CNC milling ine simba uye inoshanda zvakasiyana machine kwacho iyo inobvumira kugadzirwa kwakanyatso uye kwakaoma chikamu. Nekudaro, imwe nyaya yakajairika iyo machinists anosangana nayo panguva yeCNC milling ndeyekutaura. Chatter, muchimiro chekugadzira, iko kuzununguka kusingafadzi kana oscillation kunoitika panguva yekucheka. Zvinogona kutungamira kune hurombo hwepamusoro kupera, kuderedzwa kwehupenyu hwematurusi, uye kunyangwe kukuvadzwa kumuchina. Mugwaro rino rakazara, isu tichaongorora zvinokonzeresa chatter muCNC milling uye nekupa huwandu hwakasiyana hwematipi uye matekiniki ekudzikisa zvinobudirira kana kubvisa.

Kunzwisisa Chatter in cNC hwokugaya hwakabvira

Chii chinonzi Chatter muCNC Milling?

Chatter, mumamiriro ezvinhu eCNC milling, chinhu chinovhiringidza uye chinokuvadza chinoitika panguva yekugadzira machining. Iyo inotaridza senge isingadiwe vibrate kana oscillation muchina chishandiso, workpiece, kana kucheka chishandiso. Chiitiko ichi chinowanzo onekwa neruzha rwakasiyana, rusingafadzi uye rinogona kuve nemhedzisiro yakakomba pakuita machining. Kuti tinzwisise chatter zvizere, ngatiparadzei zvikamu zvayo zvakakosha uye masimba.

Zvikamu zvakakosha zveChatter:

1. Machine Tool: Iyo CNC muchina chishandiso, inosanganisira yayo zvimiro zvemukati, spindle, uye kutakuras, inogona kukonzeresa kutaura kana isina kusimba kana isina kuchengetedzwa zvakanaka.
2. workpiece: Zvinhu zviri kugadzirwa uye zvimiro zvayo, sekuomarara uye kugadzirisa, zvinogona kukanganisa chatter.
3. Tooling: Sarudzo yekucheka maturusi, iwo geometry, mamiriro, uye zvinhu, inogona kuita basa rakakura mukuitika kwechatter.
4. Kucheka Parameters: Kusarudzwa kwekucheka maparamendi, kusanganisira chiyero chekudya, kukurumidza kucheka, uye kudzika kwekucheka, kunogona kukanganisa kugadzikana kwemaitiro ekugadzira.

Dynamics of Chatter:

Kukurukurirana kunoitika kana paine kusaenzana pakati pemasimba anoshanda pachigadziro chekucheka uye kushorwa kunopihwa neiyo workpiece zvinhu. Uku kusaenzana kunotungamira kukudengenyeka, izvo zvinogona kuguma nemhedzisiro yakaipa, kusanganisira:

• Musoro Wepamusoro Pedzisa: Chatter-induced vibrations inogona kusiya kumashure isina kujairika uye yakaoma pamusoro pekupedzisira pane iyo yakagadzirwa nemichina, ichideredza kunaka kwayo uye nemazvo.
• Yakaderedzwa Chishandiso Hupenyu: Iyo inogara, inokurumidza oscillations muchishandiso inogona kutungamira kune yakawandisa maturusi kupfeka uye zvakanyanya kupfupisa hupenyu hwayo.
• Machine Kukuvadza: Kuratidzwa kwenguva refu kune chatter kunogona kukanganisa kutendeseka kweCNC muchina pachayo. Nekufamba kwenguva, iyo yakaunganidzwa yemechani kushushikana inogona kutungamira kunodhura kugadzirisa uye kuderera.
• Kubudirira Kurasikirwa: Kukurukurirana kunowanzoda kuderedzwa kwekumhanya kwekucheka kana kudya kuderedza dambudziko, izvo zvinogona kukonzera nguva yakareba yekugadzira uye kuderedzwa kwese kubereka.

