{"id":789,"date":"2020-07-31T02:47:29","date_gmt":"2020-07-31T02:47:29","guid":{"rendered":"https:\/\/saq0hpur0o.wpdns.site\/?p=789"},"modified":"2020-07-31T02:47:32","modified_gmt":"2020-07-31T02:47:32","slug":"design-considerations-for-four-point-right-angle-shearing-machine","status":"publish","type":"post","link":"https:\/\/www.hecter.cn\/cs\/design-considerations-for-four-point-right-angle-shearing-machine\/","title":{"rendered":"\u00davahy o n\u00e1vrhu \u010dty\u0159bodov\u00e9ho pravo\u00fahl\u00e9ho st\u0159\u00edhac\u00edho stroje"},"content":{"rendered":"

Hlavn\u00ed p\u0159enosov\u00e1 struktura CNC pravo\u00fahl\u00e9ho st\u0159\u00edh\u00e1n\u00ed stroj<\/a> zahrnuje p\u0159edev\u0161\u00edm \u010dty\u0159i typy: hydraulick\u00fd, spojkov\u00fd, jednobodov\u00fd se servo kuli\u010dkovou hlavou a \u010dty\u0159bodov\u00fd servopohon. Hydraulick\u00e1 konstrukce mus\u00ed b\u00fdt vybavena syst\u00e9mem chlazen\u00ed hydraulick\u00e9ho oleje. \u00danik hydraulick\u00e9ho oleje a \u010di\u0161t\u011bn\u00ed odpadn\u00edho oleje zp\u016fsob\u00ed ur\u010dit\u00e9 zne\u010di\u0161t\u011bn\u00ed \u017eivotn\u00edho prost\u0159ed\u00ed. Olejov\u00e9 \u010derpadlo v hydraulick\u00e9 stanici nav\u00edc pracuje nep\u0159etr\u017eit\u011b, co\u017e generuje velk\u00e9 ztr\u00e1ty tepeln\u00e9 energie. St\u0159\u00edhac\u00ed stroj nest\u0159\u00edh\u00e1. Ob\u010das tak\u00e9 spot\u0159ebov\u00e1v\u00e1 elekt\u0159inu, co\u017e m\u00e1 za n\u00e1sledek velkou spot\u0159ebu energie. Motor konstrukce spojkov\u00e9ho typu je v\u017edy v provozn\u00edm stavu a spot\u0159eba energie je vysok\u00e1. Krom\u011b toho je t\u0159eba na m\u00edst\u011b upravit \u0159ezac\u00ed zdvih st\u0159\u00edhac\u00edho stroje. Zp\u016fsob \u00fapravy je mechanick\u00e9 se\u0159\u00edzen\u00ed, rychlost nastaven\u00ed je pomal\u00e1 a p\u0159esnost nen\u00ed snadn\u00e9 zaru\u010dit.<\/p>\n\n\n\n

Spole\u010dn\u00e1 hlavn\u00ed p\u0159enosov\u00e1 struktura<\/h4>\n\n\n\n

Hlavn\u00ed p\u0159enosov\u00e1 struktura CNC pravo\u00fahl\u00e9ho st\u0159ihac\u00edho stroje zahrnuje hlavn\u011b \u010dty\u0159i typy: hydraulick\u00fd, spojkov\u00fd, jednobodov\u00fd se servo kuli\u010dkovou hlavou a \u010dty\u0159bodov\u00fd servopohon. Hydraulick\u00e1 konstrukce mus\u00ed b\u00fdt vybavena syst\u00e9mem chlazen\u00ed hydraulick\u00e9ho oleje. \u00danik hydraulick\u00e9ho oleje a \u010di\u0161t\u011bn\u00ed odpadn\u00edho oleje zp\u016fsob\u00ed ur\u010dit\u00e9 zne\u010di\u0161t\u011bn\u00ed \u017eivotn\u00edho prost\u0159ed\u00ed. Olejov\u00e9 \u010derpadlo v hydraulick\u00e9 stanici nav\u00edc pracuje nep\u0159etr\u017eit\u011b, co\u017e generuje velk\u00e9 ztr\u00e1ty tepeln\u00e9 energie. St\u0159\u00edhac\u00ed stroj nest\u0159\u00edh\u00e1 Ob\u010das tak\u00e9 spot\u0159ebov\u00e1v\u00e1 elekt\u0159inu, co\u017e m\u00e1 za n\u00e1sledek velkou spot\u0159ebu energie. Motor konstrukce spojkov\u00e9ho typu je v\u017edy v provozn\u00edm stavu a spot\u0159eba energie je vysok\u00e1. Krom\u011b toho je t\u0159eba na m\u00edst\u011b upravit \u0159ezac\u00ed zdvih st\u0159\u00edhac\u00edho stroje. Metoda nastaven\u00ed je mechanick\u00e9 se\u0159\u00edzen\u00ed, rychlost nastaven\u00ed je pomal\u00e1 a p\u0159esnost nen\u00ed snadn\u00e9 zaru\u010dit.<\/p>\n\n\n\n

