CN111737783B - Casting pouring system parameterized forming system and method based on creo software - Google Patents
Casting pouring system parameterized forming system and method based on creo software Download PDFInfo
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Abstract
The invention discloses a casting pouring system parameterized forming system and a method thereof based on creo software, wherein the system comprises the following components: the device comprises a three-dimensional pouring channel rapid generation module, a rapid assembly module and a part pretreatment module; the three-dimensional runner rapid generation module comprises: a vertical barrel parameterization design unit, a horizontal pouring gate parameterization design unit, a vertical pouring gate parameterization design unit and a riser parameterization design unit; the quick assembly module includes: a quick assembly unit for clicking the surface and a quick assembly unit for clicking the element; the part pretreatment module comprises: an automatic dyeing processing unit, a unit self-adaptive processing unit and an accuracy self-adaptive processing unit. The invention can realize the parametric molding design of the casting pouring system, thereby shortening the design time of the pouring system, avoiding repeated and complicated modeling and improving the design efficiency.
Description
Technical Field
The invention relates to a casting pouring system parameterized forming system and a casting pouring system parameterized forming method based on creo software, and belongs to the field of design and manufacture of aerospace products.
Background
At present, the space casting department usually uses Creo software to manually draw a two-dimensional sketch and perform a series of three-dimensional modeling operations such as stretching to complete modeling of a pouring system, and after the modeling is completed, pouring system parts and castings are assembled so as to facilitate subsequent operations such as simulation. This approach often requires the face of repeated modeling problems and some casting system part modeling processes are cumbersome, requiring significant effort from the designer to use for repeated and complex modeling tasks. Because the design period of the space product is longer, repeated modeling occupies a great deal of time of designers, greatly influences the working efficiency of the designers, and directly influences the design period of the product.
Disclosure of Invention
The invention provides a parameterized molding system and a parameterized molding method for a casting pouring system based on creo software for overcoming the defects of the prior art, so that parameterized molding design of the casting pouring system can be realized, the design time of the pouring system is shortened, repeated and complicated modeling is avoided, and the design efficiency is improved.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention relates to a parameterized molding system based on a casting pouring system, which is characterized by being applied to a creo software platform and comprising the following components: the device comprises a three-dimensional pouring channel rapid generation module, a rapid assembly module and a part pretreatment module;
the three-dimensional pouring channel rapid generation module comprises: a vertical barrel parameterization design unit, a cross runner parameterization design subunit, a sprue parameterization design unit and a riser parameterization design unit;
the quick assembly module includes: a quick assembly unit for clicking the surface and a quick assembly unit for clicking the element;
the quick assembly unit of the selected element is divided into a quick assembly unit of the selected element based on surface-to-surface matching and a quick assembly unit of the selected element based on coordinate system matching;
the part pretreatment module comprises: an automatic dyeing processing unit, a unit self-adaptive processing unit and an accuracy self-adaptive processing unit;
The vertical cylinder parameterization design unit firstly carries out three-dimensional modeling on a given vertical cylinder part on a Creo software platform to obtain a vertical cylinder part model; then the vertical cylinder part model is used as a male parent part, a family table of the corresponding male parent part is established by utilizing the 'family table' function on the Creo software platform, and the family table is used for storing a group of design parameters for controlling the shape and the size of the vertical cylinder part model; then adding a group of parameters for the vertical cylinder part model by using a parameter function on the Creo software platform, and establishing a function connection between the added group of parameters and the size of the vertical cylinder part model by using a relation function on the Creo software platform; programming corresponding functions for the design parameters of the vertical cylinder part model, so as to obtain a parameterized program corresponding to a retrieval function and a modification function of the design parameters and a function of generating a new vertical cylinder part model according to new parameter values; finally, breaking and generating an attaching relation between the new vertical cylinder part model and the male parent part of the new vertical cylinder part model in the parameterization program, so that the new vertical cylinder part model becomes an independent vertical cylinder part;
the cross gate parameterization design unit firstly carries out three-dimensional modeling on a given cross gate part on a Creo software platform to obtain a cross gate part model; then the cross gate part model is used as a male parent part, a family table of the corresponding male parent part is established by utilizing a family table function on a Creo software platform, and the family table is used for storing a group of design parameters for controlling the shape and the size of the cross gate part model; then adding a group of parameters for the cross gate part model by using a parameter function on the Creo software platform, and establishing a function connection between the added group of parameters and the size of the cross gate part model by using a relation function on the Creo software platform; programming corresponding functions for the design parameters of the cross gate part model, so as to obtain a parameterized program corresponding to a retrieval function and a modification function of the design parameters and a function of generating a new cross gate part model according to new parameter values; finally, breaking and generating an attaching relation between a new cross gate part model and a parent part of the new cross gate part model in the parameterization program, so that the new cross gate part model becomes an independent cross gate part;
The sprue parameterized design unit firstly utilizes Creo software to complete three-dimensional modeling of a given sprue part, and a sprue part model is obtained; then the straight pouring channel part model is used as a male parent part, a family table of the corresponding male parent part is established by utilizing the 'family table' function on the Creo software platform, and the family table is used for storing a group of design parameters for controlling the shape and the size of the straight pouring channel part model; then adding a group of parameters for the sprue part model by using a parameter function on the Creo software platform, and establishing a function connection between the added group of parameters and the size of the sprue part model by using a relation function on the Creo software platform; programming corresponding functions for the design parameters of the sprue part model, so as to obtain a parameterized program corresponding to a retrieval function and a modification function of the design parameters and a function of generating a new sprue part model according to new parameter values; finally, breaking and generating an attachment relation between a new sprue part model and a parent part thereof in a corresponding parameterization program, so that the new sprue part model becomes an independent sprue part;