Nei Chatter Ichikosha

Kunzwisisa kuti nei chatter ichikosha kune chero CNC milling operation. Kunyangwe zvingaite senge zvinotsamwisa kana kusagadzikana, mhedzisiro yacho inoenda kure kupfuura izvozvo. Heino chikonzero nei chatter iri nyaya yekunetsa kukuru:

1. Hunhu hweChikamu Chakapera: Chatter inogona kukanganisa zvakanyanya kunaka uye kurongeka kwechikamu chakagadzirwa. Kana chinangwa chako chiri chekugadzira-yepamusoro-chatter, kutaura kunogona kuva chipingamupinyi chikuru.
2. Tool Life: Chatter-induced vibrations inogona kutungamira kukurumidza kupfeka maturusi uye kuparara. Izvi zvinoreva kuwedzera mari yekutsiviwa kwechishandiso uye kudzongonyedzwa kakawanda kune machining process.
3. Machine Kuvimbika: Kuratidzwa kwenguva refu kune chatter kunogona kukonzera kukanganisa kumuchina weCNC pachawo. Izvi zvinosanganisira kupfeka uye kubvarura pazvinhu zvemuchina, kukuvadzwa kwespindle, uye zvimwe zvinhu zvechimiro.
4. kwezvinhu: Chatter inomanikidza machinist kuderedza kumhanya kwekucheka uye mafidhi kudzivirira zvimwe zvinhu. Kunonoka uku kunoderedza kugadzirwa kwese uye kunogona kukonzera kunonoka kupedza mabasa emuchina.
5. Kudzivirirwa Kunetseka: Chatter inogona kutoisa njodzi yekuchengetedza mumusangano. Kudengenyeka uye kusagadzikana kwainogadzira kunogona kutungamira kune tsaona, ejection yekushandisa, kana kukuvara kweworkpiece.

Muchidimbu, chatter muCNC milling haingori ruzha runogumbura kana kunetsekana kwekunaka; idambudziko rinogona kuve nemhedzisiro yakakomba kune ese ari maviri emhando yezvikamu zvemuchina uye kugona kwese kwemaitiro ekugadzira. Neraki, kune akasiyana marongero uye matekiniki ekudzikisa kana kubvisa chatter, izvo zvatichaongorora zvakadzama muchinyorwa chino.

Chii chinonzi Machining Vibration?

Machining vibration, inowanzongonzi "vibration" mumamiriro ezvinhu ekugadzira machining, kufamba kusingafadzi uye kutenderera kana kutenderera kunoitika panguva yekucheka kana kugadzirwa kwezvinhu. Chiitiko ichi chinoratidza sekukurumidza kudzoka-uye-kufamba mafambiro, kazhinji muchimiro chekudedera, kudedera, kana oscillations, mumuchina chishandiso, workpiece, kucheka chishandiso, kana musanganiswa weizvi zvikamu. Machining vibration inyaya yakajairika mumachina akasiyana maitiro, anosanganisira kutendeuka, kugaya, kuchera, uye kugaya. Hunhu hwakakosha hwemachining vibration hunosanganisira:

1. Kusada Mafambiro: Vibration inomiririra kufamba kusingadiwe mumuchina system. Inogona kukonzera kusagadzikana, kukanganisa kurongeka uye kunaka kwezvikamu zvemichina.
2. Repetitive Oscillation: Vibration inowanzoitika pane imwe frequency kana frequencies, zvichitungamira kudzokorora kumashure-uye-mberi mafambiro. Aya maoscillations anogona kuoneka mukufamba kwechishandiso, chekucheka chishandiso, kana muchina wese.
3. Mheremhere: Kudengenyeka kunowanzo buritsa ruzha rwehunhu, rwunogona kuve mhedzisiro yezvikamu zvinofamba kana kudedera zvichipesana. Ruzha urwu runogona kushanda sechiratidzo chinonzwika chekudengenyeka.

Machining vibration inogona kuve neyakasiyana-siyana yakaipa mhedzisiro pane machining process, kusanganisira:

• Yakaderedzwa Surface Pedzisa: Vibration inogona kutungamira kune isina kuenzana kana isina kujairika pamusoro pekupedzisira pazvikamu zvemuchina, zvichikanganisa kunaka kwavo uye nemazvo.
• Hupenyu hweChishandiso chakapfupikiswa: Iko kukurumidza uye kusiri kujairika mafambiro ane chekuita nekuzunguzika anogona kukonzera kupfeka kwakanyanya uye kukuvara kwechishandiso, zvichitungamira kudiwa kwekugara kuchinje maturusi.
• Machine Wear uye Kukuvadzwa: Kuratidzwa kwenguva refu kune vibration kunogona kukurumidzira kupera uye kukuvadzwa kwezvinhu zvemuchina, zvinosanganisira spindles, mabhengi, uye zvimiro zvemuviri.
• Kusarurama uye Dimensional Kusiyana: Kudengenyeka kunogona kukonzera workpiece kana kutsauswa kwechishandiso, zvichikonzera kusarongeka uye misiyano yemhando yechigadzirwa chekupedzisira.

