Isu takaongorora matambudziko ekugadziramaburi emarara e titanium alloy grille-senge zvikamu, kudzora kwekushomeka kwezvikamu uye nekugadziriswa kwakaringana kwemakona madiki, uye zvakagadziriswa nzira dzakasiyana siyana, uye maitiro ekumisikidza aive akatsetseka, uye pakupedzisira akagadzirisa matambudziko ekugadzirisa e titanium alloy grille -zvakaita zvikamu, zvekuti zvikamu zvinokosheswa mwero zvasvika zana muzana padanho.

1 Sumo

Iyo titanium alloy grille-senge zvikamu zvemuchina zvine akadzika-akadzika maburi emakomba, makona madiki uye kuomarara kusimba nekuda kwechangobva kugadzirwa chimiro chimiro, izvo zvinounza matambudziko makuru nematambudziko mukugadzirisa nekugadzira. Mune ino bepa, isu tinoongorora mashandiro echikamu chechimiro, kutsvaga kunetseka kwekugadzirisa, kudzidza chimwe nechimwe chinhu chakaoma nechinhu, uye kutsvaga mhinduro yekupa mareferenzi ekugadziriswa kwechimwe chakafanana titanium chiwanikwa zvikamu.

2 Analysis mamiriro uye machinability pamusoro nesefa zvikamu

Kune imwechete grille ndiro, maumbirwo ayo anowanzo kuve ne9 asiri-akaparadzaniswa maburi emakanda, gumi asina yunifomu akagoverwa U-akaumbwa maslots uye 6 EDM kubaya nzvimbo.

Chikamu cheiyo grille chakagadzirwa kubva mundiro yetitanium chiwanikwa zvinhu, iyo yekupedzisira webhu ukobvu ndeye 4mm uye mbabvu kukwirira iri 3mm, chikamu chacho hachina kuomarara uye kusagadzikana kwekuparadzaniswa kwakanyanya kusaenzana mushure meMEDM machining, izvo zvinogona kukonzera kushomeka kukuru. Zvichakadaro, kureba kweguru gomba iri 726mm, uye iyo yakatenderera kurongeka ndeye Ï † 5.1H9, iyo kureba-kusvika-dhayamita reshiyo yakanyanya kukwirira, saka iko kunetseka kunetseka uye njodzi zvakakwirira zvakanyanya. Zvese chimiro chemukati cheiyo grille uye kona yekutendeuka kweiyo lug ndeye R2.5mm, saka iko kushanda kwekugadzirisa kwakaderera, zvakadaro, dhayamita yechishandiso idiki uye yakapusa kuputsa.

Nekuda kwematambudziko ari pamusoro, isu tinonyanya kutanga kutsvagisa kubva kune anotevera maficha ekugadzirisa matambudziko rimwe nerimwe.

(1) Ongororo pamachina ekugadzira gomba. Panguva imwecheteyo, iyo yekugadzirisa chaiyo kudikanwa iri kumusoro, uye iko kunetseka kwekugadzirisa kwakakura kwazvo. Tarisa pane maitiro ekuita iko iko kweiyo gomba gomba kuzadzisa izvo dhizaini dhizaini.

(2) Tsvagurudzo panzira yekudzora yechikamu deformation Ongorora yemukati kushushikana kugovera mamiriro echinhu chemashiti uye dhizaini chinzvimbo kuronga kwechikamu munzvimbo yekushushikana muyero wezvinhu; kuenderera mberi nekubvisa kusara kwekushushikana mukati mechikamu kuburikidza nekurongeka kwakanaka kweiyo thermal process nzira; kudzora kushushikana chizvarwa panguva yekugadzirisa mashandiro kuburikidza nekunyatso kugadzirisa kweiyoCnc machinenzira yekushandisa, uye pakupedzisira wozadzisa chinangwa chekudzora kushanduka kwechikamu.

(3) diki kona yekuvandudza chirongwa chekutsvagisa Chikamu Chikamu chese chemukati chimiro chekona ndiR2.5mm, hushoma dhayamita yazvino general vagadziri chishandiso che5mm, yakaderera kushanda painogadziriswa, chishandiso kuputsika. Kutsvagisa uchishandisa matsva cycloid azvikuya, madiki uye makuru dhayamita maturusi anoitwa zvakasiyana, kuitira kuvandudza mashandiro ezvikamu zvinogadziriswa, nepo ichinyatso kudzora njodzi yekuparara kwechishandiso uye kugadzirisa mhando uye kugadzikana kwezvikamu.