The riser parameterization design unit firstly utilizes Creo software to complete three-dimensional modeling of a given riser part, and a riser part model is obtained; then the riser part model is used as a male parent part, a family table of the corresponding male parent part is established by utilizing a 'family table' function on a Creo software platform, and the family table is used for storing a group of design parameters for controlling the shape and the size of the riser part model; then adding a group of parameters for the riser part model by using a parameter function on the Creo software platform, and establishing a function connection between the added group of parameters and the size of the riser part model by using a relation function on the Creo software platform; programming corresponding functions for the design parameters of the riser part model, so as to obtain a parameterized program corresponding to a retrieval function and a modification function of the design parameters and a function of generating a new riser part model according to new parameter values; finally, breaking and generating the attachment relation between the new riser part model and the parent part thereof in the corresponding parameterization program, so that the new riser part model becomes an independent riser part;
forming a new part model by the new vertical cylinder part model, the new cross gate part model, the new sprue part model and the new riser part model;
The quick assembly unit for the selected surfaces firstly places a new vertical cylinder part model on a Creo software background to obtain positioning reference information on the new vertical cylinder part model and store the positioning reference information in an array, and then selects three surfaces as positioning reference information in an assembly corresponding to the new vertical cylinder part model and store the positioning reference information in the array by utilizing a selection environment of a function interface entering surface on a Creo software platform; then, memory space is allocated to a data structure for representing assembly constraint of face-to-face matching, and finally constraint types and constraint references between the new vertical cylinder part model and corresponding components are set, so that assembly between the new vertical cylinder part model and the corresponding components is completed;
the quick assembly unit of the selected element based on surface matching firstly places the element to be assembled in the background, the element with the assembly comprises a new cross runner part model and a new sprue part model, three assembly surface information on the element to be assembled is obtained and stored in an array, then a function interface on a Creo software platform is utilized to enter a selection environment of the element, one element in a corresponding assembly is selected, and therefore three assembly surface information on the element is obtained and placed in the array; then, memory space is allocated to a data structure for representing assembly constraint of face-to-face matching, and finally constraint types and constraint references between the element to be assembled and the corresponding components are set, so that assembly between the element to be assembled and the corresponding components is completed;
The quick assembly unit of the selected component based on the coordinate system is characterized in that a new riser part model is firstly placed in a background to obtain coordinate system information of the component to be assembled and store the coordinate system information in an array, then a function interface on a Creo software platform is utilized to enter a selection environment of the component, one component in a corresponding assembly component is selected, so that the coordinate system information on the component is obtained and placed in the array, then a memory space is allocated to a data structure for representing assembly constraint of the coordinate system and the coordinate system, finally constraint types and constraint references between the new riser part model and corresponding components are set, and assembly between the new riser part model and the corresponding components is completed;
the automatic dyeing processing unit firstly obtains each handle of the new part model, and obtains the surface attribute of the corresponding part model through each handle of the new part model, so that the color attribute in the surface attribute of the part model is set by using a function;
the unit self-adaptive processing unit firstly acquires a casting handle arranged in an assembly file, and acquires a unit of a casting through the casting handle, so that the unit of an element in the automatic dyeing processing unit is set according to the unit of the casting, and the unit of the element is consistent with the unit of the casting;
The precision self-adaptive processing unit firstly acquires a casting handle arranged in the assembly file, and acquires the precision of the casting through the casting handle, so that the precision of the element in the automatic dyeing processing unit is set according to the precision of the casting, and the precision of the element is consistent with the precision of the casting.
The parameterized forming method based on the casting pouring system is characterized by being applied to a creo software platform and performed according to the following steps;
step 1, carrying out three-dimensional modeling on a given part on a Creo software platform to obtain a part model, wherein the step comprises the following steps: a vertical cylinder part model, a horizontal pouring gate part model, a vertical pouring gate part model and a riser part model, which are respectively used as male parent parts;
step 2, finishing the setting of the male parent part:
step 2.1, establishing a family table of corresponding male parent parts by utilizing a family table function on a Creo software platform, wherein the family table is used for storing a group of design parameters for controlling the shape and the size of each male parent part in the part model;
step 2.2, adding a group of self parameters for each father part in the part model by using a parameter function on the Creo software platform, and then establishing a function connection between the added group of self parameters and the size of the corresponding father part in the part model by using a relation function on the Creo software platform;
Step 3, accessing a family table of the male parent parts of each male parent part, adding corresponding sub-family parts, assigning design parameters of the corresponding sub-family parts to generate corresponding sub-family parts, finally breaking the attachment relation between each sub-family part and the male parent part of each sub-family part, and generating a corresponding new part model, wherein the method comprises the following steps: a vertical cylinder part model, a horizontal pouring channel part model, a vertical pouring channel part model and a riser part model; thereby completing three-dimensional rapid modeling of the casting pouring system;
step 4, packaging an assembly function, and selecting different constraint types and constraint references according to different assembly conditions, so that quick assembly is completed;
step 5, when the assembly is completed, the pretreatment of a new part model is realized;
step 5.1, obtaining each handle of the new part model, and realizing automatic dyeing;
and 5.2, acquiring a casting handle in the current assembly file, and realizing self-adaption of a new part model and corresponding casting units and precision.
