CN102637220A - Three-dimensional expansion semantic model of tool standard part - Google Patents
Three-dimensional expansion semantic model of tool standard part Download PDFInfo
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- CN102637220A CN102637220A CN2012100589341A CN201210058934A CN102637220A CN 102637220 A CN102637220 A CN 102637220A CN 2012100589341 A CN2012100589341 A CN 2012100589341A CN 201210058934 A CN201210058934 A CN 201210058934A CN 102637220 A CN102637220 A CN 102637220A
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Abstract
The invention discloses a three-dimensional expansion semantic model of a tool standard part, belonging to the field of equipment design of aircraft manufacturing technology. The three-dimensional expansion semantic model has the following features: 1) specification structure; 2) inner name structure; 3) technological conditions; 4) external parameters; 5) automatic query; 6) reference elements; 7) parameters; 8) shape units; and 9) target reference. A defining and compiling process comprises the following steps of: 1) decomposing the three-dimensional structure of the standard part, and determining the composition shape units and description parameters thereof; 2) determining the design coordinate system of each element shape unit; 3) calculating the positioning coordinate system of the shape unit in the parent part thereof; and 4) compiling a model text file according to the grammar of the model structure. The model has stronger expression ability, higher adaptability and more complete information.
Description
Technical field
The present invention is the three-dimensional semantic model of expanding of a kind of tool standard part, belongs to aircraft manufacturing technological equipment design field.
Background technology
In aircraft development is produced, use a large amount of special process equipments, in these equipment configurations, adopted a series of application specific standard parts.Therefore, research and develop three-dimensional tool standard part storehouse, shortening aircraft manufacturing frock design cycle, raising frock design efficiency are had the important engineering meaning.The definition and the expression of three-dimensional tool standard part are the bases of exploitation standard parts library, once to the design feature of aircraft manufacturing tool standard part, propose and set up the semantic model of three-dimensional tool standard part for this reason, and be as follows:
< standard component >: :=< type >; < specification series >; < attribute list >; < parameter list >;
< shape unit table >; < editor >; < shape expression formula >;
< element benchmark >; < target benchmark >; < explanation >;
Through development and application, find that still there are some limitations in this model, mainly shows to above-mentioned model:
1) specification definition.In < specification series >, list alternative all specifications of each standard component in detail, and utilize these specifications to inquire about < parameter list >, call and generate the standard component three-dimensional model.But; In the specification definition of tool standard part; If wherein certain parameter value is a scope (this also is one of common characteristics of tool standard part), so just can't list each specification in this standard component, therefore also just can't call this standard component through specification;
2) parameter type.For the standard component of particular type and specification, its all values of parameters all are single.But in fact; For the standard component of some particular type and specification, certain values of parameters wherein or a series or a scope are for such parameter is provided with single value; The result causes the information dropout of relevant criterion part, is unfavorable for the use of these standard components in the frock design;
3) shape unit.All shape units are several types of the most basic voxels, and the definition procedure of vertical pulling body wherein and rotary body etc. is loaded down with trivial details.The The existing CAD system has powerful geometric modeling function, and can't directly utilize CAD system to carry out the shape unit modeling in the above-mentioned model, has limited the practicality and the validity of this model;
4) target benchmark.Through directly coming the objective definition benchmark to set the goal reference component or its calculating formula, the target benchmark of definition is unique often thus.But in fact, the installation position of standard component is along with the difference of some structural parameters in tool structure, and its target benchmark is not quite similar.Above-mentioned three-dimensional tool standard part semantic model can't adapt to such application requirements.
Summary of the invention
In order to address these problems, the present invention carries out necessary correction and expansion to above-mentioned three-dimensional tool standard part semantic model, and has formed the three-dimensional expansion of the tool standard part semantic model that ability to express is more powerful, applicability is stronger and information is more complete.
