Kaum Lub Tswv Yim Rau CNC Tsheb

1. Nws txawj ntse kom tau txais cov khoom noj sib sib zog nqus me me. Nyob rau hauv txoj kev tig, daim duab peb sab muaj nuj nqi feem ntau yog siv los ua ib co workpieces nrog lub puab thiab sab hauv lub voj voog saum toj ob qhov tseeb. Vim yog kev txiav cov cua sov, kev sib txhuam ntawm cov khoom ua haujlwm thiab cov cuab yeej ua rau cov cuab yeej hnav thiab rov ua qhov tseeb ntawm cov cuab yeej square, thiab lwm yam, yog li qhov zoo yog qhov nyuaj rau lav. Yuav kom daws tau qhov tseeb micro-qhov tob tob hauv txoj kev tig, peb tuaj yeem siv qhov kev sib raug zoo ntawm sab nraud thiab oblique sab ntawm daim duab peb sab raws li xav tau los txav cov riam me me ntev ntev ntawm lub kaum sab xis kom ncav cuag txoj kab rov tav noj qhov tob. micro-moving tig tool. Lub hom phiaj: txuag kev ua haujlwm thiab sijhawm, ua kom cov khoom zoo, thiab txhim kho kev ua haujlwm. Qhov dav dav C620 tshuab dhos cuab yeej tuav tus nqi yog 0.05mm ib daim phiaj. Yog tias koj xav tau cov kab rov tav noj qhov tob ntawm 0.005mm, kos lub sine trigonometric muaj nuj nqi lub rooj: sinα = 0.005/0.05 = 0.1 α = 5o44', yog li txav cov riam me me. Thaum nws yog 5o44 ', thaum tsiv lub longitudinally engraved disc ntawm lub me me riam, nws muaj peev xwm ncav cuag lub micro txav ntawm lub cuab tam nrog ib tug tob tus nqi ntawm 0.005mm nyob rau hauv lub lateral kev taw qhia.

 

2. Daim ntawv thov ntawm thim rov qab siv tshuab nyob rau hauv peb lub sij hawm ntev ntau lawm ua pov thawj tias nyob rau hauv cov txheej txheem tig, rov qab txiav tshuab tuaj yeem ua tiav cov txiaj ntsig zoo. Cov piv txwv hauv qab no yog raws li nram no:

(1) Thaum cov khoom siv rov qab txiav xov yog martensitic stainless hlau daim nrog ib sab hauv thiab sab nraud xov workpiece nrog lub suab ntawm 1.25 thiab 1.75 hli txij li lub suab ntawm lub tshuab dhos ntsia hlau raug tshem tawm los ntawm lub suab ntawm lub workpiece, tus nqi tau txais. yog tus nqi inexhaustible. Yog hais tias cov xov yog machined los ntawm lifting tus tuav ntawm lub txee lub txiv ntseej, cov xov feem ntau yog tawg. Feem ntau, lub tshuab dhos zoo tib yam tsis muaj cov khoom siv tsis sib haum xeeb, thiab cov txheej txheem ntawm tus kheej tau siv sijhawm ntau hauv kev ua cov suab zoo li no. Thaum threading, nws yog feem ntau. Cov txheej txheem saws yog qhov qis-ceev du txoj kev tig vim tias qhov ceev ceev tuaj tos tsis txaus los thim riam, yog li cov khoom siv tau qis, cov ntaub ntawv tau yooj yim generated thaum tig, thiab qhov saum npoo roughness tsis zoo, tshwj xeeb tshaj yog nyob rau hauv kev ua cov martensite stainless hlau xws li 1Crl3, 2 Crl3, thiab lwm yam. Thaum txiav ntawm tsawg ceev, qhov tshwm sim mob yog qhov tseem ceeb. Qhov thim rov qab txiav, thim rov qab-txiav, thiab rov qab-txoj kev "peb-rov qab" txiav txoj kev tsim nyob rau hauv machining xyaum yuav ua tau ib tug zoo tag nrho cov nyhuv vim hais tias cov txheej txheem yuav tig cov xov ntawm kev kub ceev, thiab cov kev taw qhia ntawm lub cuab tam. yog thim rov qab los ntawm sab laug mus rau sab xis, yog li tsis muaj qhov tsis zoo uas lub cuab yeej tsis tuaj yeem thim rov qab thaum txiav cov xov ntawm kev kub ceev. Cov txheej txheem tshwj xeeb yog raws li hauv qab no: Thaum siv cov xov sab nraud, zom ib qho zoo sib xws hauv xov tig lub cuab yeej (Fig. 1);

