Burrs ali paliponse pokonza zitsulo. Ziribe kanthu momwe zida zotsogola zotsogola zomwe mumagwiritsa ntchito, zidzabadwira pamodzi ndi mankhwalawo. Ndi makamaka mtundu wa owonjezera chitsulo filings kwaiye pa processing m'mphepete mwa zinthu kuti kukonzedwa chifukwa mapindikidwe pulasitiki zinthu. Makamaka zida zokhala ndi ductility zabwino kapena zolimba zimakhala zokonda kwambiri ma burrs.
Mitundu ikuluikulu ya ma burrs imaphatikizira ma burrs akuthwa, ziboliboli zakuthwa zangodya, sipatter ndi zina zotsalira zachitsulo zochulukira zomwe sizikukwaniritsa zofunikira za kapangidwe kazinthu. Pankhani ya vutoli, palibe njira yabwino yothetsera vutoli popanga mpaka pano. Choncho, pofuna kuonetsetsa kuti mapangidwe apangidwe apangidwe, akatswiri amatha kugwira ntchito mwakhama pochotsa ndondomeko ya kumbuyo. Mpaka pano, zinthu zosiyanasiyana zimakhala ndi zofunikira zosiyanasiyana. Pali njira zambiri komanso zida zochotsera ma burrs.
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Nthawi zambiri, njira zochotsera burr zitha kugawidwa m'magulu anayi:
1. Mulingo wokhotakhota (kukhudzana kwambiri)
Zomwe zili m'gululi ndikudula, kugaya, kusefera ndi kusefera.
2. Mulingo wamba (kukhudza kofewa)
Zamgululi ndi kugaya lamba, kugaya, kugaya magudumu otanuka ndi kupukuta.
3. Mulingo wolondola (kulumikizana kosinthika)
M'gulu ili ndi flushing processing, electrochemical processing, electrolytic akupera ndi anagudubuza processing.
4. Mulingo wolondola kwambiri (kulumikizana kolondola)
M'gulu ili ndi abrasive otaya deburring, maginito akupera deburring, electrolytic deburring, matenthedwe deburring ndi wandiweyani radium wamphamvu akupanga deburring, etc. Mtundu wa deburring njira angapeze okwanira mbali processing olondola.
Tikasankha njira yochepetsera, tiyenera kuganizira zinthu zambiri, monga momwe zinthu zilili, mawonekedwe apangidwe, kukula kwake ndi kulondola. Makamaka, tiyenera kulabadira kusintha pamwamba roughness, dimensional tolerances, mapindikidwe, ndi zotsalira nkhawa.
Zomwe zimatchedwa electrolytic deburring ndi njira yothetsera mankhwala. Imatha kuchotsa ziboliboli pambuyo pokonza, kugaya ndi kupondaponda, ndikuzungulira kapena kusokoneza mbali zakuthwa za zitsulo.
Njira yopangira ma electrolytic yomwe imagwiritsa ntchito electrolysis kuchotsa ma burrs ku zigawo zachitsulo, zomwe zimatchedwa ECD mu Chingerezi. Konzani chida cathode (kawirikawiri chopangidwa ndi mkuwa) pafupi ndi burr gawo la workpiece, ndi kusiyana kwina (nthawi zambiri 0,3 mpaka 1 mm) pakati pawo. The conductive mbali ya chida cathode limagwirizana ndi burr m'mphepete, ndi pamalo ena yokutidwa ndi wosanjikiza insulating kuganizira electrolysis pa burr mbali.
Pakukonza, cathode ya chidacho imalumikizidwa ndi mtengo woyipa wamagetsi a DC, ndipo chogwirira ntchito chimalumikizidwa ndi mtengo wabwino wamagetsi a DC. Electrolyte yotsika kwambiri (nthawi zambiri sodium nitrate kapena sodium chlorate aqueous solution) yokhala ndi mphamvu ya 0,1 mpaka 0.3 MPa imayenda pakati pa chogwirira ntchito ndi cathode. Pamene magetsi a DC atsegulidwa, ma burrs amasungunuka mu anode ndikuchotsedwa, ndipo amachotsedwa ndi electrolyte.
Electrolyte imawononga pang'onopang'ono, ndipo chogwirira ntchito chiyenera kutsukidwa ndikutsutsidwa ndi dzimbiri pambuyo pochotsa. Electrolytic deburring ndiyoyenera kuchotsa ma burrs pamabowo opingasa m'malo obisika kapena magawo omwe ali ndi mawonekedwe ovuta. Imakhala ndi magwiridwe antchito apamwamba ndipo nthawi yochotsa nthawi zambiri imangotenga masekondi angapo mpaka makumi amasekondi.
Njirayi imagwiritsidwa ntchito popanga magiya, ma splines, ndodo zolumikizira, matupi a valve ndi mipata ya mafuta a crankshaft, komanso kuzungulira ngodya yakuthwa, etc. Choyipa ndichakuti magawo omwe ali pafupi ndi ma burrs amakhudzidwanso ndi electrolysis, komanso pamwamba. imataya kuwala kwake koyambirira ndipo imakhudzanso kulondola kwake.
