Maitiro ekugadzira welding fixture kuderedza roller chain deformation?

Maitiro ekugadzira welding fixture kuderedza roller chain deformation?

Mukugadzira cheni dzinotenderera, kupinza zvinhu muchina inzira yakakosha yekubatanidza zvinongedzo uye kuona kusimba kwecheni. Zvisinei, kuchinja kwekupisa panguva yekupinza zvinhu muchina kunowanzova dambudziko rinogara riripo, zvichikanganisa kunyatsoshanda kwechigadzirwa.cheni dzinotendererazvinogona kuratidza matambudziko akadai sekutsauka kwekubatanidza, kukwira kwenzvimbo kusina kuenzana, uye kushushikana kwecheni kusingawirirane. Matambudziko aya haangoderedzi kushanda zvakanaka kwekutumira chete asiwo anowedzera kupfeka, anopfupisa hupenyu hwebasa, uye anotokonzera kutadza kwemidziyo. Sechishandiso chakakosha chekudzora kuchinjika, dhizaini yemidziyo yekubatanidza inosarudza zvakananga mhando yemidziyo yekubatanidza yecheni yekubatanidza yeroller. Chinyorwa chino chichaongorora zvikonzero zvikuru zvekuchinja kwemidziyo yekubatanidza yeroller uye kutsanangura zvakarongeka maitiro ekuwana kudzora kuchinjika kuburikidza nekugadzira michina yesainzi, ichipa mhinduro dzehunyanzvi dzinoshanda kune vanoita zvekugadzira.

Kutanga, nzwisisa: Chii chinokonzera deformation ye roller chain welding?

Tisati tagadzira chinhu chakagadzirwa, tinofanira kutanga tanzwisisa chikonzero chikuru chekusagadzikana kwewelding yeroller chain—kusunungurwa kwekushushikana kunokonzerwa nekupisa kusina kuenzana uye kusakwana kwekudzora. Maroller chain link anowanzo kuve nemaplate ekunze nemukati, mapini, uye mabushing. Panguva yekusveta, kupisa kwenzvimbo kunonyanya kushandiswa pakubatana kwemaplate, mapini, uye mabushing. Zvikonzero zvikuru zvekusanduka kwesimbi panguva iyi zvinogona kupfupikiswa seizvi:

Kupararira kwekupisa kusina kuenzana: Kupisa kwakanyanya kunokonzerwa ne welding arc kunokonzera kukura nekukurumidza kwesimbi munzvimbo, nepo nzvimbo dzisina kupisa dzakapoteredza, nekuda kwekupisa kwadzo kwakaderera uye kuomarara kukuru, dzinoshanda sechipingamupinyi, dzichidzivirira simbi inopisa kuti isakure zvakasununguka uye ichigadzira kumanikidzwa kwekumanikidza. Munguva yekutonhora, simbi inopisa inogumira, iyo inodziviswa nenzvimbo dzakapoteredza, zvichikonzera kumanikidzwa kwekumanikidza. Kana kumanikidzwa kwapfuura poindi yekukohwa kwezvinhu, kuchinja zvachose kunoitika, senge ma links akakombama uye mapini asina kumira zvakanaka.

Kusakwana kwekunyatsorongeka kwenzvimbo yezvikamu: Kukwira kweroller chain uye kufanana kwelink zviratidzo zvikuru zvekunyatsojeka. Kana referensi yekumira kwezvikamu muchinhu chisina kujeka usati waisa welding uye simba rekusunga risina kugadzikana, zvikamu zvacho zvinogona kukanganisa lateral kana longitudinal nekuda kwekumanikidzwa kwekupisa panguva yekuisa welding, zvichikonzera kutsauka kwepitch uye kukanganisa link. Kusaenderana zvakanaka pakati pewelding sequence uye fixture: Kutevedzana kwewelding kusina kunaka kunogona kukonzera kuunganidzwa kwekupisa mu workpiece, zvichiwedzera deformation yenzvimbo. Kana chinhu ichi chikatadza kupa dynamic contraindications zvichibva pane welding sequence, deformation ichawedzera kuomarara.

Chechipiri, misimboti mikuru yekugadzira michina yekuwedera: kuisa zvinhu nemazvo, kugadzikana kwekubatanidza, uye kuchinjika kwekupisa.