Jednobodov\u00fd servomotor se servopohonem s kulovou hlavou poh\u00e1n\u00ed kuli\u010dkov\u00fd \u0161roub a p\u0159\u00edmo poh\u00e1n\u00ed horn\u00ed sloupek n\u00e1stroje pro realizaci st\u0159ihu listov\u00e9ho materi\u00e1lu. Tato struktura je relativn\u011b kompaktn\u00ed, eliminuje pot\u0159ebu mezilehl\u00fdch p\u0159enosov\u00fdch \u010dl\u00e1nk\u016f a m\u016f\u017ee dokon\u010dit efektivn\u011bj\u0161\u00ed a energeticky \u00fasporn\u011bj\u0161\u00ed \u0159ezac\u00ed pr\u00e1ce. Dr\u017e\u00e1k n\u00e1stroje v\u0161ak bude p\u0159i st\u0159\u00edh\u00e1n\u00ed generovat velk\u00e9 bo\u010dn\u00ed s\u00edly ve dvou sm\u011brech a u dr\u017e\u00e1ku n\u00e1stroje existuje riziko p\u0159evr\u00e1cen\u00ed. Tato jednobodov\u00e1 struktura kulov\u00e9 hlavy nem\u016f\u017ee tuto nev\u00fdhodu p\u0159ekonat. V\u0161echny bo\u010dn\u00ed s\u00edly jsou generov\u00e1ny dr\u017e\u00e1kem n\u00e1stroje. Zadn\u00ed vzp\u0159\u00edmen\u00e1 vodic\u00ed kolejnice nese, kdy\u017e n\u00e1strojov\u00fd sloupek \u0159ez\u00e1 plechy r\u016fzn\u00e9 tlou\u0161\u0165ky nebo r\u016fzn\u00e9 s\u00edly, budou generov\u00e1ny r\u016fzn\u00e9 p\u0159\u00ed\u010dn\u00e9 s\u00edly a vodic\u00ed kolejnice se tak\u00e9 deformuje v r\u016fzn\u00fdch stupn\u00edch, co\u017e ovlivn\u00ed p\u0159esnost \u0159ezu v obou sm\u011brech. Aby se zabr\u00e1nilo nadm\u011brn\u00e9 p\u0159\u00ed\u010dn\u00e9 s\u00edle, bude maxim\u00e1ln\u00ed d\u00e9lka \u0159ezu obr\u00e1b\u011bc\u00edho stroje s touto strukturou omezena.<\/p>\n\n\n\n

\u010cty\u0159bodov\u00e1 servopohonov\u00e1 konstrukce je poh\u00e1n\u011bna \u010dty\u0159bodov\u00fdmi dvou servomotory. M\u00e1 vlastnosti nastaviteln\u00e9ho zdvihu, anti-excentrick\u00e9ho zat\u00ed\u017een\u00ed a \u00faspory energie. Ve srovn\u00e1n\u00ed s jin\u00fdmi hlavn\u00edmi p\u0159enosov\u00fdmi strukturami m\u00e1 zjevn\u00e9 v\u00fdhody. Tento \u010dl\u00e1nek pou\u017e\u00edv\u00e1 hlavn\u00ed p\u0159enosovou metodu pravo\u00fahl\u00fdch n\u016f\u017eek jako v\u00fdzkumn\u00fd objekt, analyzuje a vysv\u011btluje opat\u0159en\u00ed v procesu n\u00e1vrhu.<\/p>\n\n\n\n

