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1、外文原文CAD System for Modular M achine ToolBecause the aggregate machine-tool manufacture product market life reduces unceasingly,the user request aggregate machine-tool design manufacture cycle is more and more short. The traditional aggregate machine-tool design method is from bottom to top design pr
2、ocess, first carries on the single components design, then the assembly . Such design method is unable from the integrated function to design the complete machine structure, creates the new product development cycle to grow, cannot promptly provide satisfaction in view of users demand the product. T
3、herefore, uses the advanced design technology and the method, speeds up supposes counts the speed, improves the design quality, reduces the development cycle, is enhances the enterprise competitive power, the change at present the engine bed industry present situation effective way. The author acts
4、according to the aggregate machine-tool the design characteristic, unifies advanced supposes counts the technology, carried in three dimensional design software platform UG two times has opened sends, has established the aggregate machine-tool CAD system. This system has covered the entire process w
5、hich the aggregate machine-tool designs, may enhance the rated capacity effectively.1 system function module outline Above aggregate machine-tool design process is one from the functional design to the detailed design process, but at present had the aggregate machine-tool CAD system greatly uses is
6、designs from the components to the assembly design process, cannot Man Zucong the conceptual design to the detailed design request. We according to the engine bed design method and the step, in can carry on the analysis to the system merit in the foundation, has divided the system function module, h
7、as established based on the modular design theory aggregate machine-tool CAD system. Should be the series has built all levels of module template storehouse, enabled the user to be possible to do the design work in the corresponding platform, might realize the top-down design, holds the distribution
8、al design.This system is (i.e. UG) as develops the platform take three dimensional design software Unigraphics. In not only UG contains formidable CAD/the CAM/CAE function, but also provided a set to use in UG re-development software tool UG/oPEN Kit. Including UG/oPEN GRIP (graph interactive proced
9、ure), UG/OPEN API (application program interface) UG/oPEN UIstyler (user interface design connection), User tools (user from defines tool) This system synthesis has used these development kit, translates the environment take Visual C+6.0. This system divides into 3 parts: 1) master control library o
10、f subroutines, including application procedures and so on friendly database data management; 2) the three-dimensional model template storehouse, the package includes the aggregate machine-tool all levels of module correspondence the three dimensional assembly model base; 3) number according to store
11、house, including standard part data and so on parameter data, design calculation data databases. Figure 1 is the system structure drawing. Aggregate machine-tool (AD system user interfaceThe aggregate machine-tool design characteristic is the project design request design revision is convenient, spa
12、re part quantity is big, the restraint relations is complex. Its design process mainly has following several steps: 1) formulates the craft plan, the definite components the craft content as well as the method which completes on the aggregate machine-tool, decides the cutting tool type, the structur
13、e type, quantity and the cutting specifications and so on; 2) acts according to the designation the craft plan, definite engine bed disposition form and structure plan; 3) and carries on the three-dimensional model parametrization design, the design calculation, the craft plan in the designation man
14、-machine contact surface and determined the engine bed disposition form, in the structure plan foundation, carries on the plan blueprint design, including is processed the components working procedure chart, the processing schematic drawing, the engine bed relation dimensional drawing and the produc
15、tivity computation card.1.1 master control library of subroutines Master control programs including with user interactive visualization contact surface and each kind of computation disposal procedure. This system develops the platform take UG18.0, uses UG/OPEN UIstyler and User the Tools contact sur
16、face development kit design with the UG user interface style consistent visualization contact surface. This system master control program also includes each kind of design, the computation, the data reduction program, the system software architecture uses the modular design, each module realization
17、certain function, has the independent structure, alone translates the movement. Mainly includes following several parts: 1) the cutting specifications computation module in the aggregate machine-tool design, needs according to the cutting specifications to determine the feed force, the cutting torqu
18、e, the cutting power, take the choice sliding table, the transmission electrical machinery as well as the design main axle, the biography moving parts jig design basis. This system provided an automatic computation cutting specifications program module, the user has lost the choice material and the
19、processing method through the man-machine interaction contact surface on and so on, the automatic computation cutting specifications, carried on the part choice and the design for the user. 2) processes the schematic drawing design module processing schematic drawing is in an aggregate machine-tool
20、design process important part, is determines the aggregate machine-tool axle box body the design and the transmission system design two parts. The headstock design module in the headstock overall assembly model design platform, accepts the user input through the interactive contact surface the desig
21、n data. The headstock body design process is transfers the headstock body components and acts according to the parameter renewal model; The transmission system design process is the transmission overall system which the transfer basic transmission model combines unceasingly forms needs. Disposes str
22、uctural style headstock which the user needs. 1.2 three-dimensional model template storehouseThree-dimensional model template storehouse including aggregate machine-tool all levels of module three-dimensional model graph storehouse. This system according to the modular design principle, in to the ag
23、gregate machine-tool functional analysis foundation in, the aggregate machine-tool will divide into the different level, each level including a series of modules. The system according to the aggregate machine-tool modulation design characteristic, all establishes the corresponding three-dimensional
24、model template to each level module. The user may defer to own needs to choose the template, the input parameter, the renewal model, carries on from the top design. In the graph storehouse three-dimensional model is controls the model according to the user input parameter the renewal. The model para
25、meter divides into the main parameter and the secondary parameter. In establishment components model time, must carry on the analysis to the components structure, determined can reflect the components important function structure the main parameter, the determination secondary parameter and the main
