Solution of technology of efficient CNC Machining

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Efficient CNC Machining is the necessary evolution trend of CNC Machining domain, it is cutting of afterwards high speed, high speed after treatment sadly arisen new point of view. What efficient CNC Machining reflects is efficiency of function of tall treatment efficiency, treatment, treatment, OK also the processing that be optimized by what described as makes circuit to whole treatment, the cost investment that the purpose is implementation lowest and higher production yield. Efficient CNC Machining is not to stress the rapiddest cutting rate or top treatment quality overly, raise the metallic purify rate of unit time however, reduce handling time to achieve the goal that reduces cost. Current, put in the direction of 2 effort in domain of efficient CNC Machining. The first, the development of efficient cutting tool and the thorough research that machine craft and application, fall in condition of type of coequal machine tool through revise and adjusting craft parameter to achieve, reduce handling time as far as possible, stress the potential that develops a machine tool, but this kind of means accepts obligation of function of itself of machine tool equipment, will machined when craft parameter or cutting tool when efficiency mentions acme, change only treatment facilities ability improves treatment efficiency further quite. The 2nd, the development of equipment of efficient treatment machine tool and application. Carry the machine tool equipment with development and more high-powered development, auxiliary function equipment, itself of promotion machine tool is inherent can be restricted, can choose parameter of higher index craft and cutting tool, from go up at all the treatment efficiency that promotes a spare parts is compared, realize the efficient treatment of the spare parts. Facilities of treatment of burden of 1 big torque is in characteristic of efficient CNC Machining the sources of energy, carriage domain, large treatment facilities is developing burden the main effect of efficient treatment, be like large hydraulic turbine large and blade, marine the large component such as machine of gear case of report of cylinder body of crankshaft of airscrew lamina, engine, diesel engine, wind, project. The characteristic of this kinds of component is: Workpiece size is large, self-prossessed big, if transmission engine crankshaft can amount to about a hundred tons again most, semifinished product surplus is larger. Be like the big torque treatment of difficult treatment material again, the crucial structural member of aviation domain plane, join the treatment of alloy waiting for titanium and high strenth alloy steel, machine efficiency to rise, only choice burden big torque machines a machine tool, ability realizes the efficient treatment that tall metal purify leads. Efficient treatment facilities is in 2 light qualitative alloy the treatment domain of the aluminium alloy component such as engine of aerospace, high speed, the characteristic of this kinds of component is by the 70% ~ that purify material occupies whole preform 95% , so high cutting proportion, rotate speed of need main shaft is in 6000 ~ 40000r/min, cutting speed 2000 ~ 5000m/min, metallic purify leads 30 ~ 40kg/h, main shaft power achieves 30 ~ 80kW, will satisfy the efficient treatment of this kinds of component. 3 tall automation assist the treatment tool here to point to cutting cutting tool not just, still include the craft tool fixture of performance of taller automation degree, high fixed position, the patulous function accessory with steady performance (patulous milling head, compound cutting tool) , stock conveyor, tall freedom spends a robot compositive system, these auxiliary equipment and treatment tool are to make sure the machine tool is efficient the premise condition of treatment, only these conditions were had, ability reduces treatment plan time truly. The implementation of efficient CNC Machining must rely on existing state of affairs of current development of efficient CNC Machining to come true at high-powered machine tool equipment, high-powered treatment tool and complete support system. To satisfy the need of efficient processing technique, machining cutting tool is indispensable link, at the same time to it facilities of corresponding machine tool treatment also appears more important. The field is created in current international inside, remain foreign developed country to mastering the core technology of efficient treatment tool and efficient treatment facilities, include machine tool lead plane and the design that assist functional device, analysis, outfit to deserve to make, the production of crucial component and application (be like feet of electric machinery of main shaft of report of main shaft of guide screw, big torque, high speed, moment of force, linear slideway, grating, automatic revolving stage) , the development of system of high-grade numerical control and application, especially 5 axes linkage and the development of many axle control system and reliable application are waited a moment. Manufacturer of outstanding foreign machine tool is compared in domain of burden machine tool, wait like Schiess, Couburg, Siegen, the requirement that carries a machine tool as counterpoise of Chinese manufacturing industry is increasingly exuberant, the product of afore-mentioned manufacturers still is holding decisive position, their product and technology still belong to international to precede. As the change of market demand, pattern of competition of industry of domestic heavy-duty machine tool produces change in succession, manufacturer home goes to a few by a few original development, and development of product technology level is very rapid, compare with product photograph of abroad, difference is less and less. Our country takes seriously what the development progress of industry of heavy-duty machine tool is travelled together by the world highly, famouser domestic manufacturer has Shenyang machine tool, Wuhan heavy-duty, neat one, neat 2, north one, on heavy, aid is second-class more than 10, among them neat 2 had developed the boring of the biggest be born mill on the world machining center, main shaft diameter achieves 320mm, can realize bigger treatment torque. Nextpage compares manufacturer of outstanding foreign machine tool in high speed and domain of 5 axes treatment, the MAG that is like the United States, HAAS, Ingersoll, german Cimoman, Chiron, DMG, Hermle, SPINNER, spanish Nicholas Keleiya, ZAYER, italian