Indlela Yokufinyelela Ukucindezela Okuqondile Ngomshini Wokucindezela Oshisayo we-Servo

Iumshini wokucindezela oshisayo we-servoifinyelela ukucindezela okunembile ngokusebenzisana komklamo wokunemba kwehadiwe, uhlelo lokulawula oluhlakaniphile, kanye nokwenza ngcono izinqubo. Okulandelayo izindlela zobuchwepheshe eziyinhloko kanye nezindlela zokusebenzisa:

1. Isiqinisekiso Esinembile Sesistimu Yehadiwe

1) Uhlelo lokushayela lwe-Servo motor 

Ukulawula amandla okunembe kakhulu:

 Kusetshenziswa ama-servo motors aqhutshwa ngqo (njengemikhiqizo yaseJapan Yaskawa kanye nePanasonic), ukunemba kokubeka kufinyelela ku-±0.01mm, kanti ukunemba kokuphindaphinda kungu-±0.005mm.

 Injini ishayela ngqo ipuleti lokucindezela ngokusebenzisa isikulufu sebhola noma umhlahlandlela oqondile ukuze kuncishiswe ukubambezeleka “kokuxhumeka okuthambile” kohlelo lwendabuko lwe-hydraulic (isikhathi sokuphendula kohlelo lwe-hydraulic singama-100ms, kanti uhlelo lwe-servo lungaphansi kwama-20ms).

 Ukulawula i-pressure closed-loop:

 Inzwa yokucindezela enembile kakhulu eyakhelwe ngaphakathi (ukunemba ±0.1% FS), impendulo yesikhathi sangempela yenani lokucindezela kumlawuli, yakha iluphu evaliwe ethi “inani elibekiwe → ukuphuma kwenjini → impendulo yokucindezela → ukulungiswa okuguquguqukayo”, okuqinisekisa ukuthi ukushintshashintsha kwengcindezi kungu-≤±1%.

2) Imodyuli yokulawula izinga lokushisa

 Ubuchwepheshe bokulawula izinga lokushisa obuzimele obunezindawo eziningi:

Ipulatifomu yokushisa isebenzisa ipuleti lokushisa le-ceramic + isakhiwo sesinki sokushisa, ngokulawula izinga lokushisa lendawo (izindawo ezi-3, izindawo ezi-5, noma izindawo ezenziwe ngokwezifiso), futhi umehluko wokushisa phakathi kwendawo ngayinye ungu-≤±1℃.

Ibanga lokulawula izinga lokushisa: -20℃ ~ 450℃ (kuye ngokuthi imodeli ihlelwe kanjani), izinga lokushisa lingalungiseka kusukela ku-0.1~20℃/s, futhi lisekela ukushisa kwe-ramp kanye nokugcinwa kwezinga lokushisa njalo kwezinhlelo eziningi.

 Ukuqapha izinga lokushisa ngesikhathi sangempela:

 I-thermocouple yohlobo lwe-K eyakhelwe ngaphakathi noma i-thermometer ye-infrared, iqoqa idatha yokushisa njalo ngemizuzwana engu-0.5, futhi ilungisa amandla ngokuguquguquka nge-algorithm ye-PID.

3) Ukulungiswa kwesakhiwo semishini

Ukwakheka kohlaka oluqinile kakhulu:

Sebenzisa uhlaka oluhlanganisiwe lokuphonsa oluthi “C-type” noma “gantry-type” (insimbi ephonswe nge-HT300), ngemva kokwelashwa kokuguga ukuze ususe ukucindezeleka kwangaphakathi, ukuqina ≥ 200N/μm, wehlise ukuguquguquka kohlaka ngesikhathi sokucindezela (ukuguquguquka kokucindezela kwe-hydraulic kwendabuko cishe ku-0.1 ~ 0.3mm, imodeli ye-servo <0.05mm).

Ipheya le-kinematic elinokuguquguquka okuphansi:

Isitimela esiqondisayo sisebenzisa isitimela esiqondisayo se-THK linear noma isikulufu sokunemba se-PMI, ngohlelo lokuthambisa oluzenzakalelayo (ukunikezwa kukawoyela okuzenzakalelayo ngezikhathi zemizuzu emi-5 kuya kwengama-30), i-friction coefficient ≤ 0.0015, ukuqinisekisa ukuphakamisa nokwehlisa ipuleti lokucindezela okubushelelezi.

