CN105930612B - A method of detection assembly engineering drawing size marking integrality - Google Patents
A method of detection assembly engineering drawing size marking integrality Download PDFInfo
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- CN105930612B CN105930612B CN201610304014.1A CN201610304014A CN105930612B CN 105930612 B CN105930612 B CN 105930612B CN 201610304014 A CN201610304014 A CN 201610304014A CN 105930612 B CN105930612 B CN 105930612B
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Abstract
The present invention provides a kind of methods for detecting assembly engineering drawing size marking integrality, it is intended to solve the dimensioning omitted in engineering drawing, it is not easy to the problem of being found.A method of detection assembly engineering drawing size marking integrality is detected using following steps: numerical value being constrained and is compared with the dimensioning of engineering drawing, is searched and is constrained consistent dimensioning with the presence or absence of with numerical value in engineering drawing；It searches whether to constrain mapping relations with the presence of dimensioning and numerical value in engineering drawing；Indicate numerical value constraint；Each numerical value constraint of component threedimensional model is detected according to above-mentioned step, to the last a numerical value constraint detection terminates.The present invention can be automaticly inspected to omit with the presence or absence of dimensioning, saves manpower, avoids size omission, alleviates designer's burden, offers convenience to design, processing and later period drawing standardization.
Description
Technical field
The present invention relates to engineering drawing dimensionings with the presence or absence of the detection method more particularly to a kind of detection assembly omitted
The method of engineering drawing size marking integrality.
Background technique
In mechanical three-dimensional entity modeling technology, three-dimensional entity model is most complete geometry mould used in CAD system
Type type, it contains the necessary geological information in side and surface institute and topological relation of complete descriptive model.Three-dimensional entity model with
Its engineering drawing and be total correlation with reference to its assembly, to model modification can be reacted to automatically associated engineering drawing and
In assembly；Equally, the modification of engineering drawing and assembly can be also automatically reflected in model.Just because of above-mentioned technology is deposited
Making it possible the integrality for detecting part or assembly engineering size marking.
In Design of Mechanical Product, in the design idea of assembly body three-dimensional models and the expression unanimous circumstances of engineering drawing
Under, it can almost be mitigated significantly with the size marking (except complexity mark is artificially marked with the later period) of one-key operation component engineering drawing
The burden of designer, still, on a small quantity or even if the dimensioning of an omission will be to design, processing and later period engineering drawing
Standardization brings puzzlement.
Assembly is made of many parts, and in assembling process, components are (comprising part and than its rank in assembly
Lower curtate part) between rigging position relationship be all to be completed by Constraints driven, constraint be all artificially defined or Dimension Drive, if zero
Component is completely defined by constraint, then assembly body three-dimensional models are converted into engineering drawing, finally makes engineering drawing automatic marking ruler
Very little or artificial dimensioning.But will appear the problem of size marking is omitted in this way, it can be to design, processing and later period engineering drawing
Standardization brings puzzlement.Whether omitted using manual inspection with the presence or absence of dimensioning at present, for containing a large amount of dimensionings
Engineering drawing, not only heavy workload, but also be manually difficult to check and.
Summary of the invention
The present invention provides a kind of methods for detecting assembly engineering drawing size marking integrality, it is intended to solve in engineering drawing
The dimensioning of omission, it is not easy to the problem of finding.
In order to solve the above technical problems, the invention is realized by the following technical scheme: a kind of detection assembly engineering drawing
The threedimensional model of the method for size marking integrality, assembly is completely defined by constraint, and constraint includes that numerical value constrains, numerical value
Whether constraint includes distance restraint and angle restriction, be marked in engineering drawing to the constraint of each numerical value of three-dimensional entire assembly model
Size Expressing comes out, and is detected using following steps:
A, numerical value is constrained and is compared with the dimensioning of engineering drawing, searching whether there is with numerical value about in engineering drawing
The consistent dimensioning of beam；If it exists, then the detection of numerical value constraint is terminated；If it does not exist, B is entered step；
B, it searches whether to constrain mapping relations with the presence of dimensioning and numerical value in engineering drawing；If it exists, then to the number
The detection of value constraint terminates；If it does not exist, then C is entered step；It is constrained for the same numerical value, has mapping relations with numerical value constraint
Dimensioning and constrain consistent dimensioning with numerical value and can be replaced mutually expression in engineering drawing；
C, mark numerical value constraint then terminates numerical value constraint detection；
Each numerical value constraint of threedimensional model is detected according to above-mentioned step, to the last a numerical value constraint detection knot
Beam.