Sib tsoo ib qho rov qab xov sab hauv tig lub cuab yeej (Daim duab 2).

 

Ua ntejtshuab, kho cov ntxaiv ntawm qhov rov qab sib txhuam phaj me ntsis kom ntseeg tau tias qhov rov qab tig ceev. Rau ib tug zoo xov cutter, kaw qhov qhib thiab kaw txiv ntseej, pib rau pem hauv ntej thiab qis ceev mus rau lub khoob sipe, thiab ces muab cov xov tig lub cuab tam rau hauv qhov tsim nyog qhov tob ntawm txiav; koj tuaj yeem thim rov qab. Lub sijhawm no, lub cuab yeej tig yog sab laug ntawm kev kub ceev. Los ntawm kev txiav cov riam mus rau sab xis thiab txiav cov riam raws li txoj kev no, cov xov uas muaj qhov siab roughness thiab siab precision tuaj yeem raug machined.

(2) Nyob rau hauv cov txheej txheem knurling ib txwm rov qab knurling, cov ntaub ntawv hlau thiab cov khib nyiab tau yooj yim nkag mus rau ntawm lub workpiece thiab knurling riam, ua rau lub workpiece overstressed, ua rau cov kab yuav bundled, tus qauv yog crushed los yog ghosted, thiab lwm yam. . kev ua tau zoo tuaj yeem tau txais.

(3) Rov qab tig ntawm sab hauv thiab sab nraud taper yeeb nkab threads Thaum tig ntau yam sab hauv thiab sab nraud taper yeeb nkab threads nrog tsawg precision thiab tsawg batch, nws muaj peev xwm ncaj qha siv thim rov qab txiav thiab rov qab loading yam tsis muaj pwm ntaus ntawv. Nyob rau hauv txoj kev tshiab ntawm kev ua haujlwm, thaum txiav sab ntawm lub cuab yeej, lub cuab yeej txav horizontally ntawm sab laug mus rau sab xis. Cov ntaub ntawv transverse ua kom yooj yim rau kev nkag siab qhov tob ntawm cov ntaub ntawv los ntawm txoj kab uas hla loj mus rau txoj kab me me. Yog vim li cas yog cov ntaub ntawv. Muaj kev ntxhov siab ua ntej. Qhov ntau ntawm cov ntawv thov ntawm hom tshiab no rov qab ua haujlwm thev naus laus zis hauv kev siv tshuab tig tau nce zuj zus thiab tuaj yeem hloov pauv mus rau ntau qhov xwm txheej tshwj xeeb.

 

3. Txoj kev ua haujlwm tshiab thiab cov cuab yeej tshiab rau drilling qhov me me Nyob rau hauv txoj kev tig, thaum lub qhov yog tsawg tshaj li 0.6 hli, txoj kab uas hla ntawm lub laum me me, lub rigidity tsis zoo, txiav ceev tsis nce, thiab cov khoom siv workpiece. yog tshav kub-resistant alloy thiab stainless hlau, thiab txiav kuj yog loj, yog li thaum drilling, xws li kev siv cov neeg kho tshuab kis tau tus mob pub, lub laum yog heev yooj yim mus ua txhaum, cov nram qab no piav qhia txog ib tug yooj yim thiab zoo cov cuab yeej thiab phau ntawv pub. txoj kev. Ua ntej, tus thawj xyaum chuck yog hloov mus rau hauv ib tug ncaj shank floating hom. Thaum lub me laum me ntsis yog clamped rau ntawm floating laum chuck, qhov drilling tuaj yeem ua tau zoo. Vim hais tias sab nraub qaum ntawm lub laum me ntsis yog ib qho ncaj shank zawv zawg haum, nws tuaj yeem txav tau yooj yim hauv lub tes tsho rub. Thaum lub qhov me me yog drilled, lub laum chuck tuaj yeem maj mam tuav ntawm tes, phau ntawv micro pub tuaj yeem pom tau, thiab lub qhov me me tuaj yeem raug drilled sai sai. Zoo thiab muaj nuj nqis thiab txuas ntxiv lub neej kev pab cuam ntawm kev xyaum me me. Kev hloov kho ntau lub hom phiaj chuck kuj tuaj yeem siv rau cov xov me me hauv xov tapping, reaming, thiab lwm yam. (Yog tias lub qhov loj dua yog drilled, tus pin txwv tuaj yeem muab tso rau ntawm lub tes tsho rub thiab lub shank ncaj).

