CN110020473A - The servo-actuated prediction technique of hot-rolling mill support construction machining deformation - Google Patents
The servo-actuated prediction technique of hot-rolling mill support construction machining deformation Download PDFInfo
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- CN110020473A CN110020473A CN201910249820.7A CN201910249820A CN110020473A CN 110020473 A CN110020473 A CN 110020473A CN 201910249820 A CN201910249820 A CN 201910249820A CN 110020473 A CN110020473 A CN 110020473A
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Abstract
The present invention for it is existing to structural member machining deformation control in artificial experience is excessively relied on the shortcomings that, disclose a kind of servo-actuated prediction technique of structural member machining deformation, it carries out the feature modeling of integral structure component by machining deformation analytical technology (CAE), then structural analysis and operating simulation are completed by finite element technique, next it will analyze and analog result imports deformation decision support module (DMSS), the analysis that deformation data is completed in the module, finally provides predictive information and is supplied to technical staff.This method solve the predictions of structural member machining deformation to the dependence of artificial experience, has real-time, dynamic and reliability, reduces production cost, the trial-production for shortening product and production cycle, improves production efficiency.
Description
Technical field
The present invention takes considerable time for the prediction technique of existing hot-rolling mill support construction machining deformation and energy, and according to
The status for relying skilled engineer, disclose it is a kind of can simultaneously and dynamically to existing or newly-increased workpieces processing resource into
The prediction technique of row machining deformation, in order to reduce production cost, the lead time for shortening product, utilization and improve operation effect
Rate.
Background technique
Non-woven fabrics is a frontier of the high speed development in recent years of textile industry, it is changed with polypropylene fibre, terylene, polyamide fibre etc.
The textile that slice or staple fiber once produce needs not move through the complicated link such as spinning, weaving, printing and dyeing, can be disposably straight
It is connected into cloth.According to the statistics of China National Textile Industry Council, China is first of the world yield Shang Ju of non-woven fabrics.But it is laid in nonwoven
Standby aspect, although there are tens device fabrication factories in China, most of home equipment is compared with advanced import equipment
There is huge gap.Currently, (speed of service is reachable fastly with high degree of automation, speed for advanced equipment of hot rolling in the world
800m/min) with cloth breadth (4.8 meters) the features such as.The non-woven cloth hot rolling equipment speed of domestic some manufacturers' productions it is low (<
250m/min), split is narrow (< 2.4m).The ultra-thin non-woven cloth of ultra-wide of Changzhou Wujin Guangyu Embossing Roller Machinery Co., Ltd.'s research and development
Hot rolling is equipped from design of part, and in order to mitigate weight, integral structure component has obtained application as much as possible.Monoblock type knot
Component is not formed by part simple combination, is process using integral workblank.
Because hot-rolling mill supporting structure generally has, structure is complicated, thin-walled, Varying-thickness, Curve On The Surface structure is more, coordinates
The features such as required precision is higher is all processed using the method for numerical control milling at present.But in process, due to
The many reasons such as cutting force, cutting heat, detail rigidity difference, are easy to deform.Currently used method is conservative cutting, work
Skill compensation and manual school shape, production efficiency is low and quality is difficult to ensure.
Summary of the invention
The purpose of the present invention is for it is existing in hot-rolling mill support construction milling Deformation control to artificial experience excessively according to
Bad disadvantage, one kind of invention based on " the profile-followed combined method of brick body " modeling by being realized to ANSYS and Delphi secondary development
To integral structure component, actively, fast and accurately parametrization establishes finite element model and the servo-actuated method predicted of milling deformation.
The technical scheme is that
A kind of servo-actuated prediction technique of hot-rolling mill support construction machining deformation, it is by (1) deformation analysis technology (CAE), (2)
Deform decision support technique (DMSS) and (3) prediction result display technique three parts composition.
Wherein:
(1), deformation analysis technology (CAE) realizes the modeling analysis of structural member, carries out computer simulation to processing, realizes and add
Work deformation forecast analysis, it the following steps are included:
A1. the collecting work of CAD model data point is carried out first from data dot file；
B1. it according to the collection result or data dot file in step a1, realizes the foundation of CAD processing submodel, establishes
In good submodel deposit finite element background data base ANSYS_DB:
C1. according to step b1's as a result, complete the foundation of CAD processing overall model, and established overall model is deposited
Enter in finite element background data base ANSYS_DB；
New method --- " the profile-followed combined method of brick body " of modeling is used in the step:
A basic model library is initially set up, which has triangle, regular quadrilateral, irregular quadrilateral, circle
Shape and polygon (model library above all passes through two basic functions: curvilinear function and linear function are completed), by above-mentioned base
This model regards " brick body " of special shape one by one as；Then they are assembled one by one according to part physical location, this
Sample just constitutes the Whole structure model of part.
