MuCNC manhamba ekudzora midziyo, kunyangwe zvimiro zvegranite zvichipa hwaro hwepamusoro-chaizvo kugadzirisa, zvipingamupinyi zvayo zvemukati zvinogona kuve neakawanda-dimensional kukanganisa pakugadzirisa iko kurongeka, izvo zvinonyatso kuratidzwa sezvinotevera:
1. Kuremara kwepamusoro mukugadzirisa kunokonzerwa nebrittleness yezvinhu
Iyo brittle yemhando yegranite (yakakwirira yekumanikidza simba asi yakaderera flexural simba, kazhinji iyo flexural simba ingori 1/10 kusvika 1/20 yesimba rekumanikidza) inoita kuti iite kutarisana nezvinetso senge kumucheto kuputika uye pamusoro microcracks panguva yekugadzirisa.
Kukanganisika kweMicroscopic kunokanganisa kufambiswa kwechokwadi: Paunenge uchikuya-yepamusoro-chaiyo kana kugaya, diki diki pazvimbo zvekushandisa zvinogona kugadzira nzvimbo dzisina kujairika, zvichikonzera kukanganisa kwekutwasuka kwezvinhu zvakakosha senge njanji yekutungamira uye matafura ekushanda kuti awedzere (semuenzaniso, kufuratira kunodzikira kubva pane yakakodzera ± 1μm/m kusvika ± 3 ~ 5μm/m). Aya madiki akaremara anozoendeswa zvakananga kune zvakagadziriswa zvikamu, kunyanya mukugadzirisa zviitiko senge chaiyo optical components uye semiconductor wafer carriers, izvo zvinogona kutungamira mukuwedzera kweiyo roughness ye workpiece (Ra kukosha inowedzera kubva 0.1μm kusvika pamusoro 0.5μm), inokanganisa optical performance kana mashandiro emuchina.
Kamwe-kamwe kuputsika kwengozi mukugadzirisa kwakasimba: Muzviitiko zvekucheka-kumhanya-mhanya (sekumhanya kwespindle> 15,000 r/min) kana chiyero chekudya> 20m/min, zvikamu zvegranite zvinogona kusangana nekutsemuka kwenzvimbo nekuda kwesimba rekukanganisa. Semuyenzaniso, kana gwara renjanji richichinja mafambiro nekukasira, kutsemuka kwemupendero kunogona kuita kuti nzira yekufamba ibve kubva munzira yedzidziso, zvichikonzera kudonha kwakangoerekana kwaitika mukurongeka (iyo kukanganisa kwekumisikidza kunowedzera kubva ± 2μm kusvika kunopfuura ± 10μm), uye kunyange kutungamirira kune kudhumhana kwechishandiso uye kukwenya.
Chechipiri, dynamic accuracy kurasikirwa kunokonzerwa nekupokana pakati pehuremu nekuoma
Iyo yepamusoro-density pfuma yegranite (ine density inosvika 2.6 kusvika 3.0g/cm³) inogona kudzvanya vibration, asi inounzawo matambudziko anotevera:
Inertial simba rinokonzeresa servo response lag: Iyo inertial simba inogadzirwa nemibhedha inorema yegranite (senge mibhedha mikuru ye gantry inogona kurema makumi ematani) panguva yekumhanyisa uye kudzikisira inomanikidza iyo servo mota kuburitsa yakakura torque, zvichikonzera kuwedzera kwechinzvimbo loop yekutevera kukanganisa. Semuyenzaniso, mumasisitimu ekumhanya-mhanya anotyairwa nemamota ane mutsara, pakuwedzera kwegumi muzana pahuremu, kurongeka kwenzvimbo kunogona kudzikira ne5% kusvika 8%. Kunyanya mune nanoscale yekugadzirisa mamiriro, iyi lag inogona kutungamirira kune contour kugadzirisa zvikanganiso (senge kukanganisa kutenderera kuri kuwedzera kubva pa50nm kusvika 200nm panguva yekududzirwa kwedenderedzwa).
Kusakwana kusimba kunokonzeresa kudzika-frequency vibration: Kunyangwe granite iine yakakwira yakadzika damping, yayo elastic modulus (inenge 60 kusvika 120GPa) yakadzikira pane iyo yesimbi yakakandwa. Kana yaiswa pasi pemitoro inochinjika (sekushanduka kwesimba rekucheka panguva yakawanda-axis yekubatanidza kugadzirisa), micro-deformation kuunganidza inogona kuitika. Semuyenzaniso, muchikamu chemusoro chinozunguzika chepakati peakisi-axis machining, kushomeka kushoma kwechigadziko chegranite kunogona kuita kuti kurongeka kwemakona kweakisi yekutenderera kudonha (senge kukanganisa kweindex kuwedzera kubva ± 5 "kusvika ± 15"), zvichikanganisa kurongeka kwemachining enzvimbo dzakakombama dzakakombama.
