1. Cleverly tau cov kab zaub mov qhov tob, ntse siv trigonometric functions
Nyob rau hauv txoj kev tig, qee qhov workpieces uas nws lub voj voog sab hauv thiab sab nraud yog siab dua qhov kev txiav txim siab theem nrab feem ntau ua tiav. Vim muaj ntau yam xws li kev txiav cov cua sov, kev sib txhuam ntawm cov khoom ua haujlwm thiab cov cuab yeej, cov cuab yeej hnav, thiab rov ua qhov tseeb ntawm cov cuab yeej square, qhov zoo yog qhov nyuaj rau lav. Yuav kom daws tau qhov tseeb micro-txiav qhov tob, peb siv cov kev sib raug zoo ntawm sab nraud thiab lub hypotenuse ntawm daim duab peb sab raws li qhov xav tau ntawm txoj kev tig, thiab txav cov cuab yeej ntsug me me rau lub kaum sab xis, thiaj li ua tiav qhov tseeb. kab rov tav txiav qhov tob tus nqi ntawm cov cuab yeej micro txav tig. Lub hom phiaj, txuag kev ua haujlwm thiab sijhawm, ua kom cov khoom zoo thiab txhim kho kev ua haujlwm.
Tus nqi ntsuas ntawm qhov dav dav C620 tshuab dhos me me cov cuab yeej ncej yog 0.05mm rau ib ntu. Yog tias koj xav tau cov kab rov tav qhov tob ntawm qhov nkag ntawm 0.005mm, koj tuaj yeem tshawb xyuas lub rooj ua haujlwm sine trigonometric:
sin ＝{0}}005/0.05＝0.1 ＝5º44′
Yog li ntawd, ntev li ntev raws li cov riam me me tau txav mus rau 5º44 ', txhua zaus cov riam me me yog txav mus rau sab ntsug los kos ib daim phiaj, lub micro txav ntawm cov cuab yeej tig mus rau hauv txoj kev hla nrog qhov tob ntawm 0 .005mm tuaj yeem ua tiav.
2. Peb qhov piv txwv ntawm kev siv lub tshuab tig rov qab
Kev xyaum ntau lawm ntev tau ua pov thawj tias nyob rau hauv cov txheej txheem tig, kev siv cov tshuab txiav rov qab tuaj yeem tau txais cov txiaj ntsig zoo. Piv txwv li no:
(1) Cov khoom siv rov qab txiav xov yog martensitic stainless hlau
Thaum ua cov xov xov sab hauv thiab sab nraud nrog lub suab ntawm 1.25 thiab 1.75 hli, vim hais tias lub suab ntawm lub tshuab dhos ntsia hlau raug tshem tawm los ntawm lub suab ntawm lub workpiece, qhov txiaj ntsig ntawm tus nqi yog qhov tsis pom. Yog hais tias cov xov yog ua tiav los ntawm kev nqa tus kov ntawm cov txiv ntseej txuas thiab tshem tawm cov cuab yeej, random buckling feem ntau tshwm sim. Feem ntau, cov tshuab dhos zoo tib yam tsis muaj cov khoom siv buckling random, thiab cov txheej txheem ua tus kheej ntawm random buckling discs yog siv sijhawm ntev. Yog li ntawd, thaum ua no hom suab Thaum threaded, feem ntau. Cov txheej txheem tau txais yuav yog qhov qis-ceev parallel tig txoj kev, vim tias nws lig dhau los thim cov cuab yeej nrog kev kub ceev, yog li cov khoom siv tau qis. Ntxiv WeChat: Yuki7557 xa ib daim qauv ntawm macro program tutorial. Nws yog ib qho yooj yim rau gnaw lub cuab tam thaum tig, thiab lub nto roughness yog tsis zoo, tshwj xeeb tshaj yog nyob rau hauv lub Thaum ua 1Crl3, 2Crl3 thiab lwm yam martensitic stainless hlau cov ntaub ntawv xws li tsawg-ceev txiav, qhov tshwm sim ntawm tom cov riam yog qhov tseem ceeb. "peb-reverse" txiav txoj kev tsim nyob rau hauv machining xyaum, uas yog thim rov qab loading, thim rov qab txiav, thiab rov qab kev taw qhia ntawm txiav, yuav tau txais zoo kev txiav txim, vim hais tias txoj kev no muaj peev xwm tig threads ntawm kev kub ceev, thiab cov kev taw qhia ntawm lub tsiv. lub cuab yeej yog lub cuab yeej tawm ntawm lub workpiece 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 lub sij hawm ceev xov txiav. Txoj kev tshwj xeeb yog raws li nram no:
Thaum tig cov xov sab nraud, zom ib qho zoo sib xws hauv xov xa khoom (Daim duab 1);
Thaum tig cov xov sab hauv, zom ib qho rov qab hauv xov tig lub cuab yeej (Daim duab 2).