3 Dambudziko mukugadziriswa kwemakomba emakumbo

Mufananidzo 1 unoratidza grille lug gomba, hapana chiitiko muindasitiri kugadzirisa yakadai yakareba-dhayidhi chiyero cheiyo Ultra-yakatetepa titanium alloy hinge hole. Iko kunetseka kwekugadzirisa kunonyanya kuratidzwa mu: â 'Yakakwira hombe saizi kunyatso kudikanwa, gomba dhayamita iri nyore kwazvo kupfuudza varombo. Titanium chiwanikwa zvinhu zvinoratidzirwa neimwe nhanho yekushomeka, uye maitiro ekugadzirisa anokonzeresa kuvhara, ichiumba gomba "rakaputika", riine mugumo mumwe unopfuura musiyano wepamusoro uye mugumo mumwe uchipfuura musiyano wezasi. â € processChirongwa chekuita chinonetsa kuronga. Nekuda kwehurefu-dhayamita reshiyo yeguru gomba inosvika 142, parizvino ruzivo rwuripo kumba nekune dzimwe nyika, harugone kuwana kugadziriswa kweiyo yakadzika gomba chirongwa chekudzidza kubva, iyo indasitiri haina kumbobvira yakave yakadaro yakareba yakadzika gomba kugadzirisa muenzaniso . â ‘¢ Zvinonetsa mukugadzira maturusi nekugadzira. Kureba kwechibhorani uye reamer kunoda kudarika 890mm, uye dhayamita yechishandiso iri 4.8 ~ 5.1mm, iyo inoda zvakakwirira kwazvo zvinodiwa kune chishandiso zvinhu uye machining maitiro, pamwe nezvinodiwa zvepamusoro zvekumhanya, kutwasuka uye kumucheto kurongeka . Kana iyo dhayamita yemucheka wekucheka ikatsauka neanopfuura 0.02mm, hazvigoneke kugadzirisa zvigadzirwa zvinokodzera. â € £ Iyo yekushandisa yakaoma zvikuru kugadzira. Kuti uenzanise kushandiswa kwekuboora uye reamer, imwe seti yeakakosha kuchera kufa uye imwe seti yakakosha reaming kufa inofanirwa kugadzirwa zvichiteerana. Dambudziko guru nderekuti kurongeka kwekuchera kufa kwakanyanya, uye chinodikanwa chekubatana chiri pamusoro pe0.03mm, izvo zvinoita kuti kugadzirwa kwekushandisa kuve nenjodzi.
Mufananidzo 1 Dhizaini dhizaini yemakomba grille

4 Optimize iyo machining chirongwa uye tora yakasarudzika tooling

Maumbirwo ehunhu mugomba anoona kuti yakajairika yekuchera scheme haigone kushandiswa, uye inotevera yekugadzirisa scheme yakazogadziriswa mushure mekudzokorora kukakavara.

1ï¼, Shandisa chaiyo kuchera vanofa kuti chibooreso, 4.8mm pasi mugomba. Iwo ma drill bits ehurefu hwakasiyana hwe 300mm uye 500mm aishandiswa kuchera maburi kubva kumativi ese echikamu, nekudaro achidzivirira matambudziko ekuboora vibration uye kutsauka kunokonzerwa nekushandisa chaiko kwehurefu hwezvibhorani uye kushandisa zvizere urefu hunoshanda hwe chibooreso, inova chete hafu yehurefu hwese hwegomba remugodhi. Kuderedza chibooreso zvishoma pakureba nehafu zvinoreva kudzikisa kureba-kusvika-dhayamita chiyero cheguru gomba nehafu, izvo zvinogona kunyatso kudzivirira chibooreso zvishoma kubva pakuputsa uye nekuvandudza zvakanyanya kugoneka. Iko kusagadzikana kweiyi mhinduro mhinduro: maburi eguru kuruboshwe uye kurudyi mativi echikamu anogona kunge asinganetsi, uye iyo yechina neyechishanu seti yemamita dhayamita ichaburitsa kusanzwisisika kusanzwisisika kwenzvimbo yeguru yepakati axis, zvichiita kuti kuzotevera kuitazve kuve kwakaoma .

(2) Kudzoreredza kune Ï † 4.9mm ine yakakosha reaming kufa. Kugadzirisa dambudziko rekusanzwisisika kwepakati axis yemakomba embunduru, giraidhi yepamberi yeiyo Ï † 4.9mm reamer yakanyatsogadzirirwa kuti ive Ï † 4.5mm, kuitira kuti ive nechokwadi chekuti pamberi peye reamer inogona kupfuura iyo yakasarudzika lug zvakanaka, uye panguva imwe chete, iko kubatana kwemakomba emakanda kunogona kugadziriswa kune imwe nhanho mushure meiyo Ï † 4.9mm reamer (beveled kumucheto, ine reaming mhedzisiro) yagadziriswa.

