Electric main shaft processes medium application in high speed

Time:2023-06-26 11:55:17
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source:EAGLEBURGER CNC Machining

Keyword: High speed of electric main shaft machines application to enrage the static main shaft that suppress report is component of a function, already applied at grinding of high speed nicety in abroad, the tiny Kong Zuan of milling, sculpture and difficult treatment material is cut reach polishing to wait. It is air static a when press bearing application important facet, involved industry limits vast amount is large. American POPE company, British WESTWIND company, Japanese Toshiba company and Korea SamSung company, had undertaken specializationing manufacturing, already series product is supplied. Our country also has individual manufacturer production to enrage the static main shaft that suppress report, but output power is little (be less than 1 kilowatt) , and bear the weight of force and tigidity are low. Accordingly, agree with only the grinding of alveolus and tiny Kong Zuan are cut. Main shaft of ball bearing report still is holding regnant position on our country market. In recent years development of limited company of main shaft of report of high speed of Guangzhou city couplet harding iron succeeded a kind of high-power, enrage the static main shaft that suppress report rigidly high, already formed seriation, initial already throw on the market is used, obtain favorable result. One, the structural characteristic that tall tigidity enrages the static main shaft that suppress report and working principle: 1. Structural characteristic: Enraging the static main shaft that suppress report is to use air static the bearing that presses bearing to make main shaft, use main shaft of drive of frequency conversion electric machinery, the rotor installation of frequency conversion electric machinery is on main shaft (because this calls report main shaft) , the stator installation of electric machinery is inside housing. Air bearing is used " complete bearing " structure and home's traditional design photograph are compared, can twice land increases a shafting bear the weight of and stiffness. Its structure shows a graph to be as follows: High rigid morale is static approach sketch map of bearing report main shaft 01 before lid 02 stop choose 03 location of bearing board 04 bearing 05 body carapace 08 water of 07 stator cover 06 main shaft 09 rotor 2. Working principle: When the job, come from what conduit filters through nicety to compress air to enter the passageway of housing, flow into the reduce expenditure alveolus of bearing again. Next the clearance between inpour bearing and main shaft, form film of one lamination effort, have main shaft surplus. Main shaft of drive of the electric machinery that start, through changing the frequency of power source, make main shaft rotates with different speed. 2, stiffness contrast and analysis: More than 10 years ago, our country has had unit production to enrage the static main shaft that suppress report, but because bear the weight of tigidity is low, low, because this can be used at the grinding of alveolus mix only,get cut, the applied limits that makes enrage the static main shaft that suppress report gets very big confine. Till main shaft of ball bearing report still is holding regnant position in home market now, and still make people still is existing on understanding a such concepts: The stiffness that enrages the static main shaft that suppress report the stiffness under ball bearing. Enrage the static main shaft that suppress report to reach home to appear in abroad early or late as tall tigidity now, this kind of idea should be changed. We part below adduce norms and two kinds of energy of life with similar utility are quiet the stiffness of the main shaft that suppress report and main shaft of ball bearing report undertakes contrast: Breed air is static press D1156D1150MS32 of model of firm of FORTUNA of Germany of company of WESTWIND of England of manufacturer of main shaft of report of ball bearing of bearing report main shaft.

165LR36/25MS32.

=6 of axial of μ M of =19kg/ of radial of stiffness of 20000~30000rpm30000~50000rpm36000rpm51000rpm of 100LC51/6 rotate speed.

Radial =13 of 35kg/ μ M.

=3 of axial of 6kg/ μ M.

Radial =8 of 63kg/ μ M.

=4 of axial of 7kg/ μ M.

Radial =5 of 5kg/ μ M.

=3 of axial of 3kg/ μ M.

