CN110503720A - A kind of modeling method that dimensional tolerance is converted to median size automatically - Google Patents
A kind of modeling method that dimensional tolerance is converted to median size automatically Download PDFInfo
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- CN110503720A CN110503720A CN201910830219.7A CN201910830219A CN110503720A CN 110503720 A CN110503720 A CN 110503720A CN 201910830219 A CN201910830219 A CN 201910830219A CN 110503720 A CN110503720 A CN 110503720A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000012360 testing method Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000013461 design Methods 0.000 abstract description 16
- 238000003032 molecular docking Methods 0.000 abstract description 3
- 238000002834 transmittance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
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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
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Abstract
The present invention relates to three-dimensional digitals to manufacture and design field, and in particular to dimensional tolerance is converted to the modeling method of median size by one kind automatically, comprising the following steps: establishes national standard database based on dimensional tolerance national standard data；View, and dimensioning and associated production information are created on threedimensional model；Extract the PMI information of threedimensional model;It imported into national standard database;It retrieved, searched by national standard database, operation and output obtain median size parameter;Intermediate size parameter portion is finally output to the examination and test of products, it is a that three-dimensional median size model is generated by parametric modeling, the production and processing of product is then carried out, repetition modeling is avoided.The present invention improves production efficiency, reduces the amount of labour and error probability, the docking problem that designs and produces of effective solution；Repetition modeling is avoided, and effectively raises technological design efficiency and quality, the consistency of data in assurance model transmittance process.
Description
Technical field
The present invention relates to three-dimensional digitals to manufacture and design field, and in particular to dimensional tolerance is converted to intermediate value automatically by one kind
The modeling method of size.
Background technique
In terms of current situation, three-dimensional digital design and manufacture are the effective ways for establishing powerful product development ability,
But according to the flow diagram of machine-building status current in Fig. 1, at present still from product design to production and processing link
It is docked using two-dimentional drawing, the utilization rate for resulting in the threedimensional model of product design is very low, become the accessory of two-dimentional drawing,
For production for, numerical control programming needs intermediate size model, but on original threedimensional model by modification of dimension at
Dimensional tolerance intermediate value, workload is no less than and models again, but also needs to consult relevant national standard.Based on this, currently,
Many numerical control programming personnel are and to consult dimensional tolerance national standard according to drawing and establish three-dimensional median size model.In
During this, production and processing personnel not only need to consult national standard, but also need artificial calculated tolerances intermediate value, consult mark
Not only workload is huge in quasi- process, but also error-prone.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide one kind, and dimensional tolerance to be converted to median size automatically
Modeling method, this method can effectively improve the utilization rate of threedimensional model, improve production efficiency, reduce the amount of labour and error probability,
It solves the problems, such as to design and produce docking.Specific technical solution is as follows:
A kind of modeling method that dimensional tolerance is converted to median size automatically, comprising the following steps:
S1. national standard database is established based on dimensional tolerance national standard data；
S2. in the design phase, designer creates view, and dimensioning and associated production information on threedimensional model；
S3. in the production phase, technologists extract the PMI(three-dimensional labeling of threedimensional model) information;
S4. it imported into national standard database;
S5. it retrieved, searched by national standard database, operation and output obtain median size parameter;
S6. intermediate size parameter portion is finally output to the examination and test of products, it is a that three-dimensional intermediate value ruler is generated by parametric modeling
Then very little model carries out the production and processing of product, avoid repetition modeling.
Further, the associated production information includes material information.
The present invention replaces manual retrieval by computer generation by establishing national standard database, by material, dimensional tolerance etc.
Output is established dimensional tolerance intermediate value model finally by parametric modeling and is used for numerical control programming and production testing etc., improves three
The utilization rate of dimension module improves production efficiency, reduces the amount of labour and error probability, solves the problems, such as the docking designed and produced；By
Manufacture and design in using three-dimensional digital, the technical requirement on design such as size material are all on threedimensional model, as uniform data source
It directly goes into operation, promotes the cooperative ability of design and craft, model information is directly used in the links such as emulation, avoids repeating to model, can
Effectively improve technological design efficiency and quality, data consistency in assurance model transmittance process.
Detailed description of the invention
Fig. 1 is the flow chart of current machine-building status；
Fig. 2 is main technological route figure of the invention；
Fig. 3 is three-dimensional digital design of the invention, production, examines schematic diagram.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawing.
A kind of modeling method that dimensional tolerance is converted to median size automatically, comprising the following steps:
S1. national standard database is established based on dimensional tolerance national standard data；
As shown in Figure 2 and Figure 3,
S2. in the design phase, designer creates view, and dimensioning and associated production information on threedimensional model；
S3. in the production phase, technologists extract the PMI(three-dimensional labeling of threedimensional model) information;
S4. it imported into national standard database;
S5. it retrieved, searched by national standard database, operation and output obtain median size parameter;
S6. intermediate size parameter portion is finally output to the examination and test of products, it is a that three-dimensional intermediate value ruler is generated by parametric modeling
Then very little model carries out the production and processing of product, avoid repetition modeling.
When carrying out a kind of lower product design and production, step S2-S6 is repeated.
Further, the associated production information includes material information.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (2)
1. the modeling method that dimensional tolerance is converted to median size by one kind automatically, it is characterised in that: the following steps are included:
S1. national standard database is established based on dimensional tolerance national standard data；
S2. view, and dimensioning and associated production information are created on threedimensional model；
S3. PMI information is extracted;
S4. it imported into national standard database;
S5. it retrieved, searched by national standard database, operation and output obtain median size parameter;
S6. intermediate size parameter portion is finally output to the examination and test of products, it is a that three-dimensional intermediate value ruler is generated by parametric modeling
Then very little model carries out the production and processing of product, avoid repetition modeling.
2. dimensional tolerance is converted to the modeling method of median size by one kind according to claim 1 automatically, feature exists
In: the associated production information includes material information.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910830219.7A CN110503720A (en) | 2019-09-04 | 2019-09-04 | A kind of modeling method that dimensional tolerance is converted to median size automatically |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910830219.7A CN110503720A (en) | 2019-09-04 | 2019-09-04 | A kind of modeling method that dimensional tolerance is converted to median size automatically |
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| CN110503720A true CN110503720A (en) | 2019-11-26 |
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| CN201910830219.7A Pending CN110503720A (en) | 2019-09-04 | 2019-09-04 | A kind of modeling method that dimensional tolerance is converted to median size automatically |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722614A (en) * | 2012-06-04 | 2012-10-10 | 中国电子科技集团公司第三十八研究所 | Method for building dynamic three-dimensional process model |
| CN104376152A (en) * | 2014-10-31 | 2015-02-25 | 北京宇航系统工程研究所 | Parametric modeling and labeling method |
| CN104375463A (en) * | 2014-11-07 | 2015-02-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Part machining method for automatically obtaining dimensional tolerance |
-
2019
- 2019-09-04 CN CN201910830219.7A patent/CN110503720A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722614A (en) * | 2012-06-04 | 2012-10-10 | 中国电子科技集团公司第三十八研究所 | Method for building dynamic three-dimensional process model |
| CN104376152A (en) * | 2014-10-31 | 2015-02-25 | 北京宇航系统工程研究所 | Parametric modeling and labeling method |
| CN104375463A (en) * | 2014-11-07 | 2015-02-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Part machining method for automatically obtaining dimensional tolerance |
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Application publication date: 20191126 |
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