(3) Reaming kune Ï † 5mm, nekuti reaming vhoriyamu iyi maitiro idiki (0.1mm) uye reaming mugove yunifomu, kugadzirisa kugadzikana uye kugadzirisa mhando zviri nani, uye kutsauka kwegomba repakati axis kunogona kugadziriswazve .

4) Kudzoreredza kune Ï † 5.1H9 kuverengera kuenzana kweiyo gomba rekupedzisira. Maitiro aya anowanzoenderana nekurongeka kwekugadzira kweyekupedzisira reamer uye iko kugona kwekugadzira kwekufa kwekufa. Kana ma parameter uye chimiro chese ari maviri akagadzirwa zvine musoro uye iko kugona kwekugadzira kuchizadzisa izvo zvinodikanwa, iko kwekupedzisira kwehunyanzvi hwese maburi eguru anogona kuvimbiswa.

5 Drill uye reamer parameter uye zvinhu

Kubudirira kwekugadzirisa nzeve zvidimbu maburi zvinowanzoenderana nekururama kwematurusi uye zvishandiso. Matambudziko uye mhinduro dzematurusi zvinotevera.

. Mukuita kwekushandisa, chibooreso chinogadzira yakakura eccentric famba kana ichitenderera nemuchina, uye chibooreso chidimbu chakakandirwa mune elliptical trajectory, iyo inotungamira yakananga kugomba repazasi riri rakaboorwa kwete munzira yakatwasuka, asi neimwe deflection "curve". Naizvozvo, chibooreso chakadzokororwa uye chakazovandudzwa padanho rekugadzira kuti pakupedzisira isangane nezvinodiwa zvekugadzirisa.

(2) Reamer paramende dhizaini dhizaini Iyo garandi yeiyo yekupedzisira saizi yeiyo nzeve chidimbu gomba yakavimba ne Ï † 5.1H9 reamer iyo yakazopedzisira yashandiswa. Zvinoenderana neyakajairika dhizaini, iyo reamer ine yakatetepa dhayamita ye5.105 ~ 5.115mm uye neshure giraidhi saizi ye Ï † 5.1f6. Nekudaro, mushure mekuyedza nekusimbisa zvidimbu zvakati wandei zvekuyedza, iyo reamer ine saizi paramende iyi yaisakwanisa kuburitsa maburi emhando yepamusoro, uye huwandu hwekupfuura hwaive hwakakura se88%. Mushure mekudzokorodza zvakare chishandiso uye kuyedza, iwo chaiwo magadzirirwo emidziyo yechishandiso akawanikwa ari 5.10 ~ 5.11mm yecheka rekucheka dhayamita uye Ï † 5.1mm yeiyo yekumberi dhayamita dhayamita, uye chete mareamers ane iyi shiviriro renji akakwanisa kuburitsa. akakodzera maburi emakanda uye pakupedzisira akawana zero akakunda.

(3) Chishandiso chemidziyo dambudziko Yekutanga turu yekushandisa yaive HSS, iyo yakasimbiswa nekugadzirisa kuti simba uye kupfeka kuramba kweHSS zvinhu zvaive zvisina kukwana zvakakwana, uye chishandiso kupfeka kwaive kwakanyanya. Shure kwaizvozvo, mukubatana pamwe nedhipatimendi dhizaini, chibooreso nereamer zvinhu zvakanyatso shandurwa kuita carbide.

6 Implementation mhedzisiro

Iko kugona kweiyo chirongwa chirongwa kwakaverengerwa nekushandisa maviri zvidimbu zveyedzo bvunzo zvidimbu, uye zvimedu zvitanhatu zvepasi bhenji bvunzo zvimedu zvakashandiswa kugadzirisa nekuvandudza maitiro enzira uye kuona magadzirirwo parameter uye maturu ekushandisa ekuboora uye reamer. Iyo yekuchera kufa tooling yakadzokororwa kakawanda, uye pakupedzisira iyo-nguva-imwe yekupasa chiyero cheakawedzera-marefu maburi emakanda ezvikamu zvegrill akasvika 100%. Kubudirira kweiyi mhinduro mhinduro hakuzadzise chete mukaha muindasitiri kuvandudza titanium alloy yakawedzera-kureba chimiro chiyero yakatetepa gomba kugadzira, asi zvakare inochengetedza hunyanzvi kugona kweinotevera kugadziriswa kweiyo imwechete mamiriro zvikamu.

