Ucingo: +86 0769 82886112 Blog Imibuzo Evame Ukubuzwa Ividiyo

Isicelo Technology Of High-Precision Futhi High-Speed Machining

2021-08-13

Isicelo Technology Of High-Precision Futhi High-Speed Machining

Ukusetshenziswa kwesivinini esisheshayo kudinga iyunithi lokuphotha elihamba ngesivinini esikhulu kanye neyunithi yokuphakela ithuluzi lomshini wesivinini esikhulu. Ukuphakelwa kwamanani aphezulu kudinga nokusheshisa okuphezulu. Isibonelo, ukushaywa kwethuluzi lomshini wejubane eliphezulu kuvame ukuba phakathi kuka-500 no-1 000mm. Uma inani lokuphakelayo kwethuluzi lomshini lenyuswa lisuka ku-zero laya ku-40m / min ngaphakathi kwebanga elifushane kangaka, inani lokusheshisa kokuphakelayo kwethuluzi lomshini kufanele lidlule i-1g (9.8m / s2). ).

Lapho ucubungula izindawo ezigobile, ukusheshisa kokuphakelayo kubaluleke kakhulu. Ukushesha kwayo kuyalingana nesikwele sezinga lokuphakelayo. Uma imoto ye-servo ingakwazi ukukhiqiza ukushesha ngokwanele, ayikwazi ukwenza isivinini esikhulu,ukulungisa okucacile. Njengamanje, main umphini iyunithi isebenzisa kakhulu i-vector-elawulwa ngama-AC asynchronous motors. Ngenxa yokushisa kwe-Rotor ye-motor asynchronous, i-high-speed spindle motor enokupholisa kwangaphakathi manje nayo iyasetshenziswa; ngaphezu kwalokho, isakhiwo semoto ehambisanayo nayo iyafundwa. Ukuze kuzuzwe isivinini esikhulu sokuphakelwa kokuphakelayo (ukuncipha), ama-motors aqondile asetshenziswe kakhulu. Lapho imishini eshesha kakhulu, izindaba zokuphepha zibaluleke kakhulu. Ngoba amachips asemishinini enejubane adutshulwe njengenhlamvu, izidingo zokuphepha zohlelo ziphakeme kakhulu.

Isicelo Technology Of High-Precision Futhi High-Speed Machining. -PTJ I-CNC MACHINING Shop

Uhlelo lwe-CNC luguqula uhlelo lwengxenye yokufaka lube yi-trajectory yomumo, isilinganiso sokuphakelayo nolunye ulwazi lomyalo okufanele lucutshungulwe, futhi ngokuqhubekayo lithumela umyalo wesikhundla ku-eksisi ngayinye ye-servo. Ukuze kutholwe isivinini esikhulu nokunemba okuphezulu, i-CNC kufanele ikhethe isilinganiso esiphakelayo esihle kakhulu ngokuya ngomumo wendlela yengxenye yemishini, futhi ikhiqize umyalo wokuma ngezinga eliphakeme kakhulu lokuphakelayo ngaphakathi kokunemba okuvumelekile. Ikakhulukazi emakhoneni nakuma-radii amancane, i-CNC kufanele ikwazi ukunquma ukuthi zingaki izinguquko zemishini ezosithinta ukunemba, futhi ngaphambi kokuthi ithuluzi lifinyelele lapho, ijubane elithungathekile lethuluzi liyehla ngokuzenzakalela. Okwembumbulu machining, ingxenye yohlelo ejwayelekile incane kakhulu, kepha uhlelo lude kakhulu, ngakho-ke izindlela ezikhethekile zokulawula kufanele zisetshenziselwe ukufeza ukucubungula okuphezulu nokushesha kakhulu. Uhlelo lwe-servo ludinga idrayivu enembile futhi esheshayo ukuze icubungule izingxenye ezisebenza ngokunemba okuphezulu ngejubane elikhulu. Ngalesi sizathu, uhlelo lwe-servo kumele lube namandla okuphendula ngokushesha futhi lucindezele ukuphazamiseka. Ngasikhathi sinye, uhlelo lwe-servo akumele ludlidlize futhi luqede ukugqama ngethuluzi lomshini.

Izidingo ze-CNC yokwenza imishini ephezulu kakhulu nokunemba ngesivinini kungafingqwa ngale ndlela elandelayo:

(1) Ingacubungula amabhlogo ngejubane elikhulu.
(2) Ukuhamba kolwazi kungacutshungulwa futhi kulawulwe ngokushesha nangokunemba ukunciphisa iphutha lokuchofoza.
(3) Inganciphisa umthelela womshini futhi yenze ithuluzi lomshini lihambe kahle.
(4) Kufanele ibe nomthamo owanele wokuvumela izinhlelo ezinkulu zemishini yokusebenza ngejubane elikhulu; noma unekhono lokudlulisa inani elikhulu lemininingwane ngenethiwekhi.
(5) Ama-servo motors, izinjini zokuphotha nezinzwa ezinokulungiswa okuphezulu nokusebenza ngejubane eliphezulu.
(6) Ngoba icutshungulwa ngejubane elikhulu, ukuthembeka nokuphepha kubaluleke kakhulu.

