The most common in the treatment of numerical control milling of our country curve that be not a circle is elliptical, because this is not round curve to had made the key in manual process designing and difficult point, to this, the application of process designing of grand program nest in basically be being machined in the light of numerical control milling in this research machines medium real case to spread out an analysis in ellipse, what FANUC system CNC Milling machines elliptical grand program to write a process to serve as check study is important the dot that cut a person, the science of grand program in be being machined to CNC Milling used means to undertake treatise, the process is here medium, the item that notices to the need when grand program is written undertook elaborating, the application of process designing of grand program nest in combining real applied case to be machined to numerical control milling thereby undertook an analysis. 1, the highest expression form that the application of process designing of grand program nest in treatment of numerical control milling analyses process designing of grand program nest is application of technology of contemporary process designing, technology of this kind of process designing used technology of very advanced process designing technology, for instance of model of process designing of the choice of cutting dosage, maths build and machine cutting tool choose etc, these nest that machine a spare parts to had used grand program are written possess very high skill, it is especially in the spare parts treatment with a few very tall difficulty, the posture of collection of nest program language that adopts grand program relatively rose at efficiency of traditional automation process designing a lot of. Going up somehow because of this handiwork process designing should highlight than advantage of automation process designing, in application of actual nest process designing, ellipse is a kind of familiar process designing logo, the equation with because treatment of milling of this numerical control is medium elliptical course of need of personnel of technology of process designing of grand program nest answers all sorts of complex maths equation to alternate, just can be opposite ceaselessly thereby the nest process designing of elliptical program develops actual application. So called the collection that the grand variable program that grand program adopts nest namely has major uses program language, the program of process designing of this kind of nest and subprogram photograph are similar, can pass instruction of appropriative data code to undertake the real key of grand program takes nest in process designing process accordingly, this kind of nest the instruction code of grand program is said to make up the special performance that improves numerical control machine tool as nest, main purpose can have dimension or figure namely the spare parts of treatment of numerical control milling of specific law has expression through the nest programming language of concise sex, what so whole unit process of cargo bandling changes is readable take and can revise, the program of collection applies actually not only very extensive, and logic is rigorous have very strong common sex, the response of data instruction program that should compare automation of CAD/CA1VI software system to generate in the nest process designing of grand program in treatment of numerical control milling so is more quick, and very convenient. Be in normally in the program that CAD/CAM software creates, accord with of the address in program word is a relevant variable, so language of a program can be aimed at the hypostatic description of a logistic appearance only, below this kind of circumstance, programming language becomes lack versatility and flexibility. And process designing of grand program nest is medium in the treatment of numerical control milling that the article studies grand program is variable of a parameter, but the adjustment that can undertake grand variable according to actual assignment statement, call statement, loop statement and subprogram statement and branch statement to undertake assorted each other with nest program at the same time, satisfy the applied need of process designing of grand program nest in treatment of numerical control milling ceaselessly thereby. 2, the applied example analysis of process designing of grand program nest in treatment of elliptical face milling is shown 1 times like the graph, should study those who used 12cm to establish milling cutter to machine ellipse in the milling on FANUC-Oi system machine tool, deepness 2 Mrrt, build actual mathematical model through elliptical standard equation and parameter equation X = Acosa and compose of Y = Bsin A, the analysis machines a course, if the graph notifies the coordinate department that builds cutting workpiece 1 times, part X, y, the regarded this ellipse as the surface on the spare parts at 0 o'clock center of Z axis, the coordinate that installs numerical control machine tool in G54 register is, perpendicular milling leaving a sword undertakes besides the work that processes in milling, do not use radius compensation. Undertake NC process designing subsequently, axis of the center that establishs this ellipse respectively and cutting tool center, X the metabolic parameter quantity that directional included angle regards this system process designing as the program, this 3 person parameter span is in 0 360 degrees one between. In be being machined to milling of this numerical control through equation of above ellipse parameter, block of NC of grand program nest undertakes data process designing, if specific programming language code and command express 1 to show. The command language of process designing of grand program nest in the treatment of numerical control milling from inside expressing I can discover, the application of process designing of grand program nest in FANUC system is relatively wide, the means that can use MDI data process designing directly in machine tool of treatment of numerical control milling has collection to commanding a language, in addition of the command language of process designing of grand program nest in treatment of numerical control milling write can undertake in the computer directly, through RSN communication interface carries one 32 data to send the order of process designing as a result again in transmitting numerical control milling to process machine tool system, normally the circumstance falls, the grand program of process designing of grand program nest in treatment of numerical control milling can be divided for two large categories, one kind is the A class number that according to “GSS H the format of one ” of one R# writes one Q# of one P# occupies program language, additionally one kind is the programming language that the formula that adopts programming language of grand program nest and data parameter directly has, means of this kind of process designing and process designing of C language data are put in certain similar part. In afore-mentioned program languages, the function of language of avery kind of of process designing of grand program nest uses one H99” of “HO1 to undertake expression respectively, one ” of “# states programming language of grand program nest is medium a change of commonly used address that deposits parameter value is measured, this kind of variable includes the following kinds of common cases, among them the local parameter that one #33” of “#I represents grand order is variable, the storage that passes relevant data shows the metabolic case of data independent variable. 