The parameterized forming method is also characterized in that the step 3 is based on a Pro/Toolkit development tool and is carried out according to the following procedures:
step 3.1, defining a data structure of any one part in a new part model in a casting pouring system, comprising: size of the corresponding parts, family table sub-parts;
Step 3.2, initializing a group table and group table sub-parts of the corresponding parts through a group table initializing function ProFamtabaleInit and a group table sub-example initializing function ProFaminstaanceInit respectively, and adding a group table sub-system part for the group table of the corresponding parts through a group table sub-example adding function ProFaminstaanceAdd;
step 3.3, assigning the defined size value to the size of the corresponding part in the data structure body through a data updating function UpdateData;
step 3.4, a user-defined family table access function UserFamtabableItemVisitt action required by the ProFamtabableItemVisitt:
firstly, acquiring a family table name of a corresponding male parent part through a character conversion function ProWstringToString, then acquiring a project value of a family table sub-part in the corresponding male parent part through a family table sub-instance value acquisition function ProFaminstaneValueGet, and finally assigning parameters in the family table sub-part through a parameter setting function ProparamvalueSet and a family table sub-instance value setting function ProFaminstaneValueSet;
step 3.5, accessing the family table in the parent part and establishing the child part through a family table access function ProFamtabaleItemVisit and a family table sub-instance creation function ProFaminstanceCreate;
Step 3.6, removing the family table sub-system parts in the family table of the corresponding parent system parts through a family table sub-example removing function ProFaminstanceRemove, and taking the removed family table sub-system parts as newly generated parts; thereby breaking the attachment relationship between the newly generated part and the corresponding parent part and enabling the newly generated part to be an independent part.
The rapid assembly in step 4 is based on Pro/Toolkit development tools and proceeds as follows:
step 4.1, placing a new part model generated correspondingly at an initial position in the assembly body through an element placing function ProAsmcompASSEMBLE;
step 4.2, obtaining a constraint reference on the corresponding generated new part model through a model item obtaining function ProModellitem ByNameInit, storing the obtained constraint reference in an array, obtaining the constraint reference on the assembly through selecting a surface or an element in the assembly through an object selecting function Proselect, and storing the obtained constraint reference in the array;
step 4.3, customizing a data structure with a type name of ProAscompconstarnt, and distributing memory space to the ProAscompconstarnt data structure through a space distribution function ProAsmcompcon constraint;
Step 4.4, setting constraint types between the new part model and the components of the new part model through a constraint type setting function ProAsmcompcConstrantatTypeSet;
step 4.5, setting constraint references on the components through a component constraint reference setting function ProAsmcompcConstrantaining AssrenceSet, and setting constraint references on the correspondingly generated new part models through an element constraint reference setting function ProAsmcompcConstrantaining ComprenceSet;
step 4.6, customizing an assembly constraint array, adding the constraint reference set in the step 4.5 into the customized assembly constraint array through an object adding function ProArrayObjectAdd, and applying the corresponding generated new part model and the constraints among the components thereof through a constraint setting function ProAsmcompConstraintsSet, thereby completing assembly constraint setting;
and 4.7, regenerating a new part model and a component thereof through a model regeneration function ProSolidRegenate, thereby completing the rapid assembly between the newly generated part and the component.
The pretreatment of the new part model in the step 5 is based on Pro/Toolkit development tools and is performed according to the following procedures:
step 5.1.1, acquiring a handle of a new part model correspondingly generated through a model retrieval function ProMdlRetrieve;
Step 5.1.2, acquiring the surface attribute of the new part model correspondingly generated through a surface attribute acquisition function Prosurface AppartenceprepGet, and setting the surface color of the new part model correspondingly generated through a surface attribute setting function Prosurface AppartenceprepsSet;
step 5.2.1, a custom feature access action function ProFeatureVisittAction is used for accessing all features in the assembly feature tree, and a custom feature access filter function ProFeatureFilterAction is used for filtering reference planes, coordinates and other non-element features when accessing the assembly features;
step 5.2.2, traversing element features in the assembly file through a feature access function ProSolidFeatVisit, and then acquiring a casting handle in the assembly file through an element acquisition function ProAsmcompMdLGet;
step 5.2.3, obtaining a unit of the casting through a unit obtaining function ProMdlPrimlipalunit system mGlut, and setting a unit of a new part model correspondingly generated through a unit setting function ProMdlPrimlipalunit system set, so that the unit of the new part model correspondingly generated is consistent with the unit of the casting;
step 5.2.4, acquiring the precision of the casting through a precision acquisition function ProSolidAccurcactGet, and setting the precision of a new part model correspondingly generated through a precision setting function ProSolidAccurcactSet, so that the precision of the new part model correspondingly generated is consistent with the precision of the casting;
And 5.2.5, regenerating a new part model through a model regeneration function ProSolidRegenate, thereby realizing part pretreatment.
Compared with the prior art, the invention has the following outstanding advantages:
1. the parameterized design method of the invention develops the gating system commonly used in space casting, and has strong pertinence; the designer only needs to input basic size parameters, so that the quick forming of the pouring system can be finished, the size of the part can be modified by inputting numerical values through a dialog box, a great number of repeated operations of the designer are reduced, and meanwhile, the time loss caused by complex modeling is avoided.
2. The invention provides a design method for rapid molding of a three-dimensional model; the three-dimensional model is quickly generated by using the family table and the parameterized design, the inconvenience brought to the user by poor interactivity of the family table is overcome, the relationship between the new part and the father part is broken, and the three-dimensional model becomes an independent part, so that the limitation that the generated model cannot be modified or added by using the family table for quick modeling is broken through.
3. The invention can rapidly assemble the generated pouring system, and compared with the traditional assembly, the invention is simple and rapid, and saves the time of designers; some basic attributes of the parts are automatically set while the assembly is finished, tedious manual operation of a designer is avoided, and the post-treatment of the parts is facilitated.
In summary, the invention realizes man-machine interactive operation and rapidly realizes dimension assignment, thereby establishing a new pouring system model, simultaneously rapidly assembling, facilitating subsequent operation of designers, reducing unnecessary repeated operation of the designers, improving the design efficiency of the pouring system and saving design time.
