CN100559375C - Utilization is based on the implementation method of the on-the-spot teaching of the three-dimensional assembly technique file of WEB - Google Patents
Utilization is based on the implementation method of the on-the-spot teaching of the three-dimensional assembly technique file of WEB Download PDFInfo
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Abstract
The present invention is directed to the demand that at present three-dimensional assembly technique is designed, the implementation method of a kind of utilization based on the on-the-spot teaching of the three-dimensional assembly technique of WEB disclosed, this method synthesis the three-dimensional CAD design software, the advantage of virtual reality technology and network application, having solved present assembly technology design disconnects with Three Dimensional Design Model, two dimension technology made of paper is unfavorable for that operating personnel understand and use, the problem that the technical papers that produces is not easy to manage, it is convenient to have design, intuitive, the characteristics that interactivity is good, by it and utilize browser to pass through Internet/Intranet, the technologist can work out three-dimensional assembly technique file and assembling animation easily, also can make things convenient for, intuitively the operating personnel of erecting yard are played the effect of teaching.Can improve the efficient of Product Assembling Design significantly and reduce the site-assembled cycle of product.
Description
Technical field
The present invention relates to a kind of generation method of the assembling process of products based on WEB and the implementation method of on-the-spot teaching, especially the generation of three-dimensional assembly technique file and browsing method, specifically a kind of under Internet/Intranet the realization and the browsing method of three-dimensional assembly technique file.
Background technology
The product assembling is an important step in the machinery production process.According to statistics, in industrialized country, about manpower of about 1/3 is being engaged in relevant product assembling activity in the production run of product, makes the assembling that 20%～30% of total expenses is used for product, 40%～60% when product assembling man-hours requirement accounts for production making chief engineer.Therefore there is great important in the cycle that reduces the assembly technology design for improving production efficiency of products.
Along with developing rapidly with universal of three-dimensional CAD software, the three-dimensional CAD technology is replacing two dimensional CAD system to become the basic platform of enterprise product innovative design and Digital Design and Manufacture.Also make the cycle of product design shorten greatly, yet the design of present assembly technology all is to adopt artificial establishment at two-dimentional drawing, the establishment cycle is long, too relies on technologist's technical merit and assembling experience, and the assembly technology design is loaded down with trivial details and lack of standardization.And CAPP (CAPP) system only provides a computer platform that carries out artificial basketry card, based on the expression of the assembly technology design knowledge of two dimension view, generation, Organization And Management difficulty relatively, and can't be intuitively, alternatively assembling process is carried out emulation and assessment, two-dimentional in addition papery technical papers can't intuitively reflect assembling detail and requirement, understand, use and bring difficulty for technology State Control, operating personnel, and the also area of computer aided assembly technology design software that designs a model of neither one corresponding three-dimensional CAD at present.Therefore, how to make full use of the information that three-dimensional CAD designs a model, assembly technique file is convenient to understand and on-the-spot browsing becomes a problem that presses for solution at present.
Present research for three-dimensional mounting technology concentrates on and utilizes computing machine that space geometry, topological structure and the assembly constraint relation of product are analyzed and reasoning automatically, set up the assemble sequence precedence constraint between parts, thereby find out all and how much go up feasible assembling sequence, and by certain estimate mechanism (as between jacket and shorts timing and the minimal fitting cost) carry out preferably.But according to the knowledge of the applicant, still none is complete at present, the three-dimensional assembly technique method for designing that is used for three-dimensional assembly technique planning and generation three-dimensional process card and assembling process animation can be used for reference use for people, the applicant has applied for that to Patent Office of State Intellectual Property Office name is called the patent of invention of " implementation method of paper-free three-dimensional assemblage process document ", has solved this problem preferably on January 16th, 2008 for this reason.But the applicant finds in actual use, because the computer system travelling speed at user assembled scene is slow, hard-disk capacity is limited, and same operating terminal need store the assembly technique file of multiple product, therefore is difficult to reach the operational effect of the imagination.
Meanwhile, along with Internet/Intranet develop rapidly and use popularize, information transmitted also no longer only is confined to resemble the little information of capacity the plain text, the transmission demand of multimedia messagess such as animation also can satisfy easily.Make based on the realization of the three-dimensional assembly technique file of WEB and be applied to for may.It is browser and server mode that present diverse network application software major part all is based on Browser/Server pattern (hereinafter to be referred as the B/S pattern).Under this structure, the user job interface is to realize by the WWW browser, and few part affairs logic realizes at front end (Browser), but main affairs logic forms so-called tri-level logic structure in server end (Server) realization.So just simplify client computer load greatly, alleviated the cost and the workload of system maintenance and upgrading, reduced user's overall cost.
