Example of treatment of puissant figuration grinder introduces numerical control

Puissant figuration grinding also calls photograph of grinding of double wheelhead figuration grinding of delay feed figuration, it is a kind of advanced grinding technology. This kind of advanced technology go up oneself century in half since 60 time many century, fashionable whole world, long fill do not decline, and the technology progresses ceaselessly. This advanced technique widened greatly the treatment domain of planar grinder, make the treatment category of planar grinding jumps out successfully " planar " , and become exterior grinding, namely English " Surface " concept, can grinding appearance outline the workpiece of each different. Arrive from plane the surface, this is a technology revolution that has important sense really, it is innovation of one old technique. As the progress of numerical control technology, technology of puissant figuration grinding also gets delay feed develop further, expand ceaselessly and extend applied domain, popularize this kind of advanced technology include spaceflight, aviation, car, accurate machining to wait for industrial department, make the important instrument that processes data of a lot of and new-style difficult treatment. grinding of puissant to delay feed figuration, the successful grinding of certain workpiece can extend a domain, can assume for the user of this domain join key project, supplying advanced equipment while still offerred advanced treatment technology, create considerable economic benefits for the user. In the plane action of the play in production industry is in modern aircraft production industry, have a lot of figure the complex, work that uses all sorts of difficult treatment material to be made, undertake with other machining method nicety is machined very hard. Come a few years, the national defence industry that Hangzhou machine already was China, especially the double wheelhead of MKL7140 numerical control that the plane made industry provide hi-tech content is puissant figuration grinder, MKL7150 7 axes numerical control of machining center of grinding of figuration of grinder of puissant figuration of 5 linkage numerical control, MKH450, MKL7120 is puissant the machine tool such as figuration grinder, use a honeycomb-like thing of engine of coronal of leaf of circular arc of tine of tenon of root of fir of lamina of treatment aircraft engine, oriented lamina, aviation Duan Yuan dambered surface and lock up a chamfer to wait, get department of industry of national national defense for many times commend. If aircraft engine lamina machines precision, appearance outline precision and symmetry to wait,ask very tall, the interchangeability requirement of blade is very strict. The material of blade is nickel radical commonly high temperature resistant alloy, belong to difficult treatment material, cut process instrumentation to undertake very hard machining with groovy grinding or other gold. The installation root ministry of blade, it is symmetrical fir root appearance commonly, two symmetry demand is very high, the requirement can machine figuration. The installation root department that uses odd wheelhead machine tool to be about twice to install clip twice to machine ability to finish lamina of grinding fir root, such precision assure very hard. Puissant figuration grinder uses the double wheelhead of MKL7140 numerical control that Hangzhou machine develops successfully already at blade to machine 10 years. Whole nap and grinding process all are undertaken automatically by programme controll, those who include cooling fluid and gyro wheel stop, handlers needs to tear open outfit workpiece only can. Be aimed at the blade grinding of different type, need to change only King Kong gyro wheel can. In batch production, need to undertake to the first lamina the knife is debugged is opposite only. According to surplus of unilateral of grinding of blade tenon tine 2.

5mm, 50mm of tine ministry length will calculate. The grinding efficiency of this kind of lamina is 6 minutes / . In addition, this kind of double wheelhead is puissant figuration grinder also gets applied extensively in turbine industry. To improve the work efficiency of turbine engine, reduce the sources of energy to use up reach the pollution that reduces pair of environments, when in recent years each country is designing production turbine engine, its are various component of turbine lamina seal ring uses beehive structure mostly. According to environment of work of lamina of every class turbine different, some uses integral structure, and use mostly set a component to spell synthesis by many sector a seal ring. And single sector is set piece area of beehive Duan Hu is final process often is completed by grinding treatment. Sector of plane turbine motor is set piece beehive paragraph as a result of beehive paragraph radius of face of workpiece circular arc often is in 800-1, 000mm left and right sides, and the central axes that the design asks the axes of workpiece beehive aperture all should point to surface of working circular arc. This asks the precision of radius of beehive surface circular arc of grinding is taller. Axis of X of need machine tool, Y undertakes grinding of numerical control linkage. The working temperature of component of turbine engine seal ring is 650-900 ℃ about, choose appliance to have mostly at present good the high temperature alloy that fights oxidisability and corrosion resistance is made. The high temperature aluminium alloy that place of the component that seal annulus uses its are main component has Ni and Cr. Material has very big extend a gender, mechanical cutting performance is poorer. Burr and Mao Bian often can appear in beehive mouth after grinding, should rely on to come artificially mostly purify, this affected workpiece to machine efficiency and n greatly. Be aimed at the characteristic of this workpiece, use workbench rate for 12, 000mm/min, grinding is measured 0.