Further, threedimensional model is imported in engineering module, while forms mapping relations module in calculator memory,
The mapping relations module includes numerical value constraint and there are the dimensionings of mapping relations with numerical value constraint.
Further, each numerical value constraint includes number and data comprising number and data, each dimensioning；In the presence of
Dimensioning and numerical value the constraint number of concord are identical.
Further, the numerical value constraint of three-dimensional part model is stored in two-dimensional array A2, k(k) in, wherein one-dimension storage
Number, the second dimension storing data；Wherein 2 representation dimension, k indicate the item number of numerical value constraint；Engineering drawing dimensioning is stored in
Two-dimensional array B2, k 'In (k ')；Wherein one-dimension storage is numbered, the second dimension storing data；Wherein 2 representation dimension, k ' expression mark
The item number of size；In step, for array A2, k(k) each numerical value constraint in, in array B2, k '(k ') is looked into one by one
It looks for and constrains consistent dimensioning with the presence or absence of with numerical value.
Further, it in step B, searches in engineering drawing with the presence or absence of the dimensioning for having mapping relations with numerical value constraint；
If it exists, by B2, k 'There is the dimensioning of mapping relations to replace in (k ') and constrains consistent dimensioning with numerical value；Then
From step B return step A.
Further, after having detected all numerical value constraints, warning window is generated；The detection of numerical value constraint enters step if it exists
Rapid C then shows the numerical value constraint for entering step C in warning window；The detection of numerical value constraint enters step if it does not exist
C then shows exhaustive size marking in warning window.Convenient for intuitively judging and searching the dimensioning of omission.
Compared with prior art the invention has the advantages that passing through the numerical value constraint of threedimensional model and engineering drawing in the present invention
Dimensioning is compared, to search the omission that whether there is dimensioning in engineering drawing；It can be replaced by mapping relationship searching
The dimensioning in generation can improve lookup precision to avoid erroneous judgement.The present invention may be implemented to automaticly inspect with the presence or absence of label ruler
The problem of very little omission, saves manpower, avoids size omission, alleviates designer's burden, to design, processing and later period figure
Paper standardization offers convenience.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is flow chart of the invention.
Specific embodiment
Refering to fig. 1, A is array A2, k(k) write a Chinese character in simplified form, B are array B2, k '(k's ') writes a Chinese character in simplified form.Constraint include distance, angle,
It is overlapped, is parallel, vertical and tangent etc..Distance and angle are mainly marked in the engineering drawing of assembly, therefore only in assembly
Distance and angle are detected, and distance and angle are referred to as numerical value constraint in the present invention.One kind being generated to detection from threedimensional model
The method of engineering drawing dimensioning integrality, mainly comprises the steps that
Step 1: three-dimensional modeling is carried out with Three-dimensional Design Software, by 3 d part Model Mounting at assembly.Pass through constraint
Fully defining i.e. Complete Bind is carried out to assembly body three-dimensional models；Each distance or angle is corresponding with a number and data,
Data refer to the data of size；The distance of the threedimensional model of assembly and angle are stored to two-dimensional array A2, k(k) in,
In one-dimension storage number, second dimension storing data；Wherein 2 representation dimension, k indicate the item number of constraint.
Step 2: the threedimensional model of assembly is imported in engineering module, while mapping is formed in calculator memory
Relationship module, the mapping relations module includes numerical value constraint and there are the dimensionings of mapping relations with numerical value constraint.