Imisebenzi yesivinini esiphezulu nokunemba kakhulu ifaka phakathi lezi zici ezilandelayo:

1. Ukulawulwa kwe-Feedrate nokusheshisa (ukunciphisa) imisebenzi yokufaka imishini (kufaka phakathi imishini yokuncipha ekhoneni): Iphutha ekusetshenzisweni kwejubane elikhulu kubangelwa ukusilela kwesistimu yokulawula (ukuncipha) kanye nokusalela kohlelo lwe-servo. Ngakho-ke, uhlelo lokulawula kufanele luzame ukunciphisa amaphutha kulezi zici ezimbili. Isibonelo, ukulawula okuphakelayo kusetshenziselwa ukunciphisa amaphutha adalwe yi-servo lag. Sebenzisa ubuchwepheshe be-digital servo ukuthuthukisa ukulawulwa kwe-servo. Ngenxa yokusetshenziswa kobuchwepheshe be-digital servo, ukuzuza kwejubane nokuthola isikhundla kohlelo lwe-servo kungathuthukiswa, ngaleyo ndlela kuncishiswe iphutha elibangelwe yi-servo lag. Yehlisa iphutha elibangelwe ukushesha (kwehlisa) isivinini esisele. Ngo machining ngesivinini, ukushesha (deceleration) kanye feed rate kukhona nemingcele ebaluleke kakhulu. Kuphela ngokulawula ngokuqinile ukusheshisa (ukuncipha) kanye nesilinganiso sokuphakelayo ezinhlotsheni ezahlukahlukene zemishini lapho isivinini esikhulu inqubo machining ukugcwaliseka. Izinga elikhulu lokuphakelayo lizokhiqiza amaphutha amakhulu ngenkathi kuguquka uhlelo, njengamakhona. Ukuze kuzuzwe ukusheshisa okusheshayo, izinga lokuphakelayo kufanele lilawulwe. Ngaphezu kwalokho, ukusebenzisa ukusheshisa (ukunciphisa) ngaphambi kokufakwa ngaphakathi kunganciphisa nephutha elibangelwe ukushesha (ukuncipha) okusasele.
2. Ukulawula okubheka phambili. Uma i-feedrate nokusheshisa nokuncipha kwe-pre-pre-kubalwa ngezindlela ezahlukahlukene zokumaketha, uhlelo lwe-CNC lungabala kuqala ukuhamba kwe-trajectory nejubane le-Motion; okusho ukuthi, cubungula kuqala uhlelo oluzokwenziwa, ngokusho kwe-feedrate eshiwo ngenhla nezindlela zokusheshisa nezokwehlisa, bala kuqala i-feedrate nokusheshisa nokuncipha kwezinye izingxenye zohlelo, bese ubala ukunyakaza I-traometory yejometri lapho kuthunyelwe kusigcini sesigaba esiningi. Lapho kusebenza, ithuluzi lihamba kufayela le- imishini yokunciphisa isivinini esikhulu ngejubane elithile, kepha iphutha lesimo semishini lincane. Lesi yisimiso "sokulawula phambili", kwesinye isikhathi esibizwa ngokuthi "ukulawula phambili" kanye "nokulawula phambili".
3. Usebenzisa ukusatshalaliswa kwejubane kwe-buffer eyihlane nokusebenza kwe-DNC, kuyadingeka ukuthi udlulise ngokushesha uhlelo kusuka esigungwini sokufaka luye ohlelweni lwe-CNC lwezingxenye zemishini ezakhiwe ngenani elikhulu lezinhlelo. Ngemuva kokuthi i-CNC ifunde uhlelo, ibala imininingwane yohlelo, ikhiqize i-pulse yokusabalalisa ye-eksisi ngayinye, bese iyithumela ohlelweni lwe-servo ukwenza i-servo motor isebenze. Isikhathi sokwenza i-pulse eyabiwe (isikhathi semishini yengxenye yohlelo) siyisici esibalulekile ekusebenzeni kwe-CNC. Ngokwengxenye yohlelo, ukusebenza kwe-DNC kwejubane elikhulu kuvumela (kusetshenziswa amabhafa akude) isikhathi esidingekayo sokwenza i-pulse yokusabalalisa sinciphile kakhulu. Lo msebenzi ufinyeza ishayela lokusabalalisa lokukhiqiza ibhlokhi, ngaleyo ndlela kuqinisekiswe ukuthi uhlelo olwakhiwe ngochungechunge lwamabhulokhi amancane alumi phakathi kwamabhulokhi. Isibonelo, lapho kwenziwa ukusebenza kwe-DNC, uhlelo olwakhiwe ngochungechunge lwamabhulokhi we-1mm (3-axis linear interpolation) lungasebenza ngejubane lama-60m / min, futhi ukwabiwa okwabiwe ngeke kuphazanyiswe. Ngenxa yokusetshenziswa kwe-buffer function ekude, ukufakwa kwedatha enejubane kuyagcwaliseka, okuqinisekisa futhi ukusetshenzwa kwejubane elikhulu.
4. Thuthukisa ukulungiswa kwesistimu. Isibonelo, umsebenzi we-nano-interpolation. Isebenzisa iprosesa ene-RISC enejubane elikhulu. Ukuhumusha kuma-nanometer wemishini kungenza umshini ufanise ukusebenza kwemishini nezinga eliphakelayo lokuphakelayo.
5. Ukulawulwa kwejezi. Lapho ijika lihamba, ushintsho lokusheshisa lungadala ukudlidliza kwemishini. Ukulawulwa kwe-jerk ukuthola ngokuzenzakalela ukunyakaza okunjalo ukunciphisa ijubane nokunciphisa ukushaqeka kwemishini ukunciphisa inani lobukhulu bendawo.
6.NURBS ukuhumusha: Uma usebenzisa i-CAD ukuklama isikhunta, i-NURBS isetshenziswa kabanzi ukuveza amajika wamahhala. Uma kuqhathaniswa ne-CNC ejwayelekile, i-NURBS inezinga eliphakeme lokudlulisa nohlelo olufushane. Ngasikhathi sinye, izingxenye ezenziwe ngomshini zisondele ku-geometry yomklamo we-CAD.

