Be based on the process designing of spare parts CNC Machining of CAXA

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CAXA is to be in production process of domain of current numerical control and machining and mould design, extensive already use CAD/CAM software, it is to compare software of popular a kind of CAD/CAM now. Use this software, can replace the computation with manual trival process designing, reduce the mistake of the program, shorten process designing time, improve work efficiency and process designing quality, effective assurance the treatment precision of the spare parts. It is OK still to use this software imitate machines a process, contrast machines quality, checking cutting tool is to pass to cut or be interfered, and can generate numerical control code automatically, can use in CNC Machining directly. Foreword is current, product of software of CAXA series CAD/CAM/CAPP had included the automatic process designing that reachs the device such as mill of cut of numerical control car, line, sculpture, numerical control, machining center from design of 2 dimension plot, three-dimensional hypostatic design, procedure design product of software of 20 many series, enclothed manufacturing industry informatization design, craft, make and run 4 big fields, the PLM software product such as the CAD that owns own intellectual property, CAPP, CAM, DNC, PDM, MPM and solution, enclothed manufacturing industry informatization design, craft, make and run 4 big fields. While CAXA is offerring the digital informatization solution that tall sex price compares for manufacturing industry enterprise, dedicated at raising the convenient sex of software product, practical, adaptability. CAXA series software has rich data interface, the graph between software but dash forward change each other now, also can exchange data with software of current other CAD/CAM. Among them CAXA produces an engineer not only have the NURBS freedom with accurate hypostatic modelling, powerful feature curved surface modelling and curved surface substance are compound modelling technology, still can offer two axes to come for the spare parts contrail of control of technology of the CNC Machining function of 5 axes, treatment, treatment is emulated and general postposition handles module, can generate the G code of machine tool of of all kinds numerical control. Have rough machining, code to be read instead, change the function such as knife and management of cutting tool library automatically. Can provide statistics of treatment technical data at the same time, facilitating production is organized and manage; Good treatment technology control and code optimize a function, make orbit more reasonable, code efficiency is taller. This software still has the following characteristic: ① offers the way of accurate cutting tool that 2-5 axis spare parts machines, support high speed treatment; ② can be direct online frame, cutter track contrail generates on entity and curved surface: ③ offers the CNC Machining way of a variety of rough machining, finish machining, filling treatment and chamfer and aperture; ④ provides complete cutting tool library and treatment parameter library, particular intellectual treatment can improve process designing efficiency substantially, one day learns process designing; The powerful postposition that ⑤ embraces is handled, can offer CJ code document for a variety of machine tools; ⑥ adds the contrail of the code that voluntary code, handiwork writes process designing assistant, grand program code newly to emulate, can have the validity of code of desired effect card; ⑦ can generate cutting tool, clamping apparatus and subassembly graph and graph of cutting tool method, output all sorts of craft news lists. Technology of 1 CAMCNC Machining 1.

1Technology of CAMCNC Machining of CAMCNC Machining overview is library, clamping apparatus is built to build library, NC to build model and fact to rest in cutting tool on the foundation with compositive modelling, the machine tool is built to machine an environment in the computer, set parameter according to machining technology program, the actual cutting process of simulation machine tool, undertake cutting tool interferes an examination, make NC code file finally, namely G code, input machine tool completes spare parts treatment. Its key technology is as follows: ① has geometrical model to machining a spare parts: Of library of ② clamping apparatus build, of cutting tool library build reach call mediumly in emulation cutting process: Of contrail of ③ cutting tool create the setting with treatment parameter; ④ imitate treatment tries cut a course, hand-in-hand travel cutting interferes an examination; ⑤ revises cutting tool method; ⑥ postposition is handled, the C code that generates place to use numerical control system machines a file to use all sorts of craft news lists. 1.

The news of 2 spare parts geometry that make an engineer realize CNC Machining CAXA to make form of engineer to in an attempt to generate with CAXA are a foundation, use interactive conversational mode, in the geometrical trait that the work that be added assigns on computer screen, define relevant treatment parameter, undertake data processing by the computer, method of dynamic indication treatment, output NC code data finally, especially the emulation cutting function that it provides, can imitate treatment environment undertakes cutting, check cutting tool to whether be interfered. If the process that realizes CNC Machining with CAXA production engineer pursues 1 is shown. The 2 craft that are based on CAXA to produce an engineer machine the flow chart that graph 1 CAXA makes an engineer realize CNC Machining process 2.