Zachidziwikire, kuwonjezera pakuchotsa ma electrolytic burr, palinso njira zapadera zochotsera burr:
1. Abrasive flow deburring
Abrasive flow Machining Technology (AFM) ndi njira yatsopano yomalizitsira ndikuchotsa yomwe idapangidwa kunja kumapeto kwa zaka za m'ma 1970. Njirayi ndi yoyenera makamaka kwa ma burrs omwe angolowa kumene, koma si oyenera mabowo ang'onoang'ono ndi aatali ndi nkhungu zachitsulo zotsekedwa. etc. si oyenera processing.
2. Magnetic akupera ndi deburring
Njirayi idachokera kumayiko omwe kale anali Soviet Union, Bulgaria ndi mayiko ena akum'mawa kwa Europe m'ma 1960. Pakatikati mwa zaka za m'ma 1980, opanga ku Japan adafufuza mozama pamakina ake ndikugwiritsa ntchito.
Pakugaya maginito, chogwiriracho chimayikidwa mu gawo la maginito lomwe limapangidwa ndi mitengo iwiri ya maginito, ndipo maginito abrasives amayikidwa mumpata pakati pa chogwirira ntchito ndi mitengo ya maginito. Ma abrasives amakonzedwa bwino motsatira njira ya maginito pansi pa mphamvu ya maginito, kupanga makina ofewa ndi okhwima a maginito. Burashi, pamene workpiece azungulira ndi kunjenjemera axially mu mphamvu maginito, workpiece ndi abrasive kusuntha wachibale wina ndi mzake, ndi abrasive burashi akupera pamwamba pa workpiece; njira yopangira maginito imatha kugaya ndikuchotsa mbali moyenera komanso mwachangu, ndipo ndiyoyenera Ndi njira yomaliza yokhala ndi ndalama zochepa, zogwira mtima kwambiri, kugwiritsa ntchito kwakukulu komanso mawonekedwe abwino azinthu zopangidwa ndi zinthu zosiyanasiyana, makulidwe ndi kapangidwe kake.
Pakalipano, mayiko akunja amatha kupukuta ndi kupukuta mawonekedwe amkati ndi kunja kwa thupi lozungulira, ziwalo zosalala, mano a gear, malo ovuta, ndi zina zotero, kuchotsa oxide sikelo pa mawaya, ndikuyeretsa matabwa osindikizira, etc.
3. Thermal deburring
Thermal deburring (TED) imagwiritsa ntchito kutentha kwakukulu komwe kumapangidwa ndi kuwonongeka kwa chisakanizo cha haidrojeni ndi mpweya wa okosijeni kapena mpweya ndi gasi wachilengedwe kuwotcha ma burrs. Ayenera kudutsa mpweya ndi okosijeni kapena mpweya wachilengedwe ndi mpweya mu chidebe chotsekedwa, ndikuziwotcha kupyolera mu spark plug, kotero kuti chisakanizocho chimaphulika nthawi yomweyo ndikutulutsa mphamvu zambiri za kutentha kuchotsa burrs. Komabe, workpiece akamayaka kuphulika, ufa wake oxidized amamatira pamwamba pa workpiece ndi ayenera kutsukidwa kapena kuzifutsa.
4. MiLa yamphamvu akupanga deburring
MiLa yamphamvu akupanga deburring teknoloji ndi njira yowonongeka yomwe yakhala yotchuka m'zaka zaposachedwa. Kuyeretsa kokha ndikokwanira 10 mpaka 20 kuposa makina wamba oyeretsera akupanga. Mabowo amagawidwa mofanana mu thanki yamadzi, kuchotsa kufunikira kwa akupanga kuyeretsa. Mlingo utha kumalizidwa nthawi imodzi mkati mwa mphindi 5 mpaka 15.
Tapanga njira 10 zodziwika bwino zochotsera aliyense:
1) Kuchotsa pamanja
Iyinso ndi njira yomwe imagwiritsidwa ntchito ndi mabungwe ambiri, pogwiritsa ntchito mafayilo, sandpaper, mitu yopera, ndi zina zotero monga zida zothandizira. Mafayilo ali ndi kusungitsa pamanja komanso kusintha kwa pneumatic.
Ndemanga yachidule: Mtengo wa ntchito ndi wokwera mtengo, kugwira ntchito bwino sikokwera kwambiri, ndipo n'zovuta kuchotsa mabowo ovuta. Zofunikira zaukadaulo kwa ogwira ntchito sizokwera kwambiri, ndipo ndizoyenera kuzinthu zomwe zimakhala ndi ma burrs ang'onoang'ono komanso zida zosavuta.
2) Kuchepetsa kufa
Gwiritsani ntchito ufa ndi nkhonya kuchotsa burrs.
Ndemanga yachidule: Kukhomerera kwina kwina (kufa movutikira + kufa nkhonya kufa) kumafunikanso, ndipo kufa kojambula kumafunikanso. Ndizoyenera kuzinthu zokhala ndi malo osavuta olekanitsa, ndipo magwiridwe antchito komanso kuwongolera ndikwabwino kuposa ntchito yamanja.
