Raws li peb txhua tus paub,CNC knurled pob qhov roojhnav ntau dua-resistant, cuam tshuam-resistant, thiab muaj lub neej ua haujlwm ntev dua. Tab sis koj puas paub yuav ua li cas knurled knobs tiag tiag machined siv CNC machining?
1. Txheej txheem kev npaj thiab tsim kev soj ntsuam
Lub hauv paus ntawm kev ua tiav machining yog nyob rau hauv kev npaj ua tib zoo. Tus qauv CAD yuav tsum raug txheeb xyuas tag nrho cov yam ntxwv tseem ceeb: txoj kab uas hla loj, tuav ntu profile, knurling qauv qhov ntev (pob zeb diamond, ncaj, lossis ntoo khaub lig), thiab ib qho undercuts lossis threading rau kev sib dhos. Tseem ceeb heev, qhov chaw knurling yuav tsum tau qhia meej meej. Tus tsim qauv yuav tsum txiav txim siab seb lub knurling yuav raug machined ncaj qha los ntawm CNC toolpaths lossis ntxiv rau hauv kev ua haujlwm thib ob uas siv cov cuab yeej knurling. Qhov kev txiav txim siab no cuam tshuam rau kev xaiv cov cuab yeej, cov phiaj xwm phiaj xwm, thiab lub sijhawm mus ncig.
Kev xaiv cov khoom tseem ceeb sib npaug. Cov kev xaiv uas muaj xws li:
- Aluminium 6061/7075: Kev ua tau zoo heev, lub zog zoo - rau - qhov hnyav piv, thiab lees txais knurling zoo.
- Brass C360: Ua haujlwm zoo tshaj plaws thiab ua kom zoo nkauj, zoo tagnrho rau siab - cov pob qhov zoo.
- Stainless hlau 303/304: Siv rau kev ua haujlwm ntev thiab kev tiv thaiv corrosion, tab sis yuav tsum tau siv cov cuab yeej muaj zog thiab tsis muaj zog.
- Plastics (piv txwv li, Delrin, Nylon): Feem ntau siv rau insulated los yog lub teeb yuag knobs; knurling yuav tsum tau ua tib zoo ua kom tsis txhob deformation ntawm cov khoom.
2. CNC Machining Strategies
A. Thawj Tig / Milling:
Rau cov pob qhov rooj cylindrical, CNC tig yog qhov haujlwm tseem ceeb. 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 Rau cov tsis yog-cylindrical knobs, CNC zeb ua cov profile no-shaping operations. Qhov saum npoo tiav ua ntej knurling yog qhov tseem ceeb, vim tias qhov tsis zoo yuav raug xa mus rau hauv cov qauv knurling.
B. Knurling ua haujlwm ntawm CNC:
Muaj ob txoj hauv kev CNC thawj los tsim cov qauv knurled:
Daim Ntawv Knurling nrog Knurling Tool:Lub cuab yeej tshwj xeeb knurling (ib zaug - lub log lossis ob lub - log) yog ntsia rau ntawm lub cuab yeej turret. Qhov kev pab cuam CNC hais kom cov cuab yeej nias rau hauv qhov kev sib hloov ua haujlwm ntawm ib qho chaw radial tshwj xeeb thiab pub raws cov axis. Lub siab deforms cov khoom, tsim cov qauv. Qhov no yuav tsum tau ua tib zoo xam qhov pib txoj kab uas hla los xyuas kom meej cov qauv yob ntawm kom raug yam tsis muaj slipping. Coolant yog qhov tseem ceeb los tswj cov cua sov thiab swarf.
Machined Knurling:Es tsis txhob sib sau, tus qauv yogtxiavsiv lub me me - txoj kab uas hla kawg zeb (rau mills) los yog cov cuab yeej grooving / daim ntawv (rau tshuab dhos). CAM qhov kev pab cuam tsim cov cuab yeej meej uas rov ua dua lub pob zeb diamond lossis cov qauv ncaj. Txoj kev no muaj kev tswj hwm tshwj xeeb tshaj qhov tob, zoo, thiab zoo tagnrho rau cov ntaub ntawv tsis yooj yim los yog cov qauv nyuaj uas daim ntawv knurling yuav ua rau lub cev qhuav dej. Txawm li cas los xij, nws yog lub sijhawm ntau dua -siv.