1CAXA production engineer makes formative the software of CAD/CAM unifinication CAM that production engineer of main function CAXA is union of appearance of substance of a curved surface, hypostatic modelling basically has drawing, rotate, guide move, the diagnostic modelling means such as model of lofting, cent: Curved surface modelling provides measures of a variety of modelling of NURBS curved surface, can generate complex curved surface through a variety of forms: Offer a variety of curved surface to edit a function, the system supports entity and method of modelling of compound of complex curved surface, application is designed at complex part or the mould is designed. 2.

The technology that spare parts of 2 pairs of treatment has craft analysis and the choice that machine parameter are based on CAXA to produce an engineer supports, the selection process that undertakes on numerical control machine tool the spare parts machines craft analysis and treatment parameter, complete design of workpiece model model above all, use curve, curved surface and hypostatic modelling function, have three-dimensional treatment data build a model, use at conveying workpiece. Build the three-dimensional data model of contented CNC Machining, realize the design of three-dimensional and hypostatic modelling of complex part. Undertake designing the job to machining an environment next, below the premise that designs in program of the technology that finish namely, parameter of numerical control machine tool is finished to install on the computer, cutting tool component builds library, cutting tool to assemble, of semifinished product build, the purpose is the treatment environment that builds a three-dimensional work. Arrange sound technology finally and the cutting tool with appropriate choice and decide its cutting parameter, reasonable arrangement craft considers spare parts appearance and treatment precision, prevent a spare parts to be out of shape, improve treatment quality. Use first thick hind essence of life, the technology program such as L lonelies after the face first: Of cutting tool make exhaust likely change a knife less, the knife is changed again after same cutting tool scooping up finishs all content that this cutting tool can machine, decrease idle stroke and the frequency that change a knife, improve work efficiency. 2.

The grounds of 3 cutter track contrail that make a part need to machine the appearance characteristic of the spare parts and craft requirement, use CAXA to make what offer in the engineer wait for tall, scanning, guide move, the treatment method such as parameter line, use different treatment method the hypostatic part that agile make choice of needs to machine, input relevant data parameter and requirement, the rough machining that makes a part quickly and finish machining contrail, cutting tool contrail and method of cutting tool cutting. Cutting tool contrail shows a knife namely actually the file of information, it is containing the information of the contrail that a series of cutting tool move and treatment. The parameter such as precision of the machines craft parameter to still have treatment besides the mainest 3 essential factor row spacing of cutting tool, treatment and mental allowance undertakes installing. These parameter and setting machine what affect a machine tool directly efficiency and treatment quality, answer to be a purpose in order to improve efficiency to rough machining, assure to stay at the same time have enough finish machining surplus, what can choose craft condition to allow is bigger cut deep, row spacing and feed rate. It is when finish machining assure surface roughness of precision, surface and form the requirement of tolerancepublic errand, should choose taller cutting speed, lesser cut deep, row spacing and feed rate. After cutting tool contrail is generated, can need to generate according to the user include the cutting is numeric craft detailed account related this contrail, make machine content be clear at a glance. The following should notice when undertaking cutting tool contrail generates: The cutting tool contrail that ① generates should satisfy the treatment of the spare parts ask quite; ② chooses simple cutting tool contrail as far as possible, avoid redundant contrail and the occurrence that repeat orbit, reduce idle stroke draw the spare time that be like labour: Surplus of thick finish machining of ③ reasonable setting, reduce the operation of cutting tool contrail and processing time; ④ uses auxiliary function correctly, stop in crucial dimension and Lv of significant position take an examination machine detect link. 2.

After the imitate of contrail of 4 cutting tool machines cutting tool contrail to generate, the emulation function that uses CAXA can undertake to the spare parts of 3 axes hypostatic emulation imitate is machined, whether does interference exist in using an examination to be machined actually, cut too, emulate comparative function is used to be able to contrast with different color after finishing treatment quality, whether to accord with design requirement in order to check orbit. Edit to what finish machining contrail still can undertake orbit and optimize. Via imitate treatment can in time discover a problem, contrail of modification cutting tool reduces a mistake, avoided to machine the happening of the accident actually, reduce material to use up, improve manufacturing efficiency. 2.