D1. technological parameter, subnetting, constraint and loading principle are set, and by the technological parameter of these settings, subnetting, about
The data such as beam and loading principle are stored in the DEFORM_DB of deformation data library；
E1. it divided according to the network that the criterion set in step d1 completes model, constrain application and load, generate APDL text
Part；
F1. the step e1 destination file obtained or the APDL file of preservation are imported into limited n ary operation software, is simulated
Operation, and operation result is stored in the DEFORM_DB of deformation data library.
(2) deform decision support technique (DMSS), realize to the comprehensive analysis of deformation result and working process parameter with
Dynamic optimization is recommended, it the following steps are included:
A2. user inquires the available data in database according to part feature number, if there is corresponding data,
These data are then extracted, otherwise enters (1) and is solved；
B2. the data of extraction are subjected to two-dimensional curve or Surface Analysis and three-dimensional curve or Surface Analysis according to condition,
And analysis result is stored in deformation data library ANSYS_DB；
C2. input criterion, by b2 analysis result and criterion be compared analysis, it is servo-actuated to recommend reasonably to process work out
Skill parameter.
(3) prediction result display technique realizes real-time, Dynamically Announce to prediction result under different parts, different condition；
Beneficial effects of the present invention: the present invention solves dependence of the integral structure component milling Deformation control to worker's experience
Property, there is real-time, dynamic and reliability, by it, sunykatuib analysis is carried out to the milling deformation of integral structure component, be structure
The formulation of the processing scheme of part provides decision support, quickly recommends suitable working process parameter to user.In order to reduce life
It produces cost, the trial-production for shortening product and production cycle, utilization and improves operational efficiency.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is that structural member machining deformation of the invention is servo-actuated Predicting Technique frame.
Fig. 2 is structural member machining deformation analysis flow chart diagram of the invention.
Fig. 3 is structural member machining deformation decision support flow chart of the invention.
Fig. 4 is " the profile-followed combined method of brick body " of the invention modeling schematic diagram.
Fig. 5 is the deformation schematic diagram of the present invention one specific part of prediction.
Specific embodiment
Presently in connection with attached drawing, the present invention is described in detail.This figure is simplified schematic diagram, is only illustrated in a schematic way
Basic structure of the invention, therefore it only shows the composition relevant to the invention.
As shown in Figs 1-4.
A kind of servo-actuated prediction technique of hot-rolling mill support construction machining deformation, it, which is mainly included the following steps that, is:
The first step realizes the modeling analysis of structural member, to processing carry out computer simulation, it the following steps are included:
A1. firstly, extracting data from data dot file, the collecting work of CAD model data point is carried out；
B1. it according to the collection result or data dot file in step a1, realizes the foundation of CAD processing submodel, establishes
In good submodel deposit finite element background data base ANSYS_DB:
C1. according to step b1's as a result, complete the foundation of CAD processing overall model, and established overall model is deposited
Enter in finite element background data base ANSYS_DB；
New method --- the profile-followed combined method of brick body of modeling is used in the step:
A basic model library is initially set up, which has triangle, regular quadrilateral, irregular quadrilateral, circle
Shape and polygon (model library above all passes through two basic functions: curvilinear function and linear function are completed), by above-mentioned base
This model regards " brick body " of special shape one by one as；Then they are assembled one by one according to part physical location, this
Sample just constitutes the Whole structure model of part, such as Fig. 4 institute method.
D1. technology process parameter and subnetting, constraint and loading principle are set, and these data are stored in deformation data library
In DEFORM_DB；
E1. it divided according to the network that the criterion set in step d1 completes model, constrain application and load, generate APDL text
Part；
F1. the step e1 destination file obtained or the APDL file of preservation are imported into limited n ary operation software, is simulated
Operation, and operation result is stored in the DEFORM_DB of deformation data library.
Second step realizes that the servo-actuated optimization to the integrated forecasting of machining deformation result and technological parameter is recommended, it include with
Lower step:
A2. user inquires the available data in database according to part feature number, if there is corresponding data,
These data are then extracted, otherwise enters the first step and is solved；
B2. the data of extraction are subjected to two and three dimensions curve or Surface Analysis according to condition, and will analysis result deposit
Deformation data library ANSYS_DB；
C2. input criterion, by step b2 analysis result and criterion be compared analysis, recommend reasonably to process work out
Skill parameter, such as Fig. 5 institute method.
Third step realizes the management to systematic difference module and user right.
It is further described below with reference to an example:
The present invention can realize that they are by three technology: (1) machining deformation analytical technology (CAE), (2) processing become
Shape decision-making technic (DSS), (3) prediction result display technique.Wherein CAE technology includes that model library is established and cutting process simulation two
Part.Model library foundation includes that parametrization establishes the finite elements moulds such as three frames, four frame of three frame of curl, four frames and curl
The method of type.Cutting process simulation includes the functions such as APDL macro document is edited automatically, ANSYS analysis system is called；Machining deformation
Decision-making technic includes that the inquiry of self defined area deformation result and the optimization of browsing, the comprehensive analysis of prediction result and technological parameter push away
The functions such as recommend.Prediction result display technique can realize the function such as different parts, the real-time of different condition prediction result, Dynamically Announce
Energy.
