Munhau dzekupedzisira, nzira yekugadzira yehombe-saizi strip ultrasonic welding slotted joint yakatsanangurwa uye yakasimbiswa nemiedzo.Chekutanga, iyo strip welding nyanga inopatsanurwa zvine mutsindo kuita mayuniti akati wandei kuitira kuti dhizaini yeyakaiswa welding nyanga ine yakaoma chimiro inoshandurwa kuita dhizaini yakapusa welding horn unit.Zvadaro chinhu chakabatanidzwa chinofananidzwa nehafu wave oscillator ine chikamu chakaenzana uchifunga nezvekubatanidza vibration.Iyo frequency equation yejoinhi inowanikwa nekushandisa iyo pfungwa yeakaenzana mechanical impedance.
Chekupedzisira, pesvedzero yenhamba yeslot, slot hupamhi uye slot kureba pane vibration maitiro emajoini ewelding yakadzidzwa nekushandisa iyo equation.Zvinoenderana neiyi nzira, akati wandei mapoka emahombe saizi strip grooves akagadzirwa uye akagadzirwa.Mhedzisiro yekuedza inoratidza kuti kuyerwa uye dzidziso dzeiyo resonance frequency yemajoini akasungwa ari muchibvumirano chakanaka.
Sezvakaratidzwa mumufananidzo uri pasi apa.Hurefu, hupamhi nekukora kwenyanga yewelding iL, B uye T zvakateerana.Fungidzira z axis senzira yekunakidzwa yetransducer.Pakushanda frequency, rectangular welding joint inoburitsa yekutanga-odha longitudinal vibration munzira yeZ.Pamajoini ekugadzira mitsetse, L≥2T, B uye L inogona kufananidzwa, saka kutenderera kunotenderera kwemajoini ewelding muX gwara kunogona kufuratirwa.
Nekuda kwekuti kudzungudza kuri kuchinjika munzira y kune simba guru pakuzunguzika kwelongitudinal, kazhinji kunoedzerwa nekutsveta.Nyanga yewelding yakakamurwa kuita (n+1) mayunitsi nekuvhura zvakafanana n slots munzira Y.Hupamhi uye kureba kwega yega slot ndeye W uye L2 zvakateerana, uye slots yakaparadzaniswa kubva kune yekupinza uye inobuda migumo yewelding nyanga l1 uye L3 zvakateerana.Kuti ive nechokwadi chekuti chikamu chimwe nechimwe chakaenzana zvakakwana, grooves yehupamhi W / 2 inofanira kuvhurwa kumativi ese maviri eiyo transverse welding nyanga.Saka, imwe neimwe welding mold unit inobatanidza trapezoidal horn ine rectangular chikamu.Tichifunga kuti hupamhi kumagumo ese uye pakati peimwe neimwe unit D1 uye D2, inogona kuoneka kubva pamusoro: L= L1 + L2 +L3
Nekuda kweiyo pateni imwe chete pakati pezvinhu, iyo inobuda amplitude ye weld inodederawo iyo pateni, uye kana yasanganiswa, iyo ultrasonic horn ichavawo nepeteni iyi, kuitira kuti dhizaini ye ultrasonic mold irerutsirwe kune dhizaini chero ipi zvayo. element.Mukuwedzera, inenge yakafanana.Kuti unyatso kudzvanya kuzungunutswa kwemukati uye kuve nechokwadi chekuti nyanga yewelding ine kuomarara kwakagadzikana, hupamhi hweiyo welding horn unit yakakamurwa negoroko kazhinji mukati!/ 8 ~!/ 4 (! Ndiyo wavelength yekutanga-yakarongeka longitudinal vibration mode ye welding nyanga), uye yakanakira upamhi hweiyo slot ndeye!/ 25 ~!/20[7], iyo grooving nhamba yewelding joints inogona kutariswa zvinoenderana nepamusoro apa maitiro.Nekuti hupamhi hweiyo welding nyanga unit kazhinji haipfuure!PI / 4, saka inogona kuongororwa neiyo-dimensional dzidziso.Chero ipi neipi yewelding unit muyuniti 1 inogona kutorwa seine matatu rectangular equisectional bars.