Drawings
FIG. 1 is a block diagram of the overall modular design of the system of the present invention;
FIG. 2 is a block diagram of a parameterized design molding system of the casting system of the present invention;
FIG. 3 is a flow chart of the setting of the male parent part of the casting system of the present invention;
FIG. 4 is a flow chart of the rapid prototyping of a part of the casting system of the present invention;
FIG. 5 is a diagram of a logic implementation of the quick-assembly module of the present invention;
FIG. 6 is a diagram of a logic implementation of the pre-processing of the parts of the present invention;
fig. 7 is a diagram illustrating the use of the present invention.
Detailed Description
In this embodiment, the three modules of the three-dimensional runner rapid generation module, the rapid assembly module and the part pretreatment module are packaged by means of the Visual Studio2010 compiling platform, an MFC Visual user interface is used under the platform, and meanwhile, the seamless integration of the parameterized molding system of the design and the Creo platform is realized through dynamic link between an application program interface API (Application Programming Interface) provided by Creo and the MFC, as shown in fig. 1.
As shown in fig. 2, a parameterized molding system based on a casting pouring system includes: the device comprises a three-dimensional pouring channel rapid generation module, a rapid assembly module and a part pretreatment module;
the three-dimensional runner rapid generation module comprises: a vertical barrel parameterization design unit, a cross runner parameterization design subunit, a sprue parameterization design unit and a riser parameterization design unit;
the quick assembly module includes: a quick assembly unit for clicking the surface and a quick assembly unit for clicking the element;
the quick assembly unit of the selected element is divided into a quick assembly unit of the selected element based on surface-to-surface matching and a quick assembly unit of the selected element based on coordinate system matching;
the part pretreatment module comprises: an automatic dyeing processing unit, a unit self-adaptive processing unit and an accuracy self-adaptive processing unit;
firstly, a vertical cylinder parameterization design unit carries out three-dimensional modeling on a given vertical cylinder part on a Creo software platform to obtain a vertical cylinder part model; then, the vertical cylinder part model is used as a male parent part, a family table of the corresponding male parent part is established by utilizing a family table function on the Creo software platform, and the family table is used for storing a group of design parameters for controlling the shape and the size of the vertical cylinder part model; then adding a group of parameters for the vertical cylinder part model by using a parameter function on the Creo software platform, and establishing a function connection between the added group of parameters and the size of the vertical cylinder part model by using a relation function on the Creo software platform; programming the corresponding function of the design parameters of the vertical cylinder part model, thereby obtaining a parameterized program corresponding to the retrieval function and the modification function of the design parameters and the function of generating a new vertical cylinder part model according to the new parameter values; finally, breaking and generating the attachment relation between the new vertical cylinder part model and the male parent part in the parameterization program, so that the new vertical cylinder part model becomes an independent vertical cylinder part;
The method comprises the steps that a cross gate parameterization design unit firstly carries out three-dimensional modeling on a given cross gate part on a Creo software platform to obtain a cross gate part model; then, taking the transverse pouring channel part model as a male parent part, and establishing a family table of the corresponding male parent part by utilizing a 'family table' function on the Creo software platform, wherein the family table is used for storing a group of design parameters for controlling the shape and the size of the transverse pouring channel part model; then adding a group of parameters for the cross gate part model by using a parameter function on the Creo software platform, and establishing a function connection between the added group of parameters and the size of the cross gate part model by using a relation function on the Creo software platform; programming corresponding functions for design parameters of the cross gate part model, so as to obtain a parameterized program corresponding to a retrieval function and a modification function of the design parameters and a function of generating a new cross gate part model according to new parameter values; finally, breaking and generating an attaching relation between the new cross runner part model and the parent part of the new cross runner part model in a parameterization program, so that the new cross runner part model becomes an independent cross runner part;
firstly, the three-dimensional modeling of a given sprue part is completed by the sprue parameterized design unit by using Creo software, and a sprue part model is obtained; then taking the sprue part model as a male parent part, and establishing a family table of the corresponding male parent part by utilizing a 'family table' function on the Creo software platform, wherein the family table is used for storing a group of design parameters for controlling the shape and the size of the sprue part model; then adding a group of parameters for the sprue part model by using a parameter function on the Creo software platform, and establishing a function connection between the added group of parameters and the size of the sprue part model by using a relation function on the Creo software platform; programming corresponding functions for the design parameters of the sprue part model, so as to obtain a parameterized program corresponding to the retrieval function and the modification function of the design parameters and the function of generating a new sprue part model according to new parameter values; finally, breaking and generating the attachment relation between the new sprue part model and the parent part thereof in the corresponding parameterization program, so that the new sprue part model becomes an independent sprue part;
Firstly, the riser parameterization design unit utilizes Creo software to complete three-dimensional modeling of a given riser part, and a riser part model is obtained; then taking the riser part model as a male parent part, and establishing a family table of the corresponding male parent part by utilizing a 'family table' function on the Creo software platform, wherein the family table is used for storing a group of design parameters for controlling the shape and the size of the riser part model; then adding a group of parameters for the riser part model by using a parameter function on the Creo software platform, and establishing a function connection between the added group of parameters and the size of the riser part model by using a relation function on the Creo software platform; programming corresponding functions for the design parameters of the riser part model, so as to obtain a parameterized program corresponding to the retrieval function and the modification function of the design parameters and the function of generating a new riser part model according to new parameter values; finally, breaking and generating the attachment relation between the new riser part model and the parent part in the corresponding parameterization program, so that the new riser part model becomes an independent riser part;