Become along with three-dimensional CAD software the maturation gradually of basic platform, virtual reality technology of enterprise product innovative design and Digital Design and Manufacture and Internet/Intranet develop rapidly and use popularize, increase day by day to the demand of the auxiliary assembly technology design of three-dimensional with to the demand of the technical papers that is easy to understand and manages.Therefore, the implementation method of the generation method of a kind of assembling process of products based on WEB of exploitation and on-the-spot teaching be when bar anxious.
Summary of the invention
The objective of the invention is at the existing speed of existing three-dimensional assembly system terminal slow, the problem that required memory device is difficult to meet the demands, invent a kind of based on the three-dimensional assembly technique file of WEB and the implementation method of on-the-spot teaching, to alleviate the dependence of total system greatly to the terminal device performance.
Technical scheme of the present invention is:
A kind of based on the three-dimensional assembly technique file of WEB and the implementation method of on-the-spot teaching, it is characterized in that it may further comprise the steps:
At first, in the technological design client, read geological information and the assembly information that designs a model by the second development interface function of technologist by Pro/Engineering three-dimensional CAD design software, and deposit the assembly information database in, importing to reality environment again assembles or dismantles product model, and carry out real-time interference and collision and detect and obtain final assemble sequence and assembly path, assembly path is by the volume coordinate point expression of serial variance, and step-length can be adjusted by the user;
Secondly, the assemble sequence and the assembly path information that obtained according to the last step, make the assembling animation of this assembly process by the second development interface function of Pro/Engineering, and the assembling animation file of derivation mpg form, by the Internet/Intranet access server, open the assembly technique file list of Web browser display server feedback, the literal table area of assembly process card is edited according to the work step content by the technologist, and select pairing assembling animation file under each operation, after finishing, the literal form editor of each operation promptly submits the assembly process card list of finishing to server;
The 3rd, server end is handled the assembly process card list of submitting to, deposit the operation number of assembly process card in database as primary key, automatically the assembling animation file name of uploading is encoded, and code clerk preserved as assembling animation file name, will identify the operation number of assembly process card and corresponding one by one being saved in the database of code clerk of assembling animation file accordingly simultaneously;
The 4th, client at erecting yard, the assembly manipulation personnel are by the Internet/Intranet access server, after authentication, open webpage the assembly process card is inquired about, and the operation card that select to need browses, operation card comprises explanatory note part and assembling animation part, wherein assemble animation accordingly and play, reach the purpose of on-the-spot teaching by the Window Media Player player control of embedded web page.
Described assembly path information is a series of set that can describe the discrete point of part model spatial pose, comprises position and rotation information.
Described reality environment is to assemble and the software environment of disassembling section and the hardware of being supported part model.
Described assembly technique file comprises operation card and technological process card, and they are made up of animation region on the webpage and character area, and animation region is the media player of the play assembling animation in the webpage, and character area is made up of the form and the list of webpage.At server end, the Word message in the technical papers is kept in the table of database, and corresponding with it animation information is kept in the folder content.
The invention has the beneficial effects as follows:
The present invention is used for field of machining with the WEB technology first, can give full play to every function that WEB has, alleviate the dependence of assembling terminal greatly, help giving full play to of on-the-spot demonstration function computing power, bring into play network advantages, reduced equipment investment.
The present invention utilizes CAD software design Moulds Based on Three-Dimensional Models information and carry out the three-dimensional assembly technique design under reality environment, the feasible assembly process and the assembly path of planning parts, make the assembling process Show Me animation by CAD Software Secondary Development interface function again, and open three-dimensional assembly technique by the Internet/Intranet access server and design webpage, be saved in the database after will assembling the mapping of animation and technique information, realize the design of assembling process emulation and technical papers.Make that erecting yard can be in client by the Internet/Intranet access server, through behind the Authority Verification, by the required technical papers of web page browsing.