 

4. Kev tiv thaiv kev vibration hauv qhov sib sib zog nqus machining Hauv qhov sib sib zog nqus machining, vim qhov me me aperture, lub cuab yeej tho txawv yog slender. Nws yog ib qho tsim nyog los tsim kev co thaum lub qhov taub yog Φ30 ~ 50mm, thiab qhov tob yog li 1000mm. Nws yog qhov zoo tshaj plaws thiab muaj txiaj ntsig zoo los tiv thaiv kev vibration ntawm arbor. Txoj kev yog muab ob qho kev txhawb nqa (siv cov khoom siv xws li daim ntaub bakelite) rau lub cev shank, thiab qhov loj me yog tib yam li qhov loj me me. Thaum lub sij hawm txiav, lub arbor tsis tshua muaj kev vibration vim qhov chaw ntawm cov slats, thiab qhov tob qhov ntawm qhov zoo tuaj yeem ua tiav.

 

5. Kev tiv thaiv kev tawg ntawm qhov chaw me me laum yog tsawg dua qhov chaw nruab nrab ntawm Φ1.5mm thaum lub qhov drilling tsawg dua qhov nruab nrab ntawm Φ1.5mm. Txoj kev yooj yim thiab siv tau los tiv thaiv kev tawg yog kom tsis txhob xauv lub tailstock thaum drilling lub qhov nruab nrab tab sis cia lub tailstock. Tus kheej qhov hnyav thiab kev sib txhuam tsim ntawm lub tshuab txaj saum npoo yog siv los laum qhov chaw nruab nrab. Thaum lub txiav tsis kam loj dhau, lub tailstock yuav thim rov qab los ntawm nws tus kheej, yog li tiv thaiv qhov chaw xyaum.

 

 

6. Kev tiv thaiv kev vibration ntawm tig nyias-walled workpieces Thaum lub sij hawm tig cov txheej txheem ntawm nyias-walled workpieces, kev vibrations yog feem ntau generated vim tsis zoo steel zog ntawm workpieces; tshwj xeeb tshaj yog thaumtig stainless hlauthiab tshav kub-resistant alloys, qhov kev co yog qhov tseem ceeb, qhov roughness ntawm lub workpiece yog tsis tshua muaj neeg pluag, thiab cov kev pab cuam lub neej ntawm lub cuab tam shortens. Txoj kev yooj yim tshaj plaws ntawm kev sib cais kev poob siab hauv ntau qhov kev tsim khoom tau piav qhia hauv qab no.

(1) Thaum tig lub voj voog sab nrauv ntawm cov hlau tsis muaj steel hollow slender tube workpiece, lub qhov tuaj yeem ntim nrog ntoo chips thiab ntsaws. Nyob rau tib lub sijhawm, ob qhov kawg ntawm lub workpiece yog ntsaws nrog lub ntsaws ntsaws, thiab tom qab ntawd cov kev txhawb nqa claw ntawm lub cuab yeej yog hloov nrog Cov kev txhawb nqa melon ntawm cov khoom siv bakelite tuaj yeem kho qhov xav tau arc los ua qhov tig ntawm stainless hlau hollow. rhiab rod. Txoj kev yooj yim no tuaj yeem tiv thaiv kev vibration thiab deformation ntawm hollow slender pas nrig thaum lub sij hawm txiav.

