CN105589978A - Three-dimensional process design method based on model - Google Patents
Three-dimensional process design method based on model Download PDFInfo
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- CN105589978A CN105589978A CN201410562524.XA CN201410562524A CN105589978A CN 105589978 A CN105589978 A CN 105589978A CN 201410562524 A CN201410562524 A CN 201410562524A CN 105589978 A CN105589978 A CN 105589978A
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Abstract
The invention relates to a three-dimensional process design method based on a model. Starting is carried out in a three-dimensional software modeling environment, and a core part of the three-dimensional process design method consists of four parts of process route planning, process model generation, process information adding and process file generation. A design model and a blank model of a product are led into the same three-dimensional modeling environment, structures and machining allowances of the design model and the blank model are analyzed and compared, and then according to technical requirements and the like, planning of a process route is carried out. A process model is generated by carrying out addition and subtraction according to the existing design model, blank model, allowance diagrams and the like. After a process planning basic framework is set up well, production information can be added. The process model is browsed in a lightweight manner, and is embedded into a browsing page of each process. The three-dimensional process design method has the advantage of improving the process design level of an enterprise. The visual process design process reduces difficulty of process design. Correlation of the process model promotes quality of process planning, and automatic update of process information reduces a possibility of artificially generating errors.
Description
Technical field
The present invention relates to manufacturing technology field, particularly a kind of three-dimensional process based on modelMethod for designing.
Background technology
For a long time, three-dimensional CAD is mainly used in product design link, but technique department shouldWith or CAPP system based on two-dimentional CAD platform. This situation makes CAPP softAlthough part can improve the efficiency of technical papers establishment, can't fundamentally help to manufactureEnterprise's lifting process and manufacture level. The transmission of traditional handicraft regulation drawing up pattern be two dimension writtenInformation. For the art work sheet of any confusion, size is many, describes detailed not, complete. WorkSkill design, on-the-spot processing, detection links will be spent in correct understanding and execution design ideaTake a lot of energy and time, the editing cycle is very long, affects production efficiency and product quality. Closely severalYear every profession and trade has been carried out deep research work for the technological design based on threedimensional model, butNever reach ideal effect, substantially rest on the emulation aspect to assembly technology, by threeVc AD environment, the assembling process of analog equipment, and not for the mechanical processing technique of partThree dimensional design.
Summary of the invention
The object of the invention is to solve and under three-dimensional environment, cannot carry out the design of product three-dimensional processProblem, improves mechanical processing technique design level, make operation model, design a model and blank model itBetween keep associated, realize Collaborative Manufacturing, spy provides a kind of design of the three-dimensional process based on modelMethod.
The invention provides a kind of three-dimensional process method for designing based on model, it is characterized in that:The described three-dimensional process method for designing based on model starts under three-dimensional software modeling environment,Its core is by process route planning, operation model generation, technique information interpolation, technique literary compositionPart generates four most of compositions. Groundwork flow process is as follows:
1) as shown in Figure 1, designing a model of product imported to same three-dimensional with blank modelUnder modeling environment, analyze the structure and the allowance that contrast the two, then enter according to technical requirement etc.The planning of row process route. After process route has been planned, the processing technology basic framework of productForm, it forms as shown in Figure 2.
2) operation model generation: the generation of operation model is not the structure of simple independent modelBuild, key is to make relevant each operation model maintenance association, i.e. designing a model or hair of productOnce mold type dimensional structure changes and makes, concerned process steps moulded dimension can realize automatically moreNewly, and do not need technologist manually to change, reduced manual operation and produced wrong possibility.
Operation model according to existing designing a model, blank model, surplus figure etc. increase just or subtractMaterial generates. The association that keeps each operation model is to rely on from concerned process steps extraction geometric element to quoteIn this operation. Change once a certain model geometric size in associated chain, concerned process stepsCan automatically upgrade. The set membership that in Fig. 3, the direction representative model of arrow generates, on arrowYou represents father's feature, in the time that the model at father's feature place changes, and the mould at subcharacter placeType can upgrade automatically. If do not need to keep incidence relation, can interrupt associated chain.