3. Qhov tseem ceeb Technical Parameters thiab Tooling
Ua ntej -Knurling Diameter:Feem ntau suav raws li: Loj Diameter - (Knurling Depth * 2). Tus nqi tiag tiag yuav xav tau kev hloov kho raws li cov khoom siv thiab cov cuab yeej.
Pub thiab Ceev (rau Daim Ntawv Knurling):Tsawg mus rau nruab nrab qhov nrawm nrawm nrog qhov sib npaug, qeeb qeeb yog qhov tseem ceeb kom tso cai rau cov khoom ntws thiab xyuas kom meej tus qauv huv yam tsis muaj kev tsim kua muag. Rau txhuas, qhov ceev ntawm 50-100 SFM (Ntoo taw ib feeb) yog ntau.
Tooling:Daim ntawv knurling cov cuab yeej yuav tsum sib phim rau lub suab uas xav tau (piv txwv li, TPI - Teeth Per Inch lossis metric pitch). Rau machined knurling, cuab yeej rigidity yog qhov tseem ceeb; carbide kawg mills nrog geometry tsim nyog yog nyiam.
Coolant:Siab -siab, cov dej txias txaus tsis yog- sib tham tau rau daim ntawv knurling kom yaug cov chips los ntawm tus qauv, tiv thaiv galling, thiab ntev lub cuab yeej.
4. Kev Tswj Xyuas Zoo thiab Kev Tshawb Fawb
Tom qab-kev tshuaj xyuas tshuab ua kom pom tseeb ua raws. Cov kev ntsuas tseem ceeb suav nrog:
Dimensional raug:Siv cov calipers lossis micrometers rau cov kab loj loj thiab cov yam ntxwv tseem ceeb.
Knurling Pattern Consistency:Visually soj ntsuam rau ob - taug qab (tus qauv misaligned) los yog tsis tiav tsim. Ib qho piv txwv yuav raug hla -section los ntsuas qhov tob ntawm tus qauv.
Nto tiav:Cov cheeb tsam uas tsis yog -knurled yuav tsum tau raws li Ra qhov tseem ceeb. Deburring, feem ntau ntawm kev txhuam los yog tumbling, yog ib qho tseem ceeb kawg kauj ruam kom tshem tawm cov npoo ntse ntawm cov qauv knurled.
Related Q & A ntawm Machining Knurled Knobs nrog CNC:
Q1: Dab tsi yog qhov txiaj ntsig tseem ceeb ntawm kev siv CNC rau knurled knobs piv rau cov txheej txheem ib txwm?
A1:CNC machining ua kom tsis muaj qhov sib xws thiab qhov tseeb ntawm thawj feem mus rau txhiab. Cov txheej txheem yog tag nrho cov programmable, tshem tawm qhov sib txawv ntawm qhov sib txawv hauv phau ntawv tshuab dhos knurling, thiab tso cai rau kev sib xyaw ua ke uas knurling tsuas yog ib kauj ruam hauv kev ua tiav, tsis tuaj yeem siv lub voj voog machining.
Q2: Kuv yuav xaiv li cas ntawm daim ntawv knurling thiab machined (txiav) knurling ntawm CNC?
A2:Xaivdaim ntawv knurlingrau kev ceev, cov khoom siv tau zoo, thiab cov tsos ntawm cov khoom siv zoo li aluminium thiab tooj dag. Xaivtshuab knurlingrau cov ntaub ntawv nkig (xws li, qee cov yas), kev nyuaj lossis tsis yog- cov qauv qauv, lossis thaum muaj kev tswj xyuas qhov kev tshem tawm cov nti thiab qhov kawg qhov ntev, yuav tsum tau txais lub sijhawm ntev dua.