(2) Thaum tig lub puab qhov ntawm lub tshav kub-resistant (high-nickel-chromium) alloy nyias-walled workpiece, lub rigidity ntawm lub workpiece yog tsis zoo, lub shank yog slender, thiab ib tug loj resonance tshwm sim tshwm sim thaum lub sij hawm txiav, uas yog lub luag haujlwm loj heev rau kev puas tsuaj rau lub cuab yeej thiab ua rau khib nyiab. Yog tias cov khoom siv poob siab, xws li cov hlua roj hmab los yog daim txhuam cev, raug mob nyob ib ncig ntawm qhov chaw ua haujlwm, cov nyhuv shockproof tuaj yeem ua tiav.

(3) Thaum tig lub voj voog sab nraud ntawm lub tshav kub-resistant alloy nyias-walled lub tes tsho workpiece, vim muaj cov ntsiab lus zoo xws li kev ua haujlwm siab ntawm cov cua sov-resistant alloy, nws yooj yim los tsim kev co thiab deformation thaum txiav. Yog hais tias cov roj hmab qhov los yog paj rwb xov yog muab tso rau hauv lub workpiece qhov, cov khib nyiab yog siv, ces txoj kev clamping ntawm ob qho tag nrho yuav siv tau los tiv thaiv kev vibration thiab deformation ntawm workpiece thaum lub sij hawm txiav, thiab high-zoo. nyias-walled workpiece tuaj yeem ua tiav.

 

7. Cov cuab yeej tiv thaiv kev vibration ntxiv tau yooj yim ua rau muaj kev vibration vim qhov tsis zoo ntawm lub elongated ncej-hom workpiece thaum lub sij hawm ntau txoj kev txiav, uas ua rau tsis zoo nto roughness ntawm lub workpiece thiab kev puas tsuaj rau lub cuab yeej. Ib txheej ntawm cov cuab yeej tiv thaiv kev vibration ntxiv tuaj yeem daws tau qhov teeb meem kev vibration ntawm qhov sib luag hauv cov txheej txheem grooving (saib daim duab 10). Txhim kho tus kheej-ua shockproof cuab yeej nyob rau hauv ib txoj hauj lwm tsim nyog ntawm lub cuab yeej square tuav ua ntej ua hauj lwm. Tom qab ntawd, nruab qhov yuav tsum tau ua kom zoo li lub cuab yeej tig ntawm lub cuab yeej square, kho qhov kev ncua deb thiab compression npaum li cas ntawm lub caij nplooj ntoos hlav, thiab tom qab ntawd ua haujlwm. Thaum lub cuab yeej tig txiav mus rau hauv qhov chaw ua haujlwm, cov cuab yeej tiv thaiv kev vibration ntxiv tau muab tso rau ntawm qhov chaw ua haujlwm tib lub sijhawm, uas yog qhov zoo rau kev poob siab. nyhuv.

 

8. Cov khoom siv tshuab nyuaj yog honed thiab tiav. Thaum peb nyob rau hauv cov ntaub ntawv nyuaj-rau-tshuab xws li high-temperature alloys thiab hardened steels, lub nto roughness ntawm lub workpiece yuav tsum tau Ra0.20-0.05μm, thiab qhov seem qhov tseeb kuj siab. Kev ua tiav kawg feem ntau yog nqa tawm ntawm lub tshuab sib tsoo. Ua nws tus kheej yooj yim honing cuab tam thiab honing log, thiab tau txais ib tug zoo economic nyhuv los ntawm honing es tsis txhob ntawm kev sib tsoo txheej txheem ntawm lub tshuab dhos.