Tighten lub ntsiab ncej ntawm qhov rov qab sib txhuam phaj me ntsis ua ntej ua kom paub meej qhov kev sib hloov ceev ntawm qhov pib rov qab.
Teem lub xov cutter, kaw cov txiv ntseej sib cais, tig rau pem hauv ntej ntawm qis ceev thiab mus rau qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob Lub sijhawm no, lub cuab yeej tig tig los ntawm sab laug mus rau sab xis ntawm kev kub ceev. Txav lub cuab yeej mus rau sab xis, thiab tom qab txiav ob peb zaug hauv txoj kev no, cov xov nrog zoo roughness thiab siab precision tuaj yeem ua tiav.
(2) Rov qab tsheb knurling
Hlau filings thiab sundries tau yooj yim nkag mus rau ntawm lub workpiece thiab lub knurling cutter thaum lub sij hawm ib txwm rau pem hauv ntej knurling txheej txheem, ua rau muaj kev ntxhov siab heev ntawm lub workpiece, uas ua rau random bundles ntawm kab, crushed qauv los yog ob chav duab.
Yog tias txoj kev ua haujlwm tshiab ntawm tig lub ntsiab ncej ntawm lub tshuab dhos kab rov tav thiab thim rov qab tig lub knurling tau txais yuav, nws tuaj yeem tiv thaiv qhov tsis zoo los ntawm kev ua haujlwm sib luag thiab tau txais txiaj ntsig zoo.
(3) Rov qab tig sab hauv thiab sab nraud tapered yeeb nkab threads
Thaum tig ntau yam sab hauv thiab sab nraud tapered yeeb nkab threads nrog tsawg precision yuav tsum thiab cov khoom me me, koj tuaj yeem ncaj qha siv txoj kev ua haujlwm tshiab ntawm thim rov qab txiav thiab thim rov qab cov cuab yeej thauj khoom yam tsis siv cov cuab yeej profile, thiab siv nws txuas ntxiv thaum txiav. Lub tes tuav rab riam horizontally (qhov sab nraud tapered yeeb nkab xov txav los ntawm sab laug mus rau sab xis, thiab cov riam kab rov tav yooj yim los tswj qhov tob ntawm rab riam los ntawm txoj kab uas hla loj mus rau txoj kab me me) vim tias muaj kev kub siab ua ntej thaum riam yog qhib.
Qhov ntau ntawm daim ntawv thov ntawm hom tshiab no rov ua haujlwm thev naus laus zis hauv kev tig tshuab yog ntau thiab ntau dua, thiab nws tuaj yeem hloov kho raws li ntau yam xwm txheej.
3. Txoj kev ua haujlwm tshiab thiab cov cuab yeej tshiab tshiab rau kev drilling qhov me me
Nyob rau hauv txoj kev tig, thaum drilling ib lub qhov me dua 0.6 hli, vim lub me me txoj kab uas hla ntawm lub laum me ntsis, lub rigidity yog tsis zoo, thiab txiav ceev yuav tsis tau nce. Cov khoom siv ua haujlwm yog kub-resistant alloy thiab stainless hlau, thiab txiav kuj yog loj. Yog li ntawd, thaum drilling, yog siv nyob rau hauv txoj kev ntawm mechanical kis tau tus mob noj, lub laum me ntsis yog heev yooj yim mus ua txhaum. Cov hauv qab no qhia txog cov cuab yeej yooj yim thiab siv tau zoo thiab phau ntawv pub mis.