Machining vibration inopesvedzerwa nezvinhu zvakati wandei, zvinosanganisira kucheka ma paramita (semuenzaniso, chiyero chekudya, kukurumidza kucheka, uye kudzika kwekucheka), chishandiso geometry, workpiece zvinhu zvivakwa, kuoma kwemuchina, uye masimba eiyo machining system. Kudzikisa kana kubvisa vibration ivavariro yakakosha mukugadzira, sezvo ichigona kukanganisa zvakanyanya kunaka, kushanda zvakanaka, uye mutengo-kushanda kwemaitiro ekugadzira. Matanho akasiyana uye matekiniki, sezvakakurukurwa muzvikamu zvakapfuura, anoshandiswa kugadzirisa uye kudzikisira machining vibration, nekudaro achivandudza kuita kwese kwekuita kwemuchina.

Zvinokonzera Chatter

Chatter muCNC milling chinhu chakaoma chinopesvedzerwa nemusanganiswa wezvinhu. Kunzwisisa zvikonzero izvi kwakakosha pakugadzirisa nekudzikamisa kutaura. Izvi zvinhu zvinogona kukamurwa zvakanyanya muzvikamu zvina zvakakosha:

1. Machine Tool Factors

Hunhu uye mamiriro emuchina weCNC pachawo ndiwo anobatsira pakutaurirana. Zvinhu zvakati wandei zvine chekuita nemuchina zvinogona kukanganisa kuitika kwechatter:

a. Kuomarara:

Kuoma musoro inoreva kugona kwemuchina kuramba deformation kana kuchinjika panguva yekugadzira machining. Muchina wakaomesesa haunyanyi kutaura. Zvikamu zvemuchina, senge mubhedha wemuchina, makoramu, uye spindle, zvinofanirwa kugadzirwa uye kuvakwa zvine kusimba kwakanyanya mupfungwa. Kuoma kwemuchina kunovimbisa kugadzikana kwekucheka mamiriro, kuderedza mukana wekutaura.

b. Spindle Speed:

The chokurukisa kumhanya chinhu chakakosha pakudzora kutaura. Iyo yekumhanyisa kumhanya inofanirwa kufananidzwa zvakakodzera kune workpiece zvinhu uye yekucheka chishandiso chiri kushandiswa. Kushanda pane chaiyo spindle kumhanya kunobatsira kudzivirira kutaura nekuchengetedza yakagadzikana uye yakadzikama yekucheka maitiro.

c. Kuderedza:

Mimwe michina yeCNC inouya yakashongedzerwa neyakavakirwa-mukati damping systems yakagadzirirwa kutora vibrations panguva yekugadzira. Aya masisitimu ekunyorovesa anobatsira kuderedza chatter, kunyanya panguva yekumhanyisa machining mashandiro. Kuisa mari mumuchina une maficha ekunyorovesa epamusoro anogona kuve mhinduro inoshanda kuderedza kutaura.

d. Kururama uye Kurongeka:

Michina ine mazinga epamusoro e zvakarurama uye kururama kashoma kuti unzwe chatter. Iyo chaiyo yemuchina inovimbisa kuti inochengetedza inowirirana yekucheka mamiriro, kuderedza njodzi yekudengenyeka uye kusagadzikana panguva yekugadzira.