3) Kuwotcha ndi kuwotcha
Kuwonongeka kwamtunduwu kumaphatikizapo kugwedezeka, sandblasting, roller ndi njira zina, zomwe panopa zimagwiritsidwa ntchito ndi makampani ambiri.
Ndemanga yachidule: Pali vuto kuti kuchotsako sikuli koyera kwambiri, ndipo zingakhale zofunikira kuti mugwiritse ntchito pamanja ndi ma burrs otsalawo kapena kugwiritsa ntchito njira zina kuchotsa ma burrs. Zoyenera kuzinthu zazing'ono zomwe zimakhala ndi magulu akuluakulu.
4) Kutentha kozizira
Gwiritsani ntchito kuziziritsa kuti muchepetse ma burrs mwachangu, kenako tsitsani ma projectiles kuti muchotse ma burrs.
Ndemanga yachidule: Mtengo wa zida ndi pafupifupi 20,000 mpaka 300,000 yuan; ndizoyenera pazinthu zokhala ndi makulidwe ang'onoang'ono a burr ndi zinthu zazing'ono.
5) Kuphulika kwamoto kuphulika
Amatchedwanso kutentha kwa kutentha ndi kuphulika kwamoto. Podutsa mpweya woyaka moto mu ng'anjo ya zida, ndiyeno kudzera muzochita zamtundu wina ndi mikhalidwe, mpweya umaphulika nthawi yomweyo, ndipo mphamvu yopangidwa ndi kuphulikako imagwiritsidwa ntchito kusungunula ndi kuchotsa ma burrs.
Ndemanga yachidule: Zidazi ndizokwera mtengo (mitengo mu mamiliyoni), zimafuna luso lapamwamba logwiritsira ntchito, zimakhala ndi mphamvu zochepa, ndipo zimakhala ndi zotsatira zoyipa (dzimbiri, kusinthika); amagwiritsidwa ntchito makamaka m'magawo ena olondola kwambiri, monga magalimoto ndi malo oyendetsa ndege.
6) Kusintha kwa makina osindikizira
Ndemanga yachidule: Zidazi sizokwera mtengo kwambiri (makumi zikwizikwi), ndipo ndizoyenera kugwiritsa ntchito momwe malo opangira malo ndi osavuta komanso malo ochotserako ofunikira ndi osavuta komanso okhazikika.
7) Chemical deburing
Pogwiritsa ntchito mfundo ya electrochemical reaction, magawo opangidwa ndi zitsulo amatha kuchotsedwa mwachisawawa.
Ndemanga yachidule: Ndi yoyenera kwa ma burrs amkati omwe ndi ovuta kuchotsa, ndipo ndi oyenerera ma burrs ang'onoang'ono (kuchuluka kwa mawaya osachepera 7) pamagulu a pampu, matupi a valve ndi zinthu zina.
8) Electrolytic deburring
Njira yopangira ma electrolytic yomwe imagwiritsa ntchito electrolysis kuchotsa ma burrs kumadera achitsulo.
Ndemanga yachidule: Ma electrolyte amawononga pang'onopang'ono, ndipo magawo omwe ali pafupi ndi ma burrs amakhudzidwanso ndi electrolysis. Kumwamba kudzataya kuwala kwake koyambirira komanso kukhudza kulondola kwake. Chogwiritsira ntchito chiyenera kutsukidwa ndi kutetezedwa ndi dzimbiri pambuyo pochotsa. Electrolytic deburring ndiyoyenera kuchotsa ma burrs pamabowo opingasa m'malo obisika kapena magawo omwe ali ndi mawonekedwe ovuta. Imakhala ndi magwiridwe antchito apamwamba ndipo nthawi yochotsa nthawi zambiri imangotenga masekondi angapo mpaka makumi amasekondi. Ndiwoyenera kuthamangitsa magiya, ndodo zolumikizira, matupi a valve ndi mipata yamafuta a crankshaft, komanso kuzungulira kozungulira pamakona, ndi zina zambiri.
9) Kuthamanga kwamadzi kwa jet deburring
Pogwiritsa ntchito madzi ngati sing'anga, mphamvu yake yowonongeka ingagwiritsidwe ntchito kuchotsa ma burrs ndi kuwala kopangidwa pambuyo pokonza, ndipo nthawi yomweyo kukwaniritsa cholinga choyeretsa.
Ndemanga yachidule: Zidazi ndizokwera mtengo ndipo zimagwiritsidwa ntchito kwambiri pamtima pagalimoto komanso makina owongolera ma hydraulic pamakina omanga.
10) Akupanga deburring
Akupanga mafunde kupanga yomweyo mkulu kuthamanga kuchotsa burrs.
Ndemanga yachidule: Makamaka ma burrs ang'onoang'ono. Nthawi zambiri, ngati ma burrs akuyenera kuwonedwa ndi microscope, mutha kuyesa kugwiritsa ntchito njira ya akupanga kuti muwachotse.
Nthawi yotumiza: Nov-16-2023