Slo\u017een\u00ed struktury a princip<\/h4>\n\n\n\n

\u010cty\u0159bodov\u00fd servo poh\u00e1n\u011bn\u00fd pravo\u00fahl\u00fd st\u0159ihac\u00ed stroj se skl\u00e1d\u00e1 hlavn\u011b z r\u00e1mu, horn\u00edho dr\u017e\u00e1ku no\u017ee, spodn\u00edho dr\u017e\u00e1ku no\u017ee, hnac\u00edho za\u0159\u00edzen\u00ed, p\u0159\u00edtla\u010dn\u00e9ho za\u0159\u00edzen\u00ed, mazac\u00edho syst\u00e9mu a chladic\u00edho syst\u00e9mu. Dv\u011b sady smykov\u00fdch lopatek instalovan\u00fdch v prav\u00e9m \u00fahlu jsou instalov\u00e1ny paraleln\u011b na horn\u00ed a doln\u00ed stran\u011b. Na ose X a Y osy sloupku n\u00e1stroje lze desku \u0159ezat v prav\u00e9m \u00fahlu ve vodorovn\u00e9 rovin\u011b.<\/p>\n\n\n\n

P\u0159evodov\u00fd mechanismus pravo\u00fahl\u00e9ho st\u0159ihac\u00edho stroje se skl\u00e1d\u00e1 ze servomotoru, kuli\u010dkov\u00e9ho \u0161roubu, kl\u00ednov\u00e9ho bloku atd., Jak je zn\u00e1zorn\u011bno na obr\u00e1zku 1. Servomotor poh\u00e1n\u00ed vodic\u00ed \u0161roub, aby se ot\u00e1\u010del spojkou, vod\u00edc\u00ed \u0161roub zatla\u010d\u00ed kl\u00ednov\u00fd blok, aby se posunul doprava, a spodn\u00ed povrch kl\u00ednov\u00e9ho bloku p\u0159itla\u010d\u00ed horn\u00ed dr\u017e\u00e1k no\u017ee, aby zatla\u010dil horn\u00ed dr\u017e\u00e1k no\u017ee, aby se posunul dol\u016f, a pot\u00e9 poh\u00e1n\u00ed horn\u00ed \u010depel\u00ed, aby roz\u0159\u00edzla desku. Aby se zajistilo, \u017ee horn\u00ed sloupek n\u00e1stroje m\u016f\u017ee b\u011bhem st\u0159ihov\u00e9ho pohybu \u00fa\u010dinn\u011b odol\u00e1vat smykov\u00e9 s\u00edle ve sm\u011bru X\/Y, jsou z\u0159\u00edzeny dv\u011b sady p\u0159evodov\u00fdch mechanism\u016f. Dv\u011b sady p\u0159evodov\u00fdch mechanism\u016f poh\u00e1n\u011bj\u00ed naklon\u011bn\u00fd kl\u00edn, aby se dot\u00fdkal v\u00e1le\u010dk\u016f horn\u00edho sloupku n\u00e1stroje. Kdy\u017e \u0159ezac\u00ed stroj prov\u00e1d\u00ed pravo\u00fahl\u00fd st\u0159ihac\u00ed stroj, lev\u00fd a prav\u00fd \u0161ikm\u00fd kl\u00edn na obou sad\u00e1ch p\u0159evodov\u00fdch mechanism\u016f spole\u010dn\u011b zatla\u010d\u00ed na horn\u00ed no\u017eov\u00fd sloupek, aby se posunul dol\u016f, aby se \u0159ezac\u00ed akce dokon\u010dila.<\/p>\n\n\n\n

Princip anti-excentrick\u00e9ho zat\u00ed\u017een\u00ed \u010dty\u0159bodov\u00e9ho servo poh\u00e1n\u011bn\u00e9ho pravo\u00fahl\u00e9ho st\u0159iha\u010de je: v okam\u017eiku, kdy horn\u00ed sloupek n\u00e1stroje roz\u0159\u00edzne plech, jsou dv\u011b sady hnac\u00edch za\u0159\u00edzen\u00ed synchronn\u011b \u0159\u00edzeny servomotory a synchronn\u00edm hnac\u00edm za\u0159\u00edzen\u00edm je extr\u00e9mn\u011b tuh\u00fd. Zatla\u010den\u00ed horn\u00edho sloupku n\u00e1stroje vyva\u017euje tendenci ot\u00e1\u010den\u00ed zp\u016fsobenou st\u0159i\u017enou silou v kter\u00e9mkoli bod\u011b, tak\u017ee horn\u00ed sloupek n\u00e1stroje m\u016f\u017ee p\u016fsoben\u00edm st\u0159ihov\u00e9 s\u00edly velmi deformovat n\u016f\u017e, \u010d\u00edm\u017e je zaji\u0161t\u011bna kvalita \u0159ezu.<\/p>\n\n\n\n

