Fast mould network makes the research that serves platform and development

Time:2023-06-20 14:14:55
Click:137
source:OURLOVE CNC Machining

The article puts forward and built fast mould network to create service platform. This platform is the tool that prop up with the computer network of rapid development and IT, build to produce made environment in coordination through creating a company together in chime of long-range user, service center, realize production resource share and the advantage of technical natural resources is complementary, shortened the production of the mould makes cycle. Numerous check study shows this system is new to raising medium and small businesses the rapid development of the product has very great potential. Competition of introductive manufacturing industry had taken the period that the price, quality gives priority to, after 90 time the first essential factor that to the response of commercial opportunity speed becomes competition. The mould is the crucial factor that affects new product to be developed quickly. Because the technology is compositive,be based on the RT technology of RP degree tall, change rate to physical prototype by digital prototype fast, with use technology of conventional numerical control to make mould photograph compare, production cycle is former 1/10~1/3 only, manufacturing cost is former 1/5~1/3. Consequently, the fast mould that is based on RP produces the heat that already made current pattern manufacturing industry, be mixed to apply by extensive research. This technology is judged to be the whole world by notes of American car project first of 15 great skills, get the wide attention of global manufacturing industry. Because fast mould makes need RE, CAD, CAE, RP, the support of the equipment such as RT and professional technology. And the RE in RP&M, RP, RT installation cost is big, the quality demand to industry technology personnel is higher at the same time. General medium and small businesses invests the rapid development system of the new product that builds the whole line very hard. Then a batch of service centers that make RP prototype and RT pattern technically for the client with respect to emerge as the times require, but the rapid development technology that each centers have the whole line completely very hard, general and only the partial technology natural resources in this technology, the productivity center home that has this kind of technology additionally is only also ten, because this also decided the new product with domestic major company is developed quickly,finish through different ground, traditional different ground develops pattern (personnel flow, blueprint flow, product flow) the advantage that can make new product develops a technology not to have fast, low cost quickly, restricted the play of RP&M technology advantage. Current, a kind of brand-new thinking, the rash club engineering that emphasizes serving quality, becoming production enterprise to win the basic strategy that the whole world competes in 21 centuries, this is strengthened with respect to requirement production enterprise right " service " the research of the problem, develop quickly in digitlization production technology namely while, must not have digitlization service seam the ground compositive in design and creating an environment what reach an industry. So, consider and developed fast mould network to create service platform. 1, the composition of compositive production system is based on fast mould production system of development of RE/CAD/CAE/RP/RT fast mould comprises by 3 archetypal subsystem: Digital prototype, physics prototype and fast mould make a system. The main function of digital prototype is the digital model that fast compose builds three-dimensional entity. If be the innovation design that has a pattern, use Pro/Engineer, the three-dimensional CAD software such as Unigraphics or Solidworks, model of direct and tectonic three-dimensional number. If be objective model, use try a project instead (RE) , obtain three-dimensional CAD model. Alleged beg a project to be objective change the digitlization technology related CAD model and geometrical model to rebuild namely instead technical floorboard. The measure that builds model of three-dimensional CAD number through seeking project form instead is: The three-dimensional disperse sampling of ① objective; The pretreatment of ② data; ③ three-dimensional curved surface reframes; The examination of ④ CAD model and amend. Three-dimensional coordinate dot is collected and of three-dimensional curved surface reframing is the crucial technology that seeks a project instead. The means that three-dimensional data collects basically has: 3 coordinate measure a way (CMM) , law of laser scanning law, industrial CT, nuclear magnetic resonance (MRI) go with the layer image law. These methods have respective characteristic and applied range, specific choose why to plant measurement technique the appearance feature of the object, precision asks and should apply a purpose to decide according to be being measured. After the digital model that achieves objective, can be opposite in three-dimensional CAD software digital model undertakes modification or design again. No matter be innovation,beg obtained CAD model instead through objective, all output with STL format, as the input that shapes quickly. Shaping quickly is a kind of when development of 80 time later period rises brand-new and advanced production technology, technology of its collect CAD, numerical control technology, laser technology, new material technology is equal to a suit, data is