Zvichienderana nehunhu hwemaroller cheni (zvinhu zvakawanda uye macheni matete, anochinja-chinja zviri nyore) uye zvinodiwa pakuwelding, dhizaini yechinhu inofanira kutevedzera misimboti mitatu mikuru yekudzora kushanduka kwechinhu panzvimbo yacho:

1. Unified Datum Principle: Kushandisa Core Accuracy Indicators sePositioning Datum

Kururama kukuru kwecheni dzinotenderera kunoenderana nepitch accuracy uye chain plate parallelism, saka dhizaini yekuisa fixture inofanira kutarisa pane zviratidzo zviviri izvi. Nzira yekare yekuisa "one-plane, two-pin" inokurudzirwa: pamusoro pecheni cheni inoshanda senzvimbo yekutanga yekuisa (inoganhurira madhigirii matatu erusununguko), uye mapini maviri ekutsvaga, anosangana nemaburi emapini (inoganhurira madhigirii maviri nerimwe erusununguko, zvichiteerana), kuwana nzvimbo yakakwana. Mapini ekutsvaga anofanira kugadzirwa nesimbi inodzivirira kupera (yakadai seCr12MoV) uye kudzimwa (kuomarara ≥ HRC58) kuve nechokwadi chekuti nzvimbo yacho yakarurama inoramba iripo kunyangwe mushure mekushandiswa kwenguva refu. Nzvimbo iri pakati pemapini ekutsvaga nemaburi emapini echeni cheni inofanira kuchengetwa pakati pe0.02-0.05mm kuti zvive nyore kubatanidza uye kudzivirira kufamba kwechikamu panguva yekusveta.

2. Nheyo yeKugadzirisa Simba Rinosunga: "Yakakwana uye Haikuvadzi"

Dhizaini yesimba rekubatanidza zvinhu zvakakosha pakudzivirira kukanganisika kwechinhu uye kudzivirira kukuvara. Simba rekubatanidza zvinhu zvakanyanya rinogona kukonzera kukanganisika kwepurasitiki kweplate yecheni, nepo kushoma kwazvo kuchigona kukanganisa kusvuta kwewelding. Zvinhu zvinotevera zvinofanirwa kutariswa pakugadzira:

Nzvimbo yekusunga inofanira kuiswa zvakakodzera: pedyo nenzvimbo yekusunga (≤20mm kubva pakusunga) uye iri munzvimbo yakaoma yeplate yecheni (senge pedyo nemupendero wegomba repini) kudzivirira kukotama kunokonzerwa nesimba rekusunga riri pakati peplate yecheni. Simba Rinogadziriswa reKusunga: Sarudza nzira yakakodzera yekusunga zvichienderana nehukobvu hwecheni (kazhinji 3-8mm) uye zvinhu (zvikuru simbi dzechimiro dzakaita se20Mn ne40MnB). Nzira idzi dzinosanganisira kusunga kwepneumatic (kwakakodzera kugadzirwa kwehuwandu, nesimba rekusunga rinogadziriswa kuburikidza ne pressure regulator, kubva pa5-15N) kana kusunga screw (kwakakodzera kugadzirisa small-batch, nesimba rekusunga rakagadzikana).
Kubata Kunochinjika: Gasket yepolyurethane (2-3mm ukobvu) inoiswa panzvimbo yekubata pakati pechivharo chekusunga necheni. Izvi zvinowedzera kukweshana uku zvichidzivirira chivharo chekusunga kuti chisapinde mukati kana kukwenya pamusoro pecheni.

3. Hunhu hwekubatana pakati pekupisa: Kufananidza kupisa pakati peClamp nemaitiro ekuwelding

Kuchinja kwewelding kunonyanya kukonzerwa nekupararira kwekupisa kusina kuenzana. Nokudaro, clamp inofanira kupa rubatsiro rwekuparadza kupisa, kuderedza kushushikana kwekupisa kuburikidza nenzira mbiri dze "kupisa kunopisa uye kupisa kunopisa." Pakudzora kupisa kunopisa, muviri wechinhu chinofanira kugadzirwa nezvinhu zvine kupisa kwakanyanya, zvakaita sealuminium alloy (thermal conductivity 202W/(m・K)) kana copper alloy (thermal conductivity 380W/(m・K)), zvichitsiva simbi yechinyakare (thermal conductivity 45W/(m・K)). Izvi zvinokurumidzisa kupisa munzvimbo yekushongedza. Pakuparadzanisa kupisa kunopisa, nzira dzemvura dzinotonhorera dzinogona kugadzirwa pedyo ne weld yechishandiso, uye mvura inotonhorera inotenderera (tembiricha yemvura inodzorwa pa20-25°C) inogona kuiswa kuti ibvise kupisa kwemuno kuburikidza nekuchinjana kwekupisa, zvichiita kuti workpiece inotonhorera ive yakafanana.