0kg/ μ M from on the watch can see, what the enrages the static main shaft that suppress report radial stiffness of current and similar standards and utility and axial stiffness compare ball bearing is tall. We ever also were opposite the circle inside the ball bearing of the high accuracy of the M131W that domestic some factory produces grinds provided radial stiffness to have a test, end is reached in main shaft condole of 30 millimeter place weighs 100N, main shaft is down displacement 3~4 micron. The KG25 that we produce to our company (rated rotate speed 25000 turn / cent) tall stiffness enrages the static main shaft that suppress report to make same to load experiment, main shaft of to load 100N is less than 1 μ M to next displacement. Its stiffness grinds provided radial stiffness than the circle inside M131W ball bearing not only tall, and the radial stiffness of the main shaft of ball bearing report that produces than afore-mentioned German FORTUNA companies is tall also. Ball bearing has windage as a result of its component interior, and it is an elastomer actually, it gets power the following stiffness is not invariable. Get power from 0 begin, as a result of the action of force, eliminate windage stage by stage and generation is out of shape, make stiffness increases gradually. Suffer force to increase gradually when bearing, to make component generates completely rigid contact, to when doing not have displacement, rigid from 0 reach great value, but from the back a paragraph of tigidity does not have economic value. To undertake comparative, we take a paragraph of stiffness that has economic sense to be worth, this paragraph of bearing gets power from 0 those who begin to allow to cutting standard is the biggest get power paragraph, the author call this stiffness initiative stiffness, we just think the stiffness that enrages the static main shaft that suppress report is more than the initiative stiffness of main shaft of ball bearing report. Main shaft of ball bearing report undertakes in the cutting parameter that selects a standard the circumstance of treatment falls, it is smaller that main shaft gets power, its initiative stiffness is smaller, as above watch is narrated, the stiffness of main shaft of ball bearing report wants under the stiffness that enrages the static main shaft that suppress report. Accordingly, can inference, inside the limits that machines in high speed nicety, look from rigid angle, the application that enrages the static main shaft that suppress report can pervade now the applied domain of main shaft of ball bearing report, can replace latter basically even, and can get better result. 3, advantage: Enrage the static main shaft that suppress report its advantage is rotate speed life of tall, precision grows precision of tall, circumgyrate, service life small, vibration mixes long, friction work bad news noise is little. This is everybody place is hep, the introduction is emphasized to use what what when the static main shaft that suppress report is machined, gas shows to compare outstanding advantage below. 1. The life that adds cutting tool enrages the static main shaft that suppress report to be ground as high speed when using, because precision of main shaft circumgyrate is tall, without vibration, because this is OK better land maintains the sex of sharp edge acute of emery wheel, not easy passivation, can get taller productivity thereby, reduce surface roughness of surface of treatment spare parts, reduce the nap number of emery wheel, prolong the service life of emery wheel, reduce operation cost. The data of foreign some factory makes clear, use energy of life is quiet when spare parts of bearing of grinding of the main shaft that suppress report, of emery wheel wear away and of the diamond when nap emery wheel wear away, small 3/8 is made an appointment with when wanting to compare main shaft of report of use ball bearing. Undertaking mill of high speed carve is mixed auger when cutting, also can prolong the service life of cutting tool euqally, reach improve manufacturing efficiency and get very good treatment quality, british WESTWIND company thinks this is the biggest characteristic that enrages treatment of the static main shaft that suppress report. Our company gas is used on grinder of the garden inside the 3MZ204A that outfit of the static main shaft that suppress report is filled with division bearing production company in Zhongshan city, come from March 27 on August 25 of grinding bearing annulus inside aperture result is favorable, rise somewhat besides internal diameter circularity outside, grinding efficiency has bigger rise and exterior surface roughness is reduced apparently. (use a report according to this factory) 2. When the raceway of grinding bearing annulus orbit slants not easily place. Energy of life is quiet pressing bearing is to use two flank of shoulder of main shaft axis to make stop push bearing, because two or so of axial shoulder stop,the area that chooses a side is equal, and it is equal that the atmospheric pressure of two side is being engraved temporarily together, accordingly, axial shoulder of two side stop thrust is equal. Because this is when grinding raceway, place not easily at making raceway slants, this also is the place with advantageous main shaft of this kind of report. Using gas when silicon chip of cutting of the static main shaft that suppress report, because emery wheel did not slant,place, the ply noncombatant duty that can carry silicon chip reduces percent defective. 3. Company of constant stiffness England WESTWIND thinks, because energy of life is quiet,press bearing report main shaft every turn have constant stiffness. Can make consequently processing hard data (wait like pottery and porcelain, silicon chip) when, the burst that can make machine the surface to fall is decreased to least, improve exterior quality, raise the n that machines a spare parts. 4, the domain of success application. Tall tigidity exceeds nicety to enrage the static main shaft that suppress report, the domain that already machined in numerous high speed in foreign industry developed country obtains successful application. The POPE company of the WESTWIND company that abroad compares famous production to enrage the company of the static main shaft that suppress report to have England, TOSHIBAMACHINE company of Japan and TOSHIBATUNGACOY company, United States. Introductory tall tigidity enrages the static main shaft that suppress report to process a few application of the respect in high speed below: ☆ uses firm of machinery of Toshiba of the closest Japan in what high speed machines a machine tool to go up (TOSHIBAMACHINE.

CO) already produced the high speed that main shaft head is tall tigidity to exceed nicety to enrage the static main shaft that suppress report to machine a machine tool, machine tool model is F-MACH442 and F-MACH644 two kinds, main shaft rotate speed is measured for 6000~30000rpm axis shift (Z of × of X × Y) 400 × 200mm mixes 400 × 400 × of 600 × 400mm, workbench area is 600 × 450mm and 1100 × 450mm, can use at machining exact pattern to wait. Diameter of semiconductor silicon chip already developed the cut of ☆ semiconductor silicon chip and grinding now to 8 " (Φ 200mm) , use energy of life is quiet silicon chip of cut of the main shaft that suppress report, because emery wheel slants,place minimum, the difference of silicon chip ply that cuts so is very little. And also make the surface not easy burn, raise n greatly. The silicon chip that cut comes down needs surface grinding, use tall tigidity to exceed nicety to enrage installation of the static main shaft that suppress report to be machined on planar grinder, can gain the face of high quality, (because for main shaft every turn,Heng Gang is spent, so grinding fragile good silicon chip appearance is not easy burn and the material below the surface is not easy also burst) . ☆ printed circuit board the bore of small hole -- the freeboard that British WESTWIND company, Japanese TOSHIBAMACHINE company and TOSHIBATUNGALOY company all have manufacturing rotate speed to be 120000rpm fast energy of life is quiet the main shaft that suppress report, british AIRBEARING company also is produced have 125000rpm with type product, use at Φ 0.

The printed circuit under 5mm board the bore with small alveolus of difficult treatment material, diameter of the smallest bore is Φ 0.

1mm. Grinding of the aperture inside ☆ car spare parts. Grinding of the raceway inside ☆ ball bearing outer shroud -- of the raceway inside ball bearing outer shroud slant place noncombatant duty the demand is very high, in grinding process requirement emery wheel does not produce axial to slant place, because the structure is unique,enrage the static main shaft that suppress report advantage (the place before be like is narrated) , achieve treatment requirement smoothly, received successful application. The treatment of the clear hard part such as spare parts of ☆ pottery and porcelain and optical glass. Grinding of the aperture inside atomizer of ☆ internal-combustion engine. ☆ uses as the head of engraving tool main shaft of accurate carve mill. ☆ is ground as high speed nicety provide what still be used at grinding bearing annulus inside aperture, of pinchcock head inside of guide-post bushing of aperture and mould inside aperture. Introduce according to data of famous British WESTWIND company, the gas that this company produces is static the main shaft that suppress report applies successfully in 16 following respects. Reprint as follows now: Successin: .

SemiconductorWaferGrinding.

CeramicGrinding.

WaferDicing.

DiamondTurning.

ElectrostaticCoating.

AdvancedOpticsMachining.

BallraceTrackGrinding.

PrescriptionOpticsMachining.

DieselInjectorGrinding.

GraphiteMilling.

BoreGrindingForAutomotiveComponents.

PrecisionWorkHeads.

PCBDrilling&Routing.

ServoWritingRemovableDrives.

ImageSetterOpticalSystems.

HardDiskVerification by on can see, enrage the static main shaft that suppress report to had been in abroad in numerous production large trade success application. Be like chew of semiconductor, bearing, mould, fuel injection, car, printed circuit board, in the large trade such as treatment of treatment of spare parts of engraving tool, pottery and porcelain, optical glass. Our country is put in very big difference in applied respect, potential market is very big. Our company already developed development high-power tall tigidity to enrage product of series of the static main shaft that suppress report, the function of the product already was achieved or approach the level of foreign congener product. Have rotate speed 120000rpm, power 0.

8KW, use at printed circuit board (PCB) with difficult treatment material tiny Kong Jia is versed in; Rotate speed 10000~60000rpm, power 1.

5~5KW is used at inside the grinding of aperture and vulture mill; Still have rotate speed 6000~15000rpm, power 12KW, radial stiffness amounts to the first class of accurate main shaft of 270N/ μ M. The series product that our company produce: 1. Inside the main shaft head of round grinder 2. High-power of numerical control bench drill is angry static press bearing report main shaft to apply main shaft rotate speed to have on grinder: 10000~20000R.

M20000~30000R.

M30000~50000R.

Power of M electric machinery: 2~5KW(basis needs and decide) air feed pressure: 0.

6~0.

7Mpa air consumption: 0.

35M³/min3. The main shaft head of engraving tool (3KW of power of rotate speed 25000rpm) 4. Tall tigidity exceeds high speed to enrage power of 120000rpm of rotate speed of the static main shaft that suppress report 0.

Sex of tall of る of す of of of を of treatment of high-energy rate high grade exceeds the product that company of 8KW Japan Toshiba produces static of accurate sky advocate Zuo を builds high speed of Zuo した to machine advocate Zuo answers Zuo to count 6, 000 ～ 30, 000min- １ Zuo moves measures (Z of × of X × Y) ル of ブ of ー of テ of 　 of 400 × 400mm makes 600 × 1100 × of ズ of イ of face サ on ル of ブ of ー of 450mm 　テ last word of 500kg of weight of Zuo of the biggest Er : Company of main shaft of couplet harding iron uses balancing machine of suitable De Huashun to undertake the dynamic balancing of main shaft detect all the time. CNC Milling CNC Machining