The three-dimensional semantic model of expanding of a kind of tool standard part is characterized in that: comprise following characteristic in the semantic model: 1) specification framework; 2) name structure in; 3) process conditions; 4) external parameter; 5) inquiry automatically; 6) with reference to plain; 7) parameter; 8) shape unit; 9) target benchmark;
The BNF of this semantic model is defined as:
< standard component >: :=< type >; < specification framework >; < interior name structure >; < input table >;
< outer ginseng table >; < joining the formula table outward >; < joining the initial value table outward >;
< querying condition >; < with reference to plain table >; { < attribute list >;
< parameter list >; < shape unit table >; < edit commands table >;
< shape expression formula >; < element benchmark >; < target benchmark >;
< target benchmark formula >; < explanation >; < component attributes >.
The BNF definition list of described < specification framework>is shown:
< specification framework >: :=SizeConstruct: [< single structure>{, < single structure>}];
< single structure >: :=[A|B|C] [M] < attribute>[' < precision attribute>']
X < attribute>[' < precision attribute>'];
Wherein the plurality of specifications structure be can define simultaneously, type letter, parameter attribute and precision attribute etc. comprised in every kind of structure simultaneously.This definition no longer need be listed all specifications of standard component one by one, has solved the existing limitation of former semantic model < specification series >.
Through the definition of < interior name structure >, name form when having stipulated that standard component calls.
Described process conditions are according to defined prompting in < input table >, and mutual selection standard spare mounting process condition utilizes these conditions to select the standard component of specific standard automatically, and realize the automatic location and the installation of standard component.
Described external parameter is to have defined < outer ginseng table >, < joining the formula table outward>and model units such as < joining the initial value table outward>respectively; Wherein list in detail in < outer ginseng table>certain standard component call and install in each required external parameter; Utilize these external parameters to define the automatic querying condition of standard component, realize the automatic inquiry of standard component.
Described automatic inquiry is the querying condition that in < querying condition >, has defined standard component, in the standard component invoked procedure, through the judgement to these conditions, confirms the concrete specification of the standard component that satisfies condition automatically, has realized calling automatically of standard component.
Described is in < with reference to plain table >, to have defined a series of assisted geometric elements with reference to element, comprises point, line and face etc., in follow-up shape unit and benchmark definition, can directly utilize these elements.
Described values of parameters or monodrome or series of values or successive value or form value.
" self-defined characteristic ", " model file " and types such as " standard components " in the described shape unit, except original voxel, have been increased.
Described target benchmark not only can direct given reference component and calculating formula thereof, and definition component object.
The three-dimensional semantic model of expanding of a kind of tool standard part, its definition and compilation process are following: 1) decompose the three-dimensional structure of standard component, confirm its formed shape unit and characterising parameter thereof; 2) confirm the design coordinate system of each element class shape unit; 3) calculate the elements of a fix system of shape unit in his father's part; 4) according to the model structure syntax, establishment model text; 5) use the supervisory routine that matches with model, debugging and modification model file.
Beneficial effect of the present invention: more former three-dimensional tool standard part semantic model, the effect of the three-dimensional expansion of tool standard part provided by the invention semantic model is mainly following: 1) information representation is complete.But the three-dimensional semantic model descriptor of the three-dimensional standard component of complete definition basically of expanding of tool standard part is for calling of standard component provides sufficient data support; 2) model definition is convenient.The three-dimensional expansion of tool standard part semantic model can directly utilize the moulding and the modeling function of CAD system (platform), simplifies the definition of standard component shape unit, greatly facilitates the definition of standard component semantic model; 3) call and install intelligent degree height.The three-dimensional definition of expanding semantic model of tool standard part through process conditions, external parameter and querying condition; Realized according to outside mounting process condition come to choose automatically, the target of location and installation code spare, thereby obviously promoted the intelligent level that standard component calls and installs.
Description of drawings
Fig. 1 is the compilation process of part class tool standard part semantic model.
Fig. 2 is the compilation process of component class tool standard part semantic model.
The structural drawing of " with the vee-block drill jig that centers " that Fig. 3 uses for Shenyang Airplane Ind. (Group) Co., Ltd. is inner.
