CN109558647A

CN109558647A - A kind of similar part fast modeling method based on CATIA

Info

Publication number: CN109558647A
Application number: CN201811318730.0A
Authority: CN
Inventors: 龙家文; 姚海波; 伍小亮
Original assignee: Xian Aircraft Design and Research Institute of AVIC
Current assignee: Xian Aircraft Design and Research Institute of AVIC
Priority date: 2018-11-07
Filing date: 2018-11-07
Publication date: 2019-04-02
Anticipated expiration: 2038-11-07
Also published as: CN109558647B

Abstract

The invention belongs to aircaft configuration field of computer aided design, are related to a kind of similar part fast modeling method based on CATIA.1: under assembly parts model node, replicating existing part model file；2: being pasted in a manner of break link under the part to required assembling model, be modified as new dash number, link again and save part；3: entering Element Design environment and refresh part model, preprepared external surface, stringer used in design elements and frame occupy-place Plane reference element are found in " the incorporated by reference shape " of model file, in the dialog box occurred after selecting corresponding reference element to click by mouse right button, the long joist axial line or frame plane of recited components are substituted for the long joist axial line or frame plane of new parts, software systems then refresh into required part model by new position automatically after determining；4: to the attribute modification of new parts model, perfect.Creation model can save 90% or more the time of modeling in this way, and modeling efficiency is greatly improved.

Description

A kind of similar part fast modeling method based on CATIA

Technical field

The invention belongs to aircaft configuration field of computer aided design, and in particular to a kind of similar zero based on CATIA Part fast modeling method.

Background technique

The world today is in the information technology rapid development epoch, and CAD must be used during product development Etc. new technologies shorten the lead time, and then reduce cost to pursue the maximization of company interest.

The aircraft industry of China be in the critical stage overtaken other vehicles of World Airways power's bend, shorten the development week of aircraft Phase is the inevitable choice of this process.There are many similar parts on aircaft configuration, this kind of similar part is built using CATIA software Step and process completely the same, other attributes complete one of part model other than weight and woollen size when mould Sample, individually creation model is bound to cause a large amount of duplication of labour wastes of time, one kind similar zero that the present invention is advocated one by one Part fast modeling method can solve above-mentioned problem, can greatly improve modeling efficiency.

Summary of the invention

The object of the present invention is to provide a kind of similar part fast modeling method based on CATIA, to solve individually creation The time-consuming and laborious problem of a large amount of same kind of parts.

Technical solution

The purpose of the present invention is touch the same a large amount of part models for way one to provide a kind of Method of Creation Process.

This method process is as shown in Figure 1.Firstly, create or call under the assembling model of CATIA V5 platform one it is complete Model file, model file constrained by external surface, long joist axial line and frame plane etc. and resulting processes element, part Model attributes (title, material, woollen size, weight, note etc.) are filled in completely.It is quickly created on the basis of the existing part model The method for building other new similar part models is as follows:

Step 1: under assembly parts model node, replicating existing part model file；

Step 2: being pasted in a manner of break link under the part to required assembling model, be modified as new part and compile Number, it links again and saves part；

Step 3: entering Element Design environment and refresh part model, find and set in " the incorporated by reference shape " of model file Reference element (preprepared external surface, stringer and frame occupy-place plane etc.) used in part is counted, corresponding reference is selected In the dialog box that element occurs after clicking by mouse right button, the long joist axial line or frame plane of recited components are substituted for the length of new parts Purlin axis or frame plane, software systems then refresh into required part model by new position automatically after determining；

Step 4: the attribute (such as center of gravity, size data) of new parts model being modified, is perfect.

The rapid modeling that similar part can be realized by above-mentioned four step, continue through this method continuously create it is numerous its His similar part model.

Technical effect

Individually one shearing cornual plate model of creation needs 10 minutes or so, and creating other shearing cornual plates in this way then only needs Within 1 minute.It is calculated in one section by 400 shearing cornual plates, individually creation model takes around 4000 minutes, in this way Creation model only needed within 400 minutes, can save 90% or more the time of modeling, modeling efficiency is greatly improved.

Detailed description of the invention

Fig. 1 is the quick visioning procedure figure of similar part model

Fig. 2 is that series of shear cornual plate locally installs view on aircaft configuration

Fig. 3 is similar part creation result schematic diagram

Specific embodiment

Below with reference to specific drawings and examples, the invention will be further described.

