CN104036551A - Three-dimensional process model modeling method oriented to machining process - Google Patents
Three-dimensional process model modeling method oriented to machining process Download PDFInfo
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- CN104036551A CN104036551A CN201410295671.5A CN201410295671A CN104036551A CN 104036551 A CN104036551 A CN 104036551A CN 201410295671 A CN201410295671 A CN 201410295671A CN 104036551 A CN104036551 A CN 104036551A
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Abstract
The invention discloses a three-dimensional process model modeling method oriented to the machining process. According to the method, an inter-process model serves as a carrier, and process attribute information and process labeling information are integrated onto the inter-process model. The inter-process model is composed of a manufacturing feature body and a post-machining part model. The manufacturing feature body, namely the features of a machined object, refers to the size of materials removed in the machining process. The post-machining part model includes new features formed through machining. The inter-process model can express geometric shape features and positions of materials removed in the process and geometric formation of machining features of the materials according to the features of the machined object included by the manufacturing feature body and the new features included by the part model and formed through machining. Compared with the prior art, the three-dimensional process model modeling method has the advantages that process information and the inter-process model are tightly linked through the method; structuralization and integration of the process information and a three-dimensional process model are finally achieved under one model; the three-dimensional process is easy to change and suitable for actual production.
Description
Technical field
The present invention relates to the modeling method of three-dimensional process model and the solution of expression mechanism, the main three-dimensional process model modelling approach of setting up towards mechanical processing technique.
Background technology
Technological design is the important step of production manufacture process, is the bridge that connects product design and product manufacture.Under the mixed mode of current " three-dimensional design+two dimension is produced ", first designer wants deisgn product three-dimensional model, then take much time, with energy, three-dimensional model is converted into two-dimensional engineering graphic, technologist carries out technological design based on two-dimensional engineering graphic afterwards, and generate sheet format process chart, for instructing production.Not only workload is huge for this traditional Process Planning, and technique information expression is unclear, change difficulty, is also difficult to ensure the uniqueness of process data.
Along with Three-dimensional CAD Software is in the continuous expansion of design department's range of application, carry out technological design based on three-dimensional model, generate and at the three-dimensional process of workshop application, become the inexorable trend of future development.Mechanical processing technique is the important component part of technological design, and for mechanical processing technique, the element of analyzing three-dimensional technique, sets up three-dimensional process model modelling approach, is exploitation three-dimensional process design software, realizes the important of three-dimensional process design and shifts to an earlier date and basic guarantee.
In present three-dimensional process design software, be equipped with three-dimensional operation model mainly with structuring technique information and form three-dimensional process, on the one hand, three-dimensional operation Model Independent is outside technique information, structuring technique information does not comprise the information that three-dimensional operation model and model are forgiven, and technique information is difficult to realize the associated of the degree of depth and integrated closely with three-dimensional operation model; On the other hand, three-dimensional operation model is independent foundation and storage, between three-dimensional operation model, lacks incidence relation, and three-dimensional process change difficulty is large, is difficult to be applicable to produce actual.
Described in comprehensive, setting up a brand-new three-dimensional process model modelling approach towards mechanical processing technique is the approach addressing the above problem, this three-dimensional process modeling method can be closely associated with operation model by technique information, operation model also can be unified under a model, finally realizes the structuring of technique information and three-dimensional operation model and integrated.
Summary of the invention
Towards a three-dimensional process model modelling approach for mechanical processing technique, the method, taking inter process model as carrier, is integrated in process attribute information and technique markup information in described inter process model.
Described inter process model is made up of manufacturing feature body and the rear part model of processing, the characteristics of objects that described manufacturing feature body comprises processing, described part model comprises the feature being processed to form, and the characteristics of objects that described inter process model comprises processing according to manufacturing feature body and part model comprise the geometric configuration that the feature being processed to form obtains geometric characteristic, the position of material that this operation is excised and is processed to form feature.
Described process attribute information comprises title and content, work flow information, job operation, equipment resource and the clamping information of processing this operation, work flow information, job operation and equipment resource are associated with processing object, and clamping information is associated with the part model after processing.
Described technique markup information comprises geometry processes information and non-geometry processes information, geometry processes information is made up of geometric properties, shape facility etc., non-geometry processes information is made up of dimensional tolerence, form and position tolerance, surfaceness and technique annotation, the technique markup information that process is needed adds on manufacturing feature body, by the process attribute information labeling after machining to after processing on part model.
The present invention is a kind of three-dimensional process model modelling approach towards mechanical processing technique, and the combination of three-dimensional inter process model and this procedure technology information is defined as three-dimensional process model by this modeling method.
Part model two parts after the material volume that described inter process model is removed by this operation machining and operation machine form.The material volume that the present invention removes operation machining is referred to as manufacturing feature body.
Described three-dimensional process model modelling approach, taking inter process model as carrier, is all integrated in process attribute information and technique markup information in three-dimensional inter process model.
Described process attribute information comprises the technique information such as title and content, job operation, equipment resource and clamping of processing this operation.Technique markup information comprises the non-geometry processes information such as the geometry processes such as geometric properties, shape facility information and dimensional tolerence, form and position tolerance, surfaceness and technique annotation.