Embodiment
The definition and the compilation process of the three-dimensional expansion of a kind of tool standard part semantic model are following:
1) three-dimensional structure of decomposition standard component is confirmed its formed shape unit and characterising parameter thereof;
2) confirm the design coordinate system of each element class shape unit;
3) calculate the elements of a fix system of shape unit in his father's part;
4) according to the model structure syntax, establishment model text;
5) use the supervisory routine that matches with model, debugging and modification model file.
The compilation process of the three-dimensional expansion of part class tool standard part semantic model is as shown in Figure 1, and the compilation process of the three-dimensional expansion of component class tool standard part semantic model is as shown in Figure 2.
Comprise following characteristic in its semantic model: 1) specification framework; 2) name structure in; 3) process conditions; 4) external parameter; 5) inquiry automatically; 6) with reference to plain; 7) parameter; 8) shape unit; 9) target benchmark.
The BNF of this semantic model is defined as:
< standard component >: :=< type >; < specification framework >; < interior name structure >; < input table >;
< outer ginseng table >; < joining the formula table outward >; < joining the initial value table outward >;
< querying condition >; < with reference to plain table >; { < attribute list >;
< parameter list >; < shape unit table >; < edit commands table >;
< shape expression formula >; < element benchmark >; < target benchmark >;
< target benchmark formula >; < explanation >; < component attributes >.
The BNF definition list of described < specification framework>is shown:
< specification framework >: :=SizeConstruct: [< single structure>{, < single structure>}];
< single structure >: :=[A|B|C] [M] < attribute>[' < precision attribute>']
X < attribute>[' < precision attribute>'];
Wherein the plurality of specifications structure be can define simultaneously, type letter, parameter attribute and precision attribute etc. comprised in every kind of structure simultaneously.This definition no longer need be listed all specifications of standard component one by one, has solved the existing limitation of former semantic model < specification series >.
Through the definition of < interior name structure >, name form when having stipulated that standard component calls like " type specification " or " specification type ", has solved the diverse problems of standard component name in practical application.Former three-dimensional tool standard part semantic model can only be supported the standard component name of " type specification " form.
Described process conditions are according to defined prompting in < input table >; Mutual selection standard spare mounting process condition; Utilize these conditions to select the standard component of specific standard automatically, and realize the automatic location and the installation of standard component, thereby promote the intelligent level that standard component calls and installs greatly.Former three-dimensional tool standard part semantic model does not possess according to process conditions chooses the ability with installation code spare automatically.
Described external parameter is to have defined < outer ginseng table >, < joining the formula table outward>and model units such as < joining the initial value table outward>respectively; Wherein list in detail in < outer ginseng table>certain standard component call and install in each required external parameter; These parameters all are not standard component organization definition desired parameters, because of rather than this standard component parameter list in the formation parameter.Utilize these external parameters to define the automatic querying condition of standard component, realize the automatic inquiry of standard component.And former three-dimensional tool standard part semantic model does not possess the ability of external parameter definition.
Described automatic inquiry is the querying condition that in < querying condition >, has defined standard component, in the standard component invoked procedure, through the judgement to these conditions, confirms the concrete specification of the standard component that satisfies condition automatically, has realized calling automatically of standard component; And former three-dimensional tool standard part semantic model does not contain the definition of the automatic querying condition of standard component.
Described is in < with reference to plain table >, to have defined a series of assisted geometric elements with reference to element, comprises point, line and face etc., in follow-up shape unit and benchmark definition, can directly utilize these elements, thereby simplify the definition procedure of unit and benchmark; And former three-dimensional tool standard part semantic model does not possess with reference to plain definition and use ability.
In < parameter list >, values of parameters or monodrome or series of values or successive value or form value.Parameter in the former three-dimensional tool standard part semantic model can only be got monodrome.
In the described shape unit, except original voxel, increase " self-defined characteristic ", " model file " and types such as " standard components ", thereby strengthened the ability to express of standard component structure and shape greatly.Former three-dimensional tool standard part semantic model does not contain " self-defined characteristic ", " model file " and shape units such as " standard components ".