Chechitatu, Mazano Akakosha uye Ruzivo Mukugadzira Clamp Kuderedza Kushanduka kweRoller Chain

Zvichibva pamisimboti iri pamusoro apa, tinofanira kutarisa dhizaini yedu pazvimiro nemashandiro chaiwo. Nzira ina dzinotevera dzinogona kushandiswa zvakananga mukugadzira chaiko:

1. Modular Positioning Structure: Inogona Kugadziriswa kune Magadzirirwo Emaroller Chain Akawanda, Ichiita Kuti Positioning Irambe Yakabatana

Macheni eroller anouya nenzira dzakasiyana-siyana (semuenzaniso, 08A, 10A, 12A, nezvimwewo, ane mapitch anotangira pa12.7mm kusvika 19.05mm). Kugadzira fixture yakasiyana yechinhu chimwe nechimwe kwaizowedzera mari nenguva yekuchinja. Tinokurudzira kushandiswa kwezvikamu zvemodular positioning: Mapini epositing nemablocks akagadzirwa kuti atsiviwe uye akabatana nechigadziko chefixture kuburikidza nemabolts. Paunenge uchichinja specifications, ingobvisa chikamu chekare chepositing woisa chitsva chine pitch inoenderana, zvichideredza nguva yekuchinja kusvika pasi pemaminitsi mashanu. Uyezve, datums dzepositing dzezvikamu zvese zvemodular dzinofanira kuenderana ne datum surface yechigadziko chefixture kuti ive nechokwadi chekuti positioning inoenderana ne roller chains dzemhando dzakasiyana.

2. Dhizaini yeZvipingamupinyi Zvakafanana: Kugadzirisa "Kudyidzana" kweStress yeWelding

Kubatanidza maroller chain kunowanzo sanganisira zvivakwa zvakafanana (semuenzaniso, kusanganisa pini kune chainplate mbiri panguva imwe chete). Nokudaro, chigadzirwa chinofanira kushandisa dhizaini yakafanana yekudzora kuderedza kuchinjika nekubvisa kumanikidzwa. Semuenzaniso, panguva yekusanganisa maroller chainplate maviri nepini, chigadzirwa chinofanira kuiswa zvakaenzana nemidziyo yekuisa marongerwo uye michina yekubatanidza kumativi ese echeni kuitira kuve nechokwadi chekuti kupisa kwewelding kunopinda zvakanaka uye simba rekudzivirira. Uyezve, bhokisi rekutsigira rinogona kuiswa pakati pecheni, richikweshwa neplane yemacheni, kuderedza kushushikana kwekukotama pakati panguva yekusanganisa. Ruzivo rwakakosha runoratidza kuti dhizaini yakafanana yekudzora inogona kuderedza kutsauka kwepitch mumacheni anotenderera ne30%-40%.

3. Kubatanidza Kutevera Kwakasimba: Kujaira Kuchinja Kwekupisa Panguva Yekunamira

Panguva yekusonera, workpiece inoshanduka zvishoma nezvishoma nekuda kwekuwedzera kwekupisa uye kudzikira. Nzira yekusonera isina kugadziriswa inogona kutungamira muhuwandu hwekushushikana. Nokudaro, chigadzirwa chinogona kugadzirwa nenzira yekutevera inochinja: sensor yekusonera (senge sensor yekusonera laser ine kururama kwe0.001mm) inotarisa kuchinja kweplate yecheni munguva chaiyo, ichitumira chiratidzo kune system yekudzora yePLC. Mota yeservo inobva yatyaira block yekusonera kuti igadziriswe zvishoma (ine huwandu hwekugadzirisa hwe0-0.5mm) kuchengetedza simba rakakodzera rekusonera. Dhizaini iyi yakakodzera zvakanyanya pakusonera cheni dzeroller dzakakora (ukobvu ≥ 6mm), zvichidzivirira kutsemuka kwecheni kunokonzerwa nekushanduka kwekupisa.

