CN106934091A - A kind of method that size marking is generated for MBD operations model - Google Patents
A kind of method that size marking is generated for MBD operations model Download PDFInfo
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- CN106934091A CN106934091A CN201710013716.9A CN201710013716A CN106934091A CN 106934091 A CN106934091 A CN 106934091A CN 201710013716 A CN201710013716 A CN 201710013716A CN 106934091 A CN106934091 A CN 106934091A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/10—Constructive solid geometry [CSG] using solid primitives, e.g. cylinders, cubes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/06—Multi-objective optimisation, e.g. Pareto optimisation using simulated annealing [SA], ant colony algorithms or genetic algorithms [GA]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/18—Manufacturability analysis or optimisation for manufacturability
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Abstract
The present invention provides a kind of method that size marking is generated for MBD operations model, using the part model based on MBD and the integrated information of operation model come the size marking on generation process model, the related markup information obtained to operation model by part model realizes the generation of operation moulded dimension mark.Thus method marks out the operation model for coming and is consistent with former Element Design model on the pattern and expression way of size marking, and the pattern of automatic marking not only increases operating efficiency, and more can simple and clearly express the technique information of part.
Description
Technical field
The present invention relates to Computer-aided Design Technology field, more particularly, to a kind of for the generation of MBD operations model
The method of size marking.
Background technology
MBD is, based on model, to refer to being integrated with accessory size, tolerance, mark, table in the threedimensional model of part
Complete to part, unique describing mode of the information such as face quality.Current product has been turned into as design result output using MBD models
One of product designer trends.
Operation model be formed after operation processing with the complete process information that this operation can be instructed to process half into
Product model, is the important references for instructing processing and manufacturing and generation numerical control code.Dimension information determine model shape size and
Position relationship between geometric element, is one of essential information that operation model is included.
Current operation moulded dimension mark is generally by virtue of experience marked on operation model by technological design personnel and completed, work
Work amount is big, and efficiency is low, easily error.
The content of the invention
Operation moulded dimension mark is primarily used to determine the shape size and position relationship of machined surface on operation model.This
Size marking on a little size markings and Element Design model has a very big uniformity, and the size marking in designing a model
There is very big reasonability at aspects such as mark species, pattern, position, view, notation methods.Therefore, using on part model
Size marking information, replicating size marking automatically according to operation mould processing face can effectively solve the above problems.
According to an aspect of the invention, it is proposed that a kind of method that size marking is generated for MBD operations model, including:
S1, according to operation model to be marked and its technical papers, obtains the machined surface of current process；
S2, all size markings on traversal Element Design model obtain needing mark using dimensioning screening rule
Size；
S3, the size for needing mark is copied on the operation model；
S4, is adjusted using dimensioning regulation rule to copying to the size marking on the operation model；
S5, repeat S3 and S4, until complete the size of mark in need duplication and adjustment.
The present invention proposes a kind of method that size marking is generated for MBD operations model, has the advantages that：Thus
Method marks out the operation model for coming and is consistent with former Element Design model on the pattern and expression way of size marking, from
The pattern of dynamic mark not only increases operating efficiency, and more can simple and clearly express the technique information of part.
Brief description of the drawings
More fully understand to have to the present invention, below in conjunction with the accompanying drawings, to of the invention a kind of for the life of MBD operations model
Into the method for size marking, wherein：
Fig. 1 is the overall flow of the method for generating size marking in a specific embodiment of the invention with MBD operations model
Schematic diagram；
Fig. 2 is the method part model for generating size marking in a specific embodiment of the invention for MBD operations model
Effect displaying figure；
Fig. 3 is the method part model for generating size marking in a specific embodiment of the invention for MBD operations model
Effect displaying figure；
Fig. 4 is the method part model for generating size marking in a specific embodiment of the invention for MBD operations model
Effect displaying figure；
Fig. 5 is the method part model for generating size marking in a specific embodiment of the invention for MBD operations model
Effect displaying figure.
Specific embodiment
Below in conjunction with the accompanying drawings, the method specific embodiment that size marking is generated for MBD operations model a kind of to the present invention
Illustrate.
MBD is, based on model, to refer to being integrated with accessory size, tolerance, mark, table in the threedimensional model of part
Complete to part, unique describing mode of the information such as face quality.Current product has been turned into as design result output using MBD models
One of product designer trends.
Operation model be formed after operation processing with the complete process information that this operation can be instructed to process half into
Product model, is the important references for instructing processing and manufacturing and generation numerical control code.Dimension information determine model shape size and
Position relationship between geometric element, is one of essential information that operation model is included.
Operation moulded dimension mark is primarily used to determine the shape size and position relationship of machined surface on operation model.This
Size marking on a little size markings and Element Design model has a very big uniformity, and the size marking in designing a model
There is very big reasonability at aspects such as mark species, pattern, position, view, notation methods.Therefore, using on part model
Size marking information, replicating size marking automatically according to operation mould processing face can effectively solve the above problems.