3, the applied advantage analysis of process designing of grand program nest in treatment of numerical control milling is in normally in CNC Machining, personnel of the technology when milling is machined often uses the component with specific to some subprogram to undertake in the light of the appearance of some part milling and deepness are machined, but the insufficient part with the applied certain existence of the subprogram, not only versatility not beautiful, and the relevant requirement of process designing of grand program nest in satisfying milling of current numerical control to machine hard, because this article passes the application of process designing of grand program nest in treatment of numerical control milling to have very strong versatility on one hand, on the other hand personnel of technology of data process designing can is opposite the classification that content of different treatment of numerical control milling undertakes differring, the package that has some kind common treatment feature for example is united in wedlock, the form that adopts model of maths be spreadinged out by the geometrical parameter information of treatment component next is built, meanwhile can according to this one kind is written to give code of corresponding programming language of grand program nest by the model parameter of treatment component, when actual numerical control process designing is operated, technical personnel need not is opposite programming language of grand program nest has numerical control contact, the ”] condition of 〔 of independent variable assignment that carries correspondence of place of relevant maths model simply however can is opposite relevant subprogram has corresponding change, because treatment of milling of this kind of numerical control is medium,the application of process designing of grand program nest overcame the trival, repeats process designing malpractice in traditional and artificial process designing. Be in usually, the product of mechanical spare parts that milling of numerical control of our country numerical control processes often is by stage of all sorts of circumgyrate faces, protruding, circle aperture and groove are mixed inclined plane is formed, have irregular complex curved surface rarely so, the regular curved surface to much for example the form that the standard equation of the cone, hemisphere and elliptical hemisphere aprametric model that can pass trigonometric function normally and relevant curved surface has relevant aprametric model is built, such is helpful for that set relevant parameter value and have operation of assignment process designing to certain independent variable. Need to repeat in this process because of personnel of technology of this CNC Machining write a variety of languages to command a program, increased the workload of technical personnel on one hand so, on the other hand very the management that goes against language of CNC Machining program and move, but the workload that the application of process designing of grand program nest in milling accusing to machine through logarithm in this research studied to reduce technical staff thereby, also improved the efficiency of process designing of grand program nest in treatment of numerical control milling greatly. 4, ellipse is in axis kind the applied example in the spare parts is analysed 4. If the graph is shown 2 times,craft of part drawing of steel of 1 45 date is analysed, spare parts of these 45 steel parts by ellipse and whorl of noise of columnar, channel of inside and outside, inside and outside and prejudicial wait for structural composition, cooperate differently to assist a spare parts by 3, there are dimension precision requirement and exterior surface roughness to wait for a requirement in this part component part, and the structure of whole workpiece model is very whole, accord with the requirement that numerical control milling machines completely. This integral structure outline of hypostatic component is complete and clear, and this spare parts is 45 steel component of the standard, have good treatment cutting sex so, do not have strict hardness and heat requirement standard in addition. 4.
The data of circumstance of measure of specific treatment technology of structure of 2 this models is expressed 4.
: of example of process designing of 3 grand programs? The process designing machine program of component of steel of date of?5 of lukewarm Yan of cook over a slow fire is expressed above all, pass the analysis of two afore-mentioned watches, discovery is aimed at complex craft component part to do not have as equal as circular arc milling cutting tool in treatment of numerical control cutting, it is so in this case, contrast of photograph of CNC Machining program is more complex, the circular arc whorl to 45 steel component is to be in elliptical face over, so the choice in cutting tool and the contrail of regular car whorl that ellipse should combine not only when moving move, the athletic contrail that should combine roundlet arc again moves, in afore-mentioned process designing, the key is the centre of a circle that should find ellipse and circular arc between change a relationship, find the some on ellipse and small circular arc to nod the correlation between thereby, be in next get whole the logistic changeover between 45 steel component concerns, write program of numerical control milling. Next, want the relationship between coordinate of accurate and affirmatory the centre of a circle and small circular arc, should ensure whole the elliptical whorl cutting of 45 steel component runs orbit accurate, must make the centre of a circle of elliptical element line and small circular arc connects line photograph parallel, in this case, the meeting in machining process of 45 steel whorl considering milling of numerical control cutting tool is risen by cutting tool fall rate and the influence that moving contrail changes, because this should part the knife dot cutting tool and the dot that retreat a knife, backward the way with forward certain deflection and distance, the question that when ensuring path cutting tool processes 45 steel in numerical control milling, won't exist to feed collides or be cut too happens, ensure the cutting of 45 steel is accurate, the centre of a circle that the dot removing a knife of the cutting in the graph is the first roundlet namely the coordinate that this workpiece coordinate fastens, look need constructive analysis, place of following graph model structure are shown. In addition, the elliptical car whorl of 45 in choosing to combine this plan even steel of craft card and element of parameter of cutting tool mould, be in same below initiative horn, cutting cutting tool should arrive some from inside the circular arc of the first roundlet the some dot in arc of the last roundlet runs orbit to walk, in this process coordinate meets the former heart of this roundlet arc to produce constant change as elliptical change, get relevant model thereby. This check study the process designing means of whorl of the circular arc on elliptical face, the treatment milling train of thought that basically analysed 45 steel and the nest process designing of grand program apply, also solve hard sometimes like process designing of so complex computer of nest process designing, and the treatment of numerical control milling that is 45 steel spare parts through the nest process designing of grand program produced tremendous effect. 5, the place on last word put together is narrated, the coordinate of many workpiece fastens one H99” of applied “HO1 set, improved the efficiency of process designing of grand program nest of treatment of numerical control milling greatly, achieved the structure of data order on one hand modular operation, the error rate that yields process designing of grand program nest on the other hand is reduced greatly, make what language program runs common and readable not only, and very convenient, the process designing of language of grand program nest that machines a spare parts to milling of partial numerical control needs to be opposite only the model undertakes relevant measure parameter is adjusted and be optimized, can undertake corresponding nest process designing, because this satisfied the process designing requirement of spare parts of milling of different CNC Machining better. CNC Milling
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