2. Workpiece Zvinhu

Iyo workpiece, kusanganisira zvinhu zvayo, saizi, uye kugadzirisa, inogona kukanganisa zvakanyanya chatter. Workpiece-inoenderana zvinhu zvinosanganisira:

a. Material Properties:

The zvivakwa ye workpiece zvinhu zvakakosha kufunga. Kuoma, density, uye kudziya kwekushisa kwezvinhu zvinopesvedzera kugona kwayo kutora uye kubvisa kupisa kunogadzirwa panguva yekugadzira. Izvi zvivakwa zvinogona kukurudzira kugadzikana kwekucheka mamiriro kana kutungamira kune chatter.

b. Workpiece Fixturing:

Kugadzirisa inoreva nzira iyo workpiece inosungirirwa zvakachengeteka kana kubatwa panzvimbo panguva yekugadzira. Kugadzirisa kwakakodzera kwakakosha kudzivirira chatter, sezvo chero kufamba kana vibration muworkpiece inogona kukanganisa nzira yekucheka. Kusunga zvakachengetedzeka iyo workpiece inovimbisa kugadzikana uye inoderedza njodzi yekutaura.

c. Overhang:

The overhang ndiyo chinhambwe pakati pechishandiso nechibatiso. Kurebesa kureba kunogona kukwidziridza chatter nekuda kwekuwedzera kwechishandiso kutsauka. Kuderedza kuwandisa kana kushandisa maturusi mapfupi kunogona kubatsira kudzikisira izvi.

3. Tooling Factors

Sarudzo yemidziyo yekucheka, mamiriro avo, geometry, uye zvinhu, inogona kukanganisa zvakanyanya chatter. Zvinhu zvine chekuita neTooling zvekufunga nezvazvo zvinosanganisira:

a. Tool Material:

Kusarudza zvakakodzera tool material zvichibva pane workpiece zvinhu zvakakosha. Zvinhu zvakasiyana-siyana zvinopa maitiro akasiyana-siyana ekudzivirira kupfeka uye kupisa kupisa. Iko kusarudzwa kwemidziyo yekushandisa kunogona kuderedza kupfeka kwechishandiso uye mukana wekutaura.

b. Tool Geometry:

The chishandiso geometry, kusanganisira nhamba yenyere, rake angle, uye helix angle, inogona kukanganisa masimba ekucheka uye, naizvozvo, kutaura. Zvishandiso geometries zvinopa zvirinani chip control uye kuderedza mauto ekucheka zviri nani kune chatter-prone zvinhu.

c. Tool Condition:

The mamiriro emidziyo yekucheka inoita basa rakakosha mukuitika kwechatter. Zvishandiso zvakasakara kana kukuvadzwa zvinowanzokonzera kutaura. Kugara uchiongorora maturusi uye kugadzirisa kwakakosha kuti uve nechokwadi chekuti maturusi ari muchimiro chakanyanya.

4. Kucheka Parameters

Kusarudzwa kwekucheka zvimiro, senge chiyero chekudya, kukurumidza kucheka, uye kudzika kwekucheka, kunobata zvakananga kuitika kwechatter. Kucheka-nechekuita parameter zvinhu zvinosanganisira:

a. Feed Rate:

An chiyero chekudya chisina kufanira iyo yakanyanya kukwirira inogona kutungamirira kumasimba ekucheka akawandisa uye, pashure, kutaura. Kuenzanisa chiyero chekudya nemamwe maparamita ekucheka kwakakosha kudzivirira kutaura.

b. Kucheka Speed:

The kuderedza kasi inofanira kusarudzwa nemazvo zvichibva pane zvinhu uye midziyo inoshandiswa. Kukurumidza kucheka kwakashata, kungave kwakanyanya kana kuderera, kunogona kukonzera kutaura. Iko kumhanyisa kwekucheka chaiko kunoenderana nezvinhu zvakaita semhando yezvinhu, chishandiso chemidziyo, uye chishandiso geometry.

c. Kudzika Kwekucheka:

The kudzika kwekucheka inokanganisa chip load uye masimba anoshanda pachishandiswa. Iyo yakadzika yekucheka inogona kuremedza chishandiso, ichitungamira kune vibrations uye chatter. Kudzikisa kudzika kwekucheka kunogona kubatsira kudzivirira kutaura, kunyanya kana uchigadzira zvinhu zvinonetsa. Kunzwisisa kupindirana kwezvinhu izvi uye maitiro azvo pakutaura kwakakosha pakugadzira nzira dzinoshanda dzekudzikisa kana kubvisa chiitiko ichi chinokuvadza panguva yekugaya CNC. Muzvikamu zvinotevera, tichaongorora nzira dzakasiyana siyana uye nzira dzakanakisa dzekudzikisa kutaura nekugadzirisa izvi zvinokonzeresa.