a new part model is formed by a new vertical cylinder part model, a new cross gate part model, a new sprue part model and a new riser part model;
The quick assembly unit for the selected surfaces firstly places the new vertical cylinder part model on the background of the Creo software to obtain positioning reference information on the new vertical cylinder part model and store the positioning reference information in an array, and then selects three surfaces as positioning reference information in an assembly corresponding to the new vertical cylinder part model and store the positioning reference information in the array by utilizing a selection environment of a function interface entering surface on the Creo software platform; then, memory space is allocated to a data structure for representing assembly constraint of face-to-face matching, and finally constraint types and constraint references between the new vertical cylinder part model and corresponding components are set, so that assembly between the new vertical cylinder part model and the corresponding components is completed;
the quick assembly unit of the selected element based on the surface matching firstly places the element to be assembled in the background, the element to be assembled comprises a new cross runner part model and a new sprue part model, three assembly surface information on the element to be assembled is obtained and stored in an array, then a function interface on a Creo software platform is utilized to enter a selection environment of the element, one element in a corresponding assembly component is selected, and therefore three assembly surface information on the element is obtained and placed in the array; then, memory space is allocated to a data structure for representing assembly constraint of face-to-face matching, and finally constraint types and constraint references between the elements to be assembled and corresponding components are set, so that assembly between the elements to be assembled and the corresponding components is completed;
The quick assembly unit of the selected component based on the coordinate system is characterized in that a new riser part model is firstly placed in a background to obtain the coordinate system information of the component to be assembled and store in an array, then a function interface on a Creo software platform is utilized to enter a selection environment of the component, one component in a corresponding assembly component is selected, so that the coordinate system information of the component is obtained and placed in the array, then a memory space is allocated to a data structure for representing the assembly constraint of the coordinate system and the coordinate system, finally constraint types and constraint references between the new riser part model and the corresponding component are set, and assembly between the new riser part model and the corresponding component is completed;
the automatic dyeing processing unit firstly obtains each handle of the new part model, and obtains the surface attribute of the corresponding part model through each handle of the new part model, so that the color attribute in the surface attribute of the part model is set by using the function;
the unit self-adaptive processing unit firstly acquires a casting handle arranged in the assembly file, and acquires a unit of the casting through the casting handle, so that the unit of the element in the automatic dyeing processing unit is set according to the unit of the casting, and the unit of the element is consistent with the unit of the casting;
The precision self-adaptive processing unit firstly acquires a casting handle arranged in the assembly file, and acquires the precision of the casting through the casting handle, so that the precision of the element in the automatic dyeing processing unit is set according to the precision of the casting, and the precision of the element is consistent with the precision of the casting.
In this embodiment, a parametric shaping method based on a casting pouring system is performed according to the following steps:
step 1, carrying out three-dimensional modeling on a given part on a Creo software platform to obtain a part model, wherein the step comprises the following steps: a vertical cylinder part model, a horizontal pouring gate part model, a vertical pouring gate part model and a riser part model, which are respectively used as male parent parts;
step 2, finishing the setting of the male parent part: establishing a family table of corresponding male parent parts by utilizing a 'family table' function on the Creo software platform, storing a set of design parameters for controlling the shape and the size of each male parent part in the part model, respectively adding a set of self parameters for each male parent part in the part model by utilizing a 'parameter' function on the Creo software platform, and establishing a functional relationship between the added set of self parameters and the size of the corresponding male parent part in the part model by utilizing a 'relationship' function on the Creo software platform, as shown in figure 3;
Step 3, accessing a family table of the male parent parts of each male parent part, adding corresponding sub-family parts, assigning design parameters of the corresponding sub-family parts to generate corresponding sub-family parts, finally breaking the attachment relation between each sub-family part and the male parent part of each sub-family part, and generating a corresponding new part model, wherein the method comprises the following steps: a vertical cylinder part model, a horizontal pouring channel part model, a vertical pouring channel part model and a riser part model; thereby completing three-dimensional rapid modeling of the casting pouring system, and the flow chart is shown in fig. 4;
step 3.1, defining a data structure of any one part in a new part model in a casting pouring system, comprising: size of the corresponding parts, family table sub-parts;
step 3.2, initializing a group table and group table sub-parts of the corresponding parts through a group table initialization function ProFamtabaleInit and a group table sub-example initialization function ProFaminstaanceInit respectively, and adding a group table sub-system part for the group table of the corresponding parts through a group table sub-example addition function ProFaminstaanceAdd;
step 3.3, assigning the defined size value to the size of the corresponding part in the data structure body through a data updating function UpdateData;
Step 3.4, a user-defined family table access function UserFamtabableItemVisitt action required by the ProFamtabableItemVisitt:
firstly, acquiring a family table name of a corresponding male parent part through a character conversion function ProWstringToString, then acquiring a project value of a family table sub-part in the corresponding male parent part through a family table sub-instance value acquisition function ProFaminstaneValueGet, and finally assigning parameters in the family table sub-part through a parameter setting function ProparamvalueSet and a family table sub-instance value setting function ProFaminstaneValueSet;
step 3.5, completing access to a family table in the parent part and establishment of the child part through a family table access function ProFamtabaleItemVisit and a family table child instance creation function ProFaminstanceCreate;
step 3.6, removing the family table sub-system parts in the family table of the corresponding parent system parts through a family table sub-example removing function ProFaminstanceRemove, and taking the removed family table sub-system parts as newly generated parts; thereby breaking the attachment relationship between the newly generated part and the corresponding parent part and enabling the newly generated part to be an independent part.