Ua ntej, tus thawj xyaum xyaum chuck yog hloov mus rau hauv ib tug ncaj shank floating hom, thiab lub drilling yuav smoothly nqa tawm raws li ntev raws li lub me me xyaum yog clamped rau lub floating laum chuck thaum ua hauj lwm. Vim 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 puller. Thaum drilling qhov me me, maj mam tuav lub laum chuck nrog koj txhais tes, ntxiv WeChat: Yuki7557 xa ib daim ntawv theej ntawm macro program tutorial, thiab koj tuaj yeem paub txog phau ntawv micro-quantity Pub, tho qhov me me sai, tswj kom muaj nuj nqis thiab ua kom ntev. kev pab cuam lub neej ntawm cov tho me me. Hloov kho ntau lub hom phiaj laum chuck kuj tseem siv tau rau cov xov me me nrog cov xov tapping, reaming, thiab lwm yam. Saib daim duab 3.
4. Shockproof rau kev sib sib zog nqus qhov
Hauv qhov sib sib zog nqus ua tiav, vim qhov me me aperture thiab slender boring tool bar, kev co yuav inevitably tshwm sim thaum tig qhov sib sib zog nqus qhov chaw nrog ib txoj kab uas hla ntawm Φ30-50mm thiab qhov tob ntawm txog 1000mm. Txhawm rau tiv thaiv lub cuab yeej los ntawm kev vibrating, txoj kev yooj yim tshaj plaws thiab zoo tshaj plaws yog Ntxiv ob qho kev txhawb nqa (nrog rau cov ntaub ntawv xws li daim ntaub bakelite) ntawm tus pas nrig lub cev, thiab nws qhov loj me yog nyob rau hauv lub sij hawm raws li qhov aperture loj. Thaum lub sij hawm txiav cov txheej txheem, vim hais tias lub block bakelite ua raws li qhov chaw txhawb nqa, lub cuab yeej pas nrig tsis yooj yim rau vibrate, thiab nws tuaj yeem ua cov txheej txheem sib sib zog nqus qhov zoo.
5. Kev tiv thaiv kev tawg ntawm qhov chaw me me laum
Nyob rau hauv txoj kev tig, thaum drilling qhov nruab nrab qhov me dua Φ1.5mm, qhov chaw xyaum yog yooj yim tawg. Txoj kev yooj yim thiab siv tau zoo ntawm kev tiv thaiv kev tawg yog tsis txhob xauv lub tailstock thaum drilling qhov chaw nruab nrab, kom qhov hnyav ntawm lub tailstock thiab lub tshuab txaj nto Cov kev sib txhuam generated ntawm lawv yog siv los laum qhov chaw nruab nrab. Thaum lub txiav tsis kam loj heev, lub tailstock yuav thim rov qab los ntawm nws tus kheej, yog li tiv thaiv qhov chaw xyaum.
6. Cov khoom siv tshuab nyuaj yuav tsum tau honed thiab ua tiav
Thaum peb ua tiav qhov kub-kub alloys, hardened steel thiab lwm yam nyuaj-rau-tshuab cov ntaub ntawv, lub nto roughness ntawm lub workpiece yuav tsum tau Ra0.20-0.05μm, thiab qhov tseeb dimension yog kuj siab. Kev ua tiav kawg feem ntau yog ua tiav ntawm lub tshuab sib tsoo.