 

9. Kev thauj khoom ceev thiab tshem tawm mandrels feem ntau ntsib ntau hom kev coj tus kheej hauv cov txheej txheem tig. Lub voj voog sab nrauv thiab inverted qhia taper lub kaum sab xis ntawm cov kabmob sib dhos. Vim qhov loj batch loj, lub sijhawm thauj khoom thiab tshem tawm yog ntau tshaj li lub sijhawm txiav. Ntev, tsawg ntau lawm efficiency. Qhov ceev-loading mandrel thiab ib rab riam ntau lub ntsej muag (hlau tawv) tig cov cuab yeej tau piav qhia hauv qab no tuaj yeem txuag lub sijhawm pabcuam thiab ua kom cov khoom zoo hauv kev ua haujlwm ntawm ntau yam kabmob lub tes tsho. Cov txheej txheem ntau lawm yog raws li nram no. Ua ib qho yooj yim, me me taper mandrel. Lub hauv paus ntsiab lus yog siv 0.02mm kab ntawm taper nyob rau sab nraum qab ntawm mandrel. Cov kabmob teeb tsa yog nruj ntawm lub mandrel los ntawm kev sib txhuam, thiab tom qab ntawd siv ib rab riam ntau lub ntsej muag tig yog siv. Tom qab puag ncig, lub kaum sab xis ntawm 15 ° yog thim rov qab, thiab qhov chaw nres tsheb yog nqa tawm kom tshem tawm cov khoom sai thiab zoo, raws li pom hauv daim duab

 

10. Tig ntawm hardened steel qhov chaw

(1) Ib qho piv txwv tseem ceeb ntawm hardened steel tig 1 Reconstruction of high-speed steel W18Cr4V hardened broach (kho tom qab tawg) 2 homemade non-standard thread plug gauge (hardening hardware) 3 quenching hardware and sprayingTurningg off four pieces of quenching hardware du nto plugging 5 Xov dov kais dej ua los ntawm high-speed steel cuab yeej Rau quenching hardware thiab ntau yam khoom siv nyuaj uas tau ntsib nyob rau hauv cov khoom saum toj no, xaiv cov cuab yeej tsim nyog thiab txiav cov nyiaj thiab cov cuab yeej Geometric cov ces kaum thiab cov txheej txheem ntawm kev ua haujlwm tuaj yeem ua tiav kev lag luam zoo tag nrho. Piv txwv li, tom qab lub square broach tawg, yog hais tias nws yog re-launched los tsim ib tug square broach, tsis tsuas yog lub manufacturing voj voog ntev tab sis kuj tus nqi yog siab. Nyob rau hauv lub hauv paus ntawm tus thawj broach, peb siv cov hniav ntawm lub hard alloy YM052 sharpen nws mus rau hauv ib tug tsis zoo. Pem hauv ntej lub kaum sab xis r. = -6 ° ~ -8 °, txiav ntug tuaj yeem tig los ntawm kev sib tsoo nrog cov roj pob zeb. Qhov ceev txiav yog V = 10 ~ 15m / min. Tom qab lub voj voog sab nrauv, qhov khoob khoob khoob yog txiav, thiab thaum kawg, cov xov tau muab faib ua ntxhib thiab nplua. ), tom qab roughing, lub cuab tam yuav tsum tau remed thiab av tom qab lub tshiab sharpening thiab sib tsoo. Tom qab ntawd, cov xov sab hauv ntawm lub pas nrig txuas yuav tsum tau npaj, thiab qhov sib koom ua ke yuav tsum tau txiav. Ib tug square broach nrog ib tug tawg seem tau kho tom qab tig, thiab nws yog qub li tshiab.