Step 4, packaging an assembly function, and selecting different constraint types and constraint references according to different assembly conditions, so as to complete quick assembly, as shown in fig. 5;
Step 4.1, placing a new part model generated correspondingly at an initial position in the assembly body through an element placing function ProAsmcompASSEMBLE;
step 4.2, obtaining a constraint reference on the corresponding generated new part model through a model item obtaining function ProModellitem ByNameInit, storing the obtained constraint reference in an array, obtaining the constraint reference on the assembly through selecting a surface or an element in the assembly through an object selecting function Proselect, and storing the obtained constraint reference in the array;
step 4.3, customizing a data structure with a type name of ProAscompconstarnt, and distributing memory space to the ProAscompconstarnt data structure through a space distribution function ProAsmcompcon constraint;
step 4.4, setting constraint types between the new part model and the components of the new part model through a constraint type setting function ProAsmcompcConstrantatTypeSet;
step 4.5, setting constraint references on the components through a component constraint reference setting function ProAsmcompcConstrantaining AssrenceSet, and setting constraint references on the correspondingly generated new part models through an element constraint reference setting function ProAsmcompcConstrantaining ComprenceSet;
Step 4.6, customizing an assembly constraint array, adding the constraint reference set in the step 4.5 into the customized assembly constraint array through an object adding function ProArrayObjectAdd, and applying the corresponding generated new part model and the constraints among the components thereof through a constraint setting function ProAsmcompConstraintsSet, thereby completing assembly constraint setting;
and 4.7, regenerating a new part model and a component thereof through a model regeneration function ProSolidRegenate, thereby completing the rapid assembly between the newly generated part and the component.
Step 5, when the assembly is completed, the pretreatment of the parts is realized; comprising the following steps: 1. acquiring each handle of the new part model, and realizing automatic dyeing; 2. and acquiring a casting handle in the current assembly file, and realizing the self-adaption of the new part model and corresponding casting units and precision. As shown in fig. 6, in particular;
step 5.1, acquiring a handle of a new part model correspondingly generated through a model retrieval function ProMdlRetrieve;
step 5.2, acquiring the surface attribute of the new part model correspondingly generated through a surface attribute acquisition function Prosurface appliance procedure Get, and setting the surface color of the new part model correspondingly generated through a surface attribute setting function Prosurface appliance procedure set;
Step 5.3, the custom feature access action function ProFeatureVisittAction is used for accessing all features in the assembly feature tree, and the custom feature access filter function ProFeatureFilterAction is used for filtering out reference planes, coordinates and other non-element features when accessing the assembly features;
step 5.4, traversing element features in the assembly file through a feature access function ProSolidFeatVisit, and then acquiring a casting handle in the assembly file through an element acquisition function ProAsmcompMdLGet;
step 5.5, obtaining a unit of the casting through a unit obtaining function ProMdlPrcipalitunetsystem, and setting a unit of a new part model correspondingly generated through a unit setting function ProMdlPrcipaltitsystem set, so that the unit of the new part model correspondingly generated is consistent with the unit of the casting;
step 5.6, acquiring the precision of the casting through a precision acquisition function ProSolidAccurcaceGet, and setting the precision of a new part model correspondingly generated through a precision setting function ProSolidAccurcaceSet, so that the precision of the new part model correspondingly generated is consistent with the precision of the casting;
and 5.7, regenerating a new part model through a model regeneration function ProSolidRegenate, so as to realize part pretreatment.
One of the casting systems is modeled by using a parameterized molding system of the casting system and a Creo self-carrying function, and the implementation process is shown in FIG. 7:
step 1, opening Creo software, creating a blank assembly file, and placing a casting needing to be added with a pouring system in the blank assembly file;
step 2, starting the parameterized design system, selecting the runner type to be placed, completing corresponding size parameter setting, generating a new part according to a parameter value input in a dialog box by a program, and placing the part in a background, wherein the part is in the background and in an unassembled state, and displaying when the assembly is completed;
step 3, selecting an assembly reference according to system prompt information, wherein the system prompt information appears at the left lower corner of the Creo interface, and the assembly is completed after the selection is completed;
and 4, automatically calling a part preprocessing module by a program, and automatically completing the setting of the related attributes of the part when the part is assembled.
Claims (2)
1. The parameterized molding system based on the casting pouring system is characterized by being applied to a creo software platform and comprising: the device comprises a three-dimensional pouring channel rapid generation module, a rapid assembly module and a part pretreatment module;
the three-dimensional pouring channel rapid generation module comprises: a vertical barrel parameterization design unit, a cross runner parameterization design subunit, a sprue parameterization design unit and a riser parameterization design unit;
The quick assembly module includes: a quick assembly unit for clicking the surface and a quick assembly unit for clicking the element;
the quick assembly unit of the selected element is divided into a quick assembly unit of the selected element based on surface-to-surface matching and a quick assembly unit of the selected element based on coordinate system matching;
the part pretreatment module comprises: an automatic dyeing processing unit, a unit self-adaptive processing unit and an accuracy self-adaptive processing unit;
the vertical cylinder parameterization design unit firstly carries out three-dimensional modeling on a given vertical cylinder part on a Creo software platform to obtain a vertical cylinder part model; then the vertical cylinder part model is used as a male parent part, a family table of the corresponding male parent part is established by utilizing the 'family table' function on the Creo software platform, and the family table is used for storing a group of design parameters for controlling the shape and the size of the vertical cylinder part model; then adding a group of parameters for the vertical cylinder part model by using a parameter function on the Creo software platform, and establishing a function connection between the added group of parameters and the size of the vertical cylinder part model by using a relation function on the Creo software platform; programming corresponding functions for the design parameters of the vertical cylinder part model, so as to obtain a parameterized program corresponding to a retrieval function and a modification function of the design parameters and a function of generating a new vertical cylinder part model according to new parameter values; finally, breaking and generating an attaching relation between the new vertical cylinder part model and the male parent part of the new vertical cylinder part model in the parameterization program, so that the new vertical cylinder part model becomes an independent vertical cylinder part;
