Linear guideway raug cov chav kawm

Interchangeable piv rau tsis yog -interchangeable

Preload chav kawm - qhov uas tau kwv yees

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Pob ntsia hlau raug: qib tsis txhais hais tias backlash

Xaiv cov qib los ntawm kev suav

Pob ntsia hlau preload

Mounting qhov tseeb

Daim ntawv txheeb xyuas Specification

FAQ

Linear Guideway Preload And Ball Screw Accuracy: Qhia kom meej yam tsis them nyiaj ntau dhau

Linear Guideway Preload thiab Ball Screw Accuracy: Qhia kom meej yam tsis tau them nyiaj ntau dhau

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Precision machining thiab tshuaj xyuas muaj peev xwm

Lub hom phiaj lo lus tseem ceeb:linear guideway preload classes

Secondary:Pob ntsia hlau raug qib C3 C5 C7, linear qhia preload Z0 ZA ZB, linear qhia raug chav kawm

Meta piav qhia:Cov nqi preload tiag tiag, cov lus raug hauv chav kawm thiab kev ntsuas kev thauj khoom los ntawm cov ntawv teev npe luam tawm. Vim li cas qib raug tsis txiav txim siab rov qab, thiab xaiv cov chav kawm koj lub tshuab xav tau li cas.

Ob qhov tshwj xeeb tau theej rau cov duab kos ntau dua li lwm tus hauv cov lus tsa suab: "C3 pob ntsia hlau" thiab "cov lus qhia ua ntej tawm." Ob leeg suab nruj. Tsis yog ua tiav, thiab ob qho tib si raug nqi nyiaj uas feem ntau nkim.

Nov yog yam uas cov ntaub ntawv luam tawm tau hais tiag.

Profiled rail guideways raug muab qhab nia nyob rau hauv tsib qhov raug chav kawm: ib txwm (C), siab (H), precision (P), super precision (SP) thiab ultra precision (UP).

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Daim duab 1. Cov chav kawm raug: cov lus qhia sib hloov tau yooj yim dua ntawm tib daim ntawv.

Rautsis yog - hloov pauv tauCov lus qhia hauv qhov ntau thiab tsawg 25, 30 thiab 35 (unit: mm):

Yam khoom	C	H	P	SP	UP
Qhov siab H kam rau ua	±0.1	±0.04	0 / −0.04	0 / −0.02	0 / −0.01
Dav N kam rau ua	±0.1	±0.04	0 / −0.04	0 / −0.02	0 / −0.01
Variation ntawm qhov siab H	0.02	0.015	0.007	0.005	0.003
Variation ntawm dav N	0.03	0.015	0.007	0.005	0.003

Rau qhov ntau thiab tsawg 15 thiab 20:

Yam khoom	C	H	P	SP	UP
Qhov siab H kam rau ua	±0.1	±0.03	0 / −0.03	0 / −0.015	0 / −0.008
Variation ntawm qhov siab H	0.02	0.01	0.006	0.004	0.003

Tus neeg sawv cev catalog qhov tseem ceeb rau tus qauv profiled rail series.

Ob yam hauv cov qauv tsim nyog rau ncua.

Kev kam rau siab tig los ntawm ob sab mus rau unilateral ntawm P chav kawm.Chav kawm C thiab H yog ±; P, SP thiab UP yog 0 / −x. Qhov ntawd yog txhob txwm tshaj tawm - rau kev sib tw ua ke, tswj kev taw qhia ntawm kev sib txawv cia cov blocks tau ua khub kwv yees. Koj tsis tuaj yeem sib piv "± 0.04" tawm tsam "0/−0.04" zoo li lawv yog tib lub siab ntev.

Kev hloov pauv tseem ceeb tshaj qhov ua siab ntev rau feem ntau cov tshuab."Variation ntawm qhov siab H" yog qhov sib kis ntawm cov blocks ntawm tib txoj kev tsheb ciav hlau. Yog tias tag nrho koj cov blocks yog 0.03 hli qis los ntawm tib tus nqi, koj shim lub rooj sib txoos ib zaug. Yog hais tias lawv txawv ntawm ib leeg los ntawm 0.03 hli, lub carriage pob zeb thiab tsis muaj dab tsi rau shim.

Qhov sib txawv yog ncaj nraim: sib hloov cov blocks thiab cov ntsia hlau tuaj yeem hloov pauv dawb, thiab lawv qhov tseeb nce mus txog qib P.

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Daim duab 2. Preload chav kawm raws li feem pua ntawm dynamic load ntsuam xyuas C.