Described target benchmark not only can direct given reference component and calculating formula thereof, but also definable component object, these objects can calculate according to < target benchmark calculating formula >.Because comprised judgement statements such as condition in the target benchmark calculating formula, reference component will be got different value according to these conditions, solved standard component and installed and the multifarious problem of locator meams.Former three-dimensional tool standard part semantic model is not supported the variation of standard component location.
Adopt the three-dimensional semantic model definition mode of expanding of tool standard part of the present invention, the semantic model of frock shown in Figure 3 be defined as:
TYPE: QB1AJ24-1991;
SizeConstruct:L;
NAME:ST;
EXTERNALS:LL,SS?;
EXVALS:165,60?;
QueryCondition:L==LL,S==SS;
PARAMETERS:?s,r,c+2r,L,B,H,b,h,S,QB1AJ24-1991-1,QB1AJ24-1991-2,QB1AJ24-1991-3,QB1AJ24-1991-4,QB1AJ24-1991-5,QB1AJ24-1991-6,QB1AJ24-1991-7,QB1AJ24-1991-8,QB1AJ24-1991-9,QB1AJ24-1991-10,QB1AJ24-1991-11,QB1AJ24-1991-12,QB1AJ24-1991-13,Smin;
VALUES:?(1,5~10,20~50,165,98,100,40,12,42~72,1-1,1-2,1-3,1-4,1-5,1-6,1-7,1-8,1-9,1-10,1-11,1-12,1-13,42),?(2,5~15,35~70,205,110,108,46,12,62~92,2-1,2-2,2-3,2-4,2-5,2-6,2-7,2-8,2-9,2-10,2-11,2-12,2-13,62),?(3,5~18,55~95,235,120,118,56,14,82~112,3-1,3-2,3-3,3-4,3-5,3-6,3-7,3-8,3-9,3-10,3-11,3-12,3-13,82),?(4,5~20,85~125,280,130,131,62,14,112~142,4-1,4-2,4-3,4-4,4-5,4-6,4-7,4-8,4-9,4-10,4-11,4-12,4-13,112);
PRIMITIVES:
QB1AJ24-1991-1(0,0,0?,1,0,0,?0,1,0),
QB1AJ24-1991-2('QB1AJ24-1991-1.l1','QB1AJ24-1991-1.B'/2,'QB1AJ24-1991-1.H'-'QB1AJ24-1991-1.h1'?,0,-1,0,?1,0,0),
QB1AJ24-1991-3('QB1AJ24-1991-1.l1'+S/2,-'QB1AJ24-1991-1.B13'-'QB1AJ24-1991-1.B11'+'QB1AJ24-1991-1.B'/2,'QB1AJ24-1991-1.H'-'QB1AJ24-1991-1.h1'?,0,-1,0,?1,0,0),
QB1AJ24-1991-10('QB1AJ24-1991-1.l1'-S/2-'QB1AJ24-1991-10.L',-'QB1AJ24-1991-1.B13'-'QB1AJ24-1991-1.B11'+'QB1AJ24-1991-1.B'/2,'QB1AJ24-1991-1.H'-'QB1AJ24-1991-1.h1'?,0,-1,0,?1,0,0),
