PowerMILL has medium application in model of the tire on 5 axes machine tool

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Summary: The application that 3 axes linkage processes traditional vertical machining center is most extensive treatment means, cutting tool is in vertical condition from beginning to end, the cutting career that cutting of ball head milling cutter chooses cannot get optimizing handling, treatment of so simple 3 axes vertical already cannot satisfy the flying development that machines now, so high speed of 5 axes linkage machines a machine tool to answer condition and unripe! 5 axes treatment applies to complex, working procedure demand of much, precision is high, need to use a variety of type general accuracy machine tool and various cutting tool, tool, the has proper lot part that completes treatment through many second outfit is placed and adjusting ability. Be like: Casing of the engine cylinder body of the car, gearshift, box of the headstock of the machine tool, main shaft, diesel engine cylinder body, body of gear pump case, tire, all sorts of impeller, airscrew, curved surface shape the mould. The article is aimed at 5 axes the characteristic of processing technique, the function of 5 axes treatment that discussed Delcam PowerMILL software and the knife rail mark of 5 axes are politic, through tire mould treatment is example, will introduce the specific application that 5 axes process and characteristic. Keyword: 5 axes machine preface of tire mould PowerMILL HSC75linear to be exhibited as the bitter fleabane break out of Chinese auto industry, tire serves as a among them important segment, its position got unprecedented attention; On the other hand, in the production process of tire, no matter be modelling design computerization, of technology of new-style still composite material and accept rice introduce, make tire industry happened to change tremendously. In show level, tire mould machines an enterprise to be less than the manufacturer of 1% to use the machining center of 4-5 axis only, add operation level and the acknowledge to soft hardware to spend finite, far did not come out benefit play. In tire mould treatment, the dimension of decorative pattern and appearance affect the character of service of tire directly, the with different road surface contact in can improving car travel not only is characteristic, and a be travel of car high speed important and safe index; China is developing a freeway in the round, also raised taller technical requirement to tire. So if homebred tire mould cannot break through the bottleneck that causes from this, get used to the need of the market very hard, certainly will is washed out by the market. Machine the ceaseless development of demand and change to satisfy mould industry, DMG company designs the 5 axes machine tool that rolled out a lot of types. One. The main good point that 5 axes machine is his can install clip to process complex form through. With install clip to be compared for many times, 5 axes treatment can reduce handling time and clamping apparatus amount greatly, improve manufacturing efficiency. And, in installing clip process for many times outfit of the generation when tearing open outfit workpiece extremely easily places an error. If the graph shows 1 times: Additional, 5 axes machine a main good point is its can undertake machining with shorter cutting tool, because the head is placed when treatment,this is / revolving stage can shorten the distance of cutting tool and workpiece and cutting tool can be based on work area to move. Such criterion need not the power with greater to load can achieve higher cutting rate to cutting tool, improve cutting tool life, reduce cutting tool to wear away. Machine photograph comparing with 3 axes, 5 axes treatment allows to use shorter cutting tool, in the vibration that machine deep aperture or cutting tool can reduce when deep antrum. This meeting raises treatment precision, reduce the time cost of artificial polish even. Have special cutting tool hardly use, simplified the application of cutting tool, reduced the cost of cutting tool. If the graph shows 2 times: Use 5 axes treatment to be able to machine particularly complex curved surface on stereo semifinished product, need not use special has cast semifinished product. To appearance or small lot treatment, such means is met more fast, economy. Need not 2 months or longer time will undertake cast and be machininged, use only 1 go to 2 weeks achievable. If the graph shows 3 times: Use 5 axes treatment to be able to save many bore time. The phase is more complex than treatment Kong He antrum, bore looks be like petty, actually, get many inclined hole to be able to waste many time. If use 3 axes machine tool to undertake drilling inclined hole, must make different tool for each aperture. Use 5 axes treatment, place a head / revolving stage will be accurate make cutting tool completes drilling operation more quickly along the axial of every inclined hole. If pursue 4: Nextpage2. Most and practical 5 axes machine tool is by 3 XYZ of linear reference axis is mixed of 2 rotor BC or AC or AB composition. Below the general situation that my general introduces 5 axes simply to machine. 1. 5 axes treatment is divided as a whole for 5 treatment, 5 axes fixed position is machined and outline machines 5 axes synchronism. If the graph shows 5 times: Graph 5A. 5 treatment: Law of according to cube, workpiece machines the position to be in each datum plane to go up, make it completes its pentahedral treatment in a working procedure. B. 5 axes fixed position is machined (3+2 axis fixed position is machined) Zuo is to use 5 treatment, much angle characteristic and working component are combined planarly.

Zuo of two groups of platform coming back, the axis uses the position at fixed position workpiece only. Main shaft is forever perpendicular will process the application that must want - get or Zuo . C. Outline machines 5 axes synchronism: Point of a knife follows, Xiao of this treatment ability is applied at must wanting 5 axes at the same time the treatment component of Zuo . 2. The market share that 5 axes machine, if the graph shows 6 times: Graph 6 actually, 5 axes treatment produces medium application in large quantities of quantities increasingly grow in quantity, the certain place that is a spare parts a little needs 5 axes linkage to machine really, and the treatment of some spare partses does not need 5 axes linkage completely. Because the part is more and more complex,the grow in quantity of this kind of application is with the spare parts precision asks taller and taller. Tire treatment is different from groovy craft, need is broken up different proportional paragraph, these step pitch that Duan Zhonghan has different figure. Use CAD/CAM technology only, ability raises a pattern quality and shorten treatment is periodic. Undoubted, a variety of demands that PowerMILL has contented above place completely to mention. The article basically discusses use PowerMILL software, combine the treatment craft characteristic of tire mould, the CNC Machining order that the work out gives reasonable and effective tire mould figure realizes high speed cutting on the HSC75linear of DMG. One, the numerical control process designing of decorative pattern of PowerMILL treatment tire 1.