Firstly, part model creation method of the present invention is the three-dimensional software design produced based on French Da Suo company It is carried out under platform CATIA V5.

The present invention comes to carry out the technical solution using the shearing cornual plate on the common frame of aircaft configuration as typical part detailed Explanation.Structure shown in Fig. 2 is only the partial view on aircaft configuration, aircaft configuration be actually structure shown in Fig. 2 laterally and Longitudinal extension, angle of shear piece quantity can be very much.The covering inner surface that civil aircraft structure is especially on aircaft configuration is disposed with The metal plate that common frame generallys use Z-section floats the structure type of frame, the arrangement shearing cornual plate between 1 frame position every two root long purlin L10, L11, L12, L13 ..., between 2 frame position every two root long purlins arrangement shearing cornual plate L20, L21, L22, L23 ..., Floating frame is connected with covering and stringer with shearing cornual plate.Unilateral about three, 40 shearing cornual plates on each frame, one Shearing cornual plate many hundreds in section, individually completely after one shearing cornual plate part model of creation, the mould of other shearing cornual plates Type can quickly be created by following methods.

Method of the present invention must have a complete reference of the mold elements as initialization.? A complete shearing cornual plate L11 is created under the assembling model of CATIA V5 platform as existing model, model file is only by outer Shape face, long joist axial line and frame plane and the constraint of resulting processes element, part model attribute (title, material, woollen ruler Very little, weight, note etc.) it fills in completely.Below for quoting L11 and quickly create L13 (or L21, L23), illustrate similar Part model Method of Creation Process is as follows.

Step 1: under assembly parts model node, replicating shearing cornual plate L11 model created.Reconstructed model file It can be and routinely create, be also possible to be created by the fast method.

Step 2: it is pasted in a manner of break link under the part model to required assembling model, what software automatically generated Dash number is temporarily " Copy (1) of L11 ", needs to be modified as new part model number L13 (or L21, L23), again chain It connects and saves part model.

Step 3: the Element Design environment for entering shearing cornual plate L13 (or L21, L23) refreshes part model, in external reference Lower handle " 1 long joist axial line " is substituted for " 3 long joist axial line ", " 2 long joist axial line " is substituted for " 4 long joist axial line ", and part model is then pressed Completion modification is refreshed in new position automatically；It is identical as L11 stringer position to shear cornual plate L21, it is only necessary to which " 1 frame plane " is substituted for " 2 Frame plane " then may be used；Shearing cornual plate L23 and L11 stringer position and frame erect-position are different from, while being needed " 1 frame plane " It is substituted for " 2 frame plane ", and " 1 long joist axial line " is substituted for " 3 long joist axial line ", " 2 long joist axial line " is substituted for " 4 length Purlin axis "；Other similar parts are analogized by this.

Step 4: to new shearing cornual plate L13 (or L21, L23) model attributes title and weight (it is without being limited thereto, it is possible to Woollen size, note etc. are modified according to actual needs) it modifies, is perfect.

The rapid modeling of similar part can be realized by above-mentioned four step, and so on, it can continue to create by this method Build out numerous other shearing cornual plates.It, can also be fast by L13 or L21 and after being quickly created that L13 or L21 by L11 Speed is created that L23, as shown in Figure 3.

Claims

1. a kind of similar part fast modeling method based on CATIA, which comprises the steps of:

Firstly, a complete model file is created or called under the assembling model of CATIA V5 platform, model file is by outer Shape face, long joist axial line and frame plane and the constraint of resulting processes element, part model attribute are filled in completely.It is existing at this The method that other new similar part models are quickly created on the basis of part model is as follows:

Step 2: it is pasted in a manner of break link under the part to required assembling model, is modified as new dash number, weight New link simultaneously saves part；

Step 3: entering Element Design environment and refresh part model, find design zero in " the incorporated by reference shape " of model file Preprepared external surface, stringer used in part and frame occupy-place Plane reference element, select corresponding reference element right mouse In the dialog box that key occurs after clicking, the long joist axial line or frame plane of recited components are substituted for the long joist axial line or frame of new parts Plane, software systems then refresh into required part model by new position automatically after determining；

Step 4: to the attribute modification of new parts model, perfect.

2. a kind of similar part fast modeling method based on CATIA according to claim 1, which is characterized in that pass through The rapid modeling of similar part can be realized in above-mentioned four step, continues through this method and continuously creates numerous other similar parts Model.