Here duplication is not simply to copy word by word, but according to operation mould processing face according to certain Rules Filtering size,
Copied on operation model after adjusting basic size and tolerance further according to technological requirement, and ensure other letters in size marking
Breath is constant.
Current operation moulded dimension mark is generally by virtue of experience marked on operation model by technological design personnel and completed, work
Work amount is big, and efficiency is low, easily error.
Operation moulded dimension mark is primarily used to determine the shape size and position relationship of machined surface on operation model.This
Size marking on a little size markings and Element Design model has a very big uniformity, and the size marking in designing a model
There is very big reasonability at aspects such as mark species, pattern, position, view, notation methods.Therefore, using on part model
Size marking information, replicating size marking automatically according to operation mould processing face can effectively solve the above problems.
Here duplication is not simply to copy word by word, but according to operation model current demand according to certain Rules Filtering chi
It is very little, copied on operation model after adjusting basic size and tolerance further according to technological requirement, and its for ensureing in size marking
His Information invariability.
Such as Fig. 1, in a specific embodiment of the invention, show a kind of for MBD operations model generation size marking
Method overall flow schematic diagram.Generally, including：S1, according to operation model to be marked and its technical papers, obtains current process
Machined surface；
S2, all size markings on traversal Element Design model obtain needing mark using dimensioning screening rule
Size；
S3, the size for needing mark is copied on the operation model；
S4, is adjusted using dimensioning regulation rule to copying to the size marking on the operation model；
S5, repeat S3 and S4, until complete the size of mark in need duplication and adjustment.
In another specific embodiment of the invention, a kind of method that size marking is generated for MBD operations model is described
Dimensioning screening rule also includes：Filter out the size marking for meeting at least one of three below condition condition：
Condition 1, all mark faces of the size marking are the machined surface of current process on Element Design model；For example certain
Two accoles of size are two planes, and current process just needs to process the two planes, then mark；
Condition 2, a mark face of the size marking is the machined surface in current process on Element Design model, in addition one
Individual mark face be before in operation machined mistake machined surface；
Condition 3, a mark face of the size marking is the machined surface in current process on Element Design model, in addition one
Individual mark face is untreated black skin, and current process model is cuboid and the dimension constraint mode shape profile pole
Extreme position, then need to be labeled on operation model.
In another specific embodiment of the invention, a kind of method that size marking is generated for MBD operations model is described
Dimensioning regulation rule also includes：The basic size of the balance information adjustment size marking calculated during according to technological design makes
Include allowance.Size marking in MBD Element Design models is not comprising allowance, it is necessary to according to current process model
Allowance is adjusted.Can according to technological design when calculate balance information adjustment size marking basic size be allowed to
Comprising allowance.
In another specific embodiment of the invention, a kind of method that size marking is generated for MBD operations model is described
Dimensioning regulation rule also includes：The size of the dimensional discrepancy information adjustment size marking calculated during according to technological design is inclined
Difference.Dimensional discrepancy in MBD Element Design models is the dimensional discrepancy after part completion, it is necessary to be adjusted according to technical papers requirement
It is the dimensional discrepancy of current process.Can according to technological design when the dimensional discrepancy information that calculates adjust the size of size marking
Deviation.
In another specific embodiment of the invention, a kind of method that size marking is generated for MBD operations model is described
Size marking information comprises at least the one kind in following information：The numbering of size marking；Dimension Types；The accole of size：According to
Attached body numbering, type, direction, position；The labeling position of size；Size lead start position and lead direction；Dimensional accuracy；It is attached
Plus word and upper lower deviation：Content, pattern, font, font size, inclination, spacing, color, position；Dimension Style；Arrow sample
Formula：Shape, size, color.
In another specific embodiment of the invention, a kind of method that size marking is generated for MBD operations model.Below
It is an example for realizing this patent in the form of software by UG and its secondary development.
The premise of this example is：With complete design information (including full-size markup information) based on MBD three-dimensionals zero
Part designs a model, all operation models to be marked and correspondingly technical papers.
The purpose that the present embodiment reaches：For each processing object on operation model, can be with reference to part model certainly
Dynamic correct, the sufficient size marking of generation, the size marking for being generated with part model on size marking have it is identical
Species, pattern, position, view, notation methods and added text explanation and meet more than the processing of current manufacturing procedure requirement
Amount and dimensional discrepancy.
This patent method is realized based on UG and its secondary development in the form of software：
The embodiment of the present invention is implemented process and is mainly completed by three steps：Current process machining information is read,
Part model markup information is screened and treatment, the matching of operation model information and mark.
Read current process machining information
1., according to technique information, the part processing object that currently processing sequence is processed is obtained upper and lower with what processing to be reached
Deviation.