QB1AJ24-1991-4('QB1AJ24-1991-3.l1'+'QB1AJ24-1991-1.l1'+S/2,-'QB1AJ24-1991-1.B13'-'QB1AJ24-1991-1.B11'+'QB1AJ24-1991-1.B'/2+'QB1AJ24-1991-3.t','QB1AJ24-1991-1.H'-'QB1AJ24-1991-1.h1'+'QB1AJ24-1991-3.h2'?,-1,0,0,?0,-1,0),
QB1AJ24-1991-4('QB1AJ24-1991-1.l1'-S/2-'QB1AJ24-1991-10.l1',-'QB1AJ24-1991-1.B13'-'QB1AJ24-1991-1.B11'+'QB1AJ24-1991-1.B'/2+'QB1AJ24-1991-10.t','QB1AJ24-1991-1.H'-'QB1AJ24-1991-1.h1'+'QB1AJ24-1991-10.h2'?,1,0,0,?0,1,0),
QB1AJ24-1991-5('QB1AJ24-1991-1.l1','QB1AJ24-1991-1.B'/2-('QB1AJ24-1991-2.l11'+'QB1AJ24-1991-2.l12'+'QB1AJ24-1991-5.B'/2),'QB1AJ24-1991-2.h1'+'QB1AJ24-1991-1.H'-'QB1AJ24-1991-1.h1'?,0,-1,0,?1,0,0),
QB1AJ24-1991-5('QB1AJ24-1991-1.l1','QB1AJ24-1991-1.B'/2-('QB1AJ24-1991-2.l11'+'QB1AJ24-1991-5.B'/2),'QB1AJ24-1991-2.h1'+'QB1AJ24-1991-1.H'-'QB1AJ24-1991-1.h1'?,0,-1,0,?1,0,0),
QB1AJ24-1991-6('QB1AJ24-1991-1.l1'-'QB1AJ24-1991-2.b10'-'QB1AJ24-1991-2.b8'-'QB1AJ24-1991-6.l',-'QB1AJ24-1991-1.B'/2+'QB1AJ24-1991-2.r','QB1AJ24-1991-2.h'-'QB1AJ24-1991-2.r'+'QB1AJ24-1991-1.H'-'QB1AJ24-1991-1.h1'?,-1,0,0,?0,0,1),
QB1AJ24-1991-7('QB1AJ24-1991-3.l1'+'QB1AJ24-1991-1.l1'+S/2+'QB1AJ24-1991-4.B'/2+'QB1AJ24-1991-7.l1'+'QB1AJ24-1991-7.b'/2,-'QB1AJ24-1991-1.B13'-'QB1AJ24-1991-1.B11'+'QB1AJ24-1991-1.B'/2+'QB1AJ24-1991-3.t','QB1AJ24-1991-1.H'-'QB1AJ24-1991-1.h1'+'QB1AJ24-1991-3.h2'?,0,-1,0,?1,0,0),
QB1AJ24-1991-7('QB1AJ24-1991-1.l1'-S/2-'QB1AJ24-1991-10.l1'-'QB1AJ24-1991-4.B'/2-'QB1AJ24-1991-7.l1'-'QB1AJ24-1991-7.b'/2,-'QB1AJ24-1991-1.B13'-'QB1AJ24-1991-1.B11'+'QB1AJ24-1991-1.B'/2+'QB1AJ24-1991-10.t','QB1AJ24-1991-1.H'-'QB1AJ24-1991-1.h1'+'QB1AJ24-1991-10.h2'?,0,1,0,?-1,0,0),
QB1AJ24-1991-8('QB1AJ24-1991-8.l'+'QB1AJ24-1991-8.K'+'QB1AJ24-1991-8.b'/2+'QB1AJ24-1991-1.l1','QB1AJ24-1991-1.B'/2-'QB1AJ24-1991-2.l10','QB1AJ24-1991-2.h6'+'QB1AJ24-1991-1.H'-'QB1AJ24-1991-1.h1'?,1,0,0,?0,cos((S-Smin)/2/('QB1AJ24-1991-3.P')*360),sin((S-Smin)/2/('QB1AJ24-1991-3.P')*360)),
QB1AJ24-1991-9('QB1AJ24-1991-1.l1','QB1AJ24-1991-1.B'/2-('QB1AJ24-1991-1.B11'+'QB1AJ24-1991-1.B13'-'QB1AJ24-1991-1.B10'),'QB1AJ24-1991-1.h5'-'QB1AJ24-1991-9.h'?,0,1,0,?-1,0,0),
QB1AJ24-1991-11('QB1AJ24-1991-1.l1'+'QB1AJ24-1991-2.b'/2-'QB1AJ24-1991-2.b12'+'QB1AJ24-1991-11.L'-'QB1AJ24-1991-11.l','QB1AJ24-1991-1.B'/2-('QB1AJ24-1991-1.B11'+'QB1AJ24-1991-1.B13'-'QB1AJ24-1991-1.B10'),'QB1AJ24-1991-2.h6'+'QB1AJ24-1991-1.H'-'QB1AJ24-1991-1.h1'?,1,0,0,?0,1,0),