Maitiro ekudzikisa Chatter

Chatter muCNC milling inogona kuramba ichinetsa, asi kune akawanda anobudirira mazano uye matekiniki ekudzikisa kana kubvisa. Aya marongero anosanganisira kuvandudzwa kwezvishandiso zvemuchina, kugadzirira kwakaringana kwechishandiso, kusarudzwa kwezvishandiso uye kugadzirisa, optimization yekucheka paramita, hurongwa hwematurusi, nzira dzekudzikisa, uye kushandiswa kwekutarisa nekudzora masisitimu. Ngationgororei imwe neimwe yemaitiro aya zvakadzama:

1. Machine Tool Improvements

Kuvandudza CNC muchina pachayo inzira inoshanda yekudzikisa chatter. Heano dzimwe nzira dzekufunga nezvazvo:

a. Kukwidziridza kune Muchina Wakanyanya Kuoma:

Kana muchina wako wazvino uchishaya kuomarara uye kugadzikana, funga kukwidziridza kune imwe yakasimba. Muchina wakaomarara unodzikisira kutsauka uye unogona kunyatso kudzikamisa kudengenyeka panguva yekugadzira machining, kuderedza mukana wekutaura.

b. Damping Systems:

Mimwe michina inouya ine yakavakirwa-mukati damping systems yakagadzirirwa kutora mavibrations. Aya masisitimu anonyanya kubatsira mukudzikisa chatter panguva yekumhanya-mhanya machining. Kukwidziridza kumuchina une maficha ekunyorovesa epamusoro anogona kuderedza zvakanyanya kutaura.

c. Regular Machine Maintenance:

Kugara uchigadzirisa kwakakosha. Gara uchiongorora uye gadzirisa zvakakosha zvemuchina kuti uone kuti muchina unoshanda nemazvo. Izvi zvinosanganisira kutarisa nekusimbisa mabhaudhi, kuenzanisa spindle, uye kuchengetedza mamiriro ese emuchina.

2. Workpiece Kugadzirira

Kugadzirira kwakakodzera workpiece kwakakosha kudzivirira kutaura. Funga nezvematanho anotevera:

a. Secure Fixturing:

Ita shuwa kuti workpiece iri zvakasungwa zvakasimba kana kugadziridzwa kudzivirira chero kufamba kusingatarisirwe kana kudedera. Kugadzirisa kwakakodzera kwakakosha kuchengetedza kugadzikana panguva yekugadzira.

b. Kusarudzwa kwezvinhu:

Sarudzai mashoko akakodzera yeworkpiece yako zvichibva pane chaiyo machining zvinodiwa. Izvo zvinhu zvemukati, sekuoma uye kupisa conductivity, zvinogona kukanganisa chatter. Kusarudza zvinhu zvakakodzera zvinogona kukurudzira kugadzikana kwekucheka mamiriro.

c. Deredza Overhang:

Kureba kwepamusoro pakati pechishandiso nechishandiso chinogona kukwidziridza chatter nekuda kwekuwedzera kwechishandiso kutsauka. Kuderedza kuwandisa kana kushandisa maturusi mapfupi kunogona kubatsira kudzikisira izvi.

3. Tool Selection uye Maintenance

Sarudzo yekucheka maturusi uye mamiriro avo anokanganisa zvakanyanya chatter. Zvinhu zvine chekuita nemidziyo zvekufunga nezvazvo zvinosanganisira:

a. Tool Material:

Sarudza iyo optimal tool material zvichibva pane workpiece zvinhu. Zvinhu zvakasiyana-siyana zvinopa maitiro akasiyana-siyana ekudzivirira kupfeka uye kupisa kupisa. Iko kusarudzwa kwemidziyo yekushandisa kunogona kuderedza kupfeka kwechishandiso uye mukana wekutaura.

b. Tool Geometry:

Funga nezvazvo chishandiso geometry, kusanganisira nhamba yenyere, rake angle, uye helix angle. Yakakodzera maturusi majeometri anopa yakanaka chip control uye kuderedza kucheka masimba anodiwa kune chatter-prone zvinhu.

c. Regular Tool Maintenance:

Ita shuwa kuti maturusi ekucheka ari mukati mamiriro akanaka kuburikidza nekuongorora nguva dzose uye kugadzirisa. Zvishandiso zvakasakara kana kukuvadzwa zvinowanzokonzera kutaura. Kugadziriswa kwechishandiso kwakakodzera kunosanganisira kurodza, kugadzirisazve, uye shanduko yezvishandiso sezvinodiwa.

