Ban gold digitlization production technology and its application

5, not smoothness is less than 0.

05~0.

15, ban gold the precision requirement of curved edge height is H +0.

2-0.

1. And rely on the imitate quantity such as example to coordinate harmony tool appearance error to often be amounted to 0.

2~0.

3mm, local be as high as 0 even.

5mm, want to promote technology of Ban gold figuration the standard, ban gold production digitlization is inevitable choice. Make methodological photograph compare with other treatment, ban gold makes digitlization having more complex technology difficult problem. Above all, ban gold the appearance is complex, laminose makings, production process includes to issue the many working procedure such as makings, figuration, its digitlize a definition to include the definition of spare parts itself not only, more include process define and optimize. To achieve accurate figuration, if why considering plasticity to be out of shape,undertake digital-to-analogue of craft of semifinished product definition, figuration is defined on the foundation of the element such as spring back of characteristic, figuration, how to solve Ban gold of the mould in making face deliver become very complex with the problem such as control. Next, ban gold figuration is plasticity is out of shape process, what go up as a result of physics is nonlinear what bring not the uniqueness, uncertainty that cannot go against the sexual craft such as the gender to go up, in a lot of factor that affecting quality of Ban gold figuration and manufacturing efficiency, can what complete ration holds is not much. The 3rd, process of Ban gold figuration is one-time, figuration process is completed inside shorter time. Pilot requiring in figuration process basically is the process parameter such as figuration force, temperature, the geometrical parameter such as coordinate of and rather than, control difficulty is greater. As a result of the instability of material function and random sex, it is very difficult to make craft parameter design and figuration process are controlled accurately. Accordingly, need to be controlled from definition of figuration technology design, production model, mould face with design, process imitate and optimize integratedly wait for a respect to develop research, form implementation complex Ban gold the digitlization of accurate figuration makes integral solution. Gold of Ban of base of production technology of Ban gold digitlization digitlization is made is to considering plasticity to be out of shape quality of characteristic, figuration asks to wait for element foundation to go up, it is a method in order to digitlize a technology, through reasonable production model digitlization definition, mould digitlizes a design to make, optimized treatment craft parameter and figuration process are controlled accurately, make do not need to machine or need a few treatment to be able to satisfy quality requirement only after spare parts figuration, its process sees a picture 1. Ban gold base of digitlization production technology includes the following field. (1) Ban gold craft digitlization designs a technology: With Ban gold production model information is a basis, finish computation of parameter of production instruction design, craft, generate Ban gold workshop to process the productivity craft document of the spare parts. Through the craft such as parameter of data, typical to function of Ban gold material flow, craft knowledge undertakes accumulating, knowledge is shared inside a large number of experience and enterprise of test data translate into, likely knowledge is extracted to be used at design of technology of Ban gold figuration from inside the knowledge base in passing technology of intellectual put sb in a very important position to make a process in Ban gold, raise Ban gold craft to design efficiency and figuration quality. (2) Ban gold production model defines a technique: Ban gold spare parts is comprised by many working procedure to the figuration process of finished product spare parts from semifinished product, the semifinished product of next material process and the workpiece model of the model that discharge appearance, figuration working procedure and spring back amend a model to waited to make production model jointly. The exact definition of production model is the basic basis that has figuration process and mould design, controlling process of figuration of spare parts nicety. To Ban gold spare parts, need to consider hardware data, be out of shape the element such as character, build the special consideration tool of semifinished product and craft model, process designing of design of the outfit that it is labour, craft parameter design, numerical control provide data source, in order to satisfy the need of figuration of spare parts nicety. (3) Ban gold figuration mould design and production technology: Stiffness of Ban gold spare parts is small, rubber pocket hydraulic forming, envelope pulls form, profile to pull curved, conduit to bend, the figuration craft such as strike out form, must be made with the figuration pattern that reflects spare parts dimension and figure, in order to assure the accuracy of its appearance and dimension. Difficulty depends on to avoid figuration flaw (spring back, corrugate, burst) , realize accurate figuration, mould appearance and final part figure are not same. It is a basis in order to make a model, apply the technical measure such as numeric imitate to build mould face and dimension amendatory to optimize a technology integratedly, assure accurate figuration. (4) Ban gold process designing of figuration numerical control and technology of device control character: Equipment of figuration of Ban gold numerical control already got applied extensively, equipment of figuration of gold of Ban of a few keys all used numerical control to change, if mill of the feed below numerical control, numerical control pulls pipe bender of form machine, numerical