005mm/ second grinding of reciprocating type figuration. Puissant figuration grinder uses the numerical control of Hangzhou machine successfully already at sector of plane turbine motor to set piece the treatment of face of beehive Duan Hu. In addition, 5 linkage of the MKL7150 × 16/2 that Hangzhou machine makes 7 axes puissant figuration grinder uses numerical control at heavy-duty light machine lamina and plane the accurate figuration grinding of Xie Guan of oriented lamina circular arc; Puissant figuration grinds 6 numerical control of MKL7120 × to be used at plane lamina to lock up the treatment of a chamfer. Blade locks up the structure of a chamfer, in the installation root ministry of blade, it is U form commonly, circular arc of bottom land ministry and linear join ask round glide is crossed, and grinding figuration. The precision demand that blade locks up a chamfer is higher, not only the appearance that blade locks up a groovy itself, outline spends a requirement very tall, and the interchangeability requirement of blade is very strict. In auto industry distinguish oneself car turns to rack car to change rack to the main component that is a car, it is rack gear changes a system to medium key. 2004, hangzhou machine studies through development and experiment, puissant figuration grinder uses 10 numerical control of better the versatility in series of this machine tool MKL7150 × successfully at the car to change the figuration grinding of rack to treatment. Up to now, machine tool already batch offers component of nearly 10 domestic cars to create a company, while Hangzhou machine is supplying treatment equipment for the user, provide machine tool of reliable advanced technology along with to the user together. Turn to rack polishing width to be in in the light of the car 200 Mm, cut be in greatly 5-10 Mm, and the actual condition that material is entity, the power of electric machinery of wheelhead main shaft that technical secondary school of series of puissant figuration grinder uses 10 numerical control of MKL7150 × at the car to change rack grinding to the machine tool is as high as 77KW, it is a greater variety in this series machine tool. The width of emery wheel can amount to 240 Mm most, it is domestic width is the at present biggest. Grinding of emery wheel complete width is cut deep most greatly 8 Mm. In addition, besides be used at afore-mentioned cars to turn to rack, still can count a car to change nut to the figuration grinding of tine with Yu Damo. Nextpage settles trade of fluid casting die big norms of difficult problem of two old techniques is marine rotor of hydraulic pressure motor is measuring precision in recent years, puissant figuration grinder solved the numerical control that Hangzhou machine develops rotor chamfer is mixed the grinding of cycloid annulus machines difficult problem. In the treatment of rotor, core technology is the grinding of notch. Progress as the technology, industry of fluid casting die is right surface roughness of rotor chamfer precision, surface and the demand that machine efficiency are higher and higher, the application that adds big norms rotor is increasing also. The hydraulic pressure motor that for instance shipping manufacturing industry of home is badly in need of asks to undertake grinding to large rotor, rotor diameter amounts to 295 Mm, ply 195 Mm, complete chamfer needs treatment of the grinding after quenching, ± of exterior hardness HRC60 3, public errand of groovy broad measure asks to be in 0.

01 Mm less than, the precision requirement such as parallelism all is in 0.

Inside 007 Mm, these requirements are taller. And common rotor norms external diameter is in only commonly 80 Mm less than, length is in 60 Mm less than. With home photograph of grinder of congener rotor chamfer is compared, the rotor chamfer grinder of Hangzhou machine has bigger innovation on the structure. The machine tool configured tigidity better can bear the special fixture of big norms rotor, fixed position is reliable, the design is exquisite. Still increased to have the orgnaization of every chamfer fixed position that the technology innovates, can undertake to each chamfer before grinding essence of life locates. In the meantime, still used crucial to rotor chamfer grinding CBN emery wheel to undertake grinding, CBN emery wheel is OK nap, nap can grinding 80-100 the rotor of 24 chamfer. Every emery wheel can machine hundreds rotor, already approached foreign advanced level. The photograph of around of cycloid annulus grinding is cycloidal round of crucial part that is cycloid annulus reducer and hydraulic pressure motor, its machine precision to affect the performance of orgnaization of a complete set of directly. Long-term since, because home lacks number to control device of puissant figuration grinder, cannot satisfy the requirement that batch produces, affect the performance of reducer and hydraulic pressure motor, pump directly. Be aimed at the treatment difficult problem of cycloid annulus, the success develops Hangzhou machine to be able to be used at cycloid annulus the puissant figuration of grinding is ground. The machine tool uses gyro wheel of entrance King Kong, nap of tie-in tall rigid gyro wheel implement, make range of tooth form of nap emery wheel efficient and exact, be spent to tooth flank clench the teeth and of grinding efficiency rise had assure reliably. Degree of machine tool automation and reliability are high, in grinding process, divide work assemble and unassemble reach outside measuring, all be during finish automatically, improved manufacturing efficiency, decreased to operate the labor intensity of personnel. Impeller of photograph of impeller of supercharger of turbine of shipping of grinding of the circle outside shipping impeller is the crucial part in turbine supercharger, its job rotate speed is high, minutely amount to 40 thousand turn more, quality of outline of the circle outside impeller face affects the service life of turbine supercharger and reliability directly. Be aimed at this workpiece outside round treatment characteristic, hangzhou machine was developed brand-new complete pillar of the structure is mobile and puissant figuration grinder. The machine tool wears circumgyrate through workpiece head, realize workpiece outside form of help sb to attain his aim (nap) grinding, use this kind of means to be in home is initiate. Emery wheel nap uses the advanced King Kong disc on current international means of successive contrail nap, can satisfy the treatment of the circle outside much norms impeller face. The accurate treatment of connecting rod of grinding of flute profile of connecting rod of diesel engine of engine, shipping is diesel engine of dynamical engine, shipping a very important segment in making. The flute profile clench the teeth on the flute profile on body of connecting rod lever and lever lid spends a requirement taller, precision of tine ministry outline asks to reach micron level, tooth flank surface roughness Ra ≤ 0.