\"pravo\u00fahl\u00fd

Obr\u00e1zek 1 Schematick\u00fd diagram struktury pravo\u00fahl\u00e9ho st\u0159ihac\u00edho stroje<\/figcaption><\/figure>\n\n\n\n

Anal\u00fdza mont\u00e1\u017ee kolejnic<\/h4>\n\n\n\n

Horn\u00ed \u010depel \u010dty\u0159bodov\u00e9ho servomotorem poh\u00e1n\u011bn\u00e9ho pravo\u00fahl\u00e9ho st\u0159ihac\u00edho stroje je um\u00edst\u011bna uprost\u0159ed r\u00e1mu. Sestava \u010dty\u0159strann\u00e9ho veden\u00ed je obt\u00ed\u017en\u00e1 a n\u00e1kladn\u00e1. Horn\u00ed dr\u017e\u00e1k \u010depele v pr\u016fmyslu proto v\u011bt\u0161inou vyu\u017e\u00edv\u00e1 oboustrann\u00e9 veden\u00ed. Oba povrchy vodic\u00ed sestavy jsou navz\u00e1jem kolm\u00e9. Existuj\u00ed dva zp\u016fsoby, jak sestavit vodic\u00ed kolejnice: v bl\u00edzkosti \u010depele a mimo ni, jak je zn\u00e1zorn\u011bno na obr\u00e1zku 2.<\/p>\n\n\n\n

\"\"

Obr\u00e1zek 2 Zp\u016fsob mont\u00e1\u017ee vodic\u00ed li\u0161ty<\/figcaption><\/figure>\n\n\n\n

Na obr horn\u00ed dr\u017e\u00e1k n\u00e1stroj\u016f<\/a> a beran jsou spojeny \u0161rouby a vodic\u00ed kolejnice a r\u00e1m jsou spojeny \u0161rouby. B\u011bhem procesu \u0159ez\u00e1n\u00ed plechu je reak\u010dn\u00ed s\u00edla listu na horn\u00edm ost\u0159\u00ed krom\u011b svisl\u00e9 smykov\u00e9 s\u00edly tak\u00e9 horizont\u00e1ln\u00ed. Sm\u011brov\u00fd tah, kter\u00fd je generov\u00e1n stla\u010den\u00edm horn\u00edho a doln\u00edho listu na list.<\/p>\n\n\n\n

Kdy\u017e je vodic\u00ed kolejnice bl\u00edzko sestavy \u010depele, s\u00edla je p\u0159en\u00e1\u0161ena na r\u00e1m prost\u0159ednictv\u00edm bl\u00edzk\u00e9ho beranu a tuhost r\u00e1mu omezuje v\u00fdt\u011b\u017enost no\u017ee b\u011bhem procesu st\u0159ihu. V\u00fdhodou je, \u017ee deformace horn\u00edho r\u00e1mu no\u017ee m\u00e1 mal\u00fd \u00fa\u010dinek, a nev\u00fdhodou je, \u017ee \u00fanosnost beranu je nerovnom\u011brn\u00e1. \u00danosnost beranu v bl\u00edzkosti s\u00edly je velk\u00e1 a upev\u0148ovac\u00ed \u0161roub vodic\u00ed li\u0161ty vykazuje tendenci se pod silou roztahovat. Vodic\u00ed kolejnici lze snadno proklouznout, kdy\u017e je tlust\u00e1 deska st\u0159i\u017eena a odch\u00fdl\u00ed se od po\u010d\u00e1te\u010dn\u00ed mont\u00e1\u017en\u00ed polohy.<\/p>\n\n\n\n