(2) Kev xaiv cov cuab yeej siv rau kev xa thiab quenching hardware 1 Cov qib tshiab xws li cov alloy nyuaj YM052, YM053, YT05, thiab lwm yam., qhov kev txiav ceev yog qis dua 18m / min, thiab qhov roughness ntawm lub workpiece tuaj yeem ncav cuag Ra1.6. ~ 0.80m. 2 cubic boron nitride cuab tam FD tuaj yeem ua txhua yam ntawm cov hlau tawv tawv thiab cov khoom txau, txiav ceev txog 100m / min, nto roughness txog Ra0.80 ~ 0.20μm. Cov khoom sib xyaw cubic boron nitride DCS-F tsim los ntawm Lub Xeev Peev Machinery Cog thiab Guizhou No.6 Sib Tsoo Wheel Factory kuj muaj qhov ua tau zoo no. Cov nyhuv ua haujlwm yog qhov phem dua li ntawm cov cemented carbide (tab sis lub zog tsis zoo li ntawm cov tawv tawv; nws yog qhov tob dua thiab pheej yig dua li cov alloy nyuaj, thiab nws yooj yim rau kev puas tsuaj yog tias nws siv tsis raug). cuaj cov cuab yeej ceramic, txiav ceev ntawm 40 ~ 60m / min, lub zog tsis zoo. Tag nrho cov cuab yeej saum toj no muaj lawv tus kheej cov yam ntxwv hauv kev tig thiab quenching qhov chaw thiab yuav tsum tau xaiv raws li cov xwm txheej tshwj xeeb ntawm kev xa cov khoom sib txawv thiab qhov sib txawv hardness.

(3) Kev xaiv ntawm ntau hom hardened steel qhov chaw thiab cov cuab yeej cuab tam Sib txawv cov ntaub ntawv ntawm hardened steel qhov chaw nyob rau hauv tib lub hardness, qhov yuav tsum tau rau cov cuab yeej kev ua tau zoo sib txawv kiag li, raws li loj raws li nram no peb pawg: 1 siab alloy steel: hais txog alloying. Cov khoom siv hlau thiab cov hlau tuag (feem ntau yog ntau yam high-speed steels) nrog rau tag nrho cov khoom ntawm ntau tshaj 10%. 2 alloy steel: hais txog cov cuab yeej hlau thiab cov hlau tuag nrog cov ntsiab lus alloying ntawm 2 ~ 9%, xws li 9SiCr, CrWMn, thiab siab zog alloy cov qauv hlau. Peb cov pa roj carbon steel: suav nrog ntau cov pa roj carbon monoxide steel thiab carburized steel xws li T8, T10, 15 steel, lossis 20 gauge steel carburizing steel. Rau cov pa roj carbon steel, lub microstructure tom qab quenching yog tempered martensite thiab ib qho me me ntawm carbide, cov plaub hau tawv HV800 ~ 1000, tshaj qhov hardness ntawm WC thiab TiC hauv cemented carbide thiab A12D3 hauv cov cuab yeej ceramic. Nws yog qis dua, thiab nws tsis tshua kub-nyuaj dua li martensite yam tsis muaj alloying ntsiab lus thiab feem ntau tsis tshaj 200 ° C. Raws li cov ntsiab lus ntawm cov ntsiab lus alloying hauv cov hlau nce, cov ntsiab lus carbide ntawm cov hlau tom qab quenching thiab tempering nce, thiab hom carbide yuav nyuaj heev. Kev siv cov hlau nrawm ua piv txwv, cov ntsiab lus ntawm carbides hauv microstructure tom qab quenching thiab tempering tuaj yeem ncav cuag 10-15% (ntim piv) thiab muaj carbides ntawm MC, M2C, M6 M3, 2C, thiab lwm yam. High hardness (HV2800) yog ntau dua qhov hardness ntawm hard point theem nyob rau hauv cov khoom siv dav dav. Tsis tas li ntawd, vim muaj ntau cov ntsiab lus alloying, kub hardness ntawm martensite uas muaj ntau yam alloying ntsiab tuaj yeem nce mus txog 600 ° C. Lub zog ua haujlwm ntawm cov hlau tawv tawv nrog tib lub microhardness tsis zoo ib yam, thiab qhov sib txawv loj heev. Ua ntej tig hardened steel qhov chaw, lawv raug soj ntsuam kom muaj nyob rau hauv qeb. Master tus yam ntxwv thiab xaiv cov khoom siv tsim nyog, txiav nyiaj, thiab cov cuab yeej geometry. Lub kaum sab xis tuaj yeem ua kom tiav txoj hlua ntawm cov hlau tawv tawv.