control, numerical control,pull machine of ball of gush of curved machine, numerical control to wait. The numerical control of equipment of Ban gold figuration is changed make manualer figuration raises manufacturing efficiency, precision and product adaptability greatly. Pull figuration of bolus of form, gush, numerical control to pull the device such as the turn to envelope, needing pilot basically is the process parameter such as figuration force, time, the course uses for many times to experiment on the tradition " collection return form " the method gets controlling a process, cannot get used to the requirement that improves treatment efficiency and quality. Adopt the form of document of program of analytic and of all kinds device control character, development makes the tool that numerical control dictates automatically according to craft parameter, realize the accurate control of the automation of numerical control process designing and equipment. Ban gold gold of Ban of core of digitlization production technology in digitlizing production process, all sorts of information all are conveyed with digital form and store, be delivered inside the each business section such as the technology that makes in Ban gold through the network, production and exchange. From the imitate with the tradition the quantity is carrier to change to what be the production mode of carrier with digital amount, core depends on 2 respects: It is to face craft catenary to digitlize a definition to make a model on one hand, design the basis that builds with numerical control code as craft, tool; It is to craft knowledge undertakes the library is mixed building on the other hand use, prop up as what information defines, build thereby measure a definition with the number, transfer the technical system that gives priority to with control. The quantity delivers the 1 number that is based on production model to be in with control Ban gold design model to final part move in form process, wait for an element as a result of the influence of function of the material in figuration process and spring back, figuration Ban gold final figure puts the part of mould appearance and design in certain deviation, is not design model is simple deliver. Production model and design model are 2 of same target different shares, apply to 2 different level. In be based on imitate quantity to transfer the Ban gold that give priority to in production mode, ban gold the geometrical appearance of each link does not have workmanship process exact digital definition, the spare parts makes accuracy rise hard. Ban gold design model is accurate described final figure and measure, but did not consider Ban gold the mediacy of process, inextricability design information to create the contradiction that delays develop. After order of affirmatory working procedure and content, production model is consideration craft element, if the graph is shown 2 times,use the spare parts appearance that with imitate the quantity regards carrier as in traditional production pattern and dimension information, the digital amount that Nextpage is based on production model is delivered with control be define workpiece model and craft model through facing process -- move form to tooling -- create numerical control program -- with the number the quantity is delivered to numerical control equipment a such collateral digitlization make a process, combining the next makings such as a model model, figuration craft model, figuration, CAD geometry model in examining to accuse form node each to be used at figuration mould directly at semifinished product character actually design of design, inspection man outfit, production instruction design, ; Be based on the digitlization model of tool, can make in example, the mould is made in keep given from beginning to end tolerancepublic errand; If the graph is shown 2 times,consider, the digital amount that is based on production model is delivered with control be define workpiece model and craft model through facing process -- move form to tooling -- create numerical control program -- with the number the quantity is delivered to numerical control equipment a such collateral digitlization make a process, combining the next makings such as a model model, figuration craft model, figuration, CAD geometry model in examining to accuse form node each to be used at figuration mould directly at semifinished product character actually design of design, inspection man outfit, production instruction design, ; Be based on the digitlization model of tool, can make in example, the mould is made in keep given from beginning to end tolerancepublic errand; After waiting for an element to be amended directly, consideration spring back undertakes the mould is designed; This was eliminated from examine the error that standard equipment equips to measure a certain number of delivered link intermediate to cause to the imitate of the spare parts again to the job, reduced the effect of factitious not certain factor, changed those who turn over second-round exam fault to make way, come true thereby nicety, fast the production with low cost. The 2 Ban gold that are based on technology knowledge gold of process design Ban the much element sex of the process of phyletic and various, figuration that reachs its figuration craft decided Ban gold make rely on the experience knowledge that accumulates in be carried out for a long time, ban gold process design is the process with intellectual concentrated demand. In Ban gold digitlization is made in, besides job of subdesign of use CAx system, still need Ban gold to produce intellectual support at the same time. Right already knowledgeable put sb in a very important position includes knowledge to build library and knowledge to use 2 primary processes. If the graph is shown 3 times, be based on Ban gold of knowledge to make element define is pair of Ban gold production domain knowledge undertakes the library stores building, in Ban gold in