The analytic graph 7nextpageA of three-dimensional model.

Above all, forerunner joins three-dimensional model, anatomize and measure graph archives, decide convenient and quick outfit places means, the size that can determine tire pattern from this and founding working coordinate is, if pursue,7 are shown. Powermill offers powerful coordinate department to found a function, according to the area of treatment different founds coordinate department to machine demand in order to satisfy. According to the appearance of three-dimensional model and dimension, the choice uses human nature to turn control systematic HEIDENHAIN I TNC530 and have twist high be apart from tall feed (all axes introduce drive of linear electric machinery) this tire mould is machined on DMG HSC75 Linear 5 Axis. It is the technical parameter of HSC75linear and machine tool picture below: Main characteristic Highlights: All axes use configuration of standard of linear electric machinery to deserve to have 18, the main shaft electric machinery of 000rpm and promotion type platoon are cut implement two large port offerred the configuration of the function that discharge bits with outstanding good maneuverability to rotate workbench and swing the head can realize 5 axes to machine B.

Coordinate department is founded in semifinished product on in the middle of the surface heart position. C.

The choice of cutting tool, pass careful analysis, found the cutting tool that accords with treatment requirement. The smallest radius that can pass what the function with peculiar Powermill diagnoses three-dimensional model, decide the smallest cutting tool in order to go to the lavatory use, if pursue,8 are shown. Graph 8 choose dish of form milling cutter, smooth De Duanxi according to three-dimensional model horn carries circle of knife, point of a knife milling cutter, ball head milling cutter. Dish form milling cutter basically is used at cutting semifinished product to leave rough machining tilts with two the rough machining of end panel. Choose 20R3 of Φ 40R5, Φ . Round horn of point of a knife carries milling cutter to basically be used at decorative pattern piece model a rough machining of antrum, model the clear root finish machining of antrum underside, choose Φ 10R0.

5, Φ 6R0.

5, Φ 8R0.

5. The knife basically uses smooth De Duanxi at finish machining of straight grain dambered surface and horn of underside Qing Dynasty, choose Φ 16, Φ 3. Ball head milling cutter basically is used at each model treatment of root of the finish machining of the face, local Qing Dynasty, choose 3R1 of Φ 6R3, Φ .

5, Φ 1.

5R0.

75, Φ 1R0.

5. 3.

The editor of craft labor situation is in craft is editorial in the process, the good according to deciding way that hold clip and chosen cutting tool will arrange treatment order, parameter of method of definition size range of pipe bent, cutting tool and mechanical parameter (like rotate speed, feed, cut deep, cut wide, mental allowance to wait) . The knife rail that is tire mould below generates slashly: Graph 9 to graph 22nextpage semifinished product the CK45 that is an all directions, model dish of form milling cutter that antrum part chooses Φ 40R5 is fast the redundant material of purify semifinished product; As to two lateral redundant material, must found perpendicular the coordinate at two side end panel is, produce the cutting tool method that 3+2 locates thereby. Right next horn are the material appearance after rough machining. Graph finish machining of dambered surface of 10 straight grain is very apparent, this strategy also is to use treatment of 3+2 fixed position, choose Φ the side edge precision work that 16 flat bottoms carry milling cutter is straight grain dambered surface. Graph 11 add are thick milling cutter has dish of look that chooses Φ 20R3 add is thick, right is the appearance after add is thick. Graph 12 crude clear character pursue 13 crude clear character pursue 14 in Nextpage of smooth bottom curved surface pursues the treatment of curved surface of bottom of the curved surface end 15 finish machining needs 5 axes synchronism outline treatment, namely treatment of 5 axes linkage. Use Φ 8R0.

The round horn of point of a knife of 5 carries milling cutter to start M128 point of a knife to follow function, handy and fast. Graph of 15 right is the result after this strategy is machined. Surplus changes the fundamental premise that is finish machining equably. After passing rough machining, major more than makings already purify, but model the more than makings on antrum face is step shape, not even, prepare to make surplus is the finish machining from the back equably, need to undertake semifinishing machining. Graph 19 finish machining two flank above of each sheet pitch thick / half essence / finish machining / after contrail of clear part cutting tool is generated, but pitch of decorative pattern piece forms the basis the graph duplicates via rotating those who form whole decorative pattern piece is thick / half essence / finish machining / contrail of clear part cutting tool. Of method of Nextpage cutting tool after generating, pass software advanced function- - the emulation imitate of the machine tool checks its validity, and ensure did not collide, remove safe protection! If the graph shows 23 times: Graph 23 2, the cutter track method after aftertreatment and treatment are optimized debugs the aftertreatment file that come out through thoroughly tempered, the NC treatment that if the graph is shown 24 times,the NC program that creates HEIDENHAIN to be able to identify mixes expresses sheet. Graph the 24 NC programs that will create HEIDENHAIN form finally input HSC75linear below the TNC catalog of 5 axes machine tool, the knife handle that machines the choice that express sheet strictly to accord with a requirement according to NC installs the cutting tool that answers relatively, the tire mould that if the graph is shown 25 times,gets after treatment. Graph the treatment that the machine tool of axis of HSC75 Linear 5 that 25 summary use PowerMILL to cooperate DMG provides to tire model, software and the incisively and vividly that hardware develops, raised tire mould to machine precision and efficiency greatly, the manufacturer home that is tire industry provides powerful safeguard, the victory is won in intense market competition. CNC Milling CNC Machining