Kdy\u017e je vodic\u00ed kolejnice daleko od sestavy \u010depel\u00ed, s\u00edla se p\u0159en\u00e1\u0161\u00ed na stojan p\u0159es horn\u00ed dr\u017e\u00e1k n\u00e1stroje. D\u00edky koordinovan\u00e9 deformaci horn\u00edho dr\u017e\u00e1ku n\u00e1stroje je \u00fanosnost ka\u017ed\u00e9ho beranu stejn\u00e1 a upev\u0148ovac\u00ed \u0161rouby vodic\u00ed li\u0161ty nejsou ovlivn\u011bny silou a nebudou se odchylovat od po\u010d\u00e1te\u010dn\u00ed mont\u00e1\u017en\u00ed polohy. Nev\u00fdhody V procesu p\u0159enosu s\u00edly vytv\u00e1\u0159\u00ed horn\u00ed dr\u017e\u00e1k n\u00e1stroje ur\u010ditou deformaci. P\u0159i \u0159ez\u00e1n\u00ed materi\u00e1l\u016f s r\u016fznou tlou\u0161\u0165kou by \u00faprava mezery kotou\u010de m\u011bla komplexn\u011b zohlednit vliv deformace horn\u00edho dr\u017e\u00e1ku n\u00e1stroje.<\/p>\n\n\n\n

Anal\u00fdza \u00fa\u010dinku tlakov\u00e9ho v\u00e1lce<\/h4>\n\n\n\n

St\u0159i\u017en\u00e1 \u010d\u00e1st plechu je rozd\u011blena do \u010dty\u0159 oblast\u00ed, a to na oblast zhroucen\u00ed, hladkou oblast, oblast trhlin a oblast ot\u0159ep\u016f. Hladk\u00e1 oblast je plastick\u00e1 deformace p\u0159i extruzn\u00edm nap\u011bt\u00ed a dal\u0161\u00ed t\u0159i oblasti sekc\u00ed jsou plastick\u00e9 p\u0159i tahov\u00e9m nap\u011bt\u00ed. Deformace. Ve f\u00e1zi extruze list kv\u016fli omezen\u00fdm omezen\u00edm horn\u00edch a doln\u00edch lopatek neklou\u017ee. Ve f\u00e1zi roztahov\u00e1n\u00ed se list nat\u00e1hne a sklouzne. Ve stroj\u00edrenstv\u00ed se metoda lisov\u00e1n\u00ed \u010dasto pou\u017e\u00edv\u00e1 k omezen\u00ed prokluzu listu.<\/p>\n\n\n\n

Ve skute\u010dn\u00e9m n\u00e1vrhu st\u0159ihac\u00edho stroje je n\u00e1vrh lisovac\u00ed s\u00edly mnohem men\u0161\u00ed ne\u017e vypo\u010dten\u00e1 hodnota empirick\u00e9ho v\u00fdpo\u010dtov\u00e9ho vzorce. Nap\u0159\u00edklad pro lisovac\u00ed materi\u00e1l je vybr\u00e1no 40 sad v\u00e1lc\u016f s pr\u016fm\u011brem v\u00e1lce 25 mm a pracovn\u00ed tlak je 0,6 MPa. Maxim\u00e1ln\u00ed teoretick\u00e1 v\u00fdstupn\u00ed s\u00edla, kterou v\u00e1lec m\u016f\u017ee poskytnout, je 9080 N. P\u0159i \u0159ez\u00e1n\u00ed plechu z nerezov\u00e9 oceli o rozm\u011brech 2500 mm \u00d7 1500 mm \u00d7 4 mm je lisovac\u00ed s\u00edla vypo\u010d\u00edtan\u00e1 empirick\u00fdm vzorcem 87529N. Skute\u010dn\u00e1 n\u00e1vrhov\u00e1 hodnota je mnohem men\u0161\u00ed ne\u017e teoretick\u00e1 v\u00fdpo\u010dtov\u00e1 hodnota, co\u017e nazna\u010duje, \u017ee st\u0159ihov\u00fd v\u00e1lec nen\u00ed pou\u017eit k omezen\u00ed prokluzu desky. M\u00edsto toho se pou\u017e\u00edv\u00e1 k omezen\u00ed zved\u00e1n\u00ed archu b\u011bhem procesu st\u0159\u00edh\u00e1n\u00ed a k zabr\u00e1n\u011bn\u00ed zvednut\u00ed listu p\u0159i zp\u011btn\u00e9m zdvihu listu. Skluz listu je omezen hlavn\u011b svorkou, ale v oblasti vzd\u00e1len\u00e9 od svorky je tuhost plechu relativn\u011b vysok\u00e1. Slab\u00e9, toto omezen\u00ed bude nev\u00fdznamn\u00e9, tak\u017ee p\u0159esnost st\u0159ihu bude hor\u0161\u00ed.<\/p>\n\n\n\n

