Those who be based on CATIAV5 model antrum spare parts is three-dimensional advocate model and NC treatment

Basically discussed model of antrum spare parts three-dimensional build model and numerical control to emulate treatment. The module of Part De Sign that uses CATIAV5 realized the three-dimensional model of the spare parts, the numerical control that used Machining module to implement a part emulates treatment, make cutter track way, the interference in discovering treatment process and cut an issue too and undertake in time adjustment, CNC Machining program can be created after achieving a requirement, improve manufacturing efficiency thereby, lower defect rate. CATIA workstation version is the market on aerospace industry has the CAD/CAM software with top rate. Of the CATIA PC version as new version roll out, the group of a lot of world-class already began to use new CATIAV5. Outside dividing industry of traditional car, aerospace, shipbuilding, if the 3C electron industry such as SONY, SANYO also used CATIAV5 widely. Outside the powerful design function that provides besides itself place, CATIA still can manage relevant software to undertake with product lifecycle compositive. 1 model of antrum spare parts three-dimensional build a model 1.

The CATIAV5 of 1 the method that build a model that is based on CATIAV5 builds modular module is a system that build a model. It can help engineer apace undertake notional design and detailed design. Through defining the between different component maths in the design the relation makes the requirement of the user and design tie tie rise. In build a model in this one module, the bag contains entity to build model, feature to build model, free form to build model and user to define the applied module such as the feature oneself, there is respective function between each module. The its basic method that build a model includes body element law, scanning law, curved surface to build model, hypostatic operation and appearance feature modelling to wait. Graph 1 1.

2 model the modelling of antrum spare parts one model the geometrical appearance of antrum spare parts is shown 1 times like the graph, body of whole spare parts is main by bottom antrum two much comprise spare parts board, housing. Undertake to its below the Part Design module of CATIAV5 three-dimensional build a model. In this one process, the body element law in applying CATIAV5 integratedly to establish modular method, scanning law, curved surface builds model, hypostatic operation and appearance feature modelling to wait for a method, finish this one model of antrum spare parts three-dimensional build a model. After the substance that mixes the negative of the spare parts on half with powerful modelling function first is built, be opposite again part of its curved surface undertakes building a model. As a result of model the brim of antrum is comprise by many curved surface, the curved surface that uses the curved surface function with powerful CATIA to if the graph is shown 2 times,be built first so, what enter entity to build a model to undertake simple drawing can get 3 are shown is like a graph next is hypostatic. CATIA can change pair of spare partses to undertake operating between each module conveniently. 2 model the NC of antrum spare parts is machined 2.

1The core job of process designing of numerical control of law of unripe set prescription of contrail of NC cutting tool is to generate cutting tool contrail, become its disperse the knife next dot, via postposition processing creates CNC Machining program. CATIACNC Machining module uses definition and program of administrative CNC Machining, make use the part that three-dimensional line draw a frame round or hypostatic modelling design complete, can use 2.

The treatment of CNC Machining technology of 5 axes of 5 ～ comes out. It offerred facilitating application and the graphical interface of facilitating study, suit next use to face the situation that produces the spot very much. In addition, the banner technology of CATIA, the technics of version of together with V5 and DELMIA (program of a kind of of the company that amount to all alone production process and simulative software tool) what the number machines an environment is close together and compositive, can satisfy the need of office process designing well. Accordingly, CATIACNC Machining is production activity of harmonious office and manufacturing site well means of settlement. 2.