The cross gate parameterization design subunit firstly carries out three-dimensional modeling on a given cross gate part on a Creo software platform to obtain a cross gate part model; then the cross gate part model is used as a male parent part, a family table of the corresponding male parent part is established by utilizing a family table function on a Creo software platform, and the family table is used for storing a group of design parameters for controlling the shape and the size of the cross gate part model; then adding a group of parameters for the cross gate part model by using a parameter function on the Creo software platform, and establishing a function connection between the added group of parameters and the size of the cross gate part model by using a relation function on the Creo software platform; programming corresponding functions for the design parameters of the cross gate part model, so as to obtain a parameterized program corresponding to a retrieval function and a modification function of the design parameters and a function of generating a new cross gate part model according to new parameter values; finally, breaking and generating an attaching relation between a new cross gate part model and a parent part of the new cross gate part model in the parameterization program, so that the new cross gate part model becomes an independent cross gate part;
The sprue parameterized design unit firstly utilizes Creo software to complete three-dimensional modeling of a given sprue part, and a sprue part model is obtained; then the straight pouring channel part model is used as a male parent part, a family table of the corresponding male parent part is established by utilizing the 'family table' function on the Creo software platform, and the family table is used for storing a group of design parameters for controlling the shape and the size of the straight pouring channel part model; then adding a group of parameters for the sprue part model by using a parameter function on the Creo software platform, and establishing a function connection between the added group of parameters and the size of the sprue part model by using a relation function on the Creo software platform; programming corresponding functions for the design parameters of the sprue part model, so as to obtain a parameterized program corresponding to a retrieval function and a modification function of the design parameters and a function of generating a new sprue part model according to new parameter values; finally, breaking and generating an attachment relation between a new sprue part model and a parent part thereof in a corresponding parameterization program, so that the new sprue part model becomes an independent sprue part;
The riser parameterization design unit firstly utilizes Creo software to complete three-dimensional modeling of a given riser part, and a riser part model is obtained; then the riser part model is used as a male parent part, a family table of the corresponding male parent part is established by utilizing a 'family table' function on a Creo software platform, and the family table is used for storing a group of design parameters for controlling the shape and the size of the riser part model; then adding a group of parameters for the riser part model by using a parameter function on the Creo software platform, and establishing a function connection between the added group of parameters and the size of the riser part model by using a relation function on the Creo software platform; programming corresponding functions for the design parameters of the riser part model, so as to obtain a parameterized program corresponding to a retrieval function and a modification function of the design parameters and a function of generating a new riser part model according to new parameter values; finally, breaking and generating the attachment relation between the new riser part model and the parent part thereof in the corresponding parameterization program, so that the new riser part model becomes an independent riser part;
forming a new part model by the new vertical cylinder part model, the new cross gate part model, the new sprue part model and the new riser part model;
The quick assembly unit for the selected surfaces firstly places a new vertical cylinder part model on a Creo software background to obtain positioning reference information on the new vertical cylinder part model and store the positioning reference information in an array, and then selects three surfaces as positioning reference information in an assembly corresponding to the new vertical cylinder part model and store the positioning reference information in the array by utilizing a selection environment of a function interface entering surface on a Creo software platform; then, memory space is allocated to a data structure for representing assembly constraint of face-to-face matching, and finally constraint types and constraint references between the new vertical cylinder part model and corresponding components are set, so that assembly between the new vertical cylinder part model and the corresponding components is completed;
the quick assembly unit of the selected element based on the surface matching firstly places the element to be assembled in the background, the element to be assembled comprises a new cross gate part model and a new sprue part model, three assembly surface information on the element to be assembled is obtained and stored in an array, then a function interface on a Creo software platform is utilized to enter a selection environment of the element, one element in a corresponding assembly component is selected, and therefore three assembly surface information on the element is obtained and placed in the array; then, memory space is allocated to a data structure for representing assembly constraint of face-to-face matching, and finally constraint types and constraint references between the element to be assembled and the corresponding components are set, so that assembly between the element to be assembled and the corresponding components is completed;
The quick assembly unit of the selected component based on the coordinate system is characterized in that a new riser part model is firstly placed in a background to obtain coordinate system information of the component to be assembled and store the coordinate system information in an array, then a function interface on a Creo software platform is utilized to enter a selection environment of the component, one component in a corresponding assembly component is selected, so that the coordinate system information on the component is obtained and placed in the array, then a memory space is allocated to a data structure for representing assembly constraint of the coordinate system and the coordinate system, finally constraint types and constraint references between the new riser part model and corresponding components are set, and assembly between the new riser part model and the corresponding components is completed;
the automatic dyeing processing unit firstly obtains each handle of the new part model, and obtains the surface attribute of the corresponding part model through each handle of the new part model, so that the color attribute in the surface attribute of the part model is set by using a function;
the unit self-adaptive processing unit firstly acquires a casting handle arranged in an assembly file, and acquires a unit of a casting through the casting handle, so that the unit of an element in the automatic dyeing processing unit is set according to the unit of the casting, and the unit of the element is consistent with the unit of the casting;
The precision self-adaptive processing unit firstly acquires a casting handle arranged in the assembly file, and acquires the precision of the casting through the casting handle, so that the precision of the element in the automatic dyeing processing unit is set according to the precision of the casting, and the precision of the element is consistent with the precision of the casting.