Aluminium alloy 7075 (Young's modulus E=7.17*1010N/M2 density ρ=2820kg/m3, Poisson's ratio V =0.34) yakasarudzwa nokuda kwenyanga yewelding.Equation (1) ~ (3) uye (6) yakashandiswa kuverenga nhamba n, kureba L2 uye hupamhi W hwenzvimbo dzakasiyana.Kana resonant kureba L ye strip welding nyanga yachinja nehupamhi B, resonant kureba L ye strip welding nyanga inoshanduka nehupamhi B. Iyo yakaverengerwa resonant frequency f=20kHz, L1=L3 kuti zvive nyore.Kana iyo slot kureba nehupamhi zvagara, resonant kureba kunoshanduka nehupamhi hwenyanga yeweld kana nhamba ye slot yasiyana.L2 =60mm, W =10mm.Sezvinoonekwa kubva kuFIG.2, yenyanga yakatsvetwa yewelding inoratidzwa muFIG.1, iyo yekutanga-yekurongeka resonance kureba idiki pane iyo isina kuvhurwa nyanga yewelding inoverengerwa maererano ne-dimensional theory (126mm), uye kureba kwehurefu hwerunyanga rwewelding kunowedzera nekuwedzera kwehupamhi hwenyanga yemoto, asi iyo kuwedzera kunoderera zvishoma nezvishoma.Mukuwedzera, apo resonant frequency uye weld weld inoramba iripo, resonant kureba kweweld kunoderera nekuwedzera kweslot nhamba.
Pamusoro pezvo, majoini matatu akakwenenzverwa ehukobvu hwakasiyana akagadzirwa nealuminium alloy 7075 (zvakafanana nepamusoro).Ukobvu T hweaya matatu akasungwa majoini uye yakayerwa harmonic vibration frequency FM yakapihwa.Kana iyo welding nyanga ukobvu iri isingasviki kota yewavelength (heino 63mm), kutsauka pakati peyakayerwa frequency uye magadzirirwo frequency ari pasi pe2%, iyo inogona kusangana nezvinodiwa zveinjiniya zvikumbiro.
Iyo refu strip ultrasonic plastiki welding joint yakakamurwa zvine mutsindo kuita akati wandei akaenzana zvinhu uye frequency equation yechinhu chakabatana chakatorwa nekufambisa matrix nzira.Kana hupamhi uye huwandu uye saizi yeslot zvichizivikanwa, iyo equation inogona kushandiswa kugadzira iyo strip yekubatanidza zviri nyore, zvichipa hwaro hwekufungidzira hwekugadzirwa kweiyo strip joint.Iri bepa rinoongororawo pesvedzero yeslot nhamba, slot upamhi uye slot kureba pane welding saizi yejoint kuburikidza nemienzaniso.Zvinogona kuoneka kuti iyi nzira inewo imwe pesvedzero pakugadzirisa dhizaini yejoinhi yewelding
Split groove mushure me strip welding nyanga vibration analysis, iyo welding nyanga inogona kukamurwa kuva yekupedzisira unit body uye yepakati unit cell, uchishandisa nzira yeinooneka elasticity nzira uye mhedzisiro yetambo yekutapurirana, kureba kwezvikamu zvina zvakasiyana zvinopihwa zvakateerana. kutungamira kweiyo yakakwira dhigirii refrequency equation, iyo frequency equation inogona kushandiswa kugadzira nyanga refu yewelding, asi maitiro ekugadzira akaomarara, Kusarudzwa kwemamwe ma paramita kunoenderana neruzivo uye haina kukodzera kunyorera engineering.Mubepa rino, iyo strip welding joint yakakamurwa kuita akati wandei akaenzana zvinhu nekukanika slotting, uye frequency equation yewelding joint element inowanikwa nekuchinjisa matrix nzira, iyo inopa hwaro hwekufungidzira hwekugadzirwa kweiyo strip welding joint.Dhizaini ine yakapusa theoretical kuverenga uye zviri pachena zvinoreva muviri, izvo zvinopa yakapusa uye iri nyore nzira yeinjiniya dhizaini yemutsetse.
welding joint.
Nguva yekutumira: Mar-17-2022