter, form model two, corner cut curved surface conjunction then is carried out to model two
And the step of operating, forming model three, above-mentioned generation model two and model three are then repeated according to the selection of sheet metal component type, and it is right
Above-mentioned steps are integrated, so as to generate the realistic model of such sheet metal component.The system is for the bottom surface (example of same polygon
If quadrangle is a kind of, pentagon is another), it is assumed that the step of it is modeled is the same, and simply the shape of bottom surface is different
, at this moment just only need to change the shape of bottom surface, then corresponding sheet metal component will be quickly generated；If bottom shape is big
It is small the same, and the relevant parameter of the extrusions side selected perhaps input is different, need only to replace it is corresponding squeeze out side or
Change the relevant parameter of input, then corresponding sheet metal component can be also quickly generated, as long as avoiding model different there are one size
Alternatively, sheet metal component all the phenomenon that building a model again from the beginning to the end, while also avoid manually modeling and artificially build one by one manually
The phenomenon that mould easily malfunctions, the production system are an intelligentized production systems, when high-volume models, during manual operation
May the error of a certain step cause entire model nonconforming, corresponding parameter need to be only changed at this time, by replacing bottom
The relevant parameter for squeezing out side and change input is replaced in face, using identical other steps, just can be quickly obtained new metal plate
Golden part model, effectively save human resources are easy to operate, using reliable, reduce worker's working strength, broken the production time
Constraint, effectively improves production efficiency.
Further description, as shown in Fig. 1-Fig. 7, drafting bottom surface described in step A includes the following steps：
Step 1: first, according to sheet metal component, obtaining corresponding sheet metal component design sketch, judged by the sheet metal component design sketch
Go out the bottom surface for needing that the bottom surface drawn is any polygon；
Step 2: after the type of the selected above-mentioned bottom surface that need to be drawn, wire frame is formed by simple straight line, circular arc etc. and is drawn
The bottom surface, then the plane of these bottom surface generation reality being made of line.
When drawing the model of a certain sheet metal component, it is necessary first to the design sketch of the sheet metal component is observed, so as to judge to need
The bottom surface to be drawn is the bottom surface of any polygon, it is assumed that such sheet metal component bottom surface is pentagonal, is imitated according to the sheet metal component
Fruit is schemed, and forming wire frame with simple straight line or circular arc draws out the pentagon bottom surface, then these bottom surfaces being made of line are given birth to
Into actual plane, and the bottom surface of these planes is exactly the basis place for forming model, similar large batch of for shape
Such sheet metal component, if the model of another sheet metal component of needs generation, and the difference of this sheet metal component only only has bottom surface
Shape size is different, at this moment only needs to repeat other steps, and its bottom shape size is modified, other data are kept not
Become, just can be quickly generated another sheet metal component model, reduce and largely repeat cumbersome manual operation, improve production effect
Rate.
Further description is established basic model as Figure 1-Figure 2, described in step B and is included the following steps：
Step a, the Grasshopper frames of rhinoceros software are opened, the Brep batteries carried with rhinoceros software are to rhinoceros mould
The bottom surface that type space is drawn makes choice；
Step b, the PickPCP batteries made again by the system are picked up the side of selected bottom surface, that is, select
Above-mentioned relevant parameter is inputed to the ginseng that the system done by the corresponding height in side and input item and angle parameter that bottom surface to be squeezed out
Number electrochemical cell plug-in unit CurveExtrusion, the naive model of sheet metal component will generate accordingly to be come.
