CN110148197B - Adaptive adjustment method for dimension marking of two-dimensional engineering drawing - Google Patents
Adaptive adjustment method for dimension marking of two-dimensional engineering drawing Download PDFInfo
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Abstract
The invention discloses a size label self-adaptive adjusting method in a two-dimensional engineering drawing, which comprises the following steps: 1) Determining the size label needing to be adjusted; 2) Determining the size of the dimension-adjusting marking distance; 3) And (5) marking the size to be adjusted in position. The method effectively solves the problem of size marking position interference in the two-dimensional engineering drawing which is quickly generated after the variant design, can effectively help the two-dimensional engineering drawing to be quickly and automatically generated, replaces designers to manually adjust the size marking position, shortens the product design period, improves the product design efficiency, and is beneficial to the standardization of the drawing. The method has universality, and the two-dimensional engineering drawing parameterization automatic rapid design based on the engineering drawing template can be used for automatically adjusting the size marking position in the drawing.
Description
Technical Field
The invention relates to the field of two-dimensional engineering drawings, in particular to a size marking self-adaptive adjusting method in a two-dimensional engineering drawing.
Background
In recent years, in the field of mechanical design, although three-dimensional model design is increasingly widely used, two-dimensional engineering drawings are still important bases for final output and production and processing of enterprise product design, and labeling information such as surface roughness, form and position tolerance, matching and size tolerance and the like which can be expressed by the two-dimensional engineering drawings is difficult to express and label by three-dimensional models.
At present, due to technical reasons, when enterprises design products, a mode of coexistence of three-dimensional modeling and a two-dimensional engineering drawing is often adopted. How to quickly obtain a second engineering drawing meeting production requirements according to a three-dimensional model becomes a key technical bottleneck restricting the design efficiency and the design quality of a two-dimensional engineering drawing of an enterprise. Aiming at the situation, a parameterized method is designed for the serial classification of products, so that the standardization degree and the accuracy of drawings can be ensured, the problems of repeated labor, large workload, long time consumption, low efficiency and the like can be effectively solved, and the automatic and rapid drawing of the products of the same series can be realized.
The method realizes the parameterized automatic design of the same series of products, and comprises the following contents: and (3) carrying out parameterization automatic modification on the three-dimensional model and automatically generating a two-dimensional drawing. On the basis of an engineering drawing template, a two-dimensional engineering drawing rapid automatic generation method comprises the following contents: and automatically modifying the three-dimensional model, adaptively adjusting each view in the engineering drawing, and adaptively adjusting the dimension marking of the engineering drawing.
The characteristics of the dimension variation in the Solid works engineering drawing according to the characteristics of the three-dimensional drawing are as follows: marking the size of the deformation characteristic, wherein the numerical value of the deformation characteristic is automatically changed, and the position coordinate is unchanged; marking the size influenced by the deformation characteristics, wherein the position coordinates of the size are changed, and the numerical value is not changed; the dimensioning, which is not affected by the change in the characteristic, remains unchanged.
At present, the problems encountered by dimension marking in a two-dimensional engineering drawing during rapid and automatic generation of the drawing are mainly divided into two situations: (1) As shown in fig. 1 and 2, the outer diameter of the separating pull ring of the FD430 clutch is increased from 136mm to 150mm from fig. 1 to 2, and the other parts are kept unchanged, so that the local characteristic dimension mark and the outline line are interfered; (2) As shown in figures 1, 3, the breakaway tab profile dimensions are unchanged from figure 1 to figure 3, the tab notch increases from 13.5mm to 35mm, and the others remain unchanged, with the modified dimension lines interfering with the other dimension lines unaffected by the feature change. Therefore, in the part outline modification, if the modification size exceeds the reserved length of the template dimension line, dimension marking which is not influenced by feature change interferes with the outline line of the part; in the local feature deformation of the part, the deformation size exceeds the reserved length of the dimension line of the template, and the deformation size marking also interferes with other dimension lines.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a size marking self-adaptive adjusting method in a two-dimensional engineering drawing, which solves the problem of disorder of size marking positions in the automatic generation of the two-dimensional engineering drawing, readjusts the size marking positions which interfere with each other in the two-dimensional engineering drawing and realizes the self-adaptive adjustment of the size marking of the engineering drawing after the product is automatically deformed.
The technical scheme for realizing the purpose of the invention is as follows:
a size marking self-adaptive adjusting method in a two-dimensional engineering drawing comprises the following steps:
1) Determining the size label needing to be adjusted;
2) Determining the size of the dimension-adjusting marking distance;
3) And (5) marking the size to be adjusted in position.