7 Deformation kudzora nzira yekutsvaga

Sezvo paine zvinhu zvakawanda zvinokonzeresa kushomeka kwezvikamu, zvinhu zvakasiyana zvinomanikidzana uye hukama hwakaomarara uye hwakaomarara, saka isu tinofanirwa kutanga kubva kumativi mazhinji, nzira dzakasiyana-siyana kugadzirisa dambudziko rekushomeka, uye pakupedzisira kudzora kugadzikana zvikamu mukati me0.3mm.

1) Ongorora kugovaniswa kwekushushikana kweiyo titanium alloy ndiro, gadzirisa chinzvimbo chechikamu chiri mumudziyo weplate, uye dzivisa kusagadzikana kusanzwisisika kubva kunobva. Zvinoenderana neyakajairwa zvinhu, mamiriro ekupa titanium alloy ndiro ye30mm ukobvu inopisa-yakakungurudzwa annealed nyika, uye iyo kupisa kurapwa system iri: 750～850â „ƒ, 15～120min, mweya kutonhora. Zvemukati uye zvekunze mapepa ekutsvagisa esainzi uye data rekuyedza pazvinhu zveTa15M titanium alloy plate inoratidza kuti mamiriro ekuparadzira kusagadzikana: huturu hutenderedzwa hwepakati peiyo tensile kushushikana σb iri mukuenzana, ndiko kuti, kushushikana kunoenderana. kugoverwa; nepo iyo yepamusoro uye yepasi pekunongedzera kweplate, iko kushushikana kwekushushikana kuri kuwedzera zvishoma nezvishoma. Saizvozvowo, iyo nzvimbo yewebhu mune yekupedzisira kugadzirisa mamiriro echikamu chakasarudzika chiri panzvimbo yepakati symmetric pamusoro pehukobvu wedhaidhi. Chinzvimbo chechikamu mudura chinoratidzwa muMufananidzo 2. Nenzira iyi, mushure mekugadzira chikamu, kusara kwekushushikana pawebhu yeiyo chikamu chakakonzerwa nesheya kunogona kubviswa, iyo inoita basa rakanaka mukutonga kwe flatness.

Muonde. 2 Pachinzvimbo chechikamu mune makushe chinoratidzwa

2) Kuronga kupisa kurapwa maitiro uye kudzora deformation kuburikidza zvine musoro kuronga kwehurongwa scheme. Kunyangwe kuumbwa kwekusara kwekushushikana panguva yekugadzira kunogona kuderedzwa zvakanyanya nenzira dzambotaurwa, kushushikana kwekusara kucharamba kuchioneka panguva yekupisa nekugadzira machira, izvo zvinoda kurongedzwa kwemaitiro ekurapa kupisa kuti aenderere kubvisa kusara kwekushushikana mushure meiyo machining maitiro yapera. Mushure mekurapa kwekupisa, iyo EDM maitiro anoitwa. Sezvo danho reEDM richichinja chimiro chechikamu zvakanyanya uye kunetsekana kwakagozverwazve, kugadzikana kwechikamu kunoda kuongororwa mushure mekuita kweEDM, uye kana iri> 0.3mm, kurapwa kwekupisa kunofanirwa kuitwazve.

8 Innovative kurapwa mhinduro dzemakona madiki

Chimiro chemukati chechikamu chegrille nekona yegumbo, U-slot kumagumo kumeso uye chimiro chechitenderedzwa zvese zviri R2.5mm, izvo zvinoda kuti chete hushoma dhayamita 5mm chishandiso chefekitori chinogona kushandiswa kugadzirisa chikamu ichi. . Sezvo simba rezvishoma dhayamita maturusi ari mashoma kwazvo, zviri nyore kwazvo kupaza chishandiso, zvichikonzera yakaderera kwazvo machining kumhanya uye mhando mhando njodzi.