4. Optimal Cutting Parameters

Kusarudza maparamita akakodzera ekucheka kwakakosha kudzivirira kutaura. Kucheka-nechekuita parameter zvinhu zvinosanganisira:

a. Feed Rate:

Sarudza a chiyero chekudya chakakodzera iyo yakaenzana nemamwe maparameter ekucheka. Kunyanya kuwanda kwekudya kwekudya kunogona kukonzera kuwedzera masimba ekucheka uye kutaura. Rongedza mwero wekudya kuti uchengetedze machining akagadzikana.

b. Kucheka Speed:

The kuderedza kasi inofanira kusarudzwa nemazvo zvichibva pane zvinhu uye midziyo inoshandiswa. Kukurumidza kucheka kwakashata kunogona kukonzera kutaura. Iko kumhanyisa kwekucheka chaiko kunoenderana nezvinhu zvakaita semhando yezvinhu, chishandiso chemidziyo, uye chishandiso geometry.

c. Kudzika Kwekucheka:

The kudzika kwekucheka inokanganisa chip load uye mauto ekushandisa. Iyo yakadzika yekucheka inogona kuremedza chishandiso, ichitungamira kune vibrations uye chatter. Kuderedza kudzika kwekucheka kunogona kubatsira kudzivirira kutaura, kunyanya kana uchishanda nezvinhu zvinonetsa.

5. Toolpath Optimization

Kugadzirisa nzira yeturusi kunogona kuderedza kutaura nekudzivirira shanduko dzinongoerekana dzaitika mukucheka masimba. Chimbofunga nzira dzinotevera:

a. Trochoidal Milling:

Trochoidal milling inzira inosanganisira inodzorwa, inoenderera matoolpath mapatani izvo zvinogona kuderedza kutaura. Zvinosanganisira chishandiso chinotevera nzira yakatenderedzwa kana yakakombama pane kuita kucheka kwakatwasuka.

b. Climb vs. Conventional Milling:

Kusarudza pakati kukwira milling (apo mucheki anotenderera achienda kumafuro) uye kugaya kwakajairika (apo mucheki anotenderera achipesana negwara rekudya) anogona kukanganisa chatter. Climb milling kazhinji inoburitsa kutaura kushoma, sezvo ichideredza kukanganiswa kwemasimba ekucheka.

6. Damping Techniques

Kugadzirisa chatter panguva yekugadzira, nzira dzakasiyana dzekudzikisa dzinogona kushandiswa:

a. Tool Dampers:

Tool dampers zvinhu zvakanamirwa zvinogona kuwedzerwa kune mudziyo wekushandisa kuderedza vibrations uye chatter. Aya ma dampers anotora vibrations uye anovandudza kugadzikana kweiyo machining process.

b. Chatter-Resistant Toolholders:

Funga kushandisa zvibatiso zvakagadzirirwa chaizvo kuderedza kutaura. Aya maturusi anosanganisira matekinoroji ekunyorovesa ekusimudzira machining kugadzikana.

c. Machining Chatter-Resistant Insets:

Chatter-resistant inoisa inogona kuiswa kune yekucheka chishandiso. Izvi zvinoiswa zvakagadzirirwa kudzikisira mavibrations uye kuwedzera kugadzikana kwechishandiso.

