Profile linear guides, tsim los yog yuav nrog koj tus kheej txhais tes, yog cov menyuam lossis pob cov kabmob siab-precision dov bearings uas ua haujlwm hauv kev txav. Lawv muaj peev xwm pom tau tias muaj zog ua rau txhua qhov kev taw qhia, tsis suav nrog kev taw qhia ntawm kev txav mus los.
Type of linear guides
Cov lus qhia tawm muaj ob hom:
- nrog pob ncig;
- nrog cov menyuam ncig.
Pob qhia ua ob-, plaub- thiab rau-kab. Lawv yog cov me me, haum rau siv nyob rau hauv tsawg qhov chaw installation. Cov kab ntawv qhia tawm yog tsim nrog cov tsav sib txawv. Ntawm lawv, ib txoj siv txhuam hniav lossis pob ntsia hlau tsav (pob ntsia hlau tsav) ntau dua.
Roller yog tsim nyob rau hauv daim ntawv ntawm cylindrical cov lus qhia thiab cov lus qhia nrog lub tawb tiaj tus.
Txhua cov lus qhia yuav tsum muaj cov khoom tseem ceeb:
- kev sib txhuam qis;
- ua haujlwm siab;
- smooth linear txav;
- muaj peev xwm tswj tau cov kev ua haujlwm tsis zoo.
Linear moduleskev txav
Tsis ntev los no, vim kev txhim kho ntawm automation, kev siv cov kab khiav tawm, uas muaj xws li:
- dev bearing profile;
- precise guide system;
- ruaj khov mechanism;
- servo lub cev muaj zog nrog kev tswj tau yooj yim.
Nyob rau hauv qhov kev tivthaiv no, cov lus qhia nrog ob lub pob bearings thiab cov menyuam bearings pom lawv daim ntawv thov. Kev tsav tsheb ua haujlwm yog los ntawm lub cev muaj zog, txoj siv txhuam hniav lossis pob ntsia hlau.
Pom lawv daim ntawv thov thiab cov rooj sib tw, siv thaum nws tsim nyog txav cov loj loj raws cov axes. Vim lawv qhov loj me, lawv pom lub sijhawm loj thauj khoom. Linear tables siv:
- tes tsho linear;
- npas ncig qhia.
Kev ntsuas qhov tseeb
Yog tias koj ua koj tus kheej cov lus qhia, koj yuav tsum tswj qhov raug. Qhov no yog ua tau yooj yim heev. Ib lub tsheb ciav hlau tau muab tso rau ntawm qhov chaw nruab nrab. Hauv qhov no, qhov tseeb yog qhov kev qhia ntawm qhov nruab nrab tus nqi ntawm qhov ntsuas qhov ntsuas qhov ntsuas hauv nruab nrab ntawm qhov ntsuas qhov chaw. Tsis tas li ntawd, qhov tseeb ntawm cov ntawv qhia linear yog txiav txim siab los ntawm kev ntsuas qhov dav thiab qhov ntev. Qhov no ntsuas qhov ntev ntev rau txhua qhov thaiv uas tau nruab rau ntawm txoj kev tsheb ciav hlau.
Rigidity thiab preload
Thaum lub sijhawm ua haujlwm, cov ntawv qhia kev tsheb ciav hlau raug raug, vim yog siv cov khoom thauj,cuam tshuam cov ntaub ntawv elastic. Deformation nyeem nyob ntawm seb hom dov cov ntsiab lus. Tab sis qee qhov nws tau me me thaum lub load nce.
Preload yog siv los ua kom lub cev muaj zog. Nws txo qis lub neej ntawm cov lus qhia linear los ntawm kev ua rau muaj kev ntxhov siab nyob hauv lawv, tab sis tseem muaj peev xwm nqus tau deforming loads thaum cov kab ntawv qhia ua haujlwm nyob rau hauv kev vibration hnyav lossis poob siab. Vim lub fact tias preload ua rau elastic deformation ntawm bearings, lawv yuav raug rau qhov tsis zoo ntawm mounting yuam kev. Qhov no qhia tias yuav tsum tau them nyiaj ntau rau qhov raug ntawm qhov chaw mounting.
Type of preload:
- ib txwm - siv thaum muaj kev vibrations me ntsis;
- teeb - siv thaum muaj lub teeb vibrations thiab lub teeb torque;
- nruab nrab - siv rau kev poob siab thiab muaj zog vibrations, nrog rau tipping loads.
Txoj kev tsheb ciav hlau
Nws yog ib qho tseem ceeb kom paub tias cov kab hluav taws xob kab hluav taws xob yuav raug quab yuam thiab lub sijhawm. Rau lawv, cov txiaj ntsig yuav tsum tau txiav txim siab: lub sijhawm tso cai zoo li qub thiab lub peev xwm thauj khoom, uas suav nrog cov qauv. Thaum xam cov nominal lub neej ntawm pob thiab cov menyuam qhia, koj yuav tsum siv cov qauv sib txawv.
Nrog lub sijhawm ntev ntawm kev mob stroke thiab zaus ntawm kev txav mus los, cov peev txheej ntawm kev ua haujlwm tau qhia raws li lub sijhawm. Nrog compact installation qhov ntev, profile rail qhiamuaj peev xwm ua haujlwm siab. Nruab nyob rau hauv ntau hom tshuab cuab yeej los yog lwm yam khoom siv, lawv tau mounted nyob rau hauv ob txoj kev sib txawv: nyob rau hauv daim ntawv ntawm ib tug kab rov tav rail thiab nyob rau hauv lub sab mounting txoj kev.
Vim lub rooj sib txoos yog ua los ntawm ob qho tib si sib luag, qhov chaw ntawm thawj txoj kev tsheb ciav hlau yog nyob rau sab hauv paus, thiab lwm qhov nyob rau sab adjustable.
Thaum ua hauj lwm nrog hnyav shock loads thiab vibrations, installation ntawm ntxiv sab qhov chaw - sab siab phaj, teem nruj screws, conical wedge - pab tshem tawm lawv.
Qhov kev teeb tsa ntawm qhov clamping ntxiv thaum ua haujlwm nrog cov khoom me me thiab qis qis tsis tsim nyog.
Kev qhia tawm rau CNC tshuab
Dab tsi yog linear motion system? Nws yog kev sib xyaw ua ke ntawm kev sib kis thiab kev qhia tawm.
Linear qhia rau CNC yog linear bearings, coj bushings, shafts. Cov coj lawv tus kheej yuav tsum daws peb txoj haujlwm tseem ceeb:
- ua lub pob txha ntawm lub tshuab;
- nrog kev sib txhuam me me, nrog rau qhov yuav tsum tau muaj tseeb raws li kev qhia, kom ntseeg tau tias kev txav ntawm lub tshuab qhov chaw;
- lees cov haujlwm uas tshwm sim los ntawm kev ua haujlwm.
Cov lus qhia kab qhia tau muab faib nyob ntawm txoj kev txuas rau lub tshuab. Cov no yog cov ntsia hlau uas muab kev txhawb nqa tag nrho - txoj kev fastening rau lub txaj raws tag nrho qhov ntev ntawm cov ntsia hlau, thiab kev txhawb nqa ib nrab - qhov kawg fastening method.
Cov lus qhianrog kev txhawb nqa tag nrho muaj lub peev xwm thauj khoom ntau dua, sib piv rau cov lus qhia nrog kev txhawb nqa ib nrab. Qee lub sij hawm muaj cov kev xaiv thaum cov kab ntawv qhia tau teeb tsa raws cov axes - ob qho tib si nrog kev kho tag nrho thiab ib nrab.
Cov neeg sawv cev ntawm pab pawg no yog cov lus qhia cylindrical linear. Lawv ua tiav qhov muaj peev xwm ntawm kev siv ntau hom kev qhia cylindrical:
- polished qhia shafts - yog feem ntau (muaj siab, yooj yim rau nruab);
- splined shafts - siab hnav tsis kam thiab rigidity, muaj peev xwm txais torsional quab yuam los ntawm lub tes tsho. Siv rau qhov kawg mounting rails;
- shafts ntawm kev txhawb nqa yog cylindrical rails. Lawv siv los ua ib qho txuas ncaj qha rau lub tshuab.
Precision mounting nto
Cov lus qhia kev tsheb ciav hlau tau teeb tsa los ntawm kev teeb tsa ntawm lub hauv paus tshuab. Txoj kev fastening muaj nyob rau hauv tsim ib lub xub pwg nyom ntawm lub rooj zaum thiab muab lub hauv paus nto los yog hauv qab bracket rau nws. Kev tsis ncaj ncees tuaj yeem zam tau yog tias muaj qhov zawj ntawm lub ces kaum ntawm cov hlaws nws tus kheej.
Nws muaj kev sib raug zoo ntawm kev tsheb ciav hlau qhov tseeb thiab qhov tseeb ntawm kev mus ncig. Qhov tseeb ntawm txhua yam khoom siv kuj tseem nyob ntawm qhov no. Nyob rau hauv cov ntaub ntawv no, qhov tseeb ntawm lub machined mounting nto yuav tsum sib haum mus rau qhov tseeb txav txav. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias nws yuav tsum tau coj mus rau hauv tus account lub flatness ntawm lub block, thaum tsis suav nrog deformation.tsheb.
Basic nto
Txhawm rau kom raug thiab yooj yim installation, nws yog ib qho tsim nyog los tsim cov ntaub ntawv siv uas yuav tsum nyob ntawm lub tsheb thauj mus los thiab ntawm txoj kev tsheb ciav hlau ntawm tib sab.
Hauv qhov no, daim ntawv lo yuav tsum nyob rau sab nraud. Yog tias qhov tseeb txaus tsis tau lees paub vim qhov peculiarities ntawm cov txheej txheem mounting, tom qab ntawd cov txheej txheem ntawm lub hauv paus tau ua tiav ntawm ob sab thiab.
Kev tiv thaiv corrosion thiab lubrication
Txhawm rau tiv thaiv cov lus qhia los ntawm corrosion, lawv yog ua los ntawm stainless hlau. Muaj ib qho kev xaiv nrog cov txheej txheem tiv thaiv tshwj xeeb. Nws daim ntawv thov yog ua tiav thaum muaj kev tiv thaiv siab tiv thaiv corrosion.
Hoobkas tiav cov swb yog lubricated nrog lithium xab npum raws roj. Tom qab ntawd, lawv tuaj yeem siv rau lawv lub hom phiaj. Cov kev ua haujlwm sib txawv yuav xav tau lub sijhawm rov qab kom raug ntawm tib hom roj nplua nyeem.