Step 3: carrying out size marking to two-dimensional engineering graphic in engineering module；The mark of this step is using in engineering drawing
A key labeling module, generate one key of size marking, or artificial mark one by one gets on.After the completion of mark, all
Engineering drawing dimensioning storage B into two-dimensional array2, k '(k′)；Wherein one-dimension storage is numbered, the second dimension storing data；Wherein
2 representation dimensions, the item number of k ' expression dimensioning.
Step 4: each numerical value constraint to component threedimensional model is detected using following steps:
A, numerical value is constrained and is compared with the dimensioning of two-dimensional engineering graphic: for array A2, k(k) each numerical value in
Constraint, in array B2, k '(k '), which is searched whether to exist one by one, constrains consistent dimensioning with numerical value；If it exists, then to this
The detection of numerical value constraint terminates；If it does not exist, B is entered step.Each numerical value constraint is comprising number and data, each label ruler
Very little includes number and data；There are the dimensioning of concord number and numerical value constrain number it is identical, data are also identical.
B, it by mapping relations module, searches in two-dimensional engineering graphic with the presence or absence of the mark for having mapping relations with numerical value constraint
Dimensioning.If it exists, by B2, k 'There is the dimensioning of mapping relations to replace in (k ') and constrains consistent label ruler with numerical value
It is very little；Then from step B return step A.If it does not exist, then C is entered step.It is constrained for the same numerical value, there is mapping to close with it
The dimensioning of system and be the dimensioning that can be replaced mutually in two-dimensional engineering graphic with its consistent dimensioning.
C, mark numerical value constraint then terminates numerical value constraint detection.
Circulation step A to step C is constrained to each numerical value, to the last a numerical value constraint detection terminates.
After having detected all numerical value constraints, warning window is generated；The detection of numerical value constraint enters step C if it exists, then
The numerical value constraint for entering step C is shown in warning window；The detection of numerical value constraint enters step C if it does not exist, then exists
It warns and shows exhaustive in window.
In the present invention, the threedimensional model of assembly be constrained by numerical value it is fully defining to assemble up, as long as
Comprising constraining completely the same dimensioning with numerical value in two-dimensional engineering graphic dimensioning, then just being omitted without size.In addition,
The mask method more than one of some sizes, some dimensionings and numerical value constraint are inconsistent, but constrain with numerical value and there is mapping
Relationship, that is, the dimensioning that there are mapping relations, which can be replaced, constrains consistent dimensioning with numerical value, can using mapping block
To search the dimensioning substituted by other notation methods, so as to avoid judging by accident.It constrains, lacks and number for some numerical value
Value constrains consistent dimensioning and lacks that there are the dimensionings of mapping relations with numerical value constraint, then the something lost of dimensioning occurs
Leakage.
Above is only a specific embodiment of the present invention, but technical characteristic of the invention is not limited thereto, Ren Heben
Within the field of the present invention, made changes or modifications all cover within the scope of the patent of the present invention the technical staff in field.
Claims (5)
1. the threedimensional model of a kind of method for detecting assembly engineering drawing size marking integrality, assembly is complete by constraining
Definition, constraint includes that numerical value constrains, it is characterized in that: whether each numerical value constraint to threedimensional model is marked ruler in engineering drawing
It is very little to show, it is detected using following steps:
A, numerical value is constrained and is compared with the dimensioning of engineering drawing, searched and constrain one with the presence or absence of with numerical value in engineering drawing
The dimensioning of cause；If it exists, then the detection of numerical value constraint is terminated；If it does not exist, B is entered step；
B, it searches whether to constrain mapping relations with the presence of dimensioning and numerical value in engineering drawing；If it exists, then to the numerical value about
The detection of beam terminates；If it does not exist, then C is entered step；It is constrained for the same numerical value, there is the mark of mapping relations with numerical value constraint
Dimensioning and consistent dimensioning is constrained with numerical value can be replaced mutually expression in engineering drawing；Each numerical value constraint is wrapped
It include number and data containing number and data, each dimensioning；There are the dimensionings of concord and numerical value constraint to compile
It is number identical；
C, mark numerical value constraint then terminates numerical value constraint detection；
Each numerical value constraint of threedimensional model is detected according to above-mentioned step, to the last a numerical value constraint detection terminates.
