Thread inonyanyo kuve yakakamurwa kuita yekubatanidza tambo uye yekutyaira tambo.
Zvekubatanidza tambo, nzira huru dzekugadzirisa dziri kurova, tambo, kutendeuka, kutenderera, kukwiza, nezvimwe. Kune tambo yekufambisa, nzira huru dzekugadzirisa dzakashata uye dzakatwasuka kutenderera - kukuya, chamupupuri chigayo - chisina kumira uye kutendeuka kwakanaka, nezvimwe.
Iyi inotevera nzira dzakasiyana dzekugadzirisa:
1. Kucheka kweshinda
Kazhinji, inoreva nzira yekugadzira machira pane yekushandira ine yekucheka kana chishandiso chishandiso, kunyanya kusanganisira kutendeuka, kugaya, kurova, tambo, kukuya, uye kudengenyeka kwechamupupuri, nezvimwewo. yemuchina chishandiso inovimbisa kuti iyo yekushandura chishandiso, yekugaya cutter, kana yekukuya vhiri inogona kutamisa imwe tungamira nenzira kwayo uye zvakaenzana pamwe axial kutungamira kweiyo workpiece. Panguva yekukorobha kana tambo, chishandiso (pombi kana kufa) chinotenderera zvinoenderana nechaishandiswa, uye chishandiso (kana chishandiso) chinofamba chichitungamirwa zvine mutsindo neiyo yekutanga yakaumbwa tambo.
Shinda inoshandura lathe inogona kuitwa nefomu kutendeuka chishandiso kana tambo kamu turu (ona tambo yekugadzirisa chishandiso). Kutenderedza tambo nefomu kutendeuka chishandiso inzira yakajairika yechimwe chidimbu uye diki batch kugadzirwa nekuda kwayo yakapusa chimiro. yekutenderera tambo neshinda yekucheka ine yakakwira kugadzirwa kushanda, asi chishandiso dhizaini, saka inongokodzera yepakati nepakakura-mikuru kugadzirwa kwepfupi tambo workpiece ine diki tambo. Muzhinji, iko kukanda kwenzwi kwekutendeuka trapezoidal tambo neyakajairwa lathe inongogona kusvika 8-9 giredhi (JB2886-81, yakafanana pazasi); iyo kugadzirwa kana kurongeka kunogona kuvandudzwa zvakanyanya kana machina tambo pane yakasarudzika tambo lathe.
2. Thread chigayo
Kugaya kunoitwa pane tambo yekugaya muchina ine disc cutter kana mucheki wemizinga. Iyo disk yekugaya cutter inowanzo shandiswa yekugaya trapezoidal yekunze tambo pane sikuru tsvimbo, honye, uye zvimwe zvekushandira. Muzinga wemagetsi unocheka unoshandiswa kucheka shinda dzemukati nekunze dzakajairika uye tambo taper. Nekuti inokwenenzverwa neyemakona-kumucheto azvikuya akacheka uye kureba kwayo kwekushanda chikamu kwakakura kupfuura kureba kwetambo ichagadziriswa, iyo workpiece inogona kugadziriswa chete ne1.25 ~ 1.5 kutenderera, uye kugadzirwa kwacho kwakanyanya kwazvo. Iko kukanda kwakaringana kwetambo yekugaya inogona kusvika 8-9 giredhi, uye iyo yepamusoro roughness iri R 5-0.63 μm. Iyi nzira inokodzera kugadzirwa kwakawanda kwetambo workpieces ine yakajairwa chaiyo kana yakaoma machining usati wagaya.
3. Thread kukuya
Inonyanya kushandiswa kumachina chaiyo tambo yeyakaomeswa workpiece pane yekukuya tambo. Zvinoenderana neakasiyana echikamu chemuchinjikwa chegumbo rekukuya, rinogona kukamurwa kuita tambo imwechete yekukuya vhiri uye yakawanda-tambo yekukuya vhiri. Mhedzisiro yacho inoratidza kuti kukanda kwenzwi kweiyo imwechete tambo yekukuya vhiri iri 5-6 giredhi, uye iyo yepamusoro roughness iri R 1.25-0.08 μm, Zviri nyore kukuya vhiri kupfeka. Iyi nzira yakakodzera yekukuya chaiyo lead lead sikuru, tambo geji, honye, diki batch yeiyo yakamisikidzwa workpiece, uye zororo kukuya chaiko hob. Multi-mutsetse kukuya vhiri kukuya kwakakamurwa kuita nzira yekureba yekugedza uye kucheka munzira yekukuya. Hupamhi hwegumbo rinokuya munzira yekugedza kureba idiki pane kureba kwetambo kuti ive ivhu, uye shinda inogona kukwirwa kusvika pakukura kwekupedzisira nekufambisa vhiri kureba kamwe kana kanoverengeka. Iyo yekugaya vhiri hupamhi hwecheka munzira yekugaya yakakura kudarika hurefu hwetambo kuti ive ivhu. Gumbo rinokuya rinocheka mukati meiyo workpiece radially, iyo workpiece inogona kupedziswa mushure meanenge 1.25 shanduko. Kubudirira kwacho kwakakwirira, asi iko kunyatso kuderera, uye kupfeka kwegumbo kunonyanya kuoma. Iyo yakatemwa munzira yekugaya yakakodzera kurerutsa yekukomba matepi nehukuru batch uye kukuya dzimwe dzinosunga tambo.