4. Kudzivirira Kupinza Welding uye Kutungamira Dhizaini: Inovimbisa Nzira Yakarurama Yekupinza Welding uye Inoderedza Nzvimbo Inokonzerwa Nekupisa
Panguva yekusonera, kururama kwenzira yekufamba kwepfuti yekusonera kunokanganisa zvakananga kunaka kwesimbi uye kupisa kwainopinda. Chigadziko chinofanira kunge chakashongedzerwa negomba rekudzivirira weld seam uye gwara repfuti yekusonera. Mugero wekudzivirira wakaita seU (wakafara 2-3mm kupfuura mugero weweld uye wakadzika 5-8mm) unofanirwa kugadzirwa pedyo nemugero wekudzivirira weld kudzivirira kupindirana pakati pesimbi nepfuti yekusonera. Uyezve, gwara rekutungamira rinofanira kuiswa pamusoro pesimbi kuitira kuona kuti pfuti yekusonera yafambiswa zvakaenzana munzira yakatarwa (kumhanya kwesimbi kwe80-120mm/min kunokurudzirwa), zvichiita kuti weld irambe yakatwasuka uye kupisa kwakafanana. Zvinhu zveceramic insulation zvinogonawo kuiswa mugomba rekudzivirira weld kuti isakuvadze chinhu chacho.

Chechina, Kugadzirisa uye Kusimbisa Fixture: Closed-Loop Control kubva paKugadzira kusvika paKushandisa

Dhizaini yakanaka inoda kugadziriswa uye kusimbiswa isati yanyatsoitwa. Matanho matatu anotevera anogona kuve nechokwadi chekuti chigadzirwa chacho chinoshanda uye chakavimbika:

1. Kuongorora Kufananidza Kwezvinhu Zvakakwana: Kufanotaura Kuchinja Kwemamiriro Ezvinhu uye Kugadzirisa Chimiro

Pamberi pekugadzirwa kwezvishandiso, kutevedzera kwekubatanidza kwemafuta nehurongwa hwemagetsi kunoitwa uchishandisa software ye finite element senge ANSYS ne ABAQUS. Kuisa ma roller chain material parameters (senge thermal expansion coefficient uye elastic modulus) uye ma welding process parameters (senge welding current ye180-220A uye voltage ye22-26V) kunotevedzera tembiricha nekugoverwa kwekumanikidzwa mu fixture ne workpiece panguva ye welding, zvichifanotaura nzvimbo dzinogona kuchinjika. Semuenzaniso, kana simulation ichiratidza kuchinjika kwakanyanya pakati pe chain plate, rutsigiro rwakawedzerwa runogona kuwedzerwa kunzvimbo inoenderana mu fixture. Kana kumanikidzwa kwakawanda kukaitika pa locating pin, pin's fillet radius inogona kugadziriswa (R2-R3 inokurudzirwa). Simulation optimization inogona kuderedza mari ye trial-and-error ye fixture uye kupfupisa development cycle.

2. Kuongororwa kweWeld yeKuedza: Kuedzwa kweBatch Diki uye Kugadziriswa Kunodzokororwa

Mushure mekunge chigadzirwa chagadzirwa, ita ongororo yeweld yekuedza kwechikamu chidiki (inokurudzirwa: zvidimbu 50-100). Tarisa pane zvinotevera zviratidzo:

Kururama: Shandisa maikorosikopu yezvishandiso zvepasi rose kuyera kutsauka kwepitch (inofanira kuva ≤0.1mm) uye kufanana kwechain plate (inofanira kuva ≤0.05mm);

Kuchinja: Shandisa muchina wekuyera kuti utarise kutsetseka kweplate yecheni uye kuenzanisa kuchinjika kwacho usati wabatanidza uye wapedza kusanganisa;

Kugadzikana: Mushure mekusundira zvidimbu makumi maviri nguva dzose, tarisa kuti mapini nemabhuroko ekubatanidza ari papini yacho kana kuti haasi kushanda zvakanaka uye iva nechokwadi chekuti simba rekubatanidza rakagadzikana.