The postposition processing of 5 programs and treatment of transmission classics imitate affirm after according with treatment to ask, can run postposition processing, choose reasonable machine tool and system to generate code of NC numerical control, systems of a variety of commonly used numerical control are contained to be able to offer an alternative oneself in CAXA postposition processing, corresponding the postposition that numerical control equipment should choose correspondence handles an order, OK to the systematic postposition user that do not have undertake add and be installinged according to oneself need. To generated code the file still can use module of process designing assistant, it has convenient code to edit a function, support guides the contrail of the code, code that writes by hand and grand program code is emulated automatically, can have the validity of code of desired effect card. Support the mutual postposition changeover of a variety of system code, implementation machine program is shared in the program on system of different numerical control, the function that final news report transmits, through RS232 abundant the mouth can realize the code each other between numerical control system and process designing software to pass, input the code of the spare parts in the machine tool, after should operating personnel outfit to place parameter of cutting tool of good machine tool of good work, setting and coordinate only, can have the treatment of the spare parts. The treatment of bottom of coke of Nextpage3 CAXA implementation 3.

The curved surface modelling of bottom of coke of 1 modelling train of thought is more complex, it has 5 identical shares. With entity modelling cannot be finished, the reseau face in using CAXA to create function of the engineer's powerful curved surface modelling so will come true. Tectonic finally (the cube of LOOxlOOx50) , cut out the part that does not need, with respect to the sunken model pitch that can get we ask, if pursue,2 are shown. Graph antrum of sunken model of 2 coke bottom 3.

2 treatment train of thought is first-class basis of finish machining of line of tall rough machining, parameter the appearance characteristic of this exemple, be hard to undertake rough machining with average milling machine, and the function that creates an engineer to be able to be machined to curved surface with CAXA, do not need to create entity, also can generate cutting tool contrail. Classics analysis, because coke bottom is sunken the shape of whole bodily form of model antrum is relatively abrupt, so rough machining is used wait for means of tall rough machining. Means of this kind of treatment generates orbit simple, can faster purify is many semifinished product, improve treatment efficiency. Be opposite with means of parameter line finish machining next curved surface has precision work among sunken model antrum. Mark of this cutting tool Ren that machines means is according to the reseau when curved surface is generated the curve is generated, to curved surface treatment has higher quality. (The contrail of cutting tool of tall rough machining such as L) . Choose " treatment " , " rough machining " , " contour line rough machining " , appear " parameter of contour line rough machining is expressed " dialog box, in " rough machining parameter " the setting is shown like plan institute in option each parameter. According to the radius of the smallest curvature of curved surface, choice milling cutter is R5 ball knife, annulus cuts means treatment, perpendicular next knives, finish machining surplus 0.

3mm. If the off the rails mark after finishing pursues 3. Contrail of collect thick cutting tool, click right key to choose " conceal " command, conceal rough machining contrail, so that observe the finish machining contrail below. Graph 3 wait for contrail of cutting tool of tall rough machining (2) finish machining, contrail of cutting tool of parameter line finish machining. Choose " treatment " , " finish machining " , " parameter line finish machining " , appear " parameter of parameter line finish machining is expressed " dialog box. The content in the watch installs parameter line to machine parameter. The parameter that cutting tool and other parameter press rough machining not set. Attention: The parameter line of curved surface is two direction, want reasonable alternative. Choice edge is circumferential after directional parameter line, if pursue,get orbit 4. If pursue,orbit gets after the line 5. Graph contrail of cutting tool of finish machining of 4 parameter line (annulus is cut) graph contrail of cutting tool of finish machining of 5 parameter line (radiative) 3.

3 contrail are emulated, postposition handles a choice " treatment " , " orbit is emulated " after the cutting tool contrail that collect should emulate affirms, can open emulation module to undertake to cutting tool contrail entity is emulated. Examine without by accident hind, choice " treatment " , " postposition is handled " , " generate G code " command, play piece " choice postposition file " dialog box, fill in name of treatment code file " coke bottom is machined " , click " save " . The cutting tool contrail of the treatment that collect makes, affirm by right key, play a treatment code file to save instantly can. Machine craft sheet according to needing to still can be generated. Use process designing aids hand module, string together a cause for gossip to show numerical control system and code to deliver through RS232, input the code of the spare parts in the machine tool, can have the treatment of the spare parts. 4 last words introduce the builds a part geometry model with CAXA series OK and fast, convenient software, generate place of numerical control machine tool quickly to need code to shorten process designing time, improve process designing quality, have the authorized strength of numerical control program to complex part especially, enhanced the security of the validity of the program greatly, together with uses imitate treatment, reduced manufacturing cost, improved work efficiency. Author: Ji Ling of Duan Ruiyong Yan CNC Milling