4. Thread kukuya
Iyo mhando yemhando kana sikuruu mhando tambo yekukachira chishandiso chakagadzirwa nezvinhu zvakapfava senge simbi yakakandwa inoshandiswa kukuya zvikamu zveiyo yakarukwa tambo ine kukanganisa kwenamo kumberi uye kudzosera kutenderera kunatsiridza kunyatsoita kwenzwi. Iko kushanduka kweyakaomeswa tambo yemukati inowanzo bviswa nekukuya kunatsiridza kunyatso.
5. Kubata nekutora jacking
Kubaya ndeye kushandisa imwe simbi yekumonyanisa pombi mukati megomba rakatemwa pasi peiyo workpiece kugadzirisa tambo dzemukati. Sleeve ndeye kushandisa kufa kutema tambo dzekunze pane tsvimbo (kana pombi) yekushandira. Kugadzirwa kwemachira kwekutepa kana ruoko kunoenderana nekujeka kwepombi kana kufa. Kunyangwe paine nzira dzakawanda dzekugadzirisa tambo dzemukati nekunze, shinda dzemukati dzediki dhayamita dzinogona chete kuvimba nekugadzirisa pombi. Kubaya uye tambo kunogona kuitwa nemaoko, sezvingaita lathes, kudhinda michina, kubata, uye tambo dzemuchina.
Sarudzo musimboti wekucheka ma parameter etambo lathe
Nekuti iyo dhizaini inotsanangudza iyo tambo (kana lead) yetambo, kiyi yekusarudza yekucheka ma parameter ndeyekutarisa spindle kumhanya "n" uye kucheka kudzika "ap".
1) Sarudzo yekumhanyisa kumhanya
Zvinoenderana nemuchina unotenderera chokurukisa, kumwe kutendeuka uye chishandiso chinopa mutobvu mumwe kana uchinge washandura shinda, iyo yakasarudzika spindle kumhanya inosarudza iyo yekumhanyisa kumhanya kweCNC lathe. Iyo tambo inotungamira (pini mune imwechete tambo) muchikamu chekugadzirisa tambo chikamu chakaenzana neiyo yekumhanyisa kumhanya "vf" inoratidzwa ne feed rate "f (mm / r)".
vf = nf (1)
Inogona kuonwa kubva pafomula kuti iyo yekumhanyisa yekumhanyisa "vf" yakanangana zvakananga kune chiyero chekudya "f". Kana chokurukisa kumhanya kwechimushini chishandiso chakasarudzwa kuve chakanyanya kukwirisa, iyo yakashandurwa yekumhanyisa yekumhanyisa inofanirwa kuve yakakwirira kwazvo kupfuura yakatarwa yekumhanyisa yekumhanyisa yekumushini chishandiso Naizvozvo, iyo paramende yekugadzika kweiyo feed system uye yemagetsi gadziriso yemuchina chishandiso inofanirwa kutariswa kana uchisarudza spindle kumhanya kana uchishandura tambo, kudzivirira kuitika kwe "yakashatiswa tambo" kana iyo pani padhuze ne yekutanga / yekupedzisira nzvimbo isingasangane. zvinodiwa.
Kunze kwezvo, zvinofanirwa kucherechedzwa kuti kana tambo yekugadzirisa yatanga, iyo yekumhanyisa yekumhanyisa kukosha haigone kuchinjwa kazhinji, uye spindle kumhanya inosanganisira kupedzisa machining inofanira kushandisa yakasarudzwa kukosha panguva yekutanga chikafu. Zvikasadaro, iyo CNC system inokonzeresa "yakashatiswa tambo" nekuda kweiyo "overshoot" yechinongedzo chekupomba chiratidzo cheye pulse encoder.
2) Sarudzo yekucheka kudzika
Nekuda kwesimba rerombo rekushandisa, yakakura yekucheka chikafu chiyero, uye hombe yekucheka chikafu kubva kutambo kutendeuka kuita fomu kutendeuka, zvinowanzo fanirwa kuita fractional feed machining uye sarudza yakadzikama yekucheka kudzika zvinoenderana nekuderera kwemaitiro. Tafura 1 inonyora zvirevo zvenguva dzekudya uye kucheka kudzika kweyakajairika metric sikuru yekucheka.
| Pitch | Thread yakadzika (End Radius) | Kucheka kudzika (Dhayamita kukosha) | ||||||||
| 1 Nguva | 2 Nguva | 3 Nguva | 4 Nguva | 5 Nguva | 6 Nguva | 7 Nguva | 8 Nguva | 9 Nguva | ||
| 1 | 0.649 | 0.7 | 0.4 | 0.2 | ||||||
| 1.5 | 0.974 | 0.8 | 0.6 | 0.4 | 0.16 | |||||
| 2 | 1.299 | 0.9 | 0.6 | 0.6 | 0.4 | 0.1 | ||||
| 2.5 | 1.624 | 1 | 0.7 | 0.6 | 0.4 | 0.4 | 0.15 | |||
| 3 | 1.949 | 1.2 | 0.7 | 0.6 | 0.4 | 0.4 | 0.4 | 0.2 | ||
| 3.5 | 2.273 | 1.5 | 0.7 | 0.6 | 0.6 | 0.4 | 0.4 | 0.2 | 0.15 | |
| 4 | 2.598 | 1.5 | 0.8 | 0.6 | 0.6 | 0.4 | 0.4 | 0.4 | 0.3 | 0.2 |
Post nguva: Zvita-04-2020