Mould of rubber pocket figuration designs methodological research quickly
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source:MCGUFFIE CNC Machining
Regard plane Ban as gold one of main figuration methods rubber pocket hydraulic forming, have efficiency quality of surface of the spare parts after tall, figuration is good wait for an advantage. As the development of aircraft manufacturing industry, rubber pocket hydraulic forming is in plane Ban gold the proportion that holds in figuration is larger and larger also. As the development of CAD technology, be based on digitlization design and the support that digitlize production technology, the structural design that aviation industry uses the advanced technique such as CAD/CAE extensively already to realize mould of rubber pocket figuration and optimize [1] , from the mould three-dimensional model designs the numerical control production of the mould, digitlization technology raised the design of the mould and manufacturing precision, shorten mould design is periodic, raise an enterprise to manufacture efficiency, make industry of our country aviation enters the period of efficient production, seed profit production. As a result of aviation Ban gold amount big, type configuration of much, mould is changeful, mould of rubber pocket hydraulic forming still depends on the experience that designs staff greatly, the fast design of the mould already became a mould to design medium bottleneck. Raise a pattern specialization, standardization degree, the design efficiency that improves a mould already became the popular issue of current research, document [on the foundation of characteristic of structure of model of 2] analysis punch, use CATIA VBA technology, realized punch model parameter to change a design. Document [on the foundation that 3] is analysing characteristic of hydraulic forming mould, use UG platform, developed a mould to design a system quickly. The article is aimed at how to realize mould of rubber pocket figuration to design this one issue quickly, with plane Ban gold for the foundation, the Ban gold that put forward to realize a mould to design a need quickly taxonomy; Combine the characteristic of mould of rubber pocket figuration, put forward standardization, parameter to change a technology to devise medium applied method quickly in mould of rubber pocket figuration; Put forward to facilitate mould of rubber pocket figuration devises the data management method that the system uses quickly; Developed the mould of rubber pocket figuration that is based on CATIA2 second development to design a system quickly; Combined example to undertake introductory simply to the system. Mould of rubber pocket figuration devises a method quickly the rigid and concave and convex mould that mould of hydraulic forming of rubber pocket of characteristic of structure of mould of figuration of 1 rubber pocket writtens guarantee compose compares a tradition is simple, sell by body, cover board, tool commonly, fixed position is sold wait for composition. The design basis of body job face is a spare parts inside model face, cover board and body coordinate a design. The standard component of the mould is little, different Ban gold figuration mould difference is very big; Body and cover board work to be comprised partly by working section and blame, working section follows spare parts appearance and change, blame job section can standardize a design, OK parameter changes a description. Have on body and cover board assemble fixed position to sell, the tool is sold those who use sell aperture, the position that sells aperture and dimension can standardize a design, OK parameter changes a description. The tool is sold, fixed position is sold wait for much to be standard component; According to body volume different, rings is installed selectively on body, handle of the installation on cover board, handle of rings, cover board for standard component. 2 Ban gold classified Ban gold classification is the foundation that mould of figuration of implementation rubber pocket designs quickly and crucial link. Design of mould of rubber pocket figuration is a foundation with the spare parts, the appearance of the spare parts decided the configuration of the mould directly. Mould job face originates inside the spare parts model face, ban gold the structure is changeful the structural diversity that brought about mould of rubber pocket figuration. According to Ban gold gold of characteristic general Ban classification, implementation Ban gold systematization, the standardization that is helpful for realizing mould of rubber pocket figuration and parameter change a design. Curved edge kind Ban gold it is by the abdomen board face and curved side side are comprised for the most part, celiac board face is plane or be flat curved surface approximately among them, the existence on celiac board face has reduce aperture, strengthen a nest, strengthen groove, turn over the structure such as aperture; Bend the structure such as breach of the existence on side side, floor level; The appearance of celiac board face, curved edge the structural characteristic that number and the element such as the direction side the turn decide a mould directly. Ban gold classification according to the following 3 administrative levels undertake. Above all with Ban gold curved edge number is reference. Ban gold the working object that mould of rubber pocket figuration is by the side of the turn, curved edge the difference of several brings about the substaintial distinction between the mould. Be based on this, but Ban gold cent bends an edge for sheet kind, by the side of double turn kind, by the side of much turn kind reach special kind etc. By the side of different turn kind can refine an a lot of subclass again, if be by the side of odd turn kind Ban gold in, what the basis bends way of side side normal is different can divide again bend edge, sunken curve to bend curve of edge, protruding continuously the subclass such as curved edge, the existence that waits for a structure according to cave in, cut in each subclass can differentiate again for a lot of subclass. But, by the side of all odd turns kind Ban gold mould job face has only, this model the face is only curved limit kind Ban gold the basis that the mould designs. Ban gold classification holds on Ying Conghong view, classify ground floor can, design what curved limit considers only in the system quickly in the mould count and take no account of direction of normal of curved side side. Next, with Ban gold the direction of curved edge is reference. To bending an edge number is more than the Ban gold of 1, the structure of mould of figuration of rubber pocket of decision of the direction side the turn by the side of each turns. If be by the side of double turn kind Ban gold in, the existence side two turns is the same as to with different to two kinds likelihood. With the figuration object that to curved edge two bend side side is a mould, body face bends side side to design according to two; Different has the side side a turn only to curved edge is the figuration object of the mould, and when designing cover board, should consider to avoid allow another curved edge. Accordingly, be necessary with Ban gold curved frontier way is opposite for reference Ban gold 2 classification. Consult figure of celiac board face is classified finally. Ban gold one of main factors that the geometrical appearance of celiac board face also is decision mould structure, this classification is coordinated with two kinds of afore-mentioned methods use, regard two kinds of afore-mentioned classification as methodological complement. Mould of rubber pocket figuration needs to strengthen a structure a little, the geometrical appearance of celiac board face also is judgement strengthens a structure to need important level; Change quickly for what implementation mould designs with change accurately, the need when classification considers a pattern the geometrical appearance of celiac board. Need is designed to consider a design to strengthen a structure in the mould like cirque body spare parts, narrow chief body spare parts needs to consider a design to strengthen when the mould is designed base and strengthen termination to wait. The standardization that 3 moulds design quickly and parameter change the standardization that the mould designs and parameter is two crucial essential factor that implementation mould designs quickly, also be the main component that mould digitlization designs. As the development of digitlization, in the enterprise use PDM generally (Product Data Management) system. In the system of PDM, build standard component library and commonly used a library, standard data form is used when building a warehouse, can be conveniently between data in each subsystem undertake data is exchanged; Build standard component library and commonly used a library need is right standard component makes standardizing design and parameter to change build a model. The mould designs medium standardization to include the content of two respects: The standardization of the component dimension such as body, cover board; Fixed position is sold, the tool is sold, the standardization of the mould accessory such as rings. Above all, the standardization of the component dimension such as body, cover board. Although rubber pocket figuration kind mould dimension and structural difference are very big, pass pair of Ban gold classified analysis, the Ban gold to same kind, its mould structure has similar sex, can standardize the portion of structural likeness the design. The link that can standardize a design has: The ply of body, cover board; Work area dimension is not on body, cover board; The fixed position on body, cover board sells placement position; The fixed position on body, cover board sells aperture, measure the diameter of the aperture such as fiducial aperture. If body ply is commonly,the spare parts adds 5~10mm by the side of highest turn; Cover board is the smallest ply is not less than 10~15mm to wait in the smallest part commonly. Next, the standardization of mould accessory. The fixed position that uses in mould design at present is sold, the tool is sold, the much such as rings, handle is standard component, the development on the foundation that designs a system quickly in the mould can realize the standard component library of fast fixed position, pass this standard component library, design personnel can be in dialog box of a seesaw pattern implementation body, cover board, fixed position is sold, the tool is sold wait for design of major mould component; Because standard component library and mould design systematic confluence quickly, fixed position is sold wait for standard component to be able to be designed quickly not only, and OK and fast fixed position. Flexibility still should be had in process of mould standardization design. The position that sells aperture in order to locate is exemple, locate the position that sell aperture uses standardization design, fixed position sells opening position referenced and fiducial the brim of two photographs adjacent that is a mould, to the mould of body appearance regulation, be like rectangle or approximate rectangle body, mark fiducial value is used when standardization, sell Kong Ke to locate truly with essence of life; To the mould with irregular appearance, be like annular, close annular body, mark fiducial value is used likewise when standardization, the position that sells aperture produced deviation. Use same a pattern that mark fiducial value designs different type, the design is put in difference as a result, this kind of circumstance can add correction to amend. Mould standardization design is the basis that mould parameter changes a design. Pass pair of Ban gold classification, the mould standardizes a design, according to different mould model structure, use be based on a structure to make course way, build corresponding parameter to turn a model respectively. The draft of each component regards mould of this systematic lieutenant general as parameter change main target, at the same time parameter of dimension of three-dimensional and hypostatic part changes shirt-sleeve pattern; Spend the couple that spends with hypostatic parameter through draft parameter, parameter of implementation mould full measure changes a design, raise a mould to design precision. Draft parameter changed a design to break through the limitation that hypostatic parameter changes, make mould design has bigger flexibility, through controlling the element in draft, change mould appearance in order to get used to the change of spare parts appearance. Building mould parameter database also is a when mould parameter changes important segment. Pass this database, can inquire conveniently, revise, each parameter in deleting a mould to design. To improve the administrative efficiency of data, the mould the parameter of each dimension is worth, the measure value of standard component is put into the database. This systematic program wants several times to inquire a database in executive process, use this locality database and PDM to issue long-range database to be united in wedlock, can raise data to inquire efficiency, accelerate the traversal speed of software. Access database is installed in user computer, database of the Oracle below the corresponding program implementation PDM in adopting a system is time database of Access of newer this locality. This kind of method not only raise data to visit efficiency, and of convenient data update with safeguard. Nextpage4 designs medium alternant design to be developed to implement the most effective application program quickly, this system uses CAA C++ technology to undertake 2 times developing to CATIA, use this method to be able to realize the alternant design of user and system well. Interactive it is the necessary method that implementation mould devises quickly. Through undertaking alternant design to the interface of the product and behavior, mould of rubber pocket figuration establishs a kind of organic relationship between fast design system and user, can achieve the goal of the user effectively thereby. Alternant design is used at be being counted between system and user to be given as it is said, made sure the system changes a design quickly while, also assured to be changed accurately, intelligence changes a design. Seesaw pattern dialog box is the window in alternant design, should have an interface friendly, information content sufficient, operation is simple, answer wait for a characteristic neatly. Graph the 1 sheet in designing a system quickly for mould of rubber pocket figuration bends an edge kind dialog box of a of the mould seesaw pattern, this dialog box contained the voluminous data information that covers a mould originally, include body measure, sold type, diameter and position, the diameter of aperture and position. If the graph is shown 2 times,the system implements this construction of system. According to Ban gold structural feature Ban gold classification, again gold of will of all kinds Ban figuration mould standardization, parameter is changed, the work out goes out to it corresponding subsystem; In the light of Ban gold in exist generally strengthen a nest, reduce the construction such as aperture, the mould accessory such as handle of the rings that pattern of rubber pocket hydraulic forming needs generally, cover board, weave respectively the subsystem that gives independence; To facilitate the management of data, built parameter database. Graph the 3 below CATIA interface toolbars that develop for this system. The article is analysing the last word the means that mould of rubber pocket figuration offerred to be designed quickly on the foundation of characteristic of structure of mould of rubber pocket figuration; And in order to bend an edge kind Ban gold for exemple, use technology of CATIA2 second development, developed mould of rubber pocket figuration to design a system quickly. The achievement of this task runs from opposite directions not only fast design is having pattern of figuration of hair rubber pocket principal port, also provided a kind of means to develop other type mould to design a system quickly. CNC Milling