In machining deformation analytical technology module, user completes the definition of workpiece size, processing removal portion size herein, needs
It should be noted that these sizes are (the corresponding length numbers for being multiplied by corresponding lattice number by corresponding sizing grid and obtaining
Value can be shown on interface), this is done to the data for preventing user from inputting to be not suitable for analysis.Workpiece height direction when definition
Lattice number should be even number, because we have assumed that residual stress short transverse is symmetrical along median surface in research.
After the definition for completing part size parameter, continue the definition of machined parameters.
After the definition for completing machined parameters, the definition of clamping constraint is carried out.
After completing above-mentioned steps, APDL program is generated, and carry out data validation, if examining by data validity
It testing, user may be selected to save the APDL program of generation to file, it carries out checking editor or analytical calculation again after convenient, if
It is already installed with ANSYS software in the machine, starting ANSYS also may be selected and directly carry out analytical calculation, program can be saved first at this time
Then APDL sentence is automatically imported to ANSYS and carries out operating simulation analysis.
Fig. 5 is the Structural Part Model established using this method and the structural member deformation that prediction obtains.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff
Various changes and amendments can be carried out without departing from the scope of the present invention completely.The technical scope of this invention is not
The content being confined on specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (1)
1. a kind of servo-actuated prediction technique of hot-rolling mill support construction machining deformation, it is characterised in that: this method is by machining deformation point
Analysis technology, machining deformation are servo-actuated decision support technique and prediction result display technique three parts composition；Wherein,
(1) machining deformation analytical technology realizes the modeling analysis of hot-rolling mill support construction, carries out computer mould to process
It is quasi-, comprising the following steps:
A1. firstly, extracting data from data dot file, the collecting work of CAD model data point is carried out；
B1. according to the collection result or data dot file in step a1, the foundation of CAD processing submodel is realized, it is established
Submodel is stored in finite element background data base ANSYS_DB:
C1. according to step b1's as a result, complete the foundation of CAD processing overall model, and established overall model is deposited into
In background data base ANSYS_DB；
New method --- " the profile-followed combined method of brick body " of modeling is used in step c1:
Initially set up a basic model library, the model library have triangle, regular quadrilateral, irregular quadrilateral, circle and
The basic model of polygon, the model library all pass through two basic functions: curvilinear function and linear function are completed, will be upper
It states " brick body " that the basic model in model library regards special shape one by one as；Then according to part physical location by they with
Shape assembles, and thus constitutes the Whole structure model of part；
D1. technological parameter, subnetting, constraint and loading principle are set, and the data of these settings are stored in deformation data library
In DEFORM_DB；
E1. it is divided according to the network that the criterion set in step d1 completes model, additive model load is applied in constraint, generation result text
Part or APDL file；
F1. the destination file obtained in step e1 or the APDL file of preservation are imported into limited n ary operation software, carries out simulation fortune
It calculates, and operation result is stored in the DEFORM_DB of deformation data library；
(2) machining deformation is servo-actuated decision support technique, realizes to the comprehensive analysis of machining deformation result and working process parameter
Servo-actuated optimization is recommended, comprising the following steps:
A2. user inquires the available data in database according to part feature number, if there is corresponding data, then mentions
These data are taken out, (1) is otherwise entered step and is solved；
B2. the data of extraction are subjected to two-dimensional curve or Surface Analysis and three-dimensional curve or Surface Analysis according to condition, and will
It analyzes result and is stored in deformation data library DEFORM_DB；
C2. input criterion, by step b2 analysis result and criterion be compared analysis, it is servo-actuated to recommend reasonably to process work out
Skill parameter；
(3) prediction result display technique realizes real-time, Dynamically Announce to prediction result under different parts, different condition.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281659A (en) * | 2008-04-28 | 2008-10-08 | 南京航空航天大学 | Method for modeling finite element of multi-frame integral structure component |
| CN103177163A (en) * | 2013-04-09 | 2013-06-26 | 常州工学院 | Follow-up forecast method for milling deformation of complex integral structural components |
-
2019
- 2019-03-29 CN CN201910249820.7A patent/CN110020473A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281659A (en) * | 2008-04-28 | 2008-10-08 | 南京航空航天大学 | Method for modeling finite element of multi-frame integral structure component |
| CN103177163A (en) * | 2013-04-09 | 2013-06-26 | 常州工学院 | Follow-up forecast method for milling deformation of complex integral structural components |
Non-Patent Citations (1)
| Title |
|---|
| 李丹: "航空铝合金薄壁件铣削加工工艺优化及有限元仿真", 中国优秀硕士学位论文全文数据库, pages 1 - 64 * |
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