digitlizing production process, information of spare parts of gold of Ban of applied system basis retrieves from inside the knowledge base already had knowledge and make knowledge returns, fashion the solution of the problem, the new knowledge that founds at the same time arrives newlier ceaselessly in the knowledge base. On the foundation that designs a large number of survey to craft of enterprise Ban gold, undertake to knowledge of Ban gold technology classified form shapes table chart, decompose further to main type knowledge framework of knowledge base of Ban gold technology is established after be information; Be collected to knowledge and put in storage, define term of domain of Ban gold craft above all, all sorts of production instruction knowledge, figuration craft parameter are founded to design mould of knowledge, figuration to design knowledge to wait for content on this foundation. Use base the framework of Web undertakes administrative to knowledge, distributed environment facilitates technologist consults, choose, amend and accumulate ceaselessly. Representative application case spare parts of costal region of casing of hydraulic forming of rubber pocket of spare parts of 1 casing costal region is the component in plane airframe framework, loading affirmatory aircraft appearance and bear the double task of pneumatic load. The structural element of spare parts of casing costal region includes celiac board, curved margin, strengthen a nest, strengthen groove, reduce aperture, cave in to wait. By geometrical appearance cent is sharp turn by the side of the turn by the side of turn of curved edge of curve of edge, protruding, sunken curve, the part that has pneumatic appearance demand has firmer precision demand by the side of the turn. Use the digital amount that is based on production model to deliver a method, the design of appearance of mould of rubber pocket hydraulic forming (see a picture 4) the figuration craft model in relying on production model is not to count a part directly primitive digital-to-analogue. Figuration craft model considered the factor such as the spring back of the spare parts, give out correction plan and correction reference value, right model face and dimension undertook be correctioned reasonably beforehand. Be arranged through amending those who design knowledge to spring back of spare parts of casing costal region and store, build spring back of spare parts of casing costal region to amend a model to design a knowledge base, support what spring back of spare parts of casing costal region measures to forecast. In order to make the data source that the model is process of hydraulic forming of rubber pocket of spare parts of casing costal region, changed those who turn over second-round exam fault to make way, simplified the job that the mould designs, reduced the effect of factitious not certain factor, improved the efficiency that the mould designs, can assure the precision after spare parts figuration at the same time, improve the quality that the spare parts produces, the nicety that implements a part, fast the production with low cost. The predestined relationship that 2 profile play spare parts of the profile in structure of product of curved figuration aerospace to have bridge of casing, costal region He Changheng spare parts, it is the main structural member that makes product framework. Strengthen casing to be with missile exemple, this kinds of spare parts is missile transverse bear power cell, besides maintain the appearance that play a body, its main function is to bear the transverse concentration that bombs a body load, because missile product is right,the requirement of spare parts intensity makes spare parts wall large, material hardness is big, be hard to figuration. Through developing the process that pull a turn accurate figuration and intelligence control a technology, build digitlization to help curved system, if pursue,5 are shown. Means of parameter of job of over all dimension of appearance of the material character that bends wollens according to pulling, geometry, mould, machine tool, to load, attrition is lubricant circumstance, combinative plasticity is mechanical design a knowledge base with craft parameter, computation pulls curved craft parameter, according to computation parameter creates CNC Machining program automatically, in order to controls numerical control to help process of curved machine figuration, this technology already controlled spring back part precision by 1.

2 ° rise to 0.

2 ° , realize figuration of nicety of profile spare parts. Last word digitlization is contemporary the core that production technology develops. Gold of aerospace product Ban phyletic and various, structure is complex, have collective manufacturing character already, have respective craft characteristic again, production model and technology knowledge are Ban gold the core place that digitlization makes. As a result of the characteristic of Ban gold craft its achieve the difficult point of digitlization, ban gold nicety makes a technology develop need to change a such processes to join cheek by jowl from project of research of basic research, application, achievement, change a course through long own research and project, the Ban gold that introduces a few equipment, software to be able to form implementation nicety figuration by no means digitlization creates technical capacity. In recent years, the country is immanent scientific research of national defence foundation, civilian machine is special wait for project support to fall, link the development of type product, already broke through multinomial and crucial technology, mastered accurate figuration technology to lay a foundation in the round for our country. The number measures expression and definition, it is the basis that design of technology natural resources and process design further. Its action includes to be used at parameter of tooling design, craft and numerical control programming. CNC Milling