Part model markup information reads and treatment
2. size marking information is obtained.Part model is opened, the overall dimension mark on traversal part model is obtained each
The full detail of individual size marking, numbering (ID), Dimension Types, the accole of size including the size marking (are depended on
Body numbering, type, direction, position etc.), the labeling position of size, size lead start position and lead direction, dimensional accuracy,
Added text and upper lower deviation (content, pattern, font, font size, inclination, spacing, color, position etc.), Dimension Style, arrow
The information such as head pattern (shape, size, color etc.), added text explanation.
3. pair size marking accole is changed.The actual semanteme of size marking is exactly the pass between the two elements
System, such as distance relation, angular relationship etc..Sometimes the accole of size marking is with the semantic Points And lines of weak technique, its chi
Very little markup information expression is relatively obscured, and should be converted to accordingly with the face that stronger technique is semantic the accole of these sizes.Though
The accole of right some sizes is axis, center line with strong technique semanteme etc., but for the matching process after simplification,
The accole of these sizes should be changed into corresponding face.
4., according to the machining feature obtained in step 1, the whole searched associated by this feature in part model adds object.
Whether all size markings in the part model obtained in traversal step 3, each size marking is screened according to screening rule
Should be marked out on current process model, the size that record screening is obtained.
Operation model information is matched and mark
5. all geomeries and the location dimension for obtaining are screened in traversal step 4, for each shape size, in operation
The size is found on model and depends on corresponding surface of the face on operation model.Using corresponding surface as size accole, according in step 2
It is the Dimension Types of the size for obtaining, the labeling position of size, size lead start position and lead direction, dimensional accuracy, attached
Plus word and upper lower deviation (content, pattern, font, font size, inclination, spacing, color, position etc.), Dimension Style, arrow
The information such as pattern (shape, size, color etc.), generate corresponding new size on operation model, while will according to technical papers
Ask setting and adjust every dimensional tolerance of size marking (because the relation between the geometric element in UG operation models has been wrapped
Contain allowance, the size marking for generating here without adjusting allowance problem again), until all sizes for screening
Mark is all marked out on operation model, you can realize the present invention.
This patent is realized by NX second development systems NXOpen.Programmed by the secondary development to NX, according to this patent
Method completes program, and effect is as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention is by appended claims and its equivalent limits.
Claims (5)
1. it is a kind of for MBD operations model generate size marking method, it is characterised in that comprise the following steps：
S1, according to operation model to be marked and its technical papers, obtains the machined surface of current process；
S2, all size markings on traversal Element Design model, obtains needing the chi of mark using dimensioning screening rule
It is very little；
S3, the size for needing mark is copied on the operation model；
S4, is adjusted using dimensioning regulation rule to copying to the size marking on the operation model；
S5, repeat S3 and S4, until complete the size of mark in need duplication and adjustment.
2. the method for claim 1, it is characterised in that the dimensioning screening rule also includes：Filter out satisfaction
The size marking of at least one of three below condition condition,
Condition 1, all mark faces of the size marking are the machined surface of current process on Element Design model；
Condition 2, a mark face of the size marking is the machined surface in current process on Element Design model, another mark
Note face be before in operation machined mistake machined surface；
Condition 3, a mark face of the size marking is the machined surface in current process on Element Design model, another mark
Note face is untreated black skin, and current process model is cuboid and dimension constraint mode shape outer extremitieies position
Put, then need to be labeled on operation model.
3. the method for claim 1, it is characterised in that the dimensioning regulation rule also includes：Set according to technique
The basic size of the balance information adjustment size marking that timing is calculated is allowed to comprising allowance.
4. the method for claim 1, it is characterised in that the dimensioning regulation rule also includes：Set according to technique
The dimensional discrepancy information that timing is calculated adjusts the dimensional discrepancy of size marking.
5. method as claimed in claim 3, it is characterised in that the size marking information comprises at least in following information
Kind：The numbering of size marking；Dimension Types；The accole of size：Accole numbering, type, direction, position；The mark of size
Position；Size lead start position and lead direction；Dimensional accuracy；Added text and upper lower deviation：Content, pattern, font, word
Number, inclination, spacing, color, position；Dimension Style；Arrow pattern：Shape, size, color.
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Cited By (3)
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| CN107704889A (en) * | 2017-10-30 | 2018-02-16 | 沈阳航空航天大学 | A kind of quick mask method of MBD Model array features towards digital measuring |
| CN111209621A (en) * | 2019-12-31 | 2020-05-29 | 深圳市华阳国际工程设计股份有限公司 | Cross-view dimension marking and copying method, terminal and storage medium |
| CN112906142A (en) * | 2020-07-28 | 2021-06-04 | 成都飞机工业（集团）有限责任公司 | Design and processing method suitable for extremely light mass putting model |
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