26、 parameter relations. The user from the interactive contact surface input main parameter, the system the main parameter took the inquiry corresponding complete parameter, transmits again gives the model, carries on the model the renewal.For example, regarding the hydraulic pressure sliding table, th
27、e main parameter is the sliding table width. After the system accepts the user input the main parameter, inquires the sliding table other parameters in the database to renew the entire model. All levels of module graph storehouse divides into 2 kind of types: Single components and unit. Regarding si
28、ngle components, model including structure size parameter, regarding standard letter and standard part, model intake conditions generally only then or minority several, like side foundation intake conditions namely for side foundation model. Regarding unit, except structure size parameter, but also
29、includes the assembly restraint parameter. In this system parameter graph storehouse design process, the assembly model has used UG the WAVE technology, will assemble the model to form 1 control structure according to the design rule, will define the geometry information and the parameter in among w
30、hich will need, will cause in the aggregate machine-tool all levels of template assembly model between the sub-module geometry characteristic all will be the whole correlation. Through the user input connection parameter, while renews part, between the part maintains the assembly restraint relations
31、 which 11 decides. For example the hydraulic pressure sliding table, the power box, the side foundation compose drill truncate the processing unit assembly model, is defers to the standard specification to carry on the disposition, after has determined the sliding table model, intake conditions only
32、 then for sliding table floor width. The system accepts this entrance host parameter, take this as the inquiry condition, in the standard letter specification database, obtains the connection screw, the hydraulic pressure sliding table, the side foundation and the power box complete parameter separa
33、tely, and renews the model, this time the sliding table, the foundation and the power box still maintained certain assembly restraint relations. Three-dimensional model graph storehouse including following several parts: 1) the aggregate machine-tool standard part graph storehouse deposits each kind
34、 of standard letter, the standard part and the basic spare part parametrization three-dimensional model. In view of each kind of standard part, like the gear, the bolt, the power sliding table, the power box, the column and so on establish the parametrization the graph storehouse. 2) processes the s
35、chematic drawing graph storehouse processing schematic drawing graph storehouse including to complete each kind of standard letter like link, the guide sleeve, the main axle and the general cutting tool three molded relief maps which the processing schematic drawing needs. 3) headstock design graph
36、storehouse including parametrization three dimensional molded relief maps and so on main axle module, drive shaft module, headstock body, gear. The headstock transmission system may divide into 6 basic transmission models, in the headstock design graph storehouse including these 6 basic transmission
37、 model template, and may the torque and the rotational speed which provides according to the user, recommends the gear the modulus. 4) the engine bed overall assembly model graph storehouse system the processing content which can realize according to the aggregate machine-tool, has provided the over
38、all assembly model graphStorehouse, provided a series of design platform for the user, the user has been possible according to own to need to choose the appropriate platform to carry on the aggregate machine-tool the design. Aggregate machine-tool overall assembly model graph storehouse including ho
39、rizontal type one-sided aggregate machine-tool, vertical one-sided aggregate machine-tool, horizontal type two-sided aggregate machine-tool, compound expression two-sided aggregate machine-tool, horizontal type three aggregate machine-tools, compound expression three aggregate machine-tools. 1.3 des
40、ign database This system uses the data bank technology to manage the design data. The system selects Microsoft the Access establishment database, Visual the C+ development database visit procedure. In the data deposits data and so on design calculation, standard part parameter standard, uses the sta
41、ndard letter as usual the specification, the aggregate machine-tool cutting specifications, the guidance parameter and so on. The user may inquire the design material database conveniently through the interactive contact surface. 2 system main characteristics 2.1 man-machine interaction contact surf
42、ace this system which fuses completely with the UGSystem contact surface use UG/OPEN UIstyler and the UserTools technology development user interface, enable the CAD system to have with the UG contact surface completely consistent style.2.2 software systems use the modular designSoftware architectur
43、e to use the modulation, may realize the function according to the module to divide into several software submodule block, transfers these software module by the master control program. Uses the modular structure the software system, is advantageous for the maintenance, has the open characteristic.
44、May need does according to the user to the graph storehouse and the database must adjust, conveniently carries on the expansion to the system function. 2.3 system deference aggregate machine-tool modulation design concept Aggregate machine-tool modulation design is acts according to the user the dem
45、and, but in the functional analysis foundation, designs the performance, the structure each different the function same a series of may exchange the functionality unit and some special-purpose, the independent part, then combines it Cheng Dantai the engine bed or the flexible processing unit. This s
46、ystem unified the CAD technology and the modular design, has established the aggregate machine-tool modulation template storehouse, has realized the computer assistance aggregate machine-tool modulation design. 2.4 this system has covered entire process this system whichThe aggregate machine-tool de
47、signs including the processing schematic drawing processing design module, the aggregate machine-tool overall assembly design module, the headstock design module, has nearly covered the complete process which the aggregate machine-tool designs. In the aggregate machine-tool design work may the effec
48、tive enhancement rated capacity. 3 conclusion This system based on the aggregate machine-tool modulation design technology, each link which designs in view of the aggregate machine-tool, has established the aggregate machine-tool computer-aided design system in the UG software platform. This system
49、may use in the entire process which the aggregate machine-tool designs. The system has openness, may aim at the actual situation to carry on the expansion. 中文译文组合机床CAD系统由于组合机床制造产品的市场寿命不断降低，用户要求组合机床的设计制造周期越来越短。传统的组合机床设计方法是自下而上的设计过程，首先进行单个零件的设计，然后再进行装配。这样的设计方法无法从整体功能上设计整机结构，造成新产品开发周期过长，不能及时针对用户的需求提供满意的产品。因此，采用先进的设计技术和手段，加快设计速度，提高设计质量，缩短开发周期，是提高企业竞争力，改变目前机床业现状的有效途径。作者根据组合机床的设计特点，结合先进的设计技术，在三维设计软件平台UG上进行了二次开发，建立了组合机床CAD系统。该系统涵盖了组合机床设计的全过程，可以有效地提高设计效率。1 系统功能模块概述上述组合机床的设计过程是一个从功能设计到详细设计的过程，而目前已有的