2. a kind of method for detecting assembly engineering drawing size marking integrality according to claim 1, it is characterized in that: will
Three-dimensional entire assembly model imports in engineering module, while mapping relations module is formed in calculator memory, and the mapping is closed
It is that module includes numerical value constraint and there are the dimensionings of mapping relations with numerical value constraint.
3. a kind of method for detecting assembly engineering drawing size marking integrality according to claim 2, it is characterized in that: will
The numerical value constraint of three-dimensional part model is stored in two-dimensional array A2,k(k) in, wherein one-dimension storage is numbered, two-dimensional storage number
According to；Wherein 2 representation dimension, k indicate the item number of numerical value constraint；
Engineering drawing dimensioning is stored in two-dimensional array B2,k′In (k ')；Wherein one-dimension storage is numbered, two-dimensional storage number
According to；Wherein 2 representation dimension, the item number of k ' expression dimensioning；
In step, for array A2,k(k) each numerical value constraint in, in array B2,k′(k ') is searched whether to deposit one by one
Consistent dimensioning is being constrained with numerical value.
4. a kind of method for detecting assembly engineering drawing size marking integrality according to claim 3, it is characterized in that:
Step B is searched in engineering drawing with the presence or absence of the dimensioning for having mapping relations with numerical value constraint；If it exists, by B2,k′(k′)
In have that the dimensioning of mapping relations replaces with and numerical value constrains consistent dimensioning；Then from step B return step A.
5. a kind of method for detecting assembly engineering drawing size marking integrality according to claim 1, it is characterized in that:
After having detected all numerical value constraints, warning window is generated；The detection of numerical value constraint enters step C if it exists, then in warning window
Show the numerical value constraint for entering step C；The detection of numerical value constraint enters step C if it does not exist, then shows in warning window
Show exhaustive size marking.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101446999A (en) * | 2008-12-24 | 2009-06-03 | 南京大学 | Automatic checking method for dimension line marking error in engineering drawing |
| CN103324794A (en) * | 2013-06-17 | 2013-09-25 | 杭州电子科技大学 | Method for verifying three-dimensional tolerance marking correctness |
| CN104036097A (en) * | 2014-06-27 | 2014-09-10 | 东南大学 | Three-dimensional missing size mark finding method based on difference track |
| CN104050386A (en) * | 2014-06-27 | 2014-09-17 | 东南大学 | Method for detection of three-dimensional size completeness based on rigid body recognition |
-
2016
- 2016-05-09 CN CN201610304014.1A patent/CN105930612B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101446999A (en) * | 2008-12-24 | 2009-06-03 | 南京大学 | Automatic checking method for dimension line marking error in engineering drawing |
| CN103324794A (en) * | 2013-06-17 | 2013-09-25 | 杭州电子科技大学 | Method for verifying three-dimensional tolerance marking correctness |
| CN104036097A (en) * | 2014-06-27 | 2014-09-10 | 东南大学 | Three-dimensional missing size mark finding method based on difference track |
| CN104050386A (en) * | 2014-06-27 | 2014-09-17 | 东南大学 | Method for detection of three-dimensional size completeness based on rigid body recognition |
Non-Patent Citations (1)
| Title |
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| 利用刚性体识别的三维尺寸标注完备性检查;程亚龙 等;《计算机辅助设计与图形学学报》;20150215;第27卷(第2期);第351-361页 |
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Effective date of registration: 20220621 Address after: 321302 No. 8, Sifang Road, Chengxi New District, Yongkang City, Jinhua City, Zhejiang Province Patentee after: ZHEJIANG SIFANG Co.,Ltd. Address before: 321315 No. 57, YONGTUO Road, Yongkang City, Jinhua City, Zhejiang Province Patentee before: ZHEJIANG SIFANG Group Corp. |