Chii chinoshandiswa pakuverenga senisheni dimension cheni?
Kururama uye nemazvo:
Kuverengera gungano dimension cheni inovimbisa kuti une zviyero uye zviyero zvezvikamu.Izvi zvichabatsira zvakare kuve nechokwadi kurongeka kwakaringana uye kukwana.
Kuchinjana:
Assembly dimensions maketani anoshandiswa kuona kushivirira miganhu yezvikamu uye kuve nechokwadi chekuchinjana.Izvi zvinonyanya kukosha mukugadzirwa kwehuwandu uko zvikamu zvinofanirwa kuunganidzwa kana kutsiviwa zviri nyore.
Kudzivisa Kupindira:
Kuverenga zviyero zvemaketani zvinogona kubatsira kudzivirira kusawirirana kana kukanganisa pakati pezvikamu.Iwe unogona kuve nechokwadi chekuti zvikamu zvinokwana pamwe chete zvakanaka nekuona iwo chaiwo zviyero.
Stress Analysis:
Nekuverenga cheni dzemagungano, mainjiniya anogona kunzwisisa kugoverwa kwekushushikana mukati megungano.Ruzivo urwu rwakakosha mukugadzirwa kwezvikamu zvezvimiro kuti ive nechokwadi chekuti zvinokwanisa kushingirira mitoro kana masimba anotarisirwa.
Kudzora Hunhu:
Nekunyatso kuverengera gungano dimension cheni iwe unogona kumisa zviyero zvekutonga kwemhando, izvo zvinokutendera kuti uone chero kukanganisa kana kutsauka mukugadzira maitiro.Izvi zvichabatsira kuchengetedza zviyero zvepamusoro uye kuderedza kukanganisa.
Kugadzirisa Mutengo:
Nekudzikisa tsvina, kuderedza zvikanganiso zvekugadzira uye kuve nechokwadi chekushanda zvakanaka kwezviwanikwa, kuverenga kwemaketani egungano kunotungamira mukukwirisa mutengo.Izvi zvakanyanya kukosha kumaindasitiri anoda kunyatsojeka, senge aerospace kana kugadzira mota.
Dimension chain tsananguro:
The assembly dimension chain is a dimension cheni iyo ine zviyero uye zvakatarisana zvinzvimbo zvezvikamu zvakawanda mukuita kwegungano.
Iyo dimensional cheni inovimbisa kurongeka kwegungano uye kurongeka panguva yegungano.
Kunzwisisa kwakapusa ndiko kuchave neketani yezviyero zvezvikamu uye hukama hwegungano.
Chii chinonzi Size Chain?
Dimension chain iboka rezviyero zvakabatana zvakaumbwa panguva yekuungana kwemuchina kana kugadzira chikamu.
Dimension chain inoumbwa nemhete uye zvindori zvakavharwa.Mhete yakavharwa inogona kuumbwa zvakasikwa mushure megungano kana machining oparesheni.
Iyo dimensional cheni inogona kushandiswa kuongorora uye kugadzira tekinoroji maitiro zviyero.Izvo zvakakosha mukugadzira machining maitiro uye kuve nechokwadi chechokwadi chekusangana.
Sei pane dimension chain?
Iyo dimensional cheni iripo kuti ive nechokwadi chekuti chikamu chimwe nechimwe chinogadzirwa nekururama kunodiwa.
Kuti ive nechokwadi chemhando mukugadzirisa, kuungana, uye kushandisa zvinodikanwa kuverenga uye kuongorora mamwe mativi, kushivirira, uye tekinoroji zvinodiwa.
Iyo dimensional chain ipfungwa yakapusa inovimbisa kugadzirwa kwakawanda kwezvigadzirwa.Ndihwo hukama huri pakati pezvikamu mugadziriro yegungano izvo zvinogadzira cheni dzemadimensional.
Dimension chain tsananguro matanho:
1. Chiratidzo chegungano chinofanira kuvharwa.
2. Gadzirisa gapu regungano.
3. Kushivirira kwezvikamu zvegungano kunofanira kutsanangurwa.
4. The dimension chain inogadzira yakavharwa-loop dimension cheni segunganocnc machining zvikamu.
Assembly dimension chain kesi 1
Sezvinoratidzwa mumufananidzo, kurongeka kweiyo kushivirira kunyora kunoongororwa kuburikidza nekuverenga:
Kutanga kuverenga maererano nekutsauka kwepamusoro:
Ukuru hwehukuru hwekunze kwemukati dhayamita: 45.6
Saizi yepamusoro yemuganhu wechikamu A: 10.15
Muganho saizi pachikamu B: 15.25
Muganho saizi pachikamu C: 20.3
kuverenga:
45.6-10.15-15.25-20.3=-0.1
Iko kupindira kuchave 0.1mm kana zvikamu zvikasvika pamuganhu wepamusoro.Izvi zvichaita kuti zvidimbu zvisaunganidzwe zvakanaka.Zviri pachena kuti kushivirira kwekudhirowa kunoda kuvandudzwa.