7. Monitoring uye Control Systems

Kuti unyatso gadzirisa chatter, funga nezve kushandiswa kwekutarisa uye kutonga masisitimu:

a. Vibration Kuongorora Maitiro:

gadza vibration monitoring systems pamushini weCNC kuona chatter munguva chaiyo. Aya masisitimu anogona kugadzirisa otomatiki maparamendi kana nzira yekushandisa kuderedza chatter kana yaitika.

b. Adaptive Control Systems:

Adaptive control masisitimu anoshandisa chaiyo-nguva data kugadzirisa kucheka paramita uye toolpath zvine simba kudzivirira kutaura. Aya masisitimu anogona kushanda zvakanyanya mukuderedza kutaura.

c. Kucheka Simba Kuyera:

Kuyera uye kuongorora kucheka masimba panguva yekugadzira inogona kupa data yakakosha kubatsira kudzivirira kutaura. Nekunzwisisa masimba ari kutamba, zvigadziriso zvinogona kuitwa kuderedza vibration. Kushandisa aya mazano uye matekiniki kunogona kuderedza zvakanyanya kana kubvisa chatter muCNC milling, zvichitungamira kune yakavandudzwa chikamu chemhando, hupenyu hurefu hwematurusi, kuvimbika kwemuchina, uye kuwedzera kubereka. Pamusoro pezvo, nzira idzi dzinogona kuchinjirwa kuti dzienderane nezvinodiwa zvako CNC machining kushanda, kuita kuti kuderedzwa kwekutaura kuve chinangwa chinoshanda uye chinogoneka.

Mhedziso

Chatter muCNC milling inyaya yakakomba iyo inogona kukanganisa zvakanyanya kunaka, kunyatsoita, uye mutengo-kushanda kwemachining mashandiro. Kunzwisisa zvinokonzeresa chatter, zvinosanganisira muchina chishandiso zvinhu, zvine chekuita neworkpiece, zvinhu zvekushandisa, uye kucheka parameter kufunga, kwakakosha pakugadzirisa dambudziko iri zvinobudirira. Kudzikisira kana kubvisa chatter, machinists anogona kuita akati wandei matinji uye matekiniki:

• Machine Tool Kuvandudzwa: Kukwidziridza kumichina yakaomarara, kushandisa masisitimu ekunyorovesa, uye kuve nechokwadi chekugadzirisa nguva dzose kunogona kusimudzira kugadzikana kwemuchina uye kuderedza kutaura.
• Workpiece Kugadzirira: Kugadzirisa kwakaringana, kusarudzwa kwezvinhu, uye kuderedza overhang kunoita kuti workpiece kugadzikana uye kuderedzwa kutaura.
• Kusarudzwa kweTool uye Maintenance: Kusarudza zvekushandisa zvakanaka zvekushandisa uye geometries, pamwe nekuchengetedza maturusi ari muchimiro chakanaka, zvinogona kuderedza kutaura.
• Optimal Kucheka Parameters: Kugadzirisa mareti ekudya, kumhanya kwekucheka, uye kudzika kwekucheka kuchengetedza zvakadzikama masimba ekucheka kwakakosha mukuderedza kutaura.
• Toolpath Optimization: Kushandisa trochoidal milling nekusarudza kwakakodzera kugayo (kukwira kana kwakajairika) kunogona kubatsira kudzivirira kutaura.
• Damping Techniques: Kumisikidza madhiraivha emudziyo, zvibatiso zvinodzivirira kutaura, uye machining ekuisa akagadzirirwa kudzikisira kuzunguzika anogona kudzikisira kutaura.
• Monitoring uye Control Systems: Kushandisa vibration yekutarisa masisitimu, adaptive control masisitimu, uye yekucheka simba kuyerwa kunogona kuona uye kugadzirisa chatter munguva chaiyo.

Nekushandisa hurongwa uhu uye nekutarisa zvinodikanwa zve CNC milling mashandiro, machinists anogona kuderedza chatter neakaipa mhedzisiro, kusanganisira kushata kwepamusoro kupera, kuderedzwa kwehupenyu hwematurusi, kukuvara kwemuchina, uye kuderera kwechigadzirwa. Pakupedzisira, kudzikisira kutaura hakusi iko kudikanwa kwehunyanzvi chete asiwo nzira yekuwana kunyatsojeka, kunyatsoshanda, uye kuchengetedza mutengo muCNC milling. Neruzivo rwakakwana uye kuita kweaya mazano, machinists anogona kushanda kuti awane chatter-yemahara CNC milling mashandiro, vachigadzira emhando yepamusoro michina michina uku vachiwedzera hupenyu hwezvishandiso zvavo nemichina.