\u00dahel zaslepen\u00ed je p\u0159\u00edli\u0161 bl\u00edzko \u010depele a p\u0159\u00eddr\u017en\u00e1 s\u00edla poskytovan\u00e1 p\u0159\u00eddr\u017enou silou poskytuje mal\u00fd moment proti vztlaku. P\u0159i \u0159ez\u00e1n\u00ed siln\u00fdch desek m\u00e1 p\u0159\u00eddr\u017en\u00fd v\u00e1lec nedostate\u010dnou schopnost dr\u017eet; \u00fahel zaslepen\u00ed je p\u0159\u00edli\u0161 daleko od \u010depele a horn\u00ed \u010depel se vrac\u00ed s materi\u00e1lem p\u0159i \u0159ez\u00e1n\u00ed tenk\u00fdch desek. Odpad z plechu je \u010dasto p\u0159\u00edli\u0161 \u0161irok\u00fd a m\u00edra vyu\u017eit\u00ed plechu je n\u00edzk\u00e1.<\/p>\n\n\n\n

Opat\u0159en\u00ed z\u00e1ruky p\u0159esnosti st\u0159ihac\u00edho stroje<\/h4>\n\n\n\n

Mezi vady kvality \u0159ezu listov\u00e9ho materi\u00e1lu pat\u0159\u00ed p\u0159edev\u0161\u00edm prov\u011b\u0161en\u00ed, ot\u0159epy, \u0161patn\u00e1 rovnob\u011b\u017enost protilehl\u00fdch stran, \u0161patn\u00e1 kolmost sousedn\u00edch stran atd., Kter\u00e9 souvisej\u00ed s mezerou ost\u0159\u00ed, rovnob\u011b\u017enost\u00ed horn\u00edho a doln\u00edho listu a kolmost\u00ed listu a listu.<\/p>\n\n\n\n

P\u0159\u00edli\u0161 mal\u00e1 mezera st\u0159i\u017en\u00e9ho kotou\u010de zv\u00fd\u0161\u00ed st\u0159i\u017enou s\u00edlu a sou\u010dasn\u011b zv\u00fd\u0161\u00ed t\u0159en\u00ed mezi b\u0159item a okrajem desky a zrychl\u00ed opot\u0159eben\u00ed b\u0159itu. Pokud je mezera p\u0159\u00edli\u0161 velk\u00e1, ocelov\u00e1 deska z plastov\u00e9ho materi\u00e1lu vytvo\u0159\u00ed ot\u0159epy a lom ocelov\u00e9 desky z k\u0159ehk\u00e9ho materi\u00e1lu bude drsn\u00fd. Hodnota mezery souvis\u00ed s tlou\u0161\u0165kou ocelov\u00e9ho plechu a mechanick\u00fdmi vlastnostmi ocelov\u00e9ho plechu. V sou\u010dasn\u00e9 dob\u011b jsou n\u016f\u017eky v\u011bt\u0161inou vybaveny za\u0159\u00edzen\u00edmi pro automatick\u00e9 nastaven\u00ed mezery.<\/p>\n\n\n\n

Rozd\u00edl v rovnob\u011b\u017enosti horn\u00edch a doln\u00edch lopatek zp\u016fsob\u00ed, \u017ee se b\u011bhem provozu horn\u00ed \u010depele zm\u011bn\u00ed mezera mezi lopatkami a podle toho se tak\u00e9 zm\u011bn\u00ed svislost horn\u00ed \u010depele. B\u011bhem procesu \u0159ez\u00e1n\u00ed dojde k vad\u00e1m, jako je zhroucen\u00ed hran, ot\u0159epy, tah\u00e1n\u00ed materi\u00e1lu a odizolov\u00e1n\u00ed \u010depele; Zm\u011bnu kolmosti na \u010depel, krom\u011b \u010depele samotn\u00e9, ovlivn\u00ed tak\u00e9 deformace samotn\u00e9 desky.<\/p>\n\n\n\n

Synchronn\u00ed ovl\u00e1d\u00e1n\u00ed s dvojit\u00fdm servomotorem<\/h4>\n\n\n\n