JOBS, FPT, japanese MAZAK, OKUMA, MITSHUI SEIKI, MAKINO; The machine tool of these foreign developed countries can assure precision of stabler dependability, treatment and higher treatment performance. And domestic high speed and 5 axes machine tool still are in basically start level, although machine tool gross is bigger, but in be being belonged to basically low end product, after main body designs analytic hand phase now, treatment workmanship is backward, overall reliability is not high, machine tool processability can be not quite stable, after compensation of temperature of bed of large scale computer and vibration restrain hand paragraph, wait. Although the level had the integral manufacturing industry of our country,current trade is put in the problem relatively substantially promotion, but there still is bigger difference between as top-ranking as international powerful nation, basically express the following now respect. (1) own innovation capacity is insufficient. Equipment of domestic efficient CNC Machining produces an enterprise to still be in the primary level of development, still give priority to in order to counterfeit, and imitated an appearance only, lack immanent. Although can assure to be on the appearance, on the structure consistent, but design thought, workmanship and assemble craft to be imitated hard, a truly high-powered treatment equipment cannot be made below most circumstance. (2) high-end equipment counts an import overly. Can stabilize the efficient treatment facilities that move to be given priority to with foreign equipment truly, remain foreign developed country to lead the technology of efficient treatment tide, always can make sure knowledge is shared between the developed country at the same time, the technology is shared, and still adopt a technology to block to the developing country or restrict, so that our country is studying the state with later time of inferior, development finishs starting point, can oneself rely on oneself, the way of development is long still. (3) level of crucial function component is general and inferior. Treatment facilities should make sure its are efficient quality, the crucial part that is used at equipment above all must have taller property. Worm of rack of feet of guide screw, slideway, main shaft, grating, gear, worm wheel, although these crucial parts can be produced in home, but also be confined to production, did not master the core technology of this kinds of component truly, core technology still is mastered by the developed country. Of short duration takes no account of the issue of high additional cost of the product, once produce a country to fasten the trade issue between or economic block, these a be confined to " production " " make " meet rapid and dispirited, can affect industrial foundation of the country directly so, consequence will be unimaginable. (4) treatment craft and assemble craft to lag behind. The manager that once had a company of foreign machine tool has said to us, "Although I give you all machine tool blueprint, you also do not make the equipment with go out as good as us " . The intention that of short duration does not talk, but this word indicated a fact really: Our workmanship and assemble craft to lag behind quite. The design in high-grade machine tool and production respect, we ignored treatment craft and the effect that assemble craft, also ignored the research to these craft at the same time. (5) research system force is weak. Home makes company basic research lay in inadequacy, force of research and development is weak, the research that can not develop continuously and can accede lays in a mechanism, can offer true core to study positive result rarely; Basic research and trend of current international development are out of line badly, overmuch ground is relied on " take doctrine " , affected fundamental theory and the band that use actually badly. Home still exists to spend insufficient, talent to develop a mechanism to the heavy visual range of professional still not quite perfect, lack the person with ability that can develop continuously competitive mechanism, cannot develop the problem such as the talent's specialty continuously. The talent is the fortune with the most precious company, however technical qualified personnel often is not taken seriously, bring about talent prediction of a person's luck in a given year or relevant technology to break archives. The angle that about efficient treatment a few proposal of the solution develops for a long time from the enterprise will tell, the following should notice: (1) should pay attention to more specialization directional development, accomplish the technology inside a certain professional domain of manufacturing industry to precede, strengthen seed profit to change administrative idea education. (2) pay attention to a talent to foster, build nice talented person to develop a mechanism, found good talent communication platform, the education that pays attention to professional (personnel of advanced research and development and senior skilled worker are fostered) . (3) build the team of talent research and development that tells actual effect, the cooperation that builds actual effect with the college concerns, the advantage is complementary. (4) the development that emphasizes core skill and reserve, enhance patent consciousness and positive result of high-grade and patent technology change. (5) system of competition of the industry between normative industry, develop to the cooperation between the enterprise by undesirable competition. The angle that can develop continuously from the technology will tell should notice: (1) emphasize research international domain the research of system of advanced machine tool, advanced numerical control. (2) emphasize advanced cutting craft, the automation such as revolving stage of library of advanced processing software, knife assists the new technology research of device. (3) the research and development that emphasizes crucial core component, make the research that reachs crucial material. (4) the core that emphasizes development to be based on manufacturer is add value technology and the research that are based on the solution of user demand, the efficient AB that be aimed at domestic aviation industry like Shenyang machine tool and develops double place a 5 axes linkage machining center, have big torque to place main shaft of cable of axis, high power, can realize the efficient treatment of aluminium alloy, through modular configuration machinery main shaft can realize alloy of big torque titanium to machine craft demand. CNC Milling