In step 1), the determining of the size label to be adjusted includes the following steps:
1-1) defining an array View (), and obtaining a View View () in the engineering drawing by using a Get View function;
1-2) defining a variable Count, and obtaining the number of 'Display size objects' in the current view by using Get Display Dimension Count ();
1-3) judging whether the value of the Count is equal to the number of size objects in the adjusted view through a judging function, and determining the view to be selected; if the number of the size objects in the Count value and the adjusted view is not equal, the current view is proved not to be the selected view, and then the next view is judged until all the views are judged;
1-4) traversing the dimension labels of all views in the engineering drawing, and determining the dimension label quantity of all views;
1-5) defining a variable Number, setting an initial Number value to be 1, judging whether the Number value is equal to the serial Number of the size label needing to be adjusted by using a cyclic function Number = Number +1, and determining the size label needing to be adjusted; if the Number value is equal to the serial Number of the size-adjusting label, the current size is proved to be the selected size, and the next step is carried out; if the Number value is not equal to the serial Number of the size label needing to be adjusted, the current size is not the selected size, the judgment is finished, and the next size judgment is carried out.
In step 2), the step of determining the size of the labeled distance of the adjusted size is to define a variable Number2 to obtain an input adjusted size value of the modified size, define a constant Number3 as a default size value, and bring in a change function of the position coordinate to obtain a value of the distance to be adjusted.
In step 3), the step of adjusting the position of the size label to be adjusted includes the following steps:
3-1) acquiring the position coordinate of the current size by using a Getposition function under Annotation;
3-2) adjusting the position coordinates of the sizes by utilizing a Solid works quadratic development function SetPosition2 function.
In step 3-1), the change function of the position coordinate and the length dimension marking position coordinate is as follows: setPosition2 (position (0) + (Number 2-Number 3)/1000, position (1) + (Number 2-Number 3)/1000, position (2));
the modification function of the diameter dimension marking position coordinates is as follows: setPosition2 (position (0) + (Number 2-Number 3)/2000, position (1) + (Number 2-Number 3)/2000, position (2));
wherein Number2: input resizing, number3: default size, position (0): x-coordinate, position (1): y-coordinate, position (2): the Z coordinate.
According to the self-adaptive adjusting method for the size marking in the two-dimensional engineering drawing, the problem of size marking position interference in the two-dimensional engineering drawing which is generated quickly after the modified design is effectively solved, the two-dimensional engineering drawing can be generated quickly and automatically effectively, the size marking position is adjusted manually by a designer, the product design period is shortened, the product design efficiency is improved, and the drawing standardization is facilitated. The method has universality, and the method can be used for automatically adjusting the size marking position in the map in the two-dimensional engineering map parameterization automatic rapid design based on the engineering map template.
Drawings
FIG. 1 is a front view of an FD430 clutch release tab;
FIG. 2 is a dimensional marking interference view after separation of a modified tab profile;
FIG. 3 is a dimensional labeling interferogram after modification of a portion of the breakaway tab feature;
FIG. 4 is a flow chart of the present invention;
FIG. 5 is an explanatory diagram of each view in the two-dimensional engineering drawing of the embodiment;
FIG. 6 is an explanatory view of the number of display sizes of each view in the two-dimensional engineering drawing of the embodiment;
FIG. 7 is an explanatory diagram showing the dimension numbers in the embodiment view.
Detailed Description
The invention is further illustrated but not limited by the following figures and examples.
Example (b):
as shown in fig. 4, a method for adaptively adjusting a size label in a two-dimensional engineering drawing includes the following steps:
1) Determining the size label needing to be adjusted, comprising the following steps:
1-1) defining an array View (), and obtaining a View View () in the engineering drawing by using a Get View function;
in the two-dimensional engineering drawing shown in fig. 5, view 1, view 2 and view 3 are obtained, the number of views in the engineering drawing is determined by the complexity of the parts and is not limited to the number of views in the drawing, and the procedure is as follows:
Dim Views( ) As Object
Views = sheet.Get Views
For Each Vi In Views
Display Dimension = Vi.Get Display Dimensions( )
1-2) defining a variable Count, and obtaining the number of 'Display size objects' in the current view by using Get Display Dimension Count ();
as shown in fig. 6, in the two-dimensional engineering drawing, the number of display size objects in the view is obtained, there are 7 display sizes in the view 1, 4 display size objects in the view 2, and 3 display size objects in the view 3, and the number of display size objects in a single view in the engineering drawing is determined by the complexity of the part and is not limited to the number in the view, and the procedure is as follows:
Dim Count As Long
Count = Vi.Get Display Dimension Count( )
1-3) judging whether the value of Count is equal to the number of size objects in the adjusted view through a judging function, and determining the view to be selected; if the value of the Count is not equal to the number of the size objects in the adjusted view, the current view is proved not to be the selected view, and then the next view is judged until all the views are judged;
the view to be selected is determined according to the number of objects of different display sizes in the respective views as in fig. 6.
The procedure is as follows: if Count = 7 Then// view 1 shows a size of 7, i.e. view 1 is selected;
For Each Di In Display Dimension
if Count = 4 Then// select view 2
For Each Di In Display Dimension
If Count = 3 Then// select view 3
For Each Di In Display Dimension
1-4) traversing the size labels of all views in the engineering drawing, and determining the size label quantity of all views;
1-5) defining a variable Number, setting an initial Number value of the Number as 1, judging whether the Number value is equal to the serial Number of the size label needing to be adjusted or not by using a cyclic function Number = Number +1, and determining the size label needing to be adjusted; if the Number value is equal to the serial Number of the size-adjusting label, the current size is proved to be the selected size, and the next step is carried out; if the Number value is not equal to the serial Number of the size label needing to be adjusted, the current size is not the selected size, the judgment is finished, and the next size judgment is carried out.