Utilize method of the present invention can make operating personnel pass through the touch-screen display access server in operation site, and login system, select required operation card to browse to technical papers inquiry back, three-dimensional animation provides broadcast, stop, retreat, playing functions such as F.F., reach the purpose of on-the-spot teaching, having overcome needs to assemble the inconvenience that file and high capacity animation file are brought accordingly in each terminal storage in the past, has not only alleviated the memory capacity of terminal device, and has alleviated technologist's workload, the technologist only needs all file and the animations of storage in server, and need not provides operation file and animation file to each terminal again.
The present invention has successfully solved present assembly technology design and has disconnected with Three Dimensional Design Model, two dimension technology made of paper is unfavorable for that operating personnel understand and use, the problem that the technical papers that produces is not easy to manage, have design convenience, intuitive, characteristics that interactivity is good, by it and utilize browser to pass through Internet/Intranet, the technologist can work out three-dimensional assembly technique file and assembling animation easily, also can make things convenient for, intuitively the operating personnel of erecting yard be played the effect of teaching.Simultaneously technique information is preserved with the list form and made also the technical papers document be more convenient for management and consult that it is convenient and swift to make also that based on the software structure design of B/S pattern technical papers transmits, and information is safer.This invention can improve the efficient of Product Assembling Design significantly and reduce the site-assembled cycle of product, thereby reaches the purpose that reduces cost of products and respond market fast for enterprise.
Description of drawings
Fig. 1 is based on the assembling three-dimensional process design software process flow diagram of WEB.
Fig. 2 is product model is imported reality environment by the CAD environment a process flow diagram.
Fig. 3 is the process flow diagram that server end is preserved technical papers.
Fig. 4 is an assembly process card design process flow diagram.
Fig. 5 is the assembly interface under the reality environment.
Fig. 6 is the interface of edit process card under the browser.
Embodiment
The present invention is further illustrated for following structure drawings and Examples.
Shown in Fig. 1-6.
A kind of based on the three-dimensional assembly technique file of WEB and the implementation method of on-the-spot teaching, it is characterized in that it may further comprise the steps:
At first, in the technological design client, read geological information and the assembly information that designs a model by the second development interface function of technologist by Pro/Engineering three-dimensional CAD design software, and deposit the assembly information database in, importing to reality environment again assembles or dismantles product model, and carry out real-time interference and collision and detect and obtain final assemble sequence and assembly path, assembly path is by the volume coordinate point expression of serial variance, and step-length can be adjusted by the user.Wherein assembly path information is a series of set that can describe the discrete point of part model spatial pose, comprises displacement and rotation information, with homogeneous matrix representation is:
Wherein the attitude of T1 descriptive model is represented X, Y under the part coordinate system, the vector of Z vector under the assembling coordinate system respectively; The displacement of initial point on X, Y, Z direction under the assembling coordinate system of part coordinate system represented in the displacement of T2 descriptive model respectively.
Secondly,, make the assembling animation of this assembly process, and derive the assembling animation file of mpg form by the second development interface function of Pro/Engineering according to assemble sequence and the assembly path information that the last step obtains.The step of wherein creating assembling animation key frame is as follows:
A. create the assembling animation of each part successively according to the assembling sequence;
B. read in the assembly path information of part to be assembled, promptly the pose of series of discrete point is determined initial key frame according to the initial pose of part, smoothly creates the animation key frame between each pose point then, until final rigging position;
C. judge whether part has assembled,, then get back to a if do not finish assembling; Otherwise the key frame set is created and is finished.
By the Internet/Intranet access server, the assembly technique file under the open any browser is edited the literal table area of assembly process card, and selects the assembling animation file under this operation then.Submit the assembly process card list of finishing to server;
The 3rd, server end is handled the assembly process card list of submitting to, deposits the operation number of assembly process card in database as primary key, and sets up the mapping relations between operation file and the assembly process animation file.Concrete steps are: automatically the assembling animation file name of uploading is encoded, and code clerk preserved as assembling animation file name, will identify simultaneously in the corresponding one by one table that is saved in database of the operation number of assembly process card and the code clerk that assembles animation file accordingly and file path;
The 4th, client at erecting yard, the assembly manipulation personnel are by the Internet/Intranet access server, after authentication, opening webpage inquires about the assembly process card, and the operation card that select to need browses, and operation card comprises explanatory note part and assembling animation part, wherein assembles animation accordingly and is play by the Window Media Player player control of embedded web page.Reach the purpose of on-the-spot teaching.
Described reality environment is to assemble and the software environment of disassembling section and the hardware of being supported part model.