Wobva waverenga kutsauka nekudzvanya:
Yakaderera muganho saizi yekunze furemu dhayamita yemukati: 45.0
Saizi yakaderera yemuganhu wechikamu A: 9.85
Saizi yakaderera yemuganhu wechikamu B: 14.75
Saizi yakaderera yemuganhu wechikamu C: 19.7
kuverenga:
45.0-9.85-14.75-19.7=0.7
Kana zvikamu zvikaitwa pazasi kutsauka ipapo gaka regungano richava 0.7mm.Hazvina kuvimbiswa kuti zvikamu zvichave nekutsauka kwakaderera kana zvichinyatsogadziriswa.
Wobva waverenga zvichibva pa zero kutsauka:
Basic mukati dhayamita yekunze kwefuremu: 45.3
Chikamu A chakakosha saizi: 10
Chikamu B chikuru saizi: 15
Chikamu C saizi yekutanga: 20
kuverenga:
45.3-10-15-20=0.3
Cherechedza:Tichifunga kuti zvikamu zviri mumasikirwo ekutanga, pachave ne 0.3mm gap regungano.Iko zvakare hakuna vimbiso yekuti hakuzove nekutsauka muhukuru hwezvikamu panguva yekugadziriswa chaiko.
Magapu anogona kuoneka mushure mekugadzirisa madhirowa zvichienderana neyakajairwa kushivirira kwezviyero.
Yakakura gap: 45.6-9.85-14.75-19.7= 1.3
Minimum gap: 45-10.15-15.25-20.3= -0.7
Iyo dhizaini inoratidza kuti kunyangwe kana zvikamu zviri mukati mekushivirira, panogona kunge paine gaka kana kupindira kunosvika 0.7 mm.Izvo zvinodikanwa zvegungano hazvigone kuzadzikiswa muzviitiko zvakanyanyisa izvi.
Kubatanidza ongororo iri pamusoro, mapundu egungano kune matatu akanyanyisa ndeaya: -0.1, +0.7, uye 0.3.Verenga defect rate:
Verenga nhamba yezvikamu zvisina kukwana kuti uverenge chiyero chakaremara.
The defective rate ndeiyi:
(x+y+z) / nx 100%
Zvinoenderana nemamiriro akapihwa mumubvunzo, iyo inotevera system ye equations inogona kunyorwa:
x + y + z = n
x = n * ( – 0.1 / ( – 0.1 + 0.3 + 0.7) )
y = n * ( 0.7 / ( – 0.1 + 0.3 + 0.7) )
z = n * ( 0.3 / ( – 0.1 + 0.3 + 0.7) )
Isa maequation ari pamusoro muformula inotevera kuti uverenge chiyero chakakanganisika:
( – 0.1 * n / ( – 0.1 + 0.3 + 0.7) ) + ( 0.7 * n / ( – 0.1 + 0.3 + 0.7) ) + ( 0.3 * n / ( – 0.1 + 0.3 + 0.7) ) / nx 100%
Iyo yakashata mhinduro mwero ndeye 15.24%.
Kubatanidza kuverenga kwekushivirira nengozi ye15,24% chirema chechiyero, chigadzirwa chinofanira kugadziriswa kuitira kushivirira kwegungano.
1. Iko hakuna yakavharwa-loop dimension chain, uye kuongorora uye kuenzanisa hazvibvi pane yakakwana dimension chain.
2. Mhosho zhinji dzepfungwa dziriko.Mupepeti akashandura "kushivirira kwepamusoro", "kushivirira kwakaderera", uye "kushivirira kwakajairwa".
3. Zvakakosha kuongorora algorithm yekuverenga mitengo yegoho.
Chiyero chegoho chekugadzirisa zvikamu chinowanzogoverwa.Ndiko, mukana iwoyocnc machined epurasitiki zvikamuvari pakati nepakati ukoshi chikuru.Muchiitiko ichi, hukuru hunogona kuitika hwechikamu chikamu chayo chekutanga.
Verenga chiyero chakakanganisika.Iyi ndiyo reshiyo pakati pehuwandu hwezvinhu zvisina kukwana zvinogadzirwa nenhamba yese inogadzirwa.Tinogona sei kuverenga zvikamu zvenhamba tichishandisa kukosha kwegap?Izvo hazvina chekuita neiyo yekupedzisira gap kukosha inodiwa?Kana zviyero zviri zvekutanga, zvino zvinogona kuiswa uye kushandiswa mukuverenga kweyero isina kukwana.
Assembly dimension chain kesi 2
Ita shuwa kuti mukaha pakati pezvikamu wakakura kupfuura 0.1mm
Kushivirira kwechikamu 1 ndiko 10.00 + 0.00/-0.10
Kushivirira kwechikamu chechipiri ndiko 10.00 + 0.00/-0.10
Iko kushivirira kwegungano ndeye 20.1 + 0.10 / 0.00.