QB1AJ24-1991-11('QB1AJ24-1991-1.l1'-('QB1AJ24-1991-2.b'/2-'QB1AJ24-1991-2.b12'+'QB1AJ24-1991-11.L'-'QB1AJ24-1991-11.l'),'QB1AJ24-1991-1.B'/2-('QB1AJ24-1991-1.B11'+'QB1AJ24-1991-1.B13'-'QB1AJ24-1991-1.B10'),'QB1AJ24-1991-2.h6'+'QB1AJ24-1991-1.H'-'QB1AJ24-1991-1.h1'?,-1,0,0,?0,-1,0),
QB1AJ24-1991-12('QB1AJ24-1991-1.l1'+S/2+0.5,'QB1AJ24-1991-1.B'/2-('QB1AJ24-1991-1.B11'+'QB1AJ24-1991-1.B13'-'QB1AJ24-1991-1.B10'),'QB1AJ24-1991-2.h6'+'QB1AJ24-1991-1.H'-'QB1AJ24-1991-1.h1'?,0,0,-1,?0,1,0),
QB1AJ24-1991-12('QB1AJ24-1991-1.l1'-S/2-1.5,'QB1AJ24-1991-1.B'/2-('QB1AJ24-1991-1.B11'+'QB1AJ24-1991-1.B13'-'QB1AJ24-1991-1.B10'),'QB1AJ24-1991-2.h6'+'QB1AJ24-1991-1.H'-'QB1AJ24-1991-1.h1'?,0,0,1,?0,1,0),
QB1AJ24-1991-13('QB1AJ24-1991-1.l11'+'QB1AJ24-1991-1.l12'/2,'QB1AJ24-1991-1.B'/2-'QB1AJ24-1991-1.B2','QB1AJ24-1991-1.H'?,0,1,0,?-1,0,0),
QB1AJ24-1991-13('QB1AJ24-1991-1.l'-'QB1AJ24-1991-1.l11'-'QB1AJ24-1991-1.l12'/2,'QB1AJ24-1991-1.B'/2-'QB1AJ24-1991-1.B2'-'QB1AJ24-1991-1.B1','QB1AJ24-1991-1.H'?,0,-1,0,?1,0,0),
QB1AJ24-1991-13('QB1AJ24-1991-1.l11'+'QB1AJ24-1991-1.l12'/2,'QB1AJ24-1991-1.B'/2-'QB1AJ24-1991-1.B2'-'QB1AJ24-1991-1.B1','QB1AJ24-1991-1.H'?,0,-1,0,?1,0,0),
QB1AJ24-1991-13('QB1AJ24-1991-1.l'-'QB1AJ24-1991-1.l11'-'QB1AJ24-1991-1.l12'/2,'QB1AJ24-1991-1.B'/2-'QB1AJ24-1991-1.B2','QB1AJ24-1991-1.H'?,0,1,0,?-1,0,0);
EDIT:;
CONSTRUCT:?;
BASE:
0,0,0,1,0,0,0,1,0;
POSITION:;
Revision:1991;
Term: with the vee-block drill jig that centers;
Definition: standardization section;
Technology:;
Source:Made;//Bought,Made
ICON:;
NOTE:1, slide block 3 and 10 are done evenly to move on screw rod 8, do not have and wave and stagnation behavior.The circle 12 of obturaging should closely touch lining 11.2, this drill jig is used for the machining hole position on same center line, and radius r is from 5 ~ 20, the part of hole central moment to 115; Like the vee-block and the support plate of design special, can enlarge the usable range of drill jig, can process more kinds of parts.3, technical conditions: press HB457-87.