The Grasshopper frames of rhinoceros software are first turned on, the Brep batteries then carried with rhinoceros software are to rhinoceros
The bottom surface that the model space is drawn makes choice, and after the completion of selection, the PickPCP batteries made by the system are to selected bottom
The side in face is picked up, and is first turned on PickPCP battery frames, clicks on the interactive button in PickPCP battery frames, interface is certainly
It is dynamic to jump to the rhinoceros model space, the side to be squeezed out then is selected, several is selected, several data will be generated, choose extrusion
Side after, reselection squeezes out the corresponding height in side and angle parameter, and above-mentioned relevant parameter is input to the parameter that the system done
Electrochemical cell plug-in unit CurveExtrusion, you can generate the naive model of sheet metal component, for shape it is similar it is large batch of should
Class sheet metal component, if the model of another sheet metal component of needs generation, and the bottom shape size of this sheet metal component is identical, different
Point for selection the relevant parameter for squeezing out side or input, it is only necessary to repeat correlation step, and replace and squeeze out side or change is defeated
The relevant parameter entered, bottom surface remain unchanged, with regard to another sheet metal component model can be quickly generated, reduce largely repeat it is cumbersome
Manual operation improves production efficiency.
Further description, as shown in Fig. 1-Fig. 7, described in step C establishing realistic model includes the following steps：
Step c, on the basis of the naive model established in step B, then the naive model that it is generated is done and is further built
Mould, first using the naive model that battery plug-in unit CurveExtrusion is generated as input object, choose the side on its inclined-plane into
Row squeezes out, and inputs corresponding height and angle parameter, and above-mentioned relevant parameter is inputted battery plug-in unit CurveExtrusion,
Generate model two；
Step d, and then again the battery Surface_Intersection of the system is used to the skin of the step c models two generated
Facial plane is sought common ground and merges to obtain model three；
Step e, repeat step c and d and combined accordingly, you can the variously-shaped different model of sheet metal component is carried out
Modeling.
The naive model established to step B further models, first at this time by battery plug-in unit CurveExtrusion institutes
The naive model of generation then places into a PickPCP battery frame, passes through the PickPCP battery frames as input object
Frame selects to need the side on the inclined-plane squeezed out in the naive model, and selects to need the height and angle on the correspondence extrusion side inputted
Parameter, and above-mentioned relevant parameter is inputted battery plug-in unit CurveExtrusion, so as to generate model two, open battery
Surface_Intersection, by the battery Surface_Intersection of the system to the surface plane of model two into
Row, which is asked to stir base and merge, obtains model three, last according to the type and shape of wanting sheet metal component, and repeating the above steps c and d and carries out
It is corresponding to integrate, establish corresponding sheet metal component model；The production system is an intelligentized production system, and high-volume models
When, due to substantial amounts of sheet metal component, its planform is similar, this is the naive model for needing to establish a sheet metal component, as long as our handles
Its battery all copies to change corresponding parameter again, just can be quickly obtained new sheet metal component model, improves production effect
Rate.
Further description, as shown in Fig. 1-Fig. 7, height described in step b is described to squeeze out or tensile elongation
Angle is extrusion face compared with the angle of inclination for squeezing out side.
It by the shape of sheet metal component, selectes after squeezing out side, the extrusion face that will be generated after selection is compared with extrusion side
Angle of inclination, the length that the subsequent reselection extrusion face will extend or squeeze out, by inputting the height and angle parameter
Corresponding model can be quickly generated, sheet metal component different for shape size but identical bottom surface, this is only to need to change input
Relevant parameter, you can quickly generate corresponding sheet metal component model, without because slight distinctive points, just modeling again, save
Working time improves work efficiency.
Further description, as shown in Fig. 1-Fig. 7, every extrusion side of each model in the rhinoceros software has
Specific number.
Each side of bottom surface and model by rhinoceros Software on Drawing, the bottom surface and model has pair per one side
The specific number answered, for example be 0,1,2,3 etc., the person of being conveniently operated directly selects out the side of needs extrusion so that operation is more simple
Just, operation interface seems to become apparent from understanding.
Further description, can be with rhinoceros when PickPCP is battery-operated described in step b as shown in Fig. 1-Fig. 7
The spatial model of software has interaction；The input terminal of the PickPCP batteries is bottom surface, and there are two output terminals：One
For index for exporting the number on extrusion side, another is used to export the extrusion side chosen for Geometry.