Rau interchangeable guideways:

Yam khoom	C	H	P	SP	UP
Qhov siab H kam rau ua	±0.1	±0.07	0 / −0.07	-	-
Variation ntawm qhov siab H	0.03	0.02	0.01	0.007	0.005

Tus neeg sawv cev catalog qhov tseem ceeb, sib hloov hom.

Sib piv cov ntawv tib chav kawm nyob rau ob hom. Ntawm chav kawm H: variation ntawm qhov siab yog 0.015 mm tsis yog -interchangeable, 0.02 mm interchangeable. Hauv chav kawm C: 0.02 txog 0.03 hli.

Tib tsab ntawv hauv chav kawm txhais tau hais tias muaj kev zam dhau ntawm kev hloov pauv tau.Thiab SP thiab UP tsis muaj nyob rau ntawm tag nrho - cov uas xav tau kev sib tw.

Kev lag luam- tawm yog kev saib xyuas. Nrog cov kev sib pauv hloov tau koj tuaj yeem xaj ib qho kev hloov pauv hauv tsib xyoos thiab haum rau nws. Nrog rau cov txheej txheem sib tw, poob ib qho thaiv tuaj yeem txhais tau tias hloov tag nrho lub rooj sib txoos. Rau lub tshuab uas yuav nyob rau hauv kev pab cuam kaum tsib xyoo, uas yog tsim nyog xav txog nyob rau hauv lub tsim theem.

Preload tau qhia raws li feem pua ntawm qhov yooj yim dynamic load ntsuas C:

Chav kawm	Code	Preload	Qhov xwm txheej	Daim ntawv thov
Teeb	Z0	0 ~ 0.02C	Tej yam kev taw qhia load, tsis tshua muaj kev cuam tshuam, tsawg precision yuav tsum tau	Cov khoom siv thauj mus los, pib- cov tshuab ntim khoom, X-Y axis rau cov cav tov dav dav, vuam tshuab
Nruab nrab	ZA	0.05C ~ 0.07C	High precision yuav tsum tau	Machining chaw, Z axis rau cov cav tov dav dav, EDM, NC lathes, precision X-Y rooj, ntsuas khoom
Hnyav	ZB	0.10C ~ 0.12C	High rigidity xav tau, nrog kev vibration thiab cuam tshuam	Machining chaw, sib tsoo tshuab, NC lathes, kab rov tav thiab ntsug milling tshuab, Z axis ntawm cov cuab yeej siv tshuab, tshuab txiav hnyav

Cov neeg sawv cev preload class txhais.

Lus ceeb toom txog cov lis dej num.Lwm txoj hauv kev siv cov qauv Z0 / ZA / ZB tib yam nrog cov nqi sib txawv:

Chav kawm	Code	Preload
Teeb heev	Z0	0 ~ 0.02C
Teeb	ZA	0.03C ~ 0.05C
Nruab nrab	ZB	0.06C ~ 0.08C

Nco ntsoov tias ZB txhais tau tias 0.10–0.12C hauv ib qho thiab 0.06–0.08C hauv lwm qhov - ze li ntawm ob.Nco ntsoov qhia cov koob nrog rau preload code, thiab xyuas cov catalog rau cov khoom tshwj xeeb es tsis xav tias cov cai yog lub ntsiab lus thoob ntiaj teb.

Muaj: Cov kev qhia sib hloov tau muab Z0 thiab ZA nkaus xwb. Tsis yog -kev hloov pauv tau Z0, ZA thiab ZB.

Siab dua preload nce rigidity thiab txo deflection nyob rau hauv load. Nws kuj ua rau muaj kev sib txhuam, kev tsim hluav taws xob thiab kev ntxhov siab sab hauv, uas txo lub neej. Preload tsis pub dawb rigidity - nws siv qee qhov ntawm cov kabmob muaj peev xwm mus tas li. Qhia ZB thaum koj tiag tiag muaj kev co thiab cuam tshuam; qhia Z0 thaum lub load kev taw qhia yog tas li thiab precision tsis tseem ceeb.

Heavy-load blocks, tus sawv cev profiled rail series:

Rail loj	Dynamic C (kN)	Static Co (kN)
15 (tus qauv thaiv)	11.38	16.97
20	21.18	35.90
25	32.75	49.44
30	47.27	69.16
35	60.21	91.63
45	94.54	136.46
55	139.35	196.20
65	208.36	303.13

Tus neeg sawv cev catalog ntsuas qhov muaj nqis.

Cov ntsiab lus tseem ceeb: ntawm qhov loj 25, lub flange - hom thaiv yog C=32.75 kN thiab Co=49.44 kN - zoo ib yam rau hom square. Flange tiv thaiv square hloov mounting geometry, tsis muaj peev xwm. Xaiv qhov koj tuaj yeem tau txais bolts rau hauv lub tsheb thauj khoom, tsis yog ntawm kev thauj khoom.