8 μ M, the tooth flank clench the teeth that lever body lever builds spends ≧ 85% , and precision stability demand is quite high. Rise further to the requirement of interface now, the requirement achieves 90% above. Puissant figuration grinder can satisfy the 16 numerical control of MKL7150 × that Hangzhou machine develops connecting rod sketch map completely the tooth form of connecting rod machines a requirement, the characteristic with the biggest machine tool is to use double emery wheel to combine grinding technology, the around a tooth-like part of anything that two emery wheel can build to body of connecting rod lever and lever at the same time undertakes figuration grinding, polishing width amounts to ministry of connecting rod tine 230 Mm, assured the integral precision stability of workpiece so, improving grinding efficiency while the clench the teeth that assured connecting rod tooth flank is spent. Tooth of rat of the grinding in machine tool industry dish wait for face of Pan Duan of tooth of crucial part rat to age dish of photograph rat tooth Pan Duan face ages dish make in the machine tool such as lathe of machining center, numerical control in held very large proportion, the characteristic of stage of this kind of graduation is have fixed position in order to secure a value, the structure is simple, fixed position stiffness is good, repeat graduation precision tall, fixed position rate is rapid, apply extensively in all sorts of treatment and measurement unit. End panel ages the on any account that processes a level affects the precision of graduation device directly, produce quite big effect finally also to overall treatment precision. The treatment that face of rat tooth Pan Duan ages is very crucial it is important to mix. Face of rat tooth Pan Duan ages grinder of numerical control figuration is the figuration grinding of disc workpiece, there is bigger change with the fore-and-aft figuration workpiece previously on the technology. Development of Hangzhou machine success made tooth of numerical control rat dish grinder, solved grinder of figuration of numerical control of tine of face of rat tooth Pan Duan a lot of and crucial technology, be installed correctly and use of index plate of if machine tool main shaft is hot stretchy control, numerical control, the smooth equational cloth of each tine and treatment, the exploration of technology of grinding of end panel figuration and experience are accumulated, be aimed at rat tooth dish the figuration nap technology of the configuration of the numerical control unit that grinding processes and grinding program, emery wheel. Nextpage is in industry measure industry in industry measure industry, have a lot of work that suit treatment of puissant figuration grinding, have vernier calipers typically. Before using puissant figuration grinding, the treatment craft of vernier calipers is more backward, working procedure big, outfit places much, mental allowance the time is much, accumulate an error big, cause feet body and feet casing cannot crossing-over, percent defective efficiency of tall, production is low. Apparent, this kind of conventional technology cannot get used to the progress that vernier calipers produces. Current, puissant figuration grinding already should mature with the craft at vernier calipers, can realize chamfer of two sides of positive and negative of body of vernier calipers feet figuration is ground, number shows chamfer of body of vernier calipers feet figuration grinding and head of body of vernier calipers feet mix chamfer of casing of feet of figuration grinding, vernier calipers feet casing appearance figuration grinding. Pare line clamp tooth form pares line clamp is one of electrical engineering and commonly used tools, the most crucial position is this tool the tooth form of gate and point. The symmetry of dentiform size and fluctuation forehead affects performance characteristics directly. Because pare line gate hardness is very tall, most outside the tooth form of place is lesser, have declivous cutting edge again, common treatment means cannot be machined or machine very hard. If tooth form pursues, demand of semicircle dimension precision is high. To such workpiece, figuration grinding treatment is best means of settlement. The machine tool uses atmosphere aperture figuration to wear emery wheel, special machine or hydraulic pressure clamping apparatus, outfit places 6-8, machinery or hydraulic pressure clamp. Locate the face locates in order to pare the fixed position of line clamp sells Konghe, two flank clamp is fixed. Configure nap of special table gyro wheel implement undertake figuration nap to emery wheel directly with diamond gyro wheel. Undertake figuration grinding to work semifinished product directly, with form cutting 6 calculate, treatment metre reachs every 35 seconds. Bearing industry rotor of 8 glyphs impeller May 2010, hangzhou machine consults according to the working principle of 8 glyphs rotor the treatment craft of foreign rotor, successful development gives grinding machine of figuration of rotor of impeller of numerical control of domestic head stage, the batch production that expresses for pump of Chinese collect Ci and Luo Ciyi offerred reliable equipment to ensure, have good economic benefits and social beneficial result. This machine tool is to be on the base that original know exactly how things stand controls puissant figuration grinding machine, increased appropriative float to prop up clamping apparatus and nap of figuration of gyro wheel of appropriative King Kong implement, solved the treatment difficult problem of rotor well. The machine tool is in grinding process, the outfit that divides work, discharge and outside measuring, all be finish automatically. Current, grinder of figuration of first impeller rotor already was checked and accept through the user and devoted and normal batch production is used, the product precision that treatment gives all is in 0.

