I. Txheej txheem cej luam ntawm machining tshuab
1.1 Cov hauv paus ntsiab lus ntawm kev txiav
Txiav yog txheej txheem molding uas paub txog kev tshem tawm cov khoom los ntawm kev sib txheeb ntawm cov cuab yeej thiab cov khoom ua haujlwm (txiav cov lus tsa suab), uas yog cov khoom siv txo cov txheej txheem hauv kev siv tshuab engineering. Yog li ntawd, kom paub txog kev txiav zoo yuav tsum tau ua kom tau raws li peb lub ntsiab lus nyob rau tib lub sijhawm, ib qho yog cov khoom ua haujlwm thiab cov cuab yeej los tsim cov lus tsa suab (lub ntsiab lus + pub mov), qhov thib ob yog cov khoom siv muaj zog, hnav tsis kam thiab lwm yam tshwj xeeb txiav, thiab qhov thib peb yog cov cuab yeej tsim nyog, xws li lub kaum sab xis, sab nraub qaum, lub kaum sab xis camber, thiab lwm yam.
1.2 Kev sib tw hauv kev ua haujlwm niaj hnub
Nyob rau lub sijhawm tam sim no thiab yav tom ntej, kev siv thev naus laus zis tau ua tiav mus rau qhov kev txawj ntse, automation, efficiency thiab kev tiv thaiv ib puag ncig.
2. cov txheej txheem txiav cov txheej txheem hauv kev nthuav dav
2.1 rov
2.1.1 Txheej Txheem Txheej Txheem
Nws yog ib qho yooj yim los xyuas kom meej qhov tseeb ntawm txhua lub tshuab ua haujlwm ntawm qhov chaw ua haujlwm (qhov chaw ua haujlwm siab), muaj cov khoom lag luam siab thiab cov nqi tsim khoom qis, thiab tsim nyog rau ntau - cov khoom siv machining.
2.1.2 Precision tswj
Rough tig: IT8-IT7 (machining raug), Ra6.3-1.6μm (roughness)
Fine tig: IT6-IT5 (machining raug), Ra0.4-0.1μm (roughness)
2.1.3 Kev faib cov cuab yeej cuab tam (kab rov tav / ntsug / CNC tshuab dhos)
Txhua hom shafts, disks, cov khoom siv feem ntau yog siv los hloov mus rau ntau hom kab rov tav lathes lossis CNC lathes rau txheej txheem.
Loj txoj kab uas hla thiab luv luv qhov chaw, ntau ntsug lathes rau txheej txheem.
Batch ntau lawm cov duab, nrog rau hauv lub qhov thiab threads ntawm me me thiab nruab nrab- shafts loj, pawg ntawm qhov chaw, yuav tsum tau xaiv turret tshuab dhos rau ua.
2.2 Milling
2.2.1 Kev ua tau zoo ntawm ntau- cov cuab yeej hniav
Nws cov khoom tsim tau siab, vim tias lub tshuab txiav milling yog ntau- cov cuab yeej hniav, ntau tshaj ib cov hniav ua hauj lwm tib lub sij hawm, txiav ceev ceev, thiab cov hniav muaj cua sov dissipation tej yam kev mob, yog li lub cuab tam lub neej ntev.
2.2.2 Precision tswj
General machining raug: IT9-IT7, nto roughness: Ra3.2-1.6μm.
2.2.3 Kev xaiv cov khoom siv rau ntau qhov sib txawv
Hauv ib thooj, me me batch ntau lawm, ua me me thiab nruab nrab- workpieces loj yog feem ntau siv lifting rooj milling tshuab (kab rov tav thiab ntsug ob hom). Gantry milling tshuab tuaj yeem siv rau kev ua haujlwm loj - qhov loj me.
2.3 Drilling txheej txheem
2.3.1 Qhov txheej txheem txheej txheem (drilling → reaming → reaming)
Drilling yog qhov yooj yim tshaj plaws ntawm lub qhov machining txoj kev thiab feem ntau yog nqa tawm ntawm cov tshuab drilling thiab tshuab dhos, tab sis kuj yog cov tshuab tho txawv thiab tshuab milling. If there is a need to increase the hole diameter and accuracy, then reaming operation will be carried out on the existing drilled holes, and further if finishing is required, then a trace metal layer will be removed from the wall of the hole on the basis of reaming or after semi-finishing boring in order to increase the dimensional accuracy of the hole and to reduce the surface roughness value, which is called reaming.
2.3.2 Txheej txheem specification
Hole diameter grading: Φ≤30mm in one go, Φ>30mm reaming hauv cov kauj ruam
Kev txhim kho qhov tseeb: drilling → reaming → reaming
2.4 Khawv koob
2.4.1 Cov Kev Kawm Tshwj Xeeb rau Cov Qhov Loj Loj
Nrog rau cov cuab yeej tho txawv tuaj yeem ua tiav nyob rau hauv ib qho ntawm ntau qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv, tshwj xeeb tshaj yog qhov loj txoj kab uas hla, yuav luag tib txoj kev xaiv los ntawm
2.4.2 Rough Boring/Semi-Tiav Boring/Finish Boring Peb-Theem Machining
Qhov tseeb machining ntawm ntxhib tho txawv yog IT12-IT11, thiab qhov roughness yog Ra25-12.5μm. Qhov tseeb machining ntawm semi-nplua boring yog IT10-IT9, thiab nto roughness yog Ra6.3-3.2μm. Lub machining qhov tseeb ntawm kev tho txawv yog IT8-IT7, thiab qhov roughness ntawm qhov chaw yog Ra1.6-0.8μm.