\u010cty\u0159bodov\u00fd servomotorem \u0159\u00edzen\u00fd st\u0159ihac\u00ed stroj vyu\u017e\u00edv\u00e1 re\u017eim dvojit\u00e9ho servopohonu a polouzav\u0159en\u00e9 smy\u010dky. Motor vyu\u017e\u00edv\u00e1 synchronn\u00ed \u0159\u00edzen\u00ed. Port\u00e1lov\u00e1 synchronn\u00ed osa je p\u0159ipojena k NC CNC syst\u00e9mu pro jednotn\u00e9 ovl\u00e1d\u00e1n\u00ed. Hlavn\u00ed a pod\u0159\u00edzen\u00fd motor jsou sou\u010dasn\u011b ovl\u00e1d\u00e1ny NCU (Numerical Control System Control Unit). Ovl\u00e1d\u00e1n\u00ed polohy. P\u0159i volnob\u011bhu je synchronizace du\u00e1ln\u00edch servomotor\u016f velmi dobr\u00e1, ale b\u011bhem procesu \u0159ez\u00e1n\u00ed p\u0159esnost synchronizace du\u00e1ln\u00edch servomotor\u016f v ur\u010dit\u00e9m okam\u017eiku kol\u00eds\u00e1. Nesynchronizace dvou motor\u016f zp\u016fsob\u00ed naklon\u011bn\u00ed horn\u00edho sloupku n\u00e1stroje a horn\u00edho kotou\u010de a n\u00e1sledn\u011b ovlivn\u00ed p\u0159esnost zpracov\u00e1n\u00ed. \u0158\u00edzen\u00edm p\u0159\u00edpustn\u00e9ho fluktua\u010dn\u00edho rozsahu f\u00e1zov\u00e9ho rozd\u00edlu du\u00e1ln\u00edch motor\u016f je horn\u00ed sloupek n\u00e1stroje \u0159\u00edzen tak, aby b\u011b\u017eel hladce, \u010d\u00edm\u017e je zaji\u0161t\u011bna rovnob\u011b\u017enost horn\u00edch a doln\u00edch no\u017e\u016f.<\/p>\n\n\n\n

\u0160ikm\u00fd kl\u00edn je slad\u011bn s v\u00e1le\u010dkem horn\u00edho sloupku n\u00e1stroje<\/h4>\n\n\n\n

B\u011bhem procesu mont\u00e1\u017ee nemus\u00ed b\u00fdt l\u00edcov\u00e1n\u00ed \u0161ikm\u00e9ho kl\u00ednu a horn\u00edho dr\u017e\u00e1ku n\u00e1stroje p\u0159\u00edli\u0161 t\u011bsn\u00e9 a existuje n\u011bkolik faktor\u016f.<\/p>\n\n\n\n

Error Chyba mont\u00e1\u017ee. B\u011bhem procesu mont\u00e1\u017ee mus\u00ed diagon\u00e1ln\u00ed kl\u00edn dob\u0159e p\u0159il\u00e9hat k v\u00e1le\u010dku horn\u00edho sloupku n\u00e1stroje a p\u0159\u00edtla\u010dn\u00e1 s\u00edla by m\u011bla b\u00fdt rovnom\u011brn\u00e1. Pokud je s\u00edla p\u016fsob\u00edc\u00ed jednotliv\u00fdmi kl\u00edny na horn\u00ed sloupek n\u00e1stroje p\u0159\u00edli\u0161 velk\u00e1, objev\u00ed se kl\u00edn a v\u00e1le\u010dek b\u011bhem provozu. mezera.<\/p>\n\n\n\n

Error V\u00fdrobn\u00ed chyba. V \u00fahlu kl\u00ednu sestaven\u00e9ho na hnac\u00edm za\u0159\u00edzen\u00ed je chyba, co\u017e je hlavn\u00ed d\u016fvod dynamick\u00e9 mezery mezi kl\u00ednem a v\u00e1le\u010dkem b\u011bhem provozu.<\/p>\n\n\n\n

Stress Mont\u00e1\u017en\u00ed nap\u011bt\u00ed. Pokud je mechanismus dvojit\u00e9ho pohonu nep\u0159im\u011b\u0159en\u011b p\u0159ipojen k horn\u00edmu sloupku n\u00e1stroje nebo nen\u00ed synchronn\u00ed motor p\u0159ed zapnut\u00edm \u0159\u00e1dn\u011b uvoln\u011bn, dojde k nap\u011bt\u00ed mezi mechanismem dvojit\u00e9ho pohonu a horn\u00edm sloupkem n\u00e1stroje. V provozu na volnob\u011bh bude existovat pouze jeden pohon Mechanismus zaji\u0161\u0165uje hlavn\u00ed nap\u00e1jen\u00ed. Po del\u0161\u00ed dob\u011b bude mezi druhou sadou kl\u00edn\u016f a horn\u00edm sloupkem n\u00e1stroje mezera.<\/p>\n\n\n\n