Chero bedzi ungano ichibvumirwa, haizovi nekuremara.
1. Hazvisi pachena kuti mukaha wekupedzisira wegungano chii, uye naizvozvo zvakaoma kutonga kana inokodzera.
2. Verenga huwandu uye hudiki hwemvumo hunoenderana nehukuru hwepurojekiti.
Yakanyanya gepu kukosha : 20.2-9.9-9.9=0.4
Iko kukosha kwepakati pepakati ndeye 20-10-10=0
Izvo hazvigoneke kuona kana inokodzera zvichibva pane gap riri pakati pe0-0.4.Mhedziso yekuti "hapana chiitiko chekusangana kwakashata" haisi yechokwadi..
Assembly dimension chain kesi 3
Pakati pemaburi enzvimbo yegoko uye mbiru, pane masaizi matatu emaketani.
Kushivirira kwechinhambwe chepakati pakati pemapositi maviri kunofanirwa kunge kuri kushoma pane kushivirira kwegungano remurume mune yekutanga dimension cheni.
Kushivirira pakati pezvinzvimbo nemaburi kunofanirwa kunge kuri kudiki mune yechipiri dimension cheni pane yepakati chinhambwe chematanda maviri.
Third Dimension Chain: Kushivirira kwechinzvimbo kunofanirwa kunge kuri kushoma pane kwegomba.
Kushivirira kwechikamu A ndiko 100+-0.15
Kushivirira kwechikamu B: 99.8 + 0.15
Nhambwe iri pakati pepini yepakati yechikamu A nechikamu B i70+-0.2
Nhambwe iri pakati pemakomba epakati echikamu B i70+-0.2
Iyo dhayamita yechikamu A's pini yekumisikidza ndeye 6+0.00/0.1
Iyo dhayamita yechikamu B's gomba rekumisa i 6.4+0.1/0.0
Sezvinoratidzwa mumufananidzo uyu, chiratidzo chekushivirira hachizokanganisa gungano kana ikasangana nekushivirira.
Kushivirira kwenzvimbo kunoshandiswa kuve nechokwadi chekuti zvinodiwa pagungano rekupedzisira zvinogona kuzadzikiswa.Mapini nemapini ari pachikamu A neB pamwe nenzvimbo dzawo anomakwa pachishandiswa madhigirii enzvimbo.
Assembly dimension chain kesi 4
Sezvinoratidzwa mumufananidzo, tanga wasimbisa kushivirira kweB imba.Kushivirira kwekusangana kweA axis kunofanirwa kunge kuri kushoma pane iyo yeB imba uye C giya.Kuendeswa kweB imba hakuzokanganiswe kana C giya ikashandiswa.
Assembly dimension chain kesi 5
Iyo perpendicularity yenzvimbo axis kune yakaderera goko yakavharwa.
Kuti ive nechokwadi chekumira, ganda rezasi uye shaft yekumisikidza inofanira kuunganidzwa nekushivirira kwakakura kupfuura iyo yeganda repamusoro.
Kudzivirira shaft kubva panzvimbo yayo kana goko repamusoro raunganidzwa, kushivirira pakati pemakanda ekumusoro neazasi kunofanirwa kunge kwakakura pane kushivirira kwekusangana kwegomba rekumisa.
Assembly dimension chain kesi 6
Kuti ive nechokwadi chekuenderana muhurefu hwemutsara we art kunze kwegungano, kushivirira kweiyo concave joint yeimba yepasi kunofanirwa kunge kuri kudiki pane iyo convex joint yeimba yepamusoro.
Assembly dimension chain kesi 7
Kuona kuti hapana mukaha pakati pezvikamu A uye B, kushivirira kwechikamu A pamwe nechikamu chegungano rekutanga kunofanirwa kunge kwakakura kupfuura chikamu B nechikamu C zvakasanganiswa.
Assembly dimension chain kesi 8
Kutanga, sezvinoratidzwa mumufananidzo: kutanga tarisa kushivirira kwegungano A.
Kushivirira pakati pegungano datum A uye mota C kunofanirwa kuve kudiki pane iri pakati pemota B nechikamu B.
Kuti uone kutenderera kwakatsetseka, giya rekutyaira rinofanira kutenderera zvakanaka.Iyo A yegungano datum uye dhiraivha yekushivirira inofanira kunge iri shoma pane imwe neimwe.
Assembly dimension chain kesi 9
Kuti ucherechedze kushivirira munyaya yekusangana kwakawanda, iyo shaft diki uye hombe makomba musimboti inoshandiswa.Izvi zvichaita kuti pasave nekukanganiswa kwegungano.
Assembly dimension chain kesi 10
Kupindira kweGungano hakuzoitiki nokuti kushivirira kwegomba kwakanaka uye axis yakaipa.
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Nguva yekutumira: Oct-12-2023