Sib nqus chucks rau CNC machining thiab sib tsoo muab ceev ua hauj lwm yam tsis muaj tshuab clamps, txo lub sij hawm teem los ntawm 50-80% piv rau vise los yog fixture daim hlau. Txawm li cas los xij, kev xaiv chuck tsis raug ua rau muaj kev txav mus los thaum lub sijhawm txiav hnyav, sib nqus distortion ntawm nyias workpieces, thiab coolant puas rau cov khoom sab hauv. Electro-permanent magnetic chucks muab kev nyab xeeb zoo dua li cov khoom siv hluav taws xob tas mus li los yog cov khoom siv hluav taws xob: lawv tuav lub zog thaum lub zog poob, thiab lawv qhov kev hloov pauv hauv / tawm yuav tsum tsis muaj tam sim no txuas ntxiv. Cov nram qab no buyer phau ntawv qhia piv zoo ncej vs. standard ncej pitch rau txawv workpiece thicknesses, muab tuav quab yuam cov ntaub ntawv rau cov khoom siv, thiab piav qhia txog waterproofing qauv rau coolant ib puag ncig.
Txoj Kev Nyab Xeeb Kev Nyab Xeeb ntawm Electro-Permanent Magnetic Technology
Electro- cov chucks tas mus li siv kev sib xyaw ua ke ntawm siab -coercivity (NdFeB) thiab qis-coercivity (AlNiCo) hlau nplaum nyob rau hauv chuck lub cev. Lub sijhawm hluav taws xob mem tes (0.5-}2 vib nas this) ua kom cov sib nqus sib nqus, tig lub chuck rau lossis tawm. Ib zaug ntxiv, chuck tuav tsis muaj zog - tsis muaj hluav taws xob tsim hluav taws xob, tsis muaj kev pheej hmoo ntawm kev tso tawm thaum lub zog tsis ua haujlwm. Qhov no yog qhov tseem ceeb rau kev ua haujlwm tsis tu ncua thiab kev ua haujlwm hnyav milling.
Sib nqus chucks mus tas li (phau ntawv qhib / tawm ntawm lub zog) yog tus nqi qis dua tab sis yuav tsum muaj lub cev nkag mus rau qhov hloov pauv, txwv tsis pub siv automation. Electromagnetic chucks (nruam DC tam sim no) ua kom muaj cua sov (feem ntau yog 20-40℃kub nce), uas tuaj yeem cuam tshuam qhov nyias nyias thiab xav tau cov tshuab cua txias rau kev khiav haujlwm ntev. Rau CNC machining chaw nrog cov cuab yeej hloov pauv thiab cov tshuab pallet, electro-permanent chucks yog tus qauv kev lag luam.
Fine Ncej vs. Standard Ncej Pitch rau txawv Workpiece Thicknesses
Ncej suab hais txog qhov chaw nruab nrab - mus rau - nruab nrab ntawm qhov sib txawv ntawm sab qaum teb thiab sab qab teb sib nqus ncej ntawm chuck nto. Standard ncej suab: 12-18mm. Fine ncej pitch: 3-6mm.
For thick workpieces (>20mm thickness), txheem ncej ncej muab siab dua tag nrho tuav quab yuam vim magnetic flux nkag mus tob rau hauv cov khoom. Piv txwv li, 150x300mm chuck nrog tus qauv suab tuav 200kg ntawm quab yuam ntawm 30mm tuab me me steel phaj.
Rau nyias workpieces (<10mm thickness), standard pitch produces uneven holding and may magnetically distort the part (bowing from induced stress). Fine pole pitch concentrates flux near the surface, holding thin sheets (2-5mm) without distortion. For 3mm stainless steel sheet, fine pole chuck achieves 15-20 N/cm² holding pressure compared to <5 N/cm² for standard pitch.
Cov ntaub ntawv sib piv:
| Workpiece Thickness | Pom zoo Pole Pitch | Lub zog tuav (N / cm², me ntsis steel) | Tej kev siv |
|---|---|---|---|
| <3mm | 3mm (zoo ntxiv) | 8-12 | Foils, shims, me me stampings |
| 3-8 hli | 6mm (zoo) | 15-25 | Sheet hlau, npog, brackets |
| 8-20 hli | 12mm (tus qauv) | 30-45 | Blocks, tuag, cuab yeej steel |
| >20 hli | 18mm (hli) | 50-70 | Cov pwm loj, cov phaj hnyav |
Waterproofing Standards rau Coolant ib puag ncig
CNC machining suav nrog cov dej txias txias, nti ntxuav, thiab siab - cua txias cua txias (txog 70 bar). Sib nqus chucks yuav tsum muaj IP67 lossis IP68 ingress tiv thaiv. Cov yam ntxwv tseem ceeb:
epoxy encapsulation ntawm cov hlau nplaum sab hauv thiab cov coils.
O-ntiv nplhaib kaw lub thawv nrog IP67-rated cable qog.
Stainless hlau sab saum toj phaj (316L rau corrosive coolants).
Tshem cov channel kom tiv thaiv kom tsis txhob muaj dej txias ntawm chuck nto.
Cov qauv ntsuas: IP67 tau ntawv pov thawj (immersion hauv 1m dej rau 30 feeb). Rau kev sib tsoo daim ntaub ntawv nrog dej-raws li coolants, kuj yuav tsum tau ua hauj lwm rau alkaline pH 9-10. Peb cov electro-permanent chucks undergo 200-teev ntsev tsuag (ASTM B117) ntawm txhua qhov chaw sab nraud.
Cov qauv sib nqus chucks los ntawm qis dua -tier cov neeg muag khoom feem ntau siv cov khoom siv silicone sealant, ua tsis tiav tom qab 6-12 lub hlis ntawm cov dej txias txhua hnub. Peb warranty: 2 xyoos ntawm kev sib khi kev ntseeg siab, 5 xyoos ntawm kev sib nqus hluav taws xob (tsis muaj demagnetization).
Rau kev sib tsoo hnyav nrog ferrous swarf tsub zuj zuj, peb pom zoo kom sib nqus chuck nrog tsis siv neeg demagnetization voj voog (alternating polarity) kom tshem tawm cov hlau nplaum seem ntawm lub workpiece - tiv thaiv cov ntaub ntawv thib ob adhesion thaum ua haujlwm tom ntej.
Txhawm rau xaiv qhov tseeb chuck rau koj lub tshuab CNC milling lossis nto grinder - suav nrog lub rooj loj (txog 1200x600mm), cov khoom siv ua haujlwm (steel, stainless, cam khwb cia hlau), thiab hom coolant - thov mus saib peb cov khoom sib nqus Chuck nplooj ntawv ntawm peb lub vev xaib.
Rau kev cai chuck designs (piv txwv li, ncej txuas ntxiv rau qhov siab, ntau-zone switching for pallet systems), hu rau peb pab neeg ua haujlwm engineering.
Cov lus nug nquag
Q: Cov hlau nplaum puas tuaj yeem tuav cov khoom tsis yog -ferrous xws li txhuas lossis yas?
A: Tsis yog. Sib nqus chucks tsuas yog tuav cov ntaub ntawv ferromagnetic (hlau, steel, npib tsib xee, cobalt). Rau txhuas, siv lub tshuab nqus tsev chucks lossis mechanical clamps. Peb muab hybrid electrostatic-magnetic chucks rau cov khoom sib xyaw.
Q: Yuav ua li cas yog tias kuv tsoo lub cuab yeej rau hauv electro-magnetic chuck mus tas li?
A: Lub phaj sab saum toj yuav dent, tab sis sab hauv magnetic circuit tseem ua haujlwm. Deg flatness kam rau ua yog feem ntau ± 0.02mm hla lub chuck; Tom qab kev sib tsoo, peb pom zoo kom regrinding lub phaj saum toj kawg nkaus (max 0.5 hli tshem tawm) kom rov qab flatness. Peb muab cov lus qhia regrinding.
Q: Kuv yuav ua li cas kom paub meej tias tuav lub zog ua ntej pib ua haujlwm hnyav?
A: Peb muab cov khoom sib nqus rub- tawm lub zog ntsuas nrog txhua chuck. Tom qab workpieces positioned, ntsuas lub zog ntawm lub ces kaum ntawm ib feem. Yuav tsum tau yam tsawg kawg nkaus: 2x lub xam txiav quab yuam. Rau kev nyab xeeb, 3-5x margin rau kev cuam tshuam kev txiav.