Mezi \u0161ikm\u00fdm kl\u00ednem a v\u00e1le\u010dkem horn\u00edho sloupku n\u00e1stroje je mezera. \u00da\u010dinek na p\u0159esnost obr\u00e1b\u011bn\u00ed je podobn\u00fd jako u chyby synchronizace servomotoru. B\u011bhem procesu \u0159ez\u00e1n\u00ed bude v\u00fd\u0161kov\u00fd rozd\u00edl mezi levou a pravou stranou horn\u00edho sloupku n\u00e1stroje kol\u00edsat, co\u017e ovlivn\u00ed mezeru ost\u0159\u00ed. Tato situace je tak\u00e9 snadno zp\u016fsobiteln\u00e1 ot\u0159esy b\u011bhem provozu, co\u017e zp\u016fsobuje hluk a po\u0161kozen\u00ed kl\u00ed\u010dov\u00fdch \u010d\u00e1st\u00ed. Proto je p\u0159i skute\u010dn\u00e9m procesu mont\u00e1\u017ee nutn\u00e9 dynamicky sledovat mezeru mezi kl\u00ednem a v\u00e1le\u010dkem v r\u016fzn\u00fdch \u010dasov\u00fdch obdob\u00edch.<\/p>\n\n\n\n

Propad list\u016f<\/h4>\n\n\n\n

Kdy\u017e pravo\u00fahl\u00fd st\u0159ihac\u00ed stroj st\u0159\u00edh\u00e1 velk\u00e9 obrobky, jako jsou obrobky v\u011bt\u0161\u00ed ne\u017e 300 mm v obou sm\u011brech X\/Y, je tuhost desky p\u0159i pokl\u00e1d\u00e1n\u00ed ploch\u00e1 \u0161patn\u00e1. P\u0159ed zah\u00e1jen\u00edm \u0159ez\u00e1n\u00ed se deska vlivem gravitace proh\u00fdb\u00e1 a je daleko od desky v upnut\u00e9 oblasti V d\u016fsledku odchylky deformace od nastaven\u00e9 polohy, kvality \u0159ezu sousedn\u00edch okraj\u016f desky a rovnob\u011b\u017enosti opa\u010dn\u00fdch okraje se zhor\u0161\u00ed. Nejjednodu\u0161\u0161\u00edm opat\u0159en\u00edm je navrhnout sadu podp\u016frn\u00fdch mechanism\u016f pro omezen\u00ed prov\u011b\u0161en\u00ed listu. Obr\u00e1zek 3 ukazuje nejpou\u017e\u00edvan\u011bj\u0161\u00ed sch\u00e9ma principu podpory st\u0159ihac\u00edho stroje. V\u00e1lec vyu\u017e\u00edv\u00e1 princip p\u00e1ky k tla\u010den\u00ed druh\u00e9ho konce op\u011brn\u00e9ho v\u00e1lce k pohybu nahoru kruhov\u00fdm pohybem, co\u017e \u0161et\u0159\u00ed mont\u00e1\u017en\u00ed prostor.<\/p>\n\n\n\n

\"\"
<\/figcaption><\/figure>\n\n\n\n

Tento \u010dl\u00e1nek se zab\u00fdv\u00e1 charakteristikami st\u00e1vaj\u00edc\u00edho pravo\u00fahl\u00e9ho st\u0159ihac\u00edho stroje. Vezmeme-li \u010dty\u0159bodov\u00e9 servo poh\u00e1n\u011bn\u00e9 pravo\u00fahl\u00e9 n\u016f\u017eky jako p\u0159edm\u011bt, strukturu, slo\u017een\u00ed a princip pr\u00e1ce. Zp\u016fsob veden\u00ed horn\u00edho sloupku n\u00e1stroje a lisovac\u00edho v\u00e1lce \u00da\u010dinek je analyzov\u00e1n; analyzuje se vliv synchronizace motoru, sestavy p\u0159evodov\u00e9ho mechanismu a prov\u011b\u0161en\u00ed listov\u00e9ho materi\u00e1lu na p\u0159esnost pravo\u00fahl\u00fdch n\u016f\u017eek a jsou poskytnuta odpov\u00eddