The development as technology of CAD, CAE and perfect, the application of recombine lifecycle theory, new rubber-plastic theory of treatment mechanical design and method ceaseless emerge in large numbers. Country and area wait in the United States, Europe, Japan, base at CAD/CAE/LCM (LCM: Life Cycle Management, lifecycle management) the collateral design of integrated system is academic, applying widely increasingly at rubber-plastic the design that machines machinery, production domain. Base devise a method at the conformity of CAE system in recent years, the three-dimensional CAD such as Pro-E, UG (CAD) the software of numeric computation simulation such as design software and ANSYS, Moldflow is in rubber-plastic the application that processes mechanical design domain is increasingly wide, this is base at CAE (the computer assists a project) the development of integrated design method of the system laid a foundation. For this, the research of the system of unifinication CAE subdesign that the country such as Japan, France had developed the functional module such as analysis of sex of CAD design, will numeric imitate, content to undertake conformity in succession works. This system designs module, nose by screw / data of module of imitate of function of database of module of mould design module, control system design, stock, design, test - module forms the function such as module of enumerated data contrast. Among them, base at rubber-plastic the newest progress that machines theory, screw design module, nose / the design that module of mould design module, control system design offerred standardization for the architect is directive, help an architect in order to be close to the form that parameter changes a design finish design job. And module of imitate of function of stock database, design makes an architect OK the stock circumstance according to the user, to designing the application of plan the effect undertakes computer simulation, design the feasibility of plan in order to detect. Graph 1 be research and development of Japanese Cybernet company is rubber-plastic the data of test of frame sketch map that processes mechanical subdesign system - module of enumerated data contrast is similar system of Home Wu Zhuan, the theoretical calculation result that already had design plan through be opposite and practical test result undertake an analysis, reach corresponding correction is analysed, in order to coach the design of after works. The advantage of this system is in at: Through applying newest research positive result, compose builds the CAE subdesign system of unifinication, promoted rubber-plastic and mechanical design efficiency. But insufficient place is: Using Wu Jin to design software of core of plan computation simulative all right basically is existing and finite yuan of analysis software, taller to theoretical foundation of the architect and computer standard requirement, this brought certain limitation to applied promotion of the system. Base the subdesign method at collateral project base the subdesign method at collateral project more demand difference that considered different user, on the foundation that devises plan in the standard, emphasize passing functional analysis, user to communicate the design that will realize special device and make. To shorten design, production cycle, reduce cost, method of this kind of design emphasizes designing plan to undertake functional module fractionize to equipment, pass modular the utilization rate that designs a method to raise existing standard part more as far as possible, reduce the design of special component, production cost. Carry out in the design in, emphasize the science between architect and user, architect and architect communicating, reduce design risk thereby, so that be inside the shortest time,finish design job. Collateral design system will design the pattern that institute of French INSA De Strasbourg- Lge Co raises the process differentiates to be carried out for design of functional analysis, products plan, mould, process wait for level. Level is analysed in the function, design the standardization setting of parameter of requirement, design through be opposite, make clear user demand, develop set base for what after add design works. In products plan phase, wait for design stage through design of notional design, material choice, function, detailed design differentiate, those who ensured the information between personnel, user is communicated related the design is expedite, decreased to duplicate work, reduced design risk. In mould design phase, the design process fractionize is designed for flow path, feed the part such as design of system of makings system design, cooling system design, other. Design of this one phase and the function that have a mould to design CAE system are basic and same. Level is carried out in the process, the parameter condition that the design plan and user draft to use equipment undertakes integration analysis, make be calculated with computer simulation, detect design program whether achieve use requirement. A lot of colleges of Nextpage home and research organization also are pursueing the research of relevant domain, grind gave out a series of applied sex achievement. Graph 2 be research and development of university of Hua Zhongke ability base the system of inject mould subdesign that Wu Mo piece changes a design. Graph this kind of advantage that designs a system is in the system of inject mould subdesign of 2 home research and development at in designing innovation the concept to combine traditional equipment to design a process, change through standardization, parameter, modular set, fashion scientific products plan technological process, improve design efficiency. But at present this kind of system applies Wu Mo to provide a design more, to the design at mechanical equipment, aircrew, by Wu She and element much, function is asked complex, the subdesign system that has actual application sex still is in research and development process. Base producing safe all along at breakdown and the subdesign method that safety analyses is a respect that takes seriously quite in industrial government, manage strictly besides aborning besides, the manufacturing machinery that makes appliance has certain safety to assure also can be manufacturing safety to offer assure strongly. The European Union is in early announced the series safety level that passes to machine machinery at plastic balata 1997, among them EN 1114-1: 1997 are to be aimed at extruder and the safe production level that push a product line technically. British sanitation and safe management board (HSE) also deliver product the series file related plastic treatment process, also emphasize among them discussed the equipment security that presses a facility. American scholar Robert Stone and Irem Y.
Tumer puts forward, in equipment lifecycle inchoate (namely design phase) undertake sufficient breakdown is analysed, can on the oldest rate reduce equipment to use hidden trouble and breakdown, raise equipment function to reach use efficiency at the same time. Accordingly, analyse the rapid development of technical theory as function, breakdown, in recent years, base cultivate an analysis at incident (ETA) , function - breakdown is designed (FFDM) , breakdown mode and influence analysis (FMEA) , function and fault tree analysis (FTA) a series of analysises that wait method, begin to be in rubber-plastic machine mechanical domain to get applied, progressively promotion leaves come. Incident tree analyses a method (ETA) it is a kind of analysis potential risk existence and its are likely the analysis of consequence is theoretical. Method of this kind of analysis uses the dependability in nuclear reactor the earliest in the design, begin to design medium applying in other industry along with after. This method emphasizes particularly on to design the influence of pair of product functions at analytic component, through be opposite the initiative incident consequence of a component begins the product analysis, get event of its after add stage by stage, most the function that after gets a part achieves status, reach malfunction the after influence to product function. The analysis that adopts pair of different design plan thereby is OK imitate gives whole system (product) functional circumstance and the probability that produce a certain breakdown, design other perhaps measure to promote a function through changing then, reduce the probability of breakdown happening. Graph 3 base the function of sketch map of products plan flow at FFDM method - breakdown devises a method (FFDM) be in recent years by American scholar R.
B.
Stone and I.
Y.
A kind when the person such as Tumer puts forward base the design method that analyses at product function and circumstance of congener product history. This method adopts the black box model that builds a function, equipment whole function the requirement is decomposed stage by stage a series of model of functional black box, get the particular function of the product thereby, product function and product breakdown carries the likelihood the mechanical design that similar product already had breakdown to contact implementation top-down. Since 2003 the design principle of FFDM and method are perfected ceaselessly, begin to apply in mechanical products plan. Wait as ETA, FFDM a series of design a method to be in with the analysis at old system, complex project originally rubber-plastic the application that processes mechanical design domain, for rubber-plastic mechanical design pointed out new development pattern. But at present this kind applies Shang Chuwu to study level, investigator basically is centered in Euramerican research organization, achievement is theoretical analysis and delibrate more, appear from the product that has actual application sex, still need period of time. CNC Milling