Dassault Aviation's CATAI V5 software yakaunza iyo Trochoid-Mill cycloidal yekugaya yekuraira. Iyo Trochoid-Mill mhinduro yakanaka kuchinetso chekuchinja kamwe-kamwe mukucheka masimba uye inokodzera kwazvo mamiriro ezvinhu apo simba rechishandiso uye kuomarara zviri zvisina kunaka. Iyo machining trajectory idenderedzwa rimwe pamusoro peimwe, uye iyo nguva iri munzvimbo yekucheka panguva yekugadzirisa michina ishoma, izvo zvinobatsira zvikuru kugadzirisa dambudziko rehurombo hwekupisa kupisa kwe titanium alloy. Cycloid yekugaya inogona kuwana yakadzama kukura kwekucheka, diki yekucheka hupamhi uye hombe chikafu, ichishandisa zvizere iyo inoshanda kumucheto kureba kwechishandiso, icho chinogona kuwana izere kumucheto kureba kucheka uye nekunyatso kuvandudza simbi yekubvisa simbi.

Cycloid machine ine maitiro maviri, anoti chishandiso kutenderera uye chishandiso ichitenderera. Kune imwe neimwe shanduko yechishandiso, chishandiso chinocheka chimwe chinzvimbo zvakanyanya, uchishandisa denderedzwa tangential feed uye kudzoka, uye kudzika kwekucheka kunowedzera zvishoma nezvishoma kubva zero kusvika pakukwirira, uye zvishoma nezvishoma kunodzikira kusvika zero. Panguva imwecheteyo, panguva yese yeiyo cycloid machining, iyo yekucheka simba inowedzera zvishoma nezvishoma kubva zero uye zvobva zvadzikira kusvika kune yakapfava uye yunifomu shanduko nguva dzese. Zvichienzaniswa ari layered azvikuya, cycloid azvikuya anogona kuwedzera turusi upenyu kanopfuura katatu uye ari machine kunyatsoshanda kanopfuura katatu, saka machine zvakanakira zvikuru. Kufananidza kwecycloid milling uye zvakajairika machining nzira inoratidzwa mumufananidzo 3.


A kwakajairika machine

b) Kugaya cycloidal

Mufananidzo 3 Kufananidza pakati pecycloid milling uye echinyakare machining nzira

Kusiyana neyakajairwa michina nzira, chinangwa chikuru checycloid chigayo ndechekudzivirira kuzadza kwekuzadza kwakadai seyekugera uchinyatsogutsa hudzamu hwekucheka. Izvi zvinobatsira kwazvo kudzora kupfeka kwekushandisa uye kuwedzera hupenyu hwechishandiso. Uye nekuda kwekudzikiswa kwekucheka hunyanzvi uko kunogona kuunzwa nekushandisa kweishoma turu-yekushandira envelopu kona, yakakura axial kudzika kwekucheka kupfuura zvakajairika nzira dzekugaya dzinogona kushandiswa mucycloid yekugaya nzira yekuvandudza zvinhu zvekubvisa mwero .

Cycloidal yekugaya tekinoroji inobvumidza kushandiswa kweakakura axial yakadzika ekucheka, ayo anogona kutsiva kudiwa kweakawanda akaisa-kumusoro mune akajairwa machining. Cycloidal yekugaya tekinoroji inoshanda zvakanyanya mukucheka kwakanaka kwezvinhu zvakaoma, uye mhedzisiro yakayerwa inoratidza kuti chishandiso chekupfeka chakadzikira zvakanyanya necycloidal milling pane neyakajairwa machining nzira eiyo yakafanana chiyero chekubvisa zvinhu uye nguva yekushandisa. Kubudikidza nekushandisa kwecycloid yekugaya tekinoroji, kugadziriswa kwemahombekombe madiki emakona kunogona kuzadzikisa zvakapetwa nehafu yekuedza, iyo isingogadzise chete mhando yezvikamu zvakaisirwa, asi zvakare inovandudza mashandiro ekugadzirisa, inoderedza mutengo wekugadzira, uyezve zvirinani inovimbisa iyo yekugadzirisa mhando yezvikamu.

9 michina Mhedziso

Nekutora iri pamusoro maitiro maitiro, iko kugadzirira kweCnc machinechirongwa, pamwe nekugadzirwa uye kugadzirwa kwekuboora mabheti, reamers uye yakakosha kuchera inofa, iro dambudziko rakaoma reg hole machining rakagadziriswa. Iyo-yenguva-imwe yekupfuura chiyero che titanium chiwanikwa chakadzika gomba machining inosvika 100%, uye kumeso kwetete-rakakomberedzwa dhizaini-yakaita zvikamu zvinosvika 0.3mm. zvichienzaniswa neyakajairwa machining nzira, iko kushanda kwemakona machining emakwenzi inowedzerwa ne3 nguva. Zvichienderana nezvakataurwa pamusoro apa mumatanho ehunyanzvi ekugadzira matekinoroji, mashandiro egrill-senge zvikamu akapedzwa zvakanaka.