Described assembly technique file comprises operation card and technological process card, and they are made up of animation region on the webpage and character area, and animation region is the media player of the play assembling animation in the webpage, and character area is made up of the form and the list of webpage.At server end, the Word message in the technical papers is kept in the table of database, and corresponding with it animation information is kept in the folder content.
Be further described below in conjunction with an example:
Assembly technique file is designed program and is deployed in server end, and the production process of assembling animation is deployed in client with card format.The user moves Pro/Engineering under Windows 2000/xp environment, click the menu item under the customized menu, assembly information can be saved to database, and open the assemble/disassemble operation that virtual mechanical assembly software carries out reality environment, assembling sequence of Sheng Chenging and assembly path information are saved in database the most at last.Fig. 5 is the assembly interface under the reality environment.
Get back to the Pro/Engineering software environment then, according to assembling sequence that obtains and assembly path information, click the Submenu Items of assembling cartoon making, assemble animation, and be saved in local computer by the user with the animation file of mpg form by the secondary development program making.The Submenu Items of clicking the assembly process card design ejects assembly process card design webpage, at first is logon information, through after the authentication, can edit operation card.Fig. 6 is the operation card design interface based on WEB.And imported the assembling animation file.After design was finished, the technologist promptly finished the three-dimensional assembly technique design to the database submission form.
In operation site, pass through the touch-screen display access server by operating personnel in client, and login system, select required operation card to browse to technical papers inquiry back, three-dimensional animation provides broadcast, stops, retreat, playing functions such as F.F. reach the purpose of on-the-spot teaching.
Claims (1)
1, a kind of utilization is based on the implementation method of the on-the-spot teaching of the three-dimensional assembly technique file of WEB, it is characterized in that it comprises the set-up procedure of three-dimensional assembly technique design client, the response process and the erecting yard client teaching process of server end, wherein the set-up procedure of three-dimensional assembly technique design client is meant:
In the technological design client, read geological information and the assembly information that designs a model by the second development interface function of technologist by Pro/Engineering three-dimensional CAD design software, and deposit the assembly information database in, importing to reality environment again assembles or dismantles product model, and carry out real-time interference and collision and detect and obtain final assemble sequence and assembly path, assembly path is by the volume coordinate point expression of series of discrete, and step-length can be adjusted by the user; Described assembly path is a series of set that can describe the discrete point of part model spatial pose, and described spatial pose comprises position and rotation information, and available homogeneous matrix representation is:
Wherein the attitude of T1 descriptive model is represented X, Y under the part coordinate system, the vector of Z vector under the assembling coordinate system respectively; The displacement of initial point on X, Y, Z direction under the assembling coordinate system of part coordinate system represented in the displacement of T2 descriptive model respectively;
Then, the assemble sequence and the assembly path information that obtained according to the last step, make the assembling animation of assembly process by the second development interface function of Pro/Engineering, and the assembling animation file of derivation mpg form, by the Internet/Intranet access server, open the assembly process card list of Web browser display server feedback, literal table area on the assembly process card list is edited according to the work step content by the technologist, and select pairing assembling animation file under each operation, after finishing, the literal form editor of each operation promptly submits the assembly process card list of finishing to server;
The response process of server end is meant:
Server end is handled the assembly process card list of submitting to, deposit the operation number of assembly process card in database as primary key, automatically the assembling animation file of uploading is encoded, and code clerk preserved as assembling animation file name, will identify the operation number of assembly process card and corresponding one by one being saved in the database of code clerk of assembling animation file accordingly simultaneously;
Erecting yard client teaching process is meant:
Client at erecting yard, the assembly manipulation personnel are by the Internet/Intranet access server, after authentication, opening webpage inquires about the assembly process card, and the assembly process card of need selecting is browsed, the assembly process card comprises explanatory note part and assembling animation part, wherein assembles animation accordingly and is play by the Window Media Player player control of embedded web page, reaches the purpose of on-the-spot teaching.
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Effective date of registration: 20100719 Address after: Yudaojie Nanjing 210016 Jiangsu province No. 29 Co-patentee after: Nanjing Chenguang Group Co., Ltd. Patentee after: Nanjing University of Aeronautics and Astronautics Address before: Yudaojie Nanjing 210016 Jiangsu province No. 29 Patentee before: Nanjing University of Aeronautics and Astronautics |