Operation model is the information carrier of the corresponding technique mark of this operation, simultaneously with other structuringTechnological procedure information form mapping relations.
3) technique information adds: after technological procedure basic framework is put up, just can add systemMake information. Manufacturing information is divided into two classes, and a class is to adhere on threedimensional model again, by three-dimensionalMark Direct Mark is on threedimensional model entity. Another kind of is to embody with the form of listEssential information and the tooling step information etc. such as the title of part, material, hardness. Pass through xmlTechnology is stored in the file of backstage with the form of structure, in the corresponding information of CAD environment exploitationTyping window can be realized.
4) technical papers generates: technical papers needs to pay the scene of manufacture and uses after working out,Therefore need to depart from three-dimensional modeling environment, can not under editing mode, browse technique literary composition at technological parameterPart. After technical papers generates, operation model is browsed in light-weighted mode, and is embedded inThe browsing pages of each operation. Being different from two dimensional surface technical papers part is: operation modelCan carry out Vector enlarging, dwindle, translation rotation operation, can to small position, the part of productInfinitely to amplify and to browse.
Advantage of the present invention:
Three-dimensional process method for designing based on model of the present invention, improves enterprise's technological designLevel. Visual Process Planning has reduced the difficulty of technological design. The pass of operation modelConnection promoted the quality of technological procedure, the automatic renewal of technique information reduced people be make mistakes canEnergy.
Brief description of the drawings
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is the process design method workflow based on model;
Fig. 2 is the technological design basic framework schematic diagram based on model;
Fig. 3 is operation model generation schematic diagram;
Fig. 4 is work step message structure schematic diagram.
Detailed description of the invention
Embodiment 1
The present embodiment provides a kind of three-dimensional process method for designing based on model, and its feature existsIn: the described three-dimensional process method for designing based on model opens under three-dimensional software modeling environmentMoving, its core is by process route planning, operation model generation, technique information interpolation, workThe most of composition of skill file generated four. Groundwork flow process is as follows:
1) as shown in Figure 1, designing a model of product imported to same three-dimensional with blank modelUnder modeling environment, analyze the structure and the allowance that contrast the two, then enter according to technical requirement etc.The planning of row process route. After process route has been planned, the processing technology basic framework of productForm, it forms as shown in Figure 2.
2) operation model generation: the generation of operation model is not the structure of simple independent modelBuild, key is to make relevant each operation model maintenance association, i.e. designing a model or hair of productOnce mold type dimensional structure changes and makes, concerned process steps moulded dimension can realize automatically moreNewly, and do not need technologist manually to change, reduced manual operation and produced wrong possibility.
Operation model according to existing designing a model, blank model, surplus figure etc. increase just or subtractMaterial generates. The association that keeps each operation model is to rely on from concerned process steps extraction geometric element to quoteIn this operation. Change once a certain model geometric size in associated chain, concerned process stepsCan automatically upgrade. The set membership that in Fig. 3, the direction representative model of arrow generates, on arrowYou represents father's feature, in the time that the model at father's feature place changes, and the mould at subcharacter placeType can upgrade automatically. If do not need to keep incidence relation, can interrupt associated chain.
Operation model is the information carrier of the corresponding technique mark of this operation, simultaneously with other structuringTechnological procedure information form mapping relations.
3) technique information adds: after technological procedure basic framework is put up, just can add systemMake information. Manufacturing information is divided into two classes, and a class is to adhere on threedimensional model again, by three-dimensionalMark Direct Mark is on threedimensional model entity. Another kind of is to embody with the form of listEssential information and the tooling step information etc. such as the title of part, material, hardness. Pass through xmlTechnology is stored in the file of backstage with the form of structure, in the corresponding information of CAD environment exploitationTyping window can be realized.