Plaub - kab ncig- arc tsim "tus yam ntxwv sib npaug ntawm qhov sib npaug ntawm qhov sib npaug ntawm cov radial, rov qab radial thiab lateral" cov lus qhia, thiab cov ntsiab lus sib cuag ntawm 45℃muab tus kheej -aligning peev xwm: lub series "tuaj yeem nqus tau qhov teeb meem feem ntau vim qhov tsis sib xws ntawm qhov chaw thiab muab cov kab ncaj nraim los ntawm kev sib cuag ntawm cov ntsiab lus ntawm kev sib cuag.

Qhov kev kam rau ua qhov yuam kev mounting yog tiag tiag tab sis finite. Nws tsis tso cai mounting rails rau ntawm qhov chaw tsis siv neeg.

Qhov no yog qhov kim tshaj qhov tsis ncaj ncees lawm nyob rau hauv cov lus qhia ntawm kab lus.

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Daim duab 3. C3 tiv thaiv C5 tso cai mus ncig ua si yuam kev los ntawm xov ntev.

Cov qib raug yog los ntawm JIS B 1192 / ISO 3408, thiab muaj cov qauv sib cais hauv qhov ntsuas: qib C0 txog C5 yog txhais los ntawm linearity thiab directional cuab yeej, thaum C7 mus rau C10 yog txhais los ntawm kev mus los ntawm kev ua yuam kev nyob rau hauv 300 mm.

C0–C5 yog cov qhab nias. C7–C10 yog qib thauj, teev txawv. Lawv tsis yog cov ntsiab lus ntawm ib qho kev ntsuas tas mus li.

Tshaj tawm qhov kam rau ua rau qhov chaw screws (unit: µm):

Siv tau xov ntev	C3 yuam kev	C3 variation	C5 yuam kev	C5 variation
mus 315mm	12	8	23	18
315–400	13	10	25	20
400–500	15	10	27	20
500–630	16	12	30	23
630–800	18	13	35	25
800–1000	21	15	40	27
1000–1250	24	16	46	30
1250–1600	29	18	54	35

Variation per 300 mm: C3=8 µm, C5=18 µm, Ct7=52 µm, Ct10=210 µm.

Tam sim no cov ntaub ntawv backlash, uas yog qhov chaw tsis meej pem tawg:

Ntsia hlau hom	Txiv ntseej hom	Qib	Rov qab
Rolled	Standard txiv ntseej	C7	0.003mm los yog tsawg dua
Rolled	Standard txiv ntseej	C10	0.005-0.20mm nyob ntawm qhov loj me
Rolled	Compact txiv ntseej	C10	0.05-0.10mm los yog tsawg dua
Precision (hauv av)	Standard txiv ntseej	C3	0 (tsawg preload)
Precision (hauv av)	Standard txiv ntseej	C5	0.005-0.010 hli los yog tsawg dua
Precision (hauv av)	Standard txiv ntseej	C7	0.030mm los yog tsawg dua

Nyeem cov kab C7. Ib tug dov C7 ntsia hlau muaj 0.003 hli backlash. Lub hauv av C7 ntsia hlau nrog cov txiv ntseej sib txawv muaj 0.030 hli - kaum npaug ntxiv.Tib qib raug.

Qib raug piav qhia txog kev ua yuam kev ntawm cov ntsia hlau. Backlash yog ib yam khoom ntawm cov txiv ntoo. Qhia meej "C3" thiab cia siab tias xoom rov qab ua haujlwm tsuas yog vim C3 cov ntsia hlau feem ntau tuaj nrog cov txiv ntoo ua ntej, tsis yog vim C3 txhais tau tias txhua yam hais txog backlash.

Qhia ob leeg.Qib rau qhov tseeb qhov tseeb, hom txiv ntoo thiab preload rau backlash.

Ib qho piv txwv ua haujlwm qhia txog txoj hauv kev zoo:

Lead 20, stroke 720 mm, xav tau qhov tseeb ± 0.05 hli

Xov ntev=stroke + txiv ntseej ntev + margin=720 + 62 + 60=842 mm

(nplooj=lead × 1.5 × 2 xaus=60 mm)

Los ntawm lub rooj ntawm 800-1000 hli: C3 muab ± 0.021 hli, C5 muab ± 0.040 hli

C5 txaus siab ± 0.05 hli.C3 yog tus nqi tsis tsim nyog.

Ua haujlwm los ntawm qhov yuav tsum tau ua, tsis yog los ntawm tus cwj pwm. C5 tshaj 800-1000 mm xa 40 µm. Yog tias koj lub tshuab xav tau 50 µm, C3 yog nyiaj siv rau qhov tshwj xeeb tsis muaj leej twg yuav ntsuas.