passed below the control of the computer cumulative method is direct build CAD number model three-dimensional and hypostatic model quickly, be considered as major breakthrough when will nearly 20 years create a field. It is different from traditional purify figuration, be based on disperse however / accumulation principle, prototype of direct will three-dimensional figure is changed into physical prototype. Its biggest characteristic is the physical prototype that can make an aleatoric and complex appearance quickly. Current, shaped to already developed ten kinds of technique quickly, compare the method with commercial already maturity to basically have among them: Smooth solidify is stereo shape (SL) , alternative laser agglomeration (SLS) , melt deposit shapes (FDM) , the substance that fold a layer is made (LOM) , three-dimensional print (3DP) etc. Fast mould is production technology of a kind of when rise in the development on RP technology base new-style mould, the manufacturing cost that it can reduce a mould greatly and production cycle. The fast mould that is based on RP is made have direct way and indirect method commonly two kinds. Direct patternmaking law is to use RP technology to make a pattern directly, basically have SLS, LG, the method such as PDM and 3DP. Indirect patternmaking is with RP prototype serves as appearance the method of indirect production mould, differ character according to what using material, indirect patternmaking law can be divided provide two kinds big with hard patternmaking to make soft patternmaking provide, each kinds have different method again. Fine decompose the patternmaking of the balata that it is silicon, epoxy resin patternmaking, electroform patternmaking, metallic spray patternmaking, nicety that is based on RP to cast again (model of pottery and porcelain, disappear model, dissolve model, plaster mold) reach black lead electrode the method such as model of abrade EDM production steel. 2, the technological process that serves platform and the technological process that its function designs fast mould network to create service platform are: Long-range user logs onto the WWW portal website of the service center, make the task request through its are being referred to the service center after service platform is registered, the service center undertakes an analysis to the task of long-range user, it is in order to decide to undertake advisory a service, still undertake production a service. If be to undertake production a service, service platform plans the craft that start implement undertake to this task craft plans, the has manufacturing cost as a result consideration that plans according to craft and production make cycle beforehand appraise, give user abecedarian quoted price through long-range quote system. Classics user is preliminary after affirming, can undertake with the service center online or business affairs leaving a line negotiates, if the contract did not clinch a deal, in stocking the client's information client relation to manage module (CRM) , become potential user. If the contract clinchs a deal, the electronic contract in starting platform of electronic business affairs manages module, have formal contract sign, in stocking the information of the user CRM, become formal client. To the production task of formal client, platform will undertake production the analysis of the task, plan according to craft implement the result that analyses a program to this task, decide whether this service center has job of each individual event this craft ability, if this service center has this craft capacity, undertake executive by the service center, the information in making production the process stocks production task management and module of manufacturing process monitoring. In order to offer the inquiry of the monitoring that long-range user undertakes manufacturing a course and manufacturing schedule. If this service center does not have this craft capacity, need to produce the support of the enterprise in coordination. Service platform will be started make a server in coordination, undertake cooperating with production the program of the enterprise, spend according to the credit of state of the workmanship ability of each enterprise, equipment and enterprise etc, the task allocation that cannot finish to the service center arrives to be made in coordination individually in the enterprise. Service center chime is passed with production enterprise online or business affairs leaving a line negotiates, make an enterprise in order to decide whether accept this job in coordination, if be not accepted, plan afresh; If accept, undertake online contract is signed. In stocking the news that creates a company in coordination CRM module. The news that makes an enterprise make production the process in coordination refers module of monitoring of production task management and manufacturing process in time, in order to offer the inquiry of the monitoring that long-range user undertakes manufacturing a course and manufacturing schedule. Make the technological process that serves platform according to fast mould network, union digitlizes the functional requirement of long-distance service, fast mould network makes service platform be differentiated to be on the function: Technical research, typical case, information seeks advice, business affairs of ASP tool market, client management, electron, production service, in coordination tool and systematic navigation module of 9 big functions. The technology considers to basically offer fast mould to develop the relevant and professional knowledge in making to the