2.4.3 Siv tau Scenarios
Kev tho txawv tuaj yeem ntxhib, ib nrab- ua kom tiav thiab ua tiav los ntawm qhov thiab qhov muag tsis pom ntawm qhov chaw ua haujlwm, yog li nws yog qhov tsim nyog rau kev ua cov qhov thiab lub qhov ntawm cov khoom ua haujlwm nrog cov txheej txheem nyuaj thiab qhov loj xws li lub thawv thiab racks.
2.5 Cov txheej txheem npaj
2.5.1 Txheej txheem yam ntxwv
Zoo versatility, tsawg productivity, tsawg machining raug
2.5.2 Daim ntawv thov scenes ntawm bullhead planer thiab gantry planer
Gantry planer feem ntau yog siv los ua cov haujlwm loj, lossis ua haujlwm ntau qhov nruab nrab thiab me me tib lub sijhawm. Inserting tshuab, tseem hu ua ntsug bullhead planer, feem ntau yog siv los ua cov txheej txheem sab hauv ntawm cov khoom ua haujlwm, xws li keyway, spline zawj, thiab lwm yam. Nws kuj tseem siv tau los ua cov txheej txheem polygonal qhov, xws li plaub-square qhov, rau -square qhov, thiab lwm yam.
3. Niaj hnub nimno machining center technology
3.1 Dab tsi yog machining chaw machining
Machining center machining yog ib txoj kev txiav siv lub tshuab hu ua machining center. Nws cia li tswj txoj hauj lwm ntawm lub cuab yeej raws li qhov kev pab cuam input thiab cov duab ntawm 3D daim duab, thiab kuj cia li hloov lub cuab tam kom complex cov duab yuav machined sai heev yam tsis tas yuav hloov cov cuab yeej los yog cov cuab yeej rau txawv machining.Nws muaj qhov zoo ntawm kev txo cov kev siv ntawm cov cuab yeej thiab muaj peev xwm ua tiav cov duab uas nyuaj rau yav dhau los.
3.2 Lub hauv paus ntsiab lus ntawm machining chaw ua haujlwm
Lub chaw machining tuaj yeem suav tau tias yog hom txheej txheem milling uas txiav cov khoom siv los ua lub hom phiaj los ntawm kev tig cov cuab yeej txiav ntawm kev kub ceev. Nws cov yam ntxwv tseem ceeb yog kev siv tshuab tsis siv neeg raws li kev teeb tsa machining (NC program) thiab tsis siv neeg hloov ntau yam cuab yeej.
3.3 Hom machining chaw
Classification rooj ntawm machining chaw
| Hom | Cov yam ntxwv zoo | Daim ntawv thov | Kev txwv |
| Vertical Machining Center | Cov cuab yeej ntsia ntsug, 3-axis txuas (XYZ) | Ntau- ntau yam me me-batch ntau lawm, precision pwm machining | Kev pheej hmoo siab ntawm nti tsub zuj zuj, txwv machining qhov tob |
| Kab rov tav Machining Center | Kab rov tav spindle layout, B-axis rotary rooj | Loj -batch box- hom qhov chaw, automated ntau lawm kab | Cov cuab yeej loj hneev taw, lub sijhawm - siv kev debugging |
| Gantry Machining Center | Ob chav kem gantry qauv, loj span beam | Aerospace structural Cheebtsam, nkoj loj Cheebtsam | Cov cuab yeej siv kho mob siab, kev siv hluav taws xob siab |
| 5-axis Machining Center | ABC-axis linkage, compound angle machining | Complex nto machining, impeller / turbine Cheebtsam | Kev ua haujlwm siab nyuaj, cov cuab yeej siv tau nce 3-5 zaug |
3.4 Dab tsi peb yuav tsum tau them sai sai rau thaum machining nrog machining chaw
Thaum siv lub tshuab machining chaw, cov txheej txheem machining yuav tsum tau txiav txim siab ntawm theem tsim, thiab kev npaj kom zoo tuaj yeem ua kom zoo, sijhawm thiab nqi. Piv txwv li, txo qhov tob ntawm kev txiav, machining ntawm ob sab, thiab lwm yam. Thaum khawb cov duab sib sib zog nqus, yuav tsum tau them nyiaj rau cov cuab yeej ruaj khov thiab raug, nrog rau cov ntsiab lus xws li kev sib tw hauv qab ntawm lub qhov. Nyob rau hauv luv luv, thaum machining nrog ib tug machining chaw, cov txheej txheem machining thiab ib theem zuj zus yuav tsum tau txiav txim siab los ntawm tus tsim theem.
Thaum kawg, peb yuav tsim nyog yog tias tsab xov xwm no muaj txiaj ntsig zoo rau koj. Saib los ntawm peb cov keeb kwm kev lag luam kev paub thiabCNC machiningcov khoom hauv lub vev xaib yog tias koj xav tau kev tshawb nrhiav ntxiv ntawm machining cov kws tshaj lij lossis cov khoom lag luam.