PickPCP in the step b can have a interacted with the spatial model of rhinoceros software when battery-operated
Journey, by using PickPCP batteries, operator only needs to click on the spatial model in rhinoceros software, selects the side to be squeezed out, choosing
After selecting, PickPCP batteries will export the extrusion while number and the extrusion while, click on several sides, several groups will be exported
Data for the similar sheet metal component of shape size, need replacing a certain item and squeeze out side, you can intuitively find out needs at this time
Which block PickPCP battery altering side is squeezed out at so that operation is more easy, improves work efficiency.
Further description, as shown in Fig. 1-Fig. 7, the PickPCP batteries are respectively there are three pickup button
Point, Curve and Surface；The Piont buttons are used for pickup point, and are closed；The Curve buttons are used for
Pickup leads, and in opening；The Surface buttons are closed for picking up face.
The PickPCP batteries to show respectively the point to be picked up, line knead dough there are three button is picked up, and is only needed in the system
Select to squeeze out side, therefore only open the Curve buttons, Point the and Surface buttons all in closed state, this
During the sample reselection side to be squeezed out, when accidentally clicking point or the face on the spatial model of rhinoceros software, the PickPCP electricity
Just there is reaction in pond when will not generate the side of data, only click model, reduces the time that needs are changed due to carelessness, further
Improve work efficiency.
Further description, it is defeated by setting a plurality of extrusion side and inputting multigroup relevant parameter as shown in Fig. 1-Fig. 7
Go out multiple extrusion faces.
The bottom surface of sheet metal component is all polygon, and the sheet metal component model of required generation is also multiple faces, therefore is passed through
A plurality of extrusion side is set and inputs multigroup relevant parameter, exports multiple extrusion faces, a step can generate multiple faces, and raising is built
The efficiency of mould.
Further description, as shown in Fig. 1-Fig. 7, rapid modeling further includes following steps described in step D：
For the similar large batch of sheet metal component of shape, the extrusion that bottom shape is in different size, chooses is existed simultaneously
Side is different and relevant parameter it is also different in the case of, replace bottom surface first, quickly obtain corresponding naive model, then
It replaces and squeezes out side and the corresponding relevant parameter of input item, using similary step, generate sheet metal component model.
When high-volume models, always there are such sheet metal component, such described sheet metal component is with the sheet metal component model built up
Exist simultaneously bottom shape is in different size, choose extrusion side is different and relevant parameter also different problem, at this time
Firstly the need of bottom surface is replaced, relevant parameter corresponding with the sheet metal component is inputted, naive model is generated, then repeats and combine institute
The step of model two and model three are generated in step C is stated, actual sheet metal component model is generated, shape can be directed to by this method
The similar sheet metal component high-volume of shape size models, as long as its battery is all copied to replace bottom surface and corresponding extrusion
Corresponding parameter is changed on side again, just can be quickly obtained new sheet metal component model, compared to current traditional modeling pattern, is effectively saved
About human resources, it is easy to operate, using reliable, worker's working strength is reduced, has broken the constraint of production time, has effectively improved life
Produce speed.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention cannot be construed in any way.Based on explanation herein, the technology of this field
Personnel would not require any inventive effort the other specific embodiments that can associate the present invention, these modes are fallen within
Within protection scope of the present invention.