client. Basically include technical brief introduction, bibliographical reference, site to link 3 sections. Long-range user can get fast mould quickly to develop production ABC through technical brief introduction, the link that can pass bibliographical reference and site understands relevant content deep further. Typical case passes the development of the fast mould of a few typical spare partses to produce a method namely, reveal fast mould to make to long-range user in actual medium representative application, give long-range user with specific guidance. According to the complex degree of spare parts and workmanship, cent is simple, medium wait and complex 3 kinds of typical case. The technology studies and typical case basically provides self-help type service to the user. Information seeks advice from module to basically offer RE, CAD/CAE, RP, the technology of RT seeks advice, sufficient play service center creates medium major and talent dominant position in fast mould development, help client solves the specific problem in real work. ASP tool market basically includes RE/RP/RT craft to plan implement, STL file is checked implement, the direction that make is optimized implement, prop up automatic maker, statified optimize implement. RE/RP/RT craft plans implement basically wait for a condition with the time that make according to spare parts amount, precision automatic and decision-making give best RE, RP, RT implements a method; The client is checked through STL file implement have desired result to what submitting STL document by oneself and have automatic repair to the blemish of the model; The direction that make is optimized implement, prop up automatic maker and statified optimize implement the program of specific technology parameter that basically offers pair of RP to the user. Register and revise what Nextpage client management basically includes client information, the management of the inquiry of archives of the maintenance that has a client oneself, client, after service. It is OK to register and revise module what pass client information the information of will long-range user stores service center, can realize an user to be revised remotely of information to its; The maintenance that has a client oneself basically is the user that cannot have a service through Internet to those (contact business through the means such as phone, fax) of information safeguard; The management of the inquiry of client archives and after service basically is a service center to be mixed with user business dealings in the future undertake institute of client relationship government is used. Electronic business affairs basically includes online business affairs to negotiate, of the online quote, time that make beforehand appraise and electronic contract govern 4 functions child module. Through client of implementation of video conference system and service square online business affairs negotiates; Estimate through cost implement estimate with time implement realize online quote and manufacturing cycle beforehand appraise; Electronic contract management basically realizes online contract to sign, the management such as the inquiry of long-range user contract and memory. Production service is managed by production task implement, make chime of monitor of process of server, production make industry technology ability run 4 extraordinary service together in coordination can child module composition. Production task manages implement basically realize the task register and management, spare parts queues up to wait for a service; Making a server in coordination basically is the task allocation that cannot finish this service center arrives to be made in coordination individually in the enterprise, compose builds fictitious business, trends optimizes resource, realize production resource share, the greatest potential develops each RE/RP/RT equipment ability; Producing process monitor basically is to make sure the whole process that be finished in time and makes of pair of user tasks to production carries out monitoring, use monitoring dot to come often win the newest task in finished state that creates a company in coordination, handle in time to the accident that appears possibly, utmost ground lowers error rate. The craft capacity that creates management of industry technology ability to basically create a company to cooperating with in coordination and equipment use a state to have integrated government, think to make a server provide the basis of the program in coordination. In the activity seeking advice with information in electronic business affairs, production service, the fact when client and service just need those who have news communicates, this basically is passed in coordination the video conference system in the tool, electron is white board transmission system of system and file will come true. Finally, still can realize online help, use guideline and problem to solve through systematic navigation module wait for a function, make long-range user uses this system adroitly as soon as possible, eliminate a system to use the difficulty issue in the process quickly. The functional module that includes according to serving the technological process of platform and system, the plan of total construction frame that compose proposed following fast mould network to create service platform and research and development course. 