7. Ceev ceev thiab unloading mandrel
Nyob rau hauv txoj kev tig, ntau yam ntawm cov khoom siv bearing feem ntau ntsib nyob rau hauv txoj kev tig ntawm lub voj voog sab nrauv thiab rov qab qhia lub khob hliav qab. Vim qhov loj batch loj, lub sijhawm hloov pauv cov cuab yeej siv sijhawm ntev dua li lub sijhawm txiav thaum lub sijhawm thauj khoom thiab tshem tawm, thiab cov khoom siv tau qis. Kev thauj khoom ceev thiab tshem tawm mandrel thiab ib rab riam ntau-edged (tungsten carbide) tig cov cuab yeej qhia hauv qab no tuaj yeem txuag lub sijhawm pabcuam thiab xyuas 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 mandrel nrog me me taper. Lub hauv paus ntsiab lus yog siv lub 0.02mm taper tom qab ntawm mandrel. Tom qab teeb tsa cov kabmob raug teeb tsa, cov khoom yuav raug nruj ntawm lub mandrel los ntawm kev sib txhuam. Tom qab lub voj voog yog thim rov qab thiab lub khob hliav qab yog 15 degree, qhov chaw nres tsheb yog siv los tshem tawm cov khoom kom sai thiab zoo.
8. Tig ntawm hardened steel qhov chaw
(1) Ib qho piv txwv tseem ceeb ntawm kev tig cov hlau tawv tawv
① Remanufacturing thiab regeneration ntawm high-speed steel W18Cr4V hardened broach (kho tom qab tawg)
② Tus kheej-ua tsis-tus qauv threaded plug gauge (hardened hardware)
③ Tig ntawm quenched hardware thiab txau qhov chaw
④ Tig ntawm quenched kho vajtse du plug gauge
⑤ Xov calendered kais hloov kho nrog cov cuab yeej siv hlau ceev
Rau cov cuab yeej hardened thiab ntau yam nyuaj-rau-machine cov khoom uas tau ntsib nyob rau hauv cov saum toj no ntau lawm, xaiv cov khoom tsim nyog cov cuab yeej thiab txiav nqi, raws li zoo raws li lub geometric lub kaum sab xis thiab txoj kev khiav hauj lwm ntawm lub cuab tam tuaj yeem tau txais txiaj ntsig zoo ntawm kev lag luam. Piv txwv li, kev rov tsim dua tshiab ntawm cov square broach tom qab nws tawg, yog tias nws tau muab tso rau hauv ntau lawm los tsim cov square broach, tsis yog tsuas yog lub voj voog tsim yuav ntev, tab sis kuj yog tus nqi yuav siab. Nyob rau hauv lub hauv paus ntawm tus thawj broach tawg, peb siv hard alloy YM052 thiab lwm yam hniav kom sharpen mus rau hauv tsis zoo pem hauv ntej lub kaum sab xis r. =-6 degree --8 degree, txiav ntug tuaj yeem tig tom qab ua tib zoo hauv av nrog oilstone, txiav ceev V =10-15m / min, tom qab lub voj voog sab nraud tig, qhov txiav yog txiav , thiab thaum kawg cov xov yog tig ( ntxhib thiab zoo tig) ), tom qab ntxhib tig, lub cuab tam yuav tsum tau re-sharpened thiab hauv av ua ntej fine-tig cov xov sab nraud, thiab tom qab ntawd npaj ib feem ntawm cov xov sab hauv txuas cov hlua khi, thiab ces luas nws tom qab txuas. Ib qho tawg thiab muab pov tseg square broach yog zoo li tshiab tom qab muab thiab kho.
(2) Kev xaiv cov cuab yeej txiav cov khoom siv rau kev tig thiab quenching hardware
①Qhov kev txiav ceev ntawm cemented carbide YM052, YM053, YT05 thiab lwm yam tshiab ntawm cov khoom siv yog feem ntau qis dua 18m / min, thiab qhov roughness ntawm lub workpiece tuaj yeem ncav cuag Ra1.6-0.80μm.