Claims (6)
1. one kind parameterizes fast modeling method based on high-volume sheet metal component, it is characterised in that：Comprise the following steps：
A. bottom surface is drawn, the plan view bottom surface of corresponding sheet metal component is drawn according to floor plan；
B. naive model is established, the side to be squeezed out makes choice to bottom surface with the solid selection battery of the system, and the input phase
Related parameter generates naive model；
C. realistic model is established, the side to be squeezed out is selected on basic model, and inputs relevant parameter, generates model two, then
The step of carrying out corner cut curved surface union operation, generating model three, repeat and combine above-mentioned generation model two and model three, generation are real
Border model；
D. rapid modeling for the similar large batch of sheet metal component of shape, uses similary step, change sheet metal component bottom surface shape
Shape size, other data remain unchanged, that is, generate another piece of sheet metal component model or keep bottom surface identical, replace and squeeze out side and more
Change input parameter, can also generate another piece of sheet metal component model；
Realistic model is established described in step C to include the following steps：
Step c, on the basis of the naive model established in step B, then further modeling is done to the naive model that it is generated, it is first
First using the naive model that battery plug-in unit CurveExtrusion is generated as input object, the side for choosing its inclined-plane is squeezed
Go out, and input corresponding height and angle parameter, and relevant parameter is inputted battery plug-in unit CurveExtrusion, generate model
Two；
Step d, and then again the surface of the step c models two generated is put down with the battery Surface_Intersection of the system
Face is sought common ground and merges to obtain model three；
Step e, repeat step c and d and combined accordingly, you can the variously-shaped different model of sheet metal component is built
Mould；
Naive model is established described in step B to include the following steps：
Step a, the Grasshopper frames of rhinoceros software are opened, the Brep batteries carried with rhinoceros software are to rhinoceros Model Space
Between the bottom surface drawn make choice；
Step b, the PickPCP batteries made again by the system are picked up the side of selected bottom surface, that is, select bottom surface
Relevant parameter is inputed to the parameter electrochemical cell that the system done by the corresponding height in side and input item and angle parameter to be squeezed out
Plug-in unit CurveExtrusion, the naive model of sheet metal component will generate accordingly to be come；
Interaction can be had when PickPCP is battery-operated described in step b with the spatial model of rhinoceros software；It is described
The input terminal of PickPCP batteries is bottom surface, and there are two output terminals：One number for squeezing out side for output for index, another
The extrusion side chosen for Geometry for output；
The PickPCP batteries are respectively Point, Curve and Surface there are three pickup button；The Point buttons are used
In pickup point, and it is closed；The Curve buttons are used for pickup leads, and in opening；The Surface is pressed
Button is closed for picking up face.
It is 2. according to claim 1 a kind of based on high-volume sheet metal component parametrization fast modeling method, it is characterised in that：Step
Bottom surface is drawn described in rapid A to include the following steps：
Step 1: first, according to sheet metal component, obtaining corresponding sheet metal component design sketch, judge to need by the sheet metal component design sketch
The bottom surface of drafting is the bottom surface of any polygon；
Step 2: after the type of the selected above-mentioned bottom surface that need to be drawn, wire frame is formed by straight line, circular arc and draws the bottom surface, then
The plane of these bottom surface generation reality being made of line.
It is 3. according to claim 1 a kind of based on high-volume sheet metal component parametrization fast modeling method, it is characterised in that：Step
Height described in rapid b is extrusion or tensile elongation, and the angle is extrusion face compared with the angle of inclination for squeezing out side.
It is 4. according to claim 1 a kind of based on high-volume sheet metal component parametrization fast modeling method, it is characterised in that：Institute
There is specific number on every extrusion side for stating each model in rhinoceros software.
It is 5. according to claim 1 a kind of based on high-volume sheet metal component parametrization fast modeling method, it is characterised in that：It is logical
It crosses and a plurality of extrusion side is set and inputs multigroup relevant parameter, export multiple extrusion faces.
It is 6. according to claim 1 a kind of based on high-volume sheet metal component parametrization fast modeling method, it is characterised in that：Step
Rapid modeling further includes following steps described in rapid D：
For the similar large batch of sheet metal component of shape, bottom shape is in different size, chooses extrusion side is existed simultaneously not
In the case of the same and relevant parameter is also different, bottom surface is replaced first, corresponding naive model is quickly obtained, then replaces
Side and the corresponding relevant parameter of input item are squeezed out, using similary step, generates sheet metal component model.
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