3, the implementation of technology of key of platform of production service of fast mould network (1) the data set of RE/CAD/CAE/RP/RT system is become in fast mould production process, data shedding had main effect. But the output of RE is IGES format commonly, and what RP uses is STL format, what CAD uses is IGES, DXF, the format such as STEP. Of format of this kind of data skimble-scamble created a system hard compositive. The system needs what have data pattern often to change, cause the loss of precision and efficiency. Accordingly, this system is used those who be based on STEP format to have data is compositive, use STEP format to be able to improve archetypal exterior quality on one hand, on the other hand, because STEP data bulk is small, more appropriate and long-distance service. Mix to the efficiency of CAE to raise RE precision, developed the software with RE and direct and compositive CAE, will beg data of measurement point cloud to pass flowing, section, butt joint, Boer operation instead, protect the processing such as precision cut down, data of the cloud that use a site generates STL reseau directly, differentiate according to proper standard and algorithm by STL reseau again for finite yuan of reseau (like criterion of double-faced algorithm, Delaunay, umbriferous criterion) , the juniorest travel is finite yuan of analysis. RE must realize as compositive as the height of CAD ability to develop both function effectively, developed the model of three-dimensional CAD geometry that is based on RE answer compose software. (2) the task that the trends of RE/RP/RT much technology that is based on Web plans to be referred according to long-range user, service platform must plan to give best RE, RP, RT implements a method, make cycle of costing, long-range quote, production production in order to lay follow-up fast pattern beforehand appraise and dynamic resource optimize place to use. Because of particular to production job, the technique that fast mould production process uses and craft course are different, a complete production line is different technique segment (RE, RP, the different technique in RT) (the SL in the technology that be like RP, SLS, LOM, FDM, the silicon balata patternmaking in RT technology, epoxy resin patternmaking, electroform patternmaking, metallic spray patternmaking, nicety that is based on RP is cast etc) combination, it is disparate that all sorts of different technique set amount of the quality that makes the product that give, material, maximum, and at present RE, RP, each technology has RT a variety of technique, every kinds of technique besides the project characteristic that has itself (quality of precision, surface, material, cost) beyond, in executive RP&M compositive make when be being combined with other technology craft, have its again comfortable the project characteristic that match (if its are archetypal when RP and RT craft combination of material disappear gender, heat expands the characteristic, endophilicity with different compose material, electric conduction and electroanalysis character) . Below network environment, need of this program process is planned by the craft that serves platform implement finish automatically. 3 selector that are this development to be based on ASP mode namely " RE Selector " " RP Selector " , and " RT Selector " . According to spare parts amount, precision and the condition such as the time that make automatic and decision-making selection goes best RE, RP, RT to implement a method, they offer a client with form of WWW portal website. The workmanship that is aimed at fast mould is decision-making with optimize the characteristic that is much program, much target, built index to evaluate a system above all, use the smallest mean square that increase advantageous position to differ a law to undertake much target is optimized next. Consider the impact of feature of spare parts geometry to technology index at the same time finally, the warehouse of generation type regulation that established relationship of map of feature of geometry of expressive spare parts, unified managing and safeguard what realize pair of databases and knowledge base with database management system. Process of whole technology program is carried in the server by Java Servlet by achieve type to plan to come true. (3) the computation that the costing of production of RE/CAD/CAE/RP/RT much craft that is based on Web and long-range quote system are based on RE/CAD/CAE/RP/RT much craft to produce cost is a very complex process. The task type that refers because of long-range user place is different (objective is begged instead, appearance of analysis of CAD model, CAE, function, fast mould) , the complex level of the task is different (simple, medium, complex) differ with delivery cycle, the element that causes an influence to produce cost is too much, because this is fast,the computation of mould production cost is a many target, dynamic, optimize computational process. But, why to no matter long-range user is referred,plant task type, the no more than of totle drilling cost of fast mould is RE, CAD, CAE, RP, each overlay of individual cost combines RT. So, plan according to craft implement the result that plans to referring the task, calculate respectively the manufacturing cost that gives technology of each individual event, all individual craft that create the job to this next (the likelihood is RE+CAD+CAE+RP+RT, also may be CAD+RP+RT, or it is RP+RT, anyhow, it is RE, CAD, CAE, RP, the combination of RT each craft) undertake addition, get the manufacturing totle drilling cost of this task namely. To RE of individual process cost, CAD, CAE, RP, RT differs because of its principle, equipment, material, have different computational method again, but the quote of these technologies is OK undertake mathematical calculation according