Compared with prior art, three-dimensional process modeling method of the present invention is closely associated with operation model by technique information, is forming under a model, finally realizes the structuring of technique information and three-dimensional operation model and integrated.Three-dimensional process change easily, is applicable to produce actual.
Brief description of the drawings
Fig. 1 is the technique information expression figure of three-dimensional process model of the present invention.
Fig. 2 is three-dimensional inter process model instance figure.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, process modeling is taking inter process model as carrier, and process attribute information and technique markup information are all integrated in three-dimensional operation model.
Inter process model can intuitively be expressed geometric characteristic, the position of material that this operation is excised and is processed to form the geometric configuration of feature, the part model of inter process model by manufacturing feature body and after processing forms, manufacturing feature body can intuitively show the characteristics of objects of processing, and after processing, part model shows the shape facility forming after processing.The manufacturing feature body that inter process model comprises refers to the material volume that this operation machining is removed.
The process attribute information of operation comprises the technique information such as title and content, work flow information, job operation, equipment resource and clamping information of processing this operation, wherein work flow information, job operation and equipment resource are associated with manufacturing feature body, and clamping information is associated with the part model after processing.
The technique information of operation mark comprises geometry processes information and non-geometry processes information, geometry processes information is made up of geometric properties, shape facility etc., non-geometry processes information is made up of dimensional tolerence, form and position tolerance, surfaceness and technique annotation, the markup information that process is needed adds on manufacturing feature body, and the technique information after machining is marked on the rear part model of processing.
The three-dimensional process model that the present invention creates can complete display the needed technique information of expression process, be convenient to the application of Downstream processing manufacturing activities.
Be illustrated in figure 2 the instance graph of three-dimensional process model.The manufacturing procedure that Fig. 2 represents is the cutting of piece surface surplus, transparent part in this Fig. 2 is the manufacturing feature body material volume that this operation is removed, entity part is the part model after this operation machines, and these two parts have formed the inter process model of process redundancy.The thickness of the surperficial surplus that this operation is cut is 5mm, and mark is to this operation model; The attribute information of this operation as: job operation be turning processing, device resource used is numerically controlled lathe, and selected fixture is scroll chuck etc., and technique information will be associated with on this process modeling as attribute information; The surperficial markup information machining marks on the surface being processed to form as technique informations such as Roughness Information, tolerance information and dimension informations.Be directed to the three-dimensional process model creating in Fig. 2, the processing object that wherein this model is expressed is manufacturing feature body, and the thickness of process redundancy is 5mm, and job operation is turning processing, the operation resource information using wherein facility information is numerically controlled lathe, and fixture information is scroll chuck.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction.For any related personnel who is familiar with the art, not departing under the prerequisite of the technology of the present invention essence, can also make some improvement and modification, these improvement and modification also should be considered as protection scope of the present invention.
Claims (4)
1. towards a three-dimensional process model modelling approach for mechanical processing technique, it is characterized in that: the method, taking inter process model as carrier, is integrated in process attribute information and technique markup information on described inter process model.
2. the three-dimensional process model modelling approach towards mechanical processing technique according to claim 1, it is characterized in that: described inter process model is made up of manufacturing feature body and the rear part model of processing, described manufacturing feature body refers to the material volume that process is removed, the i.e. characteristics of objects of processing, after described processing, part model comprises the new feature being processed to form, described inter process model is that the characteristics of objects and the part model that comprise processing according to manufacturing feature body comprise the new feature being processed to form, can express the geometric characteristic of the material that this operation removes, position and be processed to form how much of feature and form.
3. want the three-dimensional process model modelling approach towards mechanical processing technique described in 1 according to right, it is characterized in that: described process attribute information comprises title and content, work flow information, job operation, equipment resource and the clamping information of processing this operation, work flow information, job operation and equipment resource are associated with processing object, and clamping information is associated with the part model after processing.
4. want the three-dimensional process model modelling approach towards mechanical processing technique described in 1 according to right, it is characterized in that: described technique markup information comprises geometry processes information and non-geometry processes information, geometry processes information is made up of geometric properties, shape facility etc., non-geometry processes information is made up of dimensional tolerence, form and position tolerance, surfaceness and technique annotation, the technique markup information that process is needed adds on manufacturing feature body, by the process attribute information labeling after machining to after processing on part model.
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| CN105589989A (en) * | 2015-11-03 | 2016-05-18 | 徐工集团工程机械股份有限公司 | Process model construction method and process model construction system |
| CN105893715A (en) * | 2016-06-01 | 2016-08-24 | 江苏科技大学 | Process information intelligent matching method based on machining characteristics |
| CN110555915A (en) * | 2019-08-08 | 2019-12-10 | 北京卫星制造厂有限公司 | three-dimensional model labeling system and method |
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| CN105589867A (en) * | 2014-10-21 | 2016-05-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Rapid generation method for three-dimensional machined technological document |
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| CN105893715A (en) * | 2016-06-01 | 2016-08-24 | 江苏科技大学 | Process information intelligent matching method based on machining characteristics |
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| CN110555915B (en) * | 2019-08-08 | 2022-12-27 | 北京卫星制造厂有限公司 | Three-dimensional model labeling system and method |
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Application publication date: 20140910 |