As shown in FIG. 7, there are 7 display size objects in the view, and 1-7 represent the serial number of the size labels, by which the size object to be adjusted is determined.
2) Determining the size of the distance of the size-adjusting label: defining a variable Number2 to obtain a variable size input adjustment size value, defining a constant Number3 as a default size value, and substituting a change function of a position coordinate to obtain a distance value to be adjusted;
3) The method for adjusting the position of the size label to be adjusted comprises the following steps:
3-1) acquiring the position coordinate of the current size by using a Getposition function under Annotation;
3-2) adjusting the size and position coordinates by utilizing a Solid works quadratic development function SetPosition2 function, wherein the program is as follows:
the procedure is as follows: dim Number As Long
Dim position As Object
Interpretation = di.get interpretation// acquisition size coordinate position
position = Annotation.Getposition（）
Number = 1
Number ++
If Number = 1 Then// select size Number 1
Annotation.SetPosition2（position（0） + (Number2 - Number3) / 1000， position（1） + (Number2 - Number3) / 1000， position（2））
// adjusting/registering the position coordinate of the size position of number 1
···
ElseIf Number = 7 ten selects a size No. 7
Annotation.SetPosition2（position（0） + (Number2 - Number3) / 1000， position（1） + (Number2 - Number3) / 1000， position（2））
// adjusting/registering the position coordinates of the size position of the serial number 7
End If
In step 3-1), the change function of the position coordinate and the length dimension marking position coordinate is as follows: setPosition2 (position (0) + (Number 2-Number 3)/1000, position (1) + (Number 2-Number 3)/1000, position (2));
the modification function of the diameter dimension marking position coordinates is as follows: setPosition2 (position (0) + (Number 2-Number 3)/2000, position (1) + (Number 2-Number 3)/2000, position (2));
wherein Number2: input resizing, number3: default size, position (0): x-coordinate, position (1): y-coordinate, position (2): the Z coordinate.
The above examples are only for clearly explaining the detailed steps of the present invention, and do not limit the generality of the present invention, the present method is a general method, and the position can be adaptively adjusted by the method based on the dimension marking of the Solid works engineering drawing template.
The program is written by using Visual Basic language, and is only used for expressing a use method in more detail, the API function of the Solid works is universal, other languages can be called, and all the invention is not limited to the Visual Basic language.
Claims (1)
1. A size marking self-adaptive adjusting method in a two-dimensional engineering drawing is characterized by comprising the following steps:
1) Determining the size label needing to be adjusted;
2) Determining the size of the dimension-adjusting marking distance;
3) Adjusting the position of the size mark to be adjusted;
in step 1), the determining of the size label to be adjusted includes the following steps:
1-1) defining an array View (), and obtaining a View View () in the engineering drawing by using a Get View function;
1-2) defining a variable Count, and obtaining the number of 'Display size objects' in the current view by using Get Display Dimension Count ();
1-3) judging whether the value of Count is equal to the number of size objects in the adjusted view through a judging function, and determining the view to be selected; if the number of the size objects in the Count value and the adjusted view is not equal, the current view is proved not to be the selected view, and then the next view is judged until all the views are judged;
1-4) traversing the size labels of all views in the engineering drawing, and determining the size label quantity of all views;
1-5) defining a variable Number, setting an initial Number value to be 1, judging whether the Number value is equal to the serial Number of the size label needing to be adjusted by using a cyclic function Number = Number +1, and determining the size label needing to be adjusted; if the Number value is equal to the serial Number of the size label needing to be adjusted, the current size is proved to be the selected size, and the next step is carried out; if the Number value is not equal to the serial Number of the size label needing to be adjusted, the current size is not the selected size, the judgment is finished, and the next size judgment is carried out;
in step 2), the size of the labeled distance of the determined adjusted size is defined as that a variable Number2 obtains a variable size input adjusted size value, a constant Number3 is defined as a default size value, and a change function of a position coordinate is taken in to obtain a value of the distance to be adjusted;
in step 3), the adjusting of the position of the size label to be adjusted includes the following steps:
3-1) acquiring the position coordinate of the current size by using a Getposition function under Annotation;
3-2) adjusting the position coordinates of the sizes by utilizing a Solid works secondary development function SetPosition2 function;
in the step 3-1), the change function of the position coordinate and the length dimension marking position coordinate is as follows: setPosition2 (position (0) + (Number 2-Number 3)/1000, position (1) + (Number 2-Number 3)/1000, position (2));
the change function of the diameter dimension marking position coordinate is as follows: setPosition2 (position (0) + (Number 2-Number 3)/2000, position (1) + (Number 2-Number 3)/2000, position (2));
wherein Number2: input resizing, number3: default size, position (0): x-coordinate, position (1): y-coordinate, position (2): the Z coordinate.
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