Claims (3)
1. the three-dimensional semantic model of expanding of tool standard part is characterized in that: comprise following characteristic in the semantic model: 1) specification framework; 2) name structure in; 3) process conditions; 4) external parameter; 5) inquiry automatically; 6) with reference to plain; 7) parameter; 8) shape unit; 9) target benchmark;
The BNF of this semantic model is defined as:
< standard component >: :=< type >; < specification framework >; < interior name structure >; < input table >;
< outer ginseng table >; < joining the formula table outward >; < joining the initial value table outward >;
< querying condition >; < with reference to plain table >; { < attribute list >;
< parameter list >; < shape unit table >; < edit commands table >;
< shape expression formula >; < element benchmark >; < target benchmark >;
< target benchmark formula >; < explanation >; < component attributes >.
2. the three-dimensional semantic model of expanding of tool standard part according to claim 1, it is characterized in that: the BNF definition list of described < specification framework>is shown:
< specification framework >: :=SizeConstruct: [< single structure>{, < single structure>}];
< single structure >: :=[A|B|C] [M] < attribute>[' < precision attribute>']
X < attribute>[' < precision attribute>'];
The plurality of specifications structure be can define simultaneously, type letter, parameter attribute and precision attribute etc. comprised in every kind of structure simultaneously;
Through the definition of < interior name structure >, name form when having stipulated that standard component calls;
Described process conditions are according to defined prompting in < input table >, and mutual selection standard spare mounting process condition utilizes these conditions to select the standard component of specific standard automatically, and realize the automatic location and the installation of standard component;
Described external parameter has defined < outer ginseng table >, < joining the formula table outward>and model units such as < joining the initial value table outward>respectively; Wherein list in detail in < outer ginseng table>certain standard component call and install in each required external parameter; Utilize these external parameters to define the automatic querying condition of standard component, realize the automatic inquiry of standard component;
Described automatic inquiry is the querying condition that in < querying condition >, has defined standard component, in the standard component invoked procedure, through the judgement to these conditions, confirms the concrete specification of the standard component that satisfies condition automatically, has realized calling automatically of standard component;
Described is in < with reference to plain table >, to have defined a series of assisted geometric elements with reference to element, comprises point, line and face etc., in follow-up shape unit and benchmark definition, can directly utilize these elements, thereby simplify the definition procedure of unit and benchmark;
Described values of parameters or monodrome or series of values or successive value or form value;
" self-defined characteristic ", " model file " and types such as " standard components " in the described shape unit, have been increased;
Described target benchmark can direct given reference component and calculating formula thereof, and definition component object.
3. a tool standard part three-dimensional as claimed in claim 1 is expanded semantic model, and its definition and compilation process are following: 1) decompose the three-dimensional structure of standard component, confirm its formed shape unit and characterising parameter thereof; 2) confirm the design coordinate system of each element class shape unit; 3) calculate the elements of a fix system of shape unit in his father's part; 4) according to the model structure syntax, establishment model text; 5) use the supervisory routine that matches with model, debugging and modification model file.
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| CN2012100589341A CN102637220A (en) | 2012-03-08 | 2012-03-08 | Three-dimensional expansion semantic model of tool standard part |
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| CN2012100589341A CN102637220A (en) | 2012-03-08 | 2012-03-08 | Three-dimensional expansion semantic model of tool standard part |
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Cited By (1)
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| CN107256009A (en) * | 2017-06-30 | 2017-10-17 | 武汉理工大学 | A kind of Digital product model Intelligent assembly system based on deep learning |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107256009A (en) * | 2017-06-30 | 2017-10-17 | 武汉理工大学 | A kind of Digital product model Intelligent assembly system based on deep learning |
| CN107256009B (en) * | 2017-06-30 | 2019-08-02 | 武汉理工大学 | A kind of Digital product model Intelligent assembly system based on deep learning |
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