2. Ukulawulwa Okunembile Kwezinhlelo Zokulawula Ezihlakaniphile

1) I-algorithm yokulawula ukuxhumanisa kwe-Multi-axis

 Ukulawula ukuxhumanisa kokucindezela-ukufuduka-nokushisa:

 Nge-PLC noma isilawuli sokunyakaza (njenge-Siemens S7-1500, i-Huichuan AM600), ukulawulwa okuvumelanayo kwamapharamitha amathathu kuyafezeka:

 Imodi yokubeka phambili ingcindezi: setha ingcindezi eqondiwe, bese ukufuduka kulungiswa ngokuzenzakalelayo ngokucindezelwa kwezinto (kusebenza ezintweni ezinwebekayo).

 Imodi yokubeka phambili yokuthutha: ikhawulela ukushaywa kokucindezela, futhi ingcindezi ifaniswa ngokuzenzakalelayo namandla okuxhumana (okusebenza ezintweni eziqinile).

 Imodi exubile: ukulawulwa kokushintshana kwengcindezi okuhlukaniswe ngezigaba (njengokufuduka okusheshayo kuqala, bese kuba ukulungiswa kwengcindezi).

 I-algorithm yokulwa nokudubula ngokweqile:

 Uma isondela ekucindezelweni/ekufudukeni okuqondiwe, ishintshela ngokuzenzakalelayo kwimodi yesivinini esiphansi (5mm/s kuya ku-0.1mm/s). Isebenzisana nomsebenzi wokubhuleka oguquguqukayo wemoto ye-servo ukuze igweme ukushaqeka okungenamandla (ukudubula ngokweqile <0.5% wenani elibekiwe).

2) Ukubona ngeso lengqondo kanye nokulandeleka kwamapharamitha enqubo

 Isixhumi esibonakalayo somshini womuntu (HMI):

Isikrini sokuthinta esingu-10~15-intshi, sisekela ukuhlela uhlelo lokucindezela olunezigaba eziningi (njengokuhlanganiswa kwesikhathi sokucindezela nokushisa esingafika ku-50), futhi ipharamitha ngayinye ingasethwa ngokuzimela (njengokucindezela okungu-10~500kN, isikhathi sokubamba esingu-1~300s).

 Ukuboniswa kwesikhathi sangempela kwejika lokushisa lokucindezela, ukusekelwa kokuthunyelwa kwedatha yedrayivu ye-USB flash noma ukufakwa kwe-docking ngesistimu ye-MES, ukuze kufezwe ukulandeleka kwenqubo (ukunemba kokugcinwa kwedatha: ingcindezi engu-0.1kN, izinga lokushisa elingu-0.1℃, isikhathi esingu-1s).

3) Ukubikezela amaphutha kanye nendlela yokubuyisela

Umsebenzi wokubuyisela amandla:

Uma ukuguquguquka kwengcindezi kudlula ±3%, uhlelo luqala ngokuzenzakalelayo i-torque yenjini yesinxephezelo futhi lubuyisele inani elibekiwe ngaphakathi kwama-20ms (isinxephezelo sokucindezela kwe-hydraulic sendabuko sidinga okungaphezu kwama-500ms).

Umkhawulo we-alamu ongavamile:

Ungenza ngokwezifiso imikhawulo ephezulu nephansi yokucindezela/yokushisa (njengomkhawulo ophezulu wokucindezela ongu-110% FS, umkhawulo ophansi wokushisa - 10℃), bese umshini uzovala ngokuzenzakalelayo futhi uzwakale futhi ukhanyise i-alamu uma umkhawulo usudluliwe.

3. Ukuhlelwa kahle kwesikhunta kanye nenqubo

1) Ukucubungula nokuhlola isikhunta ngokunemba

Izidingo zokunemba kobuso:

Ubulukhuni bomphezulu wesikhunta i-Ra≤0.8μm, ubuthafa ≤0.005mm/m, buhlolwe ngomshini wokulinganisa onama-three-coordinate (CMM) ukuqinisekisa amandla afanayo ngesikhathi sokucindezela.

 Umklamo we-buffer onwebekayo:

Isikhunta sifakwe i-polyurethane buffer pad (i-hardness Shore 50~80A) noma idivayisi entantayo eqhutshwa umoya ukuze ilungise ukubekezelelana kobukhulu bezinto (njenge-±0.1mm) futhi igweme ukucindezela ngokweqile kwendawo.

Lokhu okungenhla kunezindlela eziningana zokufinyelela ukucindezela okunembile nge-servo hotimishini yokucindezela i-hydraulicUma udinga umshini wokucindezela oshisayo onembe kakhulu, sicela usithinte.