Ngemisebenzi ye-high-speed, high-precision machining, lapho ukhetha, kuya ngokuthi umsebenzi ukhethiwe ngokuya ngejubane lemishini noma ngokunemba kwemishini. Ukuze kuqinisekiswe ukuthi iphutha le-machining lohlelo lwejubane lincane, uhlelo ludinga idivayisi yesinxephezelo sephutha. Lezi zinxephezelo zifaka phakathi: isinxephezelo esigcwele somugqa wesinxephezelo kanye nesinxephezelo sokugoba okungahambisani nomugqa, isinxephezelo sokufaka iphimbo, isinxephezelo sokubuyela emuva, isinxephezelo esingaphezulu kwe-quadrant, ithuluzi elilinganiselwe nokwandiswa okushisayo, ukungqubuzana okungaguquguquki, isinxephezelo sokushayisana okunamandla, njll. efanelekayo amathuluzi omshini angakhiwa.

(1) Ukuphathwa okubumbene. Ikhompyutha eyodwa ingasetshenziselwa ukulawula amathuluzi amaningi omshini, alungele ukuqapha, ukusebenza nokusebenza kwemishini, nokudlulisa nokuphathwa kwezinhlelo ze-NC.
(2) Ukusekelwa okukude nomsebenzi. Ngokuzayo, i-CNC isesimweni esinejubane elikhulu, ngakho-ke izidingo zokuthembeka ziphakeme kakhulu. Umsebenzi wokuhlola kabili uyindlela ebalulekile yokuqinisekisa ukusebenza ngokuphepha kohlelo lwe-CNC.

Ukucacisa okuphezulu, ubuchwepheshe besivinini esisheshayo ukuthuthukiswa kobuchwepheshe bendabuko bemishini, abunawo umehluko obalulekile nendabuko Ukufakwa kwe-CNC. Ngokucacisa okuphezulu, Machining ngesivinini, umgomo wamathuluzi omshini ukucubungula izingxenye zokucacisa okuphezulu ngejubane elikhulu. Ukuze kuzuzwe ukusheshisa kwejubane ngesisekelo sokunemba, kunezici ezintathu ezibalulekile: uhlelo lwemishini, i-CNC yedivayisi yokulawula izinombolo nedivayisi yokushayela. Ukusheshisa okuphezulu nokunemba okuphezulu kudinga ukuthi ithuluzi lomshini libe nezingxenye eziqinile zokuqina nezikhanya, ikakhulukazi izingxenye zokuphakelayo nezokuphotha. Owesibili uhlelo lokulawulwa kwamanani lwe-CNC, okuyiyunithi ekhipha imiyalo yejubane nendawo. Okokuqala, kuyadingeka ukuthi imiyalo ingadluliselwa ngokunembile futhi ngokushesha. Ngemuva kokuchofoza, kunikezwa umyalo wesikhundla ku-axis ngayinye yokuxhumanisa. Uhlelo lwe-servo kufanele luqhube ithuluzi ukuze lihambe ngokunembile ngokuya ngemiyalo.

Xhumanisa nale ndatshana: Isicelo Technology Of High-Precision Futhi High-Speed Machining

Isitatimende Esiphrintiwe: Uma ingekho imiyalo ekhethekile, zonke izindatshana ezikulesi sayithi zingokoqobo. Sicela ukhombise umthombo wokuphrinta kabusha: https: //www.cncmachiningptj.com/ ezinthanks！