01 Mm less than, achieve the technical requirement of the user. Odd handling time is less than 6 minutes, efficiency is taller. Puissant figuration grinder uses other numerical control successfully still at the crucial part of a lot of industries to machine, like lathe the chuck claw of 3 ungual chuck directs groove figuration grinding. China is big country of production of a lathe, year of crop of lathe of the stage that amount to number. Accordingly, the chuck amount that is lathe form a complete set is very large. Among them, 3 ungual chuck held larger proportion, this kind of chuck has 3 apart the card of 120 ° is ungual, 3 card claw is stretched at the same time from beginning to end or draw close. Clamp goes to the lavatory quickly, do not need to search, have taller automatic centering precision. In the production of lathe chuck, chuck claw is oriented groovy treatment is very crucial, its machine the discretion of precision to affect the clamp precision of workpiece directly. Razor blade of small round mill 2005, the MKL7120 × 6/2 that for Zhejiang sea peace some company made be used technically at circular cut milling cutter is puissant figuration grinder, this machine tool solved grinding successfully to machine chip mill saber saw piece technical difficult problem. This kind curiums a milling cutter only thin 0 thin.

25 Mm, the diameter is very small. Material is to wear stuff hard -- tool alloy steel, using other machining method undertake very hard machining. We designed special fixture on the machine tool, curium 400 piece fold together undertake with CBN emery wheel figuration grinding is machined, grinding means is to use every tine graduation fore-and-aft delay enters heavy-cut grinding, grinding of one tine ground. Curium piece satisfied each precision requirement, and the efficiency of treatment is very tall, solved an user to produce medium bottleneck problem, get the welcome of the user. Perspective of puissant figuration grinding is wide, still need to be developed energetically to be developed further and promote puissant figuration grinding advanced technology, the application that promotes this kind of efficient machine tool and the promotion in disparate industry, the task that regards industry mainstay machine tool as equipment manufactory is very heavy, it may be said is shoulder heavy responsibilities. China is in although this domain already gained the success that your person fixes eyes upon, had as congener as country of foreign advanced industry machine tool to compare the actual strength that go all out, but the respect such as ability of the production level in the machine tool, innovation, promotion application still has bigger difference, need us to continue to try hard indefatigably to go ascend another height, occupational new technical commanding elevation. The practice that Hangzhou aircraft group comes for years proves, the propulsion of puissant figuration grinder should pass numerical control namely a breakthrough of another workpiece, progressively and occupational new field. Accordingly, need us to have patience and will, among them before-sales service is very important, it is an important segment in selling the work, must not ignore. In although try in what begin,be being ground because result of immature, grinding pays no attention to craft,think not crestfallen also, ought to static next hearts will undertake study to tackle key problem. Once tackle key problem,succeed, will surely harvest feudal. The near future, the professional technology personnel of Hangzhou aircraft group is a car again, spin the industry such as machine to try ground change sector of rocker arm shaft to tine, blame round gear, cent combs roller ages wait for the work with treatment greater difficulty, obtained certain positive result, believe puissant figuration grinder can extend numerical control certainly more, vaster industry domain, main effect is produced in modern course of China. CNC Milling CNC Machining