Q3: Vim li cas qhov pre-knurling txoj kab uas hla yog qhov tseem ceeb, thiab nws txiav txim siab li cas?
A3:Qhov ua ntej -knurling txoj kab uas hla txiav txim siab seb lub pob khawm cov hniav yuav "yob rau" kom raug los ua tus qauv huv si yam tsis muaj skidding lossis ob npaug - taug qab. Nws feem ntau yog qhov kawg ntawm txoj kab uas hla loj ntawm lub knurl rho tawm qhov xav tau qhov tob ntawm tus qauv. Cov khoom lag luam catalogs thiab machinist phau ntawv muab cov qauv tshwj xeeb raws li knurl suab.
Q4: Dab tsi yog "ob npaug- taug qab" hauv knurling thiab yuav tiv thaiv li cas ntawm CNC?
A4:Ob npaug - taug qab tshwm sim thaum lub cuab yeej knurling tsis synchronize nrog lub workpiece rotation, ua rau ib tug thib ob, offset txheej txheem. Kev tiv thaiv ntawm CNC suav nrog kev ua kom lub siab ua ntej -knurling txoj kab uas hla yog qhov tseeb, siv cov txheej txheem nruj, pib nrog lub siab pib txaus los kos cov hniav tam sim ntawd, thiab siv tus nqi noj zoo sib xws.
Q5: Cov qauv knurling sib txawv (pob zeb diamond, ncaj, hla) tuaj yeem ua tiav ntawm tib lub teeb CNC?
A5:Yog, tab sis nws yuav tsum tau hloov cov cuab yeej knurling. CNC tshuab dhos lossis zeb tuaj yeem khaws ntau yam cuab yeej. Tus qauv yog txiav txim los ntawm lub log mounted ntawm lub knurling cuab tam. Hloov ntawm cov qauv yog yooj yim npaum li lub cuab yeej hloov cov lus txib hauv qhov kev pab cuam, muab cov cuab yeej raug thauj khoom.
Q6: Dab tsi yog qhov kev coj ua zoo tshaj plaws rau kev tuav lub pob me me thaum CNC machining thiab knurling?
A6:Rau kev tig, ib tug collet chuck muab zoo heev concentricity thiab tuav rau me me diameters. Rau kev ua haujlwm thib ob, lub puab tsaig muag muag rau lub pob qhov rooj tiv thaiv kev sib tsoo thiab xyuas kom meej qhov chaw. Rau knurling, kev txhawb nqa yuav tsum nyob ze rau kev ua haujlwm li sai tau los tiv thaiv radial rog.
Q7: Yuav ua li cas cov xov sib koom ua ke rau hauv lub pob qhov rooj hauv ib qho kev teeb tsa CNC?
A9:Ntawm lub tshuab dhos CNC, cov kab ke feem ntau yog: 1) Tshuab OD rau threading, 2) Txiav cov xov siv cov cuab yeej threading lossis kais, 3) Tshuab qhov seem OD nta, 4) Ua haujlwm knurling ua ib qho ntawm cov kauj ruam kawg kom tsis txhob cuam tshuam tus qauv nrog chucking rog. Tag nrho cov haujlwm yog nyob rau hauv ib qho kev pab cuam CNC.
CNC machining muab ib txoj kev tswj tau zoo thiab rov ua dua los ua cov pob qhov rooj. Los ntawm kev sib koom ua haujlwm knurling ncaj qha rau hauv CNC ntu-txawm yog los ntawm kev tsim lossis machining- cov neeg tsim khoom tau ua tiav qhov zoo sib xws, txo qis tuav, thiab ua kom ntau lawm. Kev xaiv ntawm daim ntawv knurling thiab machined knurling hinges ntawm cov khoom, qauv complexity, ntim, thiab zoo yuav tsum tau. Cov txheej txheem txheej txheem ntxaws, cov cuab yeej raug tsis raug, thiab nruj hauv - kev tswj cov txheej txheem yog cov ncej ntawm kev tsim khoom siab - zoo knurled knobs zoo ntawm CNC khoom.