4) technical papers generates: technical papers needs to pay the scene of manufacture and uses after working out,Therefore need to depart from three-dimensional modeling environment, can not under editing mode, browse technique literary composition at technological parameterPart. After technical papers generates, operation model is browsed in light-weighted mode, and is embedded inThe browsing pages of each operation. Being different from two dimensional surface technical papers part is: operation modelCan carry out Vector enlarging, dwindle, translation rotation operation, can to small position, the part of productInfinitely to amplify and to browse.
Claims (1)
1. the three-dimensional process method for designing based on model, is characterized in that: described based onThe three-dimensional process method for designing of model starts under three-dimensional software modeling environment, its coreBy process route planning, operation model generation, technique information add, technical papers generates four largePart composition; Groundwork flow process is as follows:
1) designing a model of product imported under same three-dimensional modeling environment with blank model,Analyze the two structure and allowance of contrast, then carry out process route according to technical requirement etc.Planning; After process route has been planned, the processing technology basic framework of product forms;
2) operation model generation: the generation of operation model is not the structure of simple independent modelBuild, key is to make relevant each operation model maintenance association, i.e. designing a model or hair of productOnce mold type dimensional structure changes and makes, concerned process steps moulded dimension can realize automatically moreNewly, and do not need technologist manually to change, reduced manual operation and produced wrong possibility;
Operation model according to existing designing a model, blank model, surplus figure etc. increase just or subtractMaterial generates; The association that keeps each operation model is to rely on from concerned process steps extraction geometric element to quoteIn this operation; Change once a certain model geometric size in associated chain, concerned process stepsCan automatically upgrade;
Operation model is the information carrier of the corresponding technique mark of this operation, simultaneously with other structuringTechnological procedure information form mapping relations;
3) technique information adds: after technological procedure basic framework is put up, just can add systemMake information; Manufacturing information is divided into two classes, and a class is to adhere on threedimensional model again, by three-dimensionalMark Direct Mark is on threedimensional model entity; Another kind of is to embody with the form of listEssential information and the tooling step information etc. such as the title of part, material, hardness; Pass through xmlTechnology is stored in the file of backstage with the form of structure, in the corresponding information of CAD environment exploitationTyping window can be realized;
4) technical papers generates: technical papers needs to pay the scene of manufacture and uses after working out,Therefore need to depart from three-dimensional modeling environment, can not under editing mode, browse technique literary composition at technological parameterPart; After technical papers generates, operation model is browsed in light-weighted mode, and is embedded inThe browsing pages of each operation; Being different from two dimensional surface technical papers part is: operation modelCan carry out Vector enlarging, dwindle, translation rotation operation, can to small position, the part of productInfinitely to amplify and to browse.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106934091A (en) * | 2017-01-09 | 2017-07-07 | 武汉开目信息技术股份有限公司 | A kind of method that size marking is generated for MBD operations model |
| CN109033523A (en) * | 2018-06-26 | 2018-12-18 | 首都航天机械公司 | A kind of Assembly process specification generation System and method for based on three-dimensional CAD model |
| CN113177312A (en) * | 2021-04-26 | 2021-07-27 | 杭州新迪数字工程系统有限公司 | CAD design method facing manufacturable based on MBD |
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| US20030144758A1 (en) * | 2002-01-31 | 2003-07-31 | Ravikiran Duggirala | System and method for integrating geometric models |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106934091A (en) * | 2017-01-09 | 2017-07-07 | 武汉开目信息技术股份有限公司 | A kind of method that size marking is generated for MBD operations model |
| CN109033523A (en) * | 2018-06-26 | 2018-12-18 | 首都航天机械公司 | A kind of Assembly process specification generation System and method for based on three-dimensional CAD model |
| CN109033523B (en) * | 2018-06-26 | 2023-04-18 | 首都航天机械公司 | Assembly process procedure generation system and method based on three-dimensional CAD model |
| CN113177312A (en) * | 2021-04-26 | 2021-07-27 | 杭州新迪数字工程系统有限公司 | CAD design method facing manufacturable based on MBD |
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