2The process designing of basic idea NC of NC process designing is arrive from part drawing the whole process that obtains CNC Machining order. Its main task is the knife that computation machines a knife dot (CL is nodded) . Knife the dot takes the node that is cutting tool axes and cutting tool surface commonly. Cutter shaft vector gives out even in much axis treatment. The graph is alternant and automatic the geometrical appearance scale that process designing uses the graph of CAD software to edit functional general spare parts arrives on the computer, make graphical file, call module of numerical control process designing next, use interactive method to appoint the place that is machined on computer screen, input corresponding treatment parameter, the computer can undertake necessary mathematical processing creates machine program automatically. (1) the NC knife course that is based on a feature generates methodological parameter to changed diagnostic formative development to promote the cutting tool contrail that is based on a feature to generate a method to consider. Its fundamental is: The appearance feature group that the every treatment procedure of the spare parts can see form this part in couples has the total of treatment. Feature of so whole appearance or appearance feature constituent did not complete the treatment of the spare parts namely after treatment. And the NC code of each appearance feature or appearance feature group can be generated automatically. What diagnostic treatment is helpful for implementing CAD, CAPP, NCP and CNC system is comprehensive and compositive, realize the two-way flow of information, for CMS and even collateral project (CE) laid good foundation. (2) the mode taking a knife of polygon of protruding of plane of a few kinds of of CNC Machining mode taking a knife: If pursue,the treatment of outline of planar protruding polygon basically is used 4 (A) shows personal form way and graph 4 (B) annular law. Personal look doctrine goes knife pattern taking a knife certainly after initial drop and way of cutting tool movement, cutting tool along appoint direction to be machined with parallel trochoid means in whole treatment plane, the distance between photograph adjacent contrail is decided by cutting tool diameter. Annular mode taking a knife is the circumjacent screw type that cutting tool edge adds workpiece the ground is progressively to add work center to move, the distance between photograph adjacent contrail is decided by cutting tool diameter. The cutting means that planar mill machines: To model antrum treatment basically is used cut law and annulus to cut a way all right. Cutting a law to take knife pattern all right is cutting tool is machined at the line segment of direction of make choice of along parallel, arrive when treatment model after antrum is attrib border, cutting tool can be used carry the interrupted cutting way that the knife returns quickly, also can use reciprocating type the means of successive cutting, to model the islands in antrum, must make carry knife processing; Annulus cuts a law to walk along knife mode to be able to be divided for Inward Helical and Outward Helical, be like a graph respectively 5 with the graph 6 are shown. Nextpage 2.

3 model emulation treatment of the CAD three-dimensional model that the NC of antrum spare parts machines CATIAV5 to be able to implement a part and CAM makes settlemented the emulation of process of geometry of geometrical modelling, spare parts effectively to show wait for a problem in same software platform. Below Modeling module compose builds model the CAD file of the three-dimensional model of antrum spare parts turns into its directly undertake CAM is machined below Manufacturing module can. (1) model the generates cutting tool contrail to include makings of rough machining, finish machining, incomplete to machine contrail of the contrail of CNC Machining cutting tool of antrum spare parts. This literary grace makes the same score bottom milling cutter to undertake rough machining with D=20mm, R=4mm (if pursue 7) ; Use D=12mm, R=0.

4mm undertakes curved surface is machined; Use D1=10mm, R1=0mm, D2=5mm, R2=0mm to undertake model antrum is machined (if pursue 8) ; Use milling cutter of head of ball of D=2mm, R=0mm to undertake clear root is handled next, generate cutting tool contrail. (2) examine the imitate with peculiar CATIA of cutting tool method emulates a function, can undertake trends of three-dimensional sense of reality emulates treatment, if pursue 9, in emulation process, cutting tool has dynamic treatment along defines treatment contrail, we master the process of CNC Machining OK and intuitionisticly, judge the successional, rationality of cutting tool contrail, whether to put in cutting tool interference, sky to take a knife, bump into the circumstance such as the knife, and knife computation is correct wait. After generating treatment to take cutter track way so, with the function of desired result of cutting tool course of CATIA software, can very what examine cutting tool way conveniently is correct. (3) the creates CATIA program of program of processing of CNC Machining postposition outputs mode: Seesaw pattern mode generates NC code; Batch processing mode produces APT source document; Batch processing mode generates NC code; Produce the NC document of HTML format. The postposition processor that uses CATIA generates postposition to handle an order (NC code) , length of be confined to, code of NC of article cento part is as follows: 3The article passes epilogue be opposite model the 3D of antrum spare parts advocates model and NC treatment, introduced to use function of CATIA software CAD/CAM not to have the characteristic that seams union. Can realize the process designing of much coordinate numerical control of complex form spare parts conveniently on one hand, create the NC program of efficient, high accuracy; On the other hand, can come through cutting examination the quality of contrail of desired result cutting tool, in time discovery between cutting tool and spare parts be cut too and owe cut. In addition, through fictitious treatment the process is emulated can discover the machine tool moves each ahead of schedule the interference between component and cutting tool and collision, interfere the position of collision happening and corresponding NC block quickly certainly, facilitate to NC the program undertakes modification, rise to machine efficiency actually greatly thereby, shorten then production is periodic. CNC Milling