to the surrounds box, material price of the spare parts. For example, shape quickly to smooth solidify (SLA) , through producing the analysis of cost to its, can be a foundation with the handling time of the model, give attention to two or morethings is a few otherer at the same time minorrer factor, undertake costing [C=F(K, t);T=s+tf) + Ltn] . Shape quickly like LOM again craft, can undertake mathematical calculation according to the surrounds box, material price of the spare parts. To achieve long-range quoted price, still developed corresponding software platform, offer online quoted price in order to support to long-range user. (4) the computation of man-hour of production of RE/CAD/CAE/RP/RT much craft that is based on Web and production make cycle beforehand appraise is based on production to produce the analysis with similar cost, to the task that long-range user place refers, production makes total time is technology program implement the summation that each individual craft place that plans to referring the task needs time. Accordingly, the time that develops technology of each individual event estimates implement. Namely " RE Time Estimator " " RP Time Estimator " and " RT Time Estimator " . For example, to RP craft medium smooth solidify shapes (SL) estimation of the time that make is used be based on model geometry feature (be based on STL file one kind, the real industry standard of RP industry) the time that fast prototype makes smooth solidify estimates algorithm, the making time of the estimation model that uses the parameter such as area of bulk, active list and course statistic analysis to because always is fast,support a construction. (5) production task management and manufacturing process monitoring produce process monitoring to basically include to make inquiry of monitor of process of server, production and client plan serve 3 functions in coordination to making task management reach child module. Making a server in coordination is the production task that refers in the light of user place, according to its time and price ask, the task allocation that cannot finish this service center goes to each cooperating with to create a company. The service center is particular task branch RE, CAD, CAE, RP and RT, the certain that the time that last program comes out is these 5 kinds of tasks or a few and have sex plus all commerce time and mail the time of a flower, if such time summation is more than long-range user to ask in the time in production task, need to plan afresh, or feedback gives long-range user information, need long-range user to undertake readjust. The service center is in management of practical technology program and control, still must serve as a tie with following program principle: The credit of the enterprise is spent; The craft capacity that creates a company in coordination must disengaged; The task that the craft capacity that creates an enterprise to register in coordination and long-range user refer must match; Make the craft standard of the enterprise in coordination; Make industry technology quote in coordination as far as possible lowest; Long-range user and make company business affairs carry circuit to want in coordination reasonable etc. Because whole production process has in coordination in different ground to RP&M the service center, it is to press traditional artificial management pattern to undertake no longer to making the control of process and quality so, so the service center must use method of a perfect time, quality management and control and contract monitoring, make an enterprise need to refer the in finished state of the task in time the service center in coordination on one hand, undertake in order to lay the rate of progress that the client makes the task to its inquiring; Use monitoring dot to come on the other hand often win the newest task in finished state that creates a company in coordination, handle in time to the accident that appears possibly, utmost ground lowers error rate. Monitoring dot is in be being set in every to create a company specificly in coordination. 4, conclusion is current, this system already became form productivity to promote central investment to use quickly in northwest. The system moves good, realized enterprise and user " double win " , shortened the development of the mould makes cycle. For example, the development project of mould of face plate of machine of DVD of group of Sichuan long rainbow, whole project promotes center of center, Shaanxi mould engineering into form productivity quickly by group of Sichuan long rainbow, northwest 3 different ground develops an unit to comprise in coordination, make mode photograph compare with the tradition: Development made cycle shorten 60% , development expenses was reduced 75% . Carry out a proof, this system has a function all ready, dependability tall, moving stability, facilitating operation and safeguard, man-machine interface is friendly wait for a characteristic. Current world already was entered " informatization, knowledge is changed, globalization, commercialize " times. "Digitlization and network " already became the manufacturing feature with current most striking business. Of production enterprise and client be changed dispersedly and internationalization, what the market competes is intense change, put forward to create the demand of the service remotely. The author is made with the development of fast mould for setting, consider and developed fast mould network to create service platform, made beneficial exploration for the informatization of our country manufacturing industry, network. CNC Milling