Zvichibva pamhedzisiro yekuyedza kweweld, kugadziriswa kunoitwa kakawanda kune chinhu chacho, senge kugadzirisa simba rekubatanidza uye kugadzirisa nzvimbo yekutonhodza, kusvika chasangana nezvinodiwa zvekugadzirwa kwehuwandu.

3. Kugadzirisa uye Kugadzirisa Zuva Nezuva: Kuve nechokwadi chekuti zvinhu zvichafamba zvakanaka kwenguva refu

Mushure mekunge chigadzirwa chatanga kushanda, sisitimu yekugadzirisa nekugadzirisa nguva dzose inofanira kuiswa:

Kugadzirisa Zuva Nezuva: Chenesa madonhwe esimbi anotsvedza uye mavara emafuta kubva pamusoro pechinhu chinobatidza, uye tarisa kana paine madonhwe ari mumhepo/hydraulic systems dzechinhu chinobatidza.

Kuenzanisa kweVhiki Nevhiki: Shandisa magauge blocks uye dial indicators kuti uongorore kurongeka kwenzvimbo yemapini ekutsvaga. Kana kutsauka kwakapfuura 0.03mm, gadzirisa kana kutsiva nekukurumidza.

Kuongorora Kwemwedzi Nemwedzi: Tarisa migero yemvura inotonhodza kuti haina kuvharika here uye dzorera magaskets epolyurethane akasakara uye uwane zvikamu.

Kuburikidza nekugadzirisa kwakajairika, hupenyu hwechinhu chacho hunogona kuwedzerwa (kazhinji kusvika makore 3-5), zvichiita kuti chigone kudzora kuchinjika kwechinhu panguva yekugadzirwa kwenguva refu.

Chechishanu, Chidzidzo Chenyaya: Maitiro Ekuvandudza Zvishandiso Pakambani Yemichina Inorema

Mugadziri wecheni dzinorema dzinoshandiswa mumichina yekuchera matombo (dzinoshandiswa mumichina yekuchera matombo) aisangana nematambudziko ekukanganiswa kwakanyanya (≥0.3mm) mumaketani echeni mushure mekusveta, zvichikonzera huwandu hwekukodzera kwechigadzirwa hwe75% chete kuburikidza nekuvandudzwa kunotevera kwezvishandiso, huwandu hwekupasa hwakawedzera kusvika 98%:

Kuvandudzwa kwenzvimbo: Pini yekutanga yekutsvaga imwe chete yakatsiviwa ne "double pin + flat surface" positioning system, zvichiita kuti nzvimbo yacho iderere kusvika pa 0.03mm uye kugadzirisa dambudziko re "part offset";

Kugadzirisa kupisa: Muviri wechinhu chacho wakagadzirwa nemhangura uye une nzira dzekutonhodza, zvichiwedzera mwero wekutonhodza munzvimbo yekuweld ne40%;

Kubata zvine simba: Sensor yekutama uye sisitimu yekubata yeservo zvakaiswa kuti zvigadzirise simba rekubata panguva chaiyo kudzivirira kushushikana;

Zvirambidzo zveSimmetrical: Zvibatiso zveSimmetrical clamping uye zvibatiso zvekutsigira zvinoiswa kumativi ese echeni kuti zvidzivirire kushushikana kwewelding.

Mushure mekuvandudzwa, kutsauka kwepitch yeroller chain kunodzorwa mukati me 0.05mm, uye kukanganisa kuri ≤0.1mm, zvichizadzisa zvizere zvinodiwa nemutengi zvine hungwaru.

Mhedziso: Dhizaini yemidziyo ndiyo "nzira yekutanga yekudzivirira" mhando yeroller chain welding.

Kuderedza kuchinja kwe roller chain welding hakusi nyaya yekugadzirisa danho rimwe chete, asi maitiro akarongeka anosanganisira kuisa, kusungira, kupisa, kugadzirisa, uye kugadzirisa, nekugadzirwa kwe welding fixture kuri chinhu chikuru. Kubva pachimiro chakabatana chekuisa, kusvika pakugadzirisa simba rekusunga, kusvika pakugadzirwa kunochinjika kwekutevera kunochinjika, zvese zvine chekuita zvakananga nemhedzisiro yekuchinja.