2. The parameterized forming method based on the casting pouring system is characterized by being applied to a creo software platform and performed according to the following steps;
step 1, carrying out three-dimensional modeling on a given part on a Creo software platform to obtain a part model, wherein the step comprises the following steps: a vertical cylinder part model, a horizontal pouring gate part model, a vertical pouring gate part model and a riser part model, which are respectively used as male parent parts;
step 2, finishing the setting of the male parent part:
step 2.1, establishing a family table of corresponding male parent parts by utilizing a family table function on a Creo software platform, wherein the family table is used for storing a group of design parameters for controlling the shape and the size of each male parent part in the part model;
step 2.2, adding a group of self parameters for each father part in the part model by using a parameter function on the Creo software platform, and then establishing a function connection between the added group of self parameters and the size of the corresponding father part in the part model by using a relation function on the Creo software platform;
Step 3, accessing a family table of the male parent parts of each male parent part, adding corresponding sub-family parts, assigning design parameters of the corresponding sub-family parts to generate corresponding sub-family parts, finally breaking the attachment relation between each sub-family part and the male parent part of each sub-family part, and generating a corresponding new part model, wherein the method comprises the following steps: a vertical cylinder part model, a horizontal pouring channel part model, a vertical pouring channel part model and a riser part model; thereby completing three-dimensional rapid modeling of the casting pouring system based on the Pro/Toolkit development tool;
step 3.1, defining a data structure of any one part in a new part model in a casting pouring system, comprising: size of the corresponding parts, family table sub-parts;
step 3.2, initializing a group table and group table sub-parts of the corresponding parts through a group table initializing function ProFamtabaleInit and a group table sub-example initializing function ProFaminstaanceInit respectively, and adding a group table sub-system part for the group table of the corresponding parts through a group table sub-example adding function ProFaminstaanceAdd;
step 3.3, assigning the defined size value to the size of the corresponding part in the data structure body through a data updating function UpdateData;
Step 3.4, a user-defined family table access function UserFamtabableItemVisitt action required by the ProFamtabableItemVisitt:
firstly, acquiring a family table name of a corresponding male parent part through a character conversion function ProWstringToString, then acquiring a project value of a family table sub-part in the corresponding male parent part through a family table sub-instance value acquisition function ProFaminstaneValueGet, and finally assigning parameters in the family table sub-part through a parameter setting function ProparamvalueSet and a family table sub-instance value setting function ProFaminstaneValueSet;
step 3.5, accessing the family table in the parent part and establishing the child part through a family table access function ProFamtabaleItemVisit and a family table sub-instance creation function ProFaminstanceCreate;
step 3.6, removing the family table sub-system parts in the family table of the corresponding parent system parts through a family table sub-example removing function ProFaminstanceRemove, and taking the removed family table sub-system parts as newly generated parts; thereby breaking the attachment relationship between the newly generated part and the corresponding parent part, and enabling the newly generated part to be an independent part;
step 4, packaging an assembly function, and selecting different constraint types and constraint references according to different assembly conditions, so that quick assembly is completed based on a Pro/Toolkit development tool;
Step 4.1, placing a new part model generated correspondingly at an initial position in the assembly body through an element placing function ProAsmcompASSEMBLE;
step 4.2, obtaining a constraint reference on the corresponding generated new part model through a model item obtaining function ProModellitem ByNameInit, storing the obtained constraint reference in an array, obtaining the constraint reference on the assembly through selecting a surface or an element in the assembly through an object selecting function Proselect, and storing the obtained constraint reference in the array;
step 4.3, customizing a data structure with a type name of ProAscompconstarnt, and distributing memory space to the ProAscompconstarnt data structure through a space distribution function ProAsmcompcon constraint;
step 4.4, setting constraint types between the new part model and the components of the new part model through a constraint type setting function ProAsmcompcConstrantatTypeSet;
step 4.5, setting constraint references on the components through a component constraint reference setting function ProAsmcompcConstrantaining AssrenceSet, and setting constraint references on the correspondingly generated new part models through an element constraint reference setting function ProAsmcompcConstrantaining ComprenceSet;
Step 4.6, customizing an assembly constraint array, adding the constraint reference set in the step 4.5 into the customized assembly constraint array through an object adding function ProArrayObjectAdd, and applying the corresponding generated new part model and the constraints among the components thereof through a constraint setting function ProAsmcompConstraintsSet, thereby completing assembly constraint setting;
step 4.7, regenerating a new part model and components thereof through a model regeneration function ProSolidRegenate, thereby completing quick assembly between the newly generated part and the components;
step 5, when the assembly is completed, realizing the pretreatment of a new part model based on a Pro/Toolkit development tool;
step 5.1, obtaining each handle of the new part model, and realizing automatic dyeing;
step 5.1.1, acquiring a handle of a new part model correspondingly generated through a model retrieval function ProMdlRetrieve;
step 5.1.2, acquiring the surface attribute of the new part model correspondingly generated through a surface attribute acquisition function Prosurface AppartenceprepGet, and setting the surface color of the new part model correspondingly generated through a surface attribute setting function Prosurface AppartenceprepsSet;
step 5.2, acquiring a casting handle in the current assembly file, and realizing self-adaption of a new part model and corresponding casting units and precision;
Step 5.2.1, a custom feature access action function ProFeatureVisittAction is used for accessing all features in the assembly feature tree, and a custom feature access filter function ProFeatureFilterAction is used for filtering reference planes, coordinates and other non-element features when accessing the assembly features;
step 5.2.2, traversing element features in the assembly file through a feature access function ProSolidFeatVisit, and then acquiring a casting handle in the assembly file through an element acquisition function ProAsmcompMdLGet;
step 5.2.3, obtaining a unit of the casting through a unit obtaining function ProMdlPrimlipalunit system mGlut, and setting a unit of a new part model correspondingly generated through a unit setting function ProMdlPrimlipalunit system set, so that the unit of the new part model correspondingly generated is consistent with the unit of the casting;
step 5.2.4, acquiring the precision of the casting through a precision acquisition function ProSolidAccurcactGet, and setting the precision of a new part model correspondingly generated through a precision setting function ProSolidAccurcactSet, so that the precision of the new part model correspondingly generated is consistent with the precision of the casting;
and 5.2.5, regenerating a new part model through a model regeneration function ProSolidRegenate, thereby realizing part pretreatment.
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