Ob txoj cai tswj hwm preload:

Txij li thaum preloading muaj txiaj ntsig mus txog kwv yees li peb zaug ntawm kev thov preload, qhov zoo tshaj plaws preload yog ib feem peb ntawm qhov siab tshaj plaws axial load. "

Ntau dhau preload adversely cuam tshuam rau lub neej kev pab cuam thiab tshav kub tiam. Qhov siab tshaj plaws preload yuav tsum tau teem rau ntawm 10% ntawm qhov yooj yim dynamic load ntsuam xyuas (Ca) nyob rau hauv axial kev taw qhia.

Ib qho kev khi qis dua los ntawm kev ua haujlwm ntawm kev ua haujlwm thiab ib qho kev khi sab saud los ntawm qhov ntsuas qhov ntsuas. Tshaj dhau preload generates cua sov, cua sov ua rau thermal expansion ntawm cov ntsia hlau, thiab thermal expansion yog ib qho kev ua yuam kev ntawm qhov chaw - koj tuaj yeem poob qhov tseeb ntawm cov cua sov dua li qhov koj tau txais los ntawm qhov tawv nqaij.

Cov txiaj ntsig nruj: kev hloov pauv ntawm lub pob ntsia hlau preloaded nyob rau hauv kev thauj khoom yog ib nrab ntawm tib lub ntsia hlau yam tsis muaj preload.

Qib raug kuj tswj tau qhov kev ua siab ntev mounting. Permissible radial runout ntawm cov txiv ntseej ncig (µm):

Yog hais tias lub tsev uas nqa cov txiv ntoo tsis machined rau cov nuj nqis no, cov ntsia hlau yog loaded nyob rau hauv khoov txhua lub kiv puag ncig. Ib tug C3 ntsia hlau nyob rau hauv ib tug sloppy vaj tse ua phem tshaj C5 ntsia hlau nyob rau hauv ib tug zoo, thiab nws yuav tsis sai sai.

Linear txoj kev:loj, thaiv hom (square/flange, standard/heavy), raug chav kawm, preload classnrog cov series tau txheeb xyuas, interchangeable los yog matched, rail ntev thiab mounting orientation.

Pob Screws:txoj kab uas hla thiab txhuas, qib raug muab los ntawm qhov yuav tsum tau muab tso rau qhov tseeb tshaj qhov tseeb xov ntev,txiv ntseej hom thiab backlash specification cais, preload theem, thiab mounting nto tolerances lub tsev yuav tsum tau raws li.

Puas yog C3 pob ntsia hlau muaj xoom rov qab?

Tsis yog txhais. C3 screws feem ntau xa nrog cov txiv ntoo preloaded, uas yog qhov twg xoom rov qab los ntawm. Cov ntaub ntawv luam tawm qhia tau tias C7 screws nrog 0.003 hli backlash thiab lwm yam C7 screws nrog 0.030 hli. Qhia cov txiv ntseej.

Kuv yuav siv chav preload dab tsi?

Z0 rau qhov tsis tu ncua - kev taw qhia loads thiab kev tuav dav dav. ZA rau machining chaw thiab precision rooj. ZB qhov twg rigidity nyob rau hauv vibration thiab cuam tshuam yuav tsum tau. Nco ntsoov xyuas qhov feem pua ntawm qhov tseem ceeb tiv thaiv cov koob tshwj xeeb - cov lej tsis yog universal.

Puas yog cov kev sib pauv hloov tau tsawg dua?

Nyob rau tib tsab ntawv, yog - ntsuas. Thiab SP thiab UP cov chav kawm tsuas yog muaj raws li qhov tsis sib xws uas tsis yog - hloov pauv tau.

Puas yog hom flange muaj zog dua li square hom?

Tsis yog. Nyob rau tib txoj kev tsheb ciav hlau loj qhov kev ntsuam xyuas luam tawm yog tib yam. Qhov txawv yog mounting geometry.

Puas tuaj yeem siab dua preload them rau qhov tsis zoo machined mounting nto?

Tsis yog - nws ua rau tej yam phem dua. Preload plus mounting-induced stress tsub kom kev sib txhuam, tshav kub thiab sab hauv load, shortening lub neej.

Tianjin OuNaiDa Transmissions Technology muab cov txheej txheem kev qhia, pob ntsia hlau thiab cov khoom sib txuas sib txuas. Xa peb qhov tseeb ntawm qhov chaw, thauj khoom thiab mob stroke uas koj xav tau thiab peb yuav ua haujlwm rov qab rau qib thiab preload chav kawm es tsis hais cov lus qhia siab tshaj plaws muaj.

Txiv ntseej txoj kab uas hla