Iii. Kuganhurirwa kweThermal Stability uye Environmental Sensitivity
Kunyangwe iyo coefficient yekuwedzera kwekupisa kwegranite (inenge 5 kusvika 9 × 10⁻⁶/℃) yakaderera pane iyo yesimbi yakakandwa, inogona kuramba ichikonzera zvikanganiso mukunyatso kugadzirisa:
Tembiricha gradients inokonzeresa deformation: Kana iyo michina ikashanda ichienderera kwenguva yakareba, zvitubu zvekupisa senge main shaft mota uye gwara renjanji lubrication system zvinogona kukonzera tembiricha gradients muzvikamu zvegranite. Semuyenzaniso, kana musiyano wekushisa pakati pepamusoro nepasi penzvimbo yetabhenakeri iri 2 ℃, inogona kukonzera pakati-convex kana yepakati-concave deformation (deflection inogona kusvika 10 kusvika 20μm), zvichikonzera kutadza kwe flatness ye workpiece clamping uye kukanganisa kuenzanirana kwekugaya kana kugaya zvidimbu zvekupfuura ± chidimbu cheplate μm. ±20μm).
Humidity yezvakatipoteredza inokonzera kuwedzera kuduku: Kunyange zvazvo chiyero chemvura chegranite (0.1% kusvika 0.5%) chakaderera, kana chikashandiswa kwenguva yakareba munzvimbo ine hunyoro hwepamusoro, chiyero chekunyura kwemvura chinogona kukonzera kuwedzera kwelatisi, izvo zvinozoita kuti kuchinja kwekugadzirisa kwegwara renjanji. Semuyenzaniso, kana hunyoro hukakwira kubva pa40% RH kusvika pa70% RH, mutsara wenjanji yegiraniti inotungamira njanji inogona kuwedzera ne0.005 kusvika 0.01mm/m, zvichikonzera kudzikira kwekutsetseka kwekufamba kwenjanji inotsvedza uye kuitika kwe "kukambaira" kunokanganisa hunyanzvi hwekudya.
Iv. Cumulative Mhedzisiro Yekugadzirisa uye Kukanganisa kweGungano
Iko kuomerwa kwekugadzirisa kwegranite kwakakwira (inoda maturusi edhaimani akakosha, uye kugona kwekugadzirisa kunongova 1/3 kusvika 1/2 yezvigadzirwa zvesimbi), izvo zvinogona kutungamira mukurasikirwa kwechokwadi mukuita kwegungano:
Kugadzirisa kukanganisa kutapurirana kwenzvimbo yekubatanidza: Kana paine kugadzirisa kutsauka (sekudzika> 5μm, gomba spacing kukanganisa> 10μm) muzvikamu zvakakosha senge njanji yekumisikidza pamusoro uye lead screw maburi ekutsigira, zvinokonzeresa kukanganisa kweiyo linear njanji mushure mekuiswa, kusaenzana preload yebhora screw, uye pakupedzisira zvinotungamira mukuipa kwekufamba. Semuenzaniso, panguva yechitatu-axis yekubatanidza kugadzirisa, iyo verticality kukanganisa kunokonzerwa nekukanganiswa kweiyo gwara renjanji inogona kuwedzera diagonal kureba kukanganisa kwecube kubva ± 10μm kusvika ± 50μm.
Interface gap ye spliced structure: Granite zvikamu zvemichina mikuru zvinowanzotora nzira dzekubatanidza (zvakadai se-multi-section bed splicing). Kana pane zvikanganiso zvidiki zvemakona (> 10 ") kana kushata kwepamusoro> Ra0.8μm pane splicing surface, kushushikana kwepfungwa kana kuputika kunogona kuitika mushure mekugadzirisa. Pasi pemutoro wenguva refu, zvinogona kutungamirira kukuzorora kwemaitiro uye kukonzera kudonha kwechokwadi (zvakadai sekuderera kwe2 kusvika ku5μm mukumisikidza zvakarurama gore negore).
Pfupiso uye kutsungirira kurudziro
Izvo zvakashata zvegranite zvine chivharo, chekuwedzera uye chinotaridza nharaunda kukanganisa kwe CNC midziyo, uye inoda kugadziriswa zvine hungwaru kuburikidza nenzira dzakaita sekugadzirisa zvinhu (senge resin impregnation kuti iwedzere kuoma), optimization yechimiro (sesimbi-granite composite mafuremu), thermal control tekinoroji (sekutonhora kwemvura) real-time calibration ne laser interferometer). Mumunda we nanoscale precision process, zvinotonyanya kukosha kuita yakazara-cheni kutonga kubva pakusarudzwa kwezvinhu, kugadzira tekinoroji kune yese muchina sisitimu yekukwidziridza zvakanakira kuita zvakanaka kwegranite uchidzivirira hurema hwayo.
Nguva yekutumira: May-24-2025