②Cubic boron nitride cuab tam FD tuaj yeem ua tiav ntau yam hlau tawv thiab cov tshuaj txau, qhov kev txiav ceev tuaj yeem ncav cuag 100m / min, thiab qhov roughness tuaj yeem ncav cuag Ra0.80-0.20μm. Lub compound cubic boron nitride tej cuab yeej DCS-F tsim los ntawm lub xeev-khiav Capital Machinery Factory thiab Guizhou No. 6 Sib Tsoo Wheel Factory kuj muaj qhov kev ua tau zoo no. Cov nyhuv ua haujlwm tsis zoo dua li cemented carbide (tab sis lub zog tsis zoo li cemented carbide, qhov tob me dua, thiab tus nqi kim dua li cemented carbide, thiab lub taub hau cutter yog yooj yim puas yog siv tsis raug).
⑨ cov cuab yeej ceramic, qhov txiav ceev yog 40-60m / min, thiab lub zog tsis zoo.
Cov cuab yeej saum toj no muaj lawv tus kheej cov yam ntxwv hauv kev tig quenched qhov chaw, thiab yuav tsum tau xaiv raws li cov xwm txheej tshwj xeeb xws li tig cov khoom sib txawv thiab qhov sib txawv hardness.
(3) Kev xaiv hom quenched steel qhov chaw ntawm cov khoom sib txawv thiab cov cuab yeej ua haujlwm
quenched steel qhov chaw ntawm cov khoom sib txawv muaj qhov sib txawv kiag li ntawm cov cuab yeej ua tau zoo nyob rau hauv tib lub hardness, uas tuaj yeem muab faib ua peb pawg hauv qab no;
① High-alloy steel: hais txog cov cuab yeej hlau thiab cov hlau tuag (feem ntau yog ntau yam high-speed steels) uas nws tag nrho cov ntsiab lus alloying tshaj 10 feem pua.
②Alloy steel: hais txog cov cuab yeej hlau thiab cov hlau tuag nrog cov ntsiab lus alloy ntawm 2 mus rau 9 feem pua, xws li 9SiCr, CrWMn thiab lub zog siab alloy cov qauv hlau.
③ Carbon steel: suav nrog ntau yam khoom siv carbon steel thiab carburizing steels xws li T8, T10, No. 15 steel lossis carburizing steel ntawm No. 20 steel.
Rau cov pa roj carbon steel, lub microstructure thaum ua tom qab quenching yog tempered martensite thiab ib tug me me ntawm carbide, thiab hardness yog HV 800-1000, uas yog nyuaj tshaj WC thiab TiC nyob rau hauv cemented carbide thiab A12D3 nyob rau hauv ceramic cov cuab yeej. Nws yog qis dua, thiab nws qis dua qhov kub hardness ntawm martensite yam tsis muaj alloying ntsiab, thiab feem ntau tsis tshaj 200 degree.
Raws li cov ntsiab lus ntawm alloying ntsiab nyob rau hauv steel nce, cov ntsiab lus ntawm carbides nyob rau hauv steel tom qab quenching thiab tempering kuj nce, thiab cov hom ntawm carbides ua heev complex. Ua piv txwv, cov ntsiab lus ntawm carbides hauv microstructure tom qab quenching thiab tempering tuaj yeem ncav cuag 10-15 feem pua (ntim piv) thiab muaj hom carbides xws li MC, M2C, M6, M3, thiab 2C, ntawm cov uas VC Lub hardness yog siab (HV2800), uas yog ntau tshaj qhov hardness ntawm lub hard point theem nyob rau hauv cov khoom siv dav dav. Tsis tas li ntawd, vim muaj ntau cov ntsiab lus alloying, lub thermohardness ntawm martensite uas muaj ntau yam alloying ntsiab tuaj yeem nce mus txog 600 degree C, yog li lub machinability ntawm hardened steel nrog tib macroscopic hardness tsis zoo li qub, qhov sib txawv loj heev. Ua ntej tig lub hardened steel, txheeb xyuas yam uas nws belongs rau, tuav nws cov yam ntxwv, thiab xaiv cov cuab yeej tsim nyog, txiav nyiaj thiab cov cuab yeej geometry. Cov txheej txheem tig ntawm hardened steel qhov chaw tuaj yeem ua tiav smoothly.
