V nozzle improves beneficial result of grinding refrigeration lubricating fluid

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  • source:KAIHER CNC Machining
Use V spray head, introduce cooling lubricant well and truly to the contact between workpiece and millstones inside area, the exterior quality that can reduce grinding force thereby and improves work is opposite through using V spray head the refrigerant infuse means of grinding operation area undertakes optimizing, the amount that can reduce the refrigerant that is as high as 75% is cut purchase, use and discharge the cost that waits for a respect, still can reduce grinding force and improvement further at the same time exterior quality. The place in grinding produces what caloric is discharged and chafe between grinding grain and workpiece to reduce, it is a of cooling lubricant main task. In addition, refrigerant still needs grind bits to take away. Use the refrigeration that suits with technological process photograph to lubricate, can affect the appearance of workpiece quality and emery wheel actively, of slow down cutting tool wear away degree. To the use of cooling lubricant is controlled in grinding process, want those who control cooling lubricant to press above all need to supply, the supply that should prevent cooling lubricant namely overmuch or in short supply. Later development measures the lowest that introduces a kind of new research and development cooling lubricant nozzle namely " V nozzle " . When developing this kind of nozzle, mature arrived speech type nozzle and flexible and filmy advantage. V nozzle can apply to a variety of grinding craft. Can improve refrigeration and lubricant efficiency considerably from this. With traditional cooling lubricant cold photograph is compared, use this kind of KSS to note fluid pattern, can improve exterior quality, reduce grinding force, rate of loss of slow down emery wheel. In addition, return the dosage that can reduce cooling lubricant. The graph shows the V that is new development nozzle and its part 1 times. Through using this kind of spray head, OK and direct infuse goes to cooling lubricant inside the osculatory area of emery wheel. To come true this, answer to eliminate bleb above all. Because gyral emery wheel chafes action the liquid that contacts to it (gas) since the belt, cause bleb on emery wheel thereby. To enhance the effectiveness of cooling lubricant, bleb eliminates through the bleb on V nozzle implement be able to discharge (graph 1 and 2) , cool from this lubricant can have adequate measure to enter grinding area in, the optimal contact that emery wheel also can achieve pair of cooling lubricant and use. Cooling lubricant is in from by fluctuation two parts are formed (graph 1e and F) advocate after nozzle is squeezed to go out, shoot Xiang Sha annulus with the tangential angle of 16 ° (graph 2) , because this KSS is OK,contact with rotating emery wheel directly. Can ensure so cooling lubricant won't gush to other way. Through using aluminium board (graph 1c) , can refrigerative lubricant lubricates adequately emery wheel. In the meantime, because cooling lubricant is OK the time that engages in antrum of emery wheel cutting is longer, because this can be entered directly,go up to interface (graph 2~4) . Advantage of speech type nozzle and oriented board advantage photograph union is passed use aluminium board, can mix speech type nozzle the advantage photograph union of cooling lubricant guide plate rises. This conduces to cooling lubricant adequate measure enters a contact in area. Although aluminous guide plate and photograph of conventional spray head contact area than can be being stood by more, but, stem from safety reason and to optimize the infuse effect of cooling lubricant further, because this was used flexible and filmy (graph 1d and 2) . Through using aluminous guide plate to be able to be opposite cooling lubricant undertakes sufficient acceleration, and use film criterion but cooling lubricant direct infuse arrives on osculatory area. If filmy meaning tegument is ground, also do not have any danger to grinding craft, because reel system can adjust according to real need,this is filmy length (graph 3) . Nextpage reachs emery wheel at least in the efflux speed of cooling lubricant of circumferential speed 60% when, osculatory area ability gets first-rate notes fluid result. When using V spray head, the space is area of the contact that note fluid between aluminium board and emery wheel. The process is here medium, the speed of cooling lubricant also can be gone to quickly emery wheel is circumferential speed (graph 3 and 4) . If the graph is shown 4 times, the use efficiency of cooling lubricant is very tall. Use V nozzle to also conduce to the improvement of grinding result, raise the economic benefits that grinding machines. This kind of state can pass comparative analysis to try to make clear. V nozzle has positive effect to be among the narrates attestation to V nozzle to grinding force, have V nozzle and conventional fine eject spray head contrasting below same condition. To this, all use Korund emery wheel on planar grinder in all research works. Achieve first-rate refrigeration to lubricate to make comparative analysis true and reliable, undertake modulatory to efflux nozzle, make the cooling lubricant that has adequate amount enters a contact in area. Study the result makes clear, v nozzle is having positive effect to grinding force (graph 5) . Its reason depends on V nozzle can improving KSS to introduce condition to what contact area. Can ensure the cooling lubricant that has sufficient amount enters a contact from this in area. Can reduce attrition so, also reduce grinding force thereby. From the graph 5 on can see, through using V spray head, can prevent occurrence fire damage. The loss that using V nozzle to be able to drop another consideration of grinding force is emery wheel is apparent slow down (graph 6) . Its reason depends on conglutinate mixing a large number of entering inside cutting antrum the content of the grain that cut bits in emery wheel clearance and other foreign matter are rinsed to come out below the action in cooling lubricant. This makes clear, after use V nozzle, the grinding ability of emery wheel gets rising significantly. The exterior quality that V nozzle can realize high grade surface to be obtained through using V nozzle place more than free efflux nozzle wants nozzle of efflux of excel tradition freedom, measure in bigger feed especially (20 μ M) also be such below the circumstance with inferior KSS discharge. Through using V spray head, the cooling lubricant in grinding exercise process introduces got optimizing, cut bits to generated a state to also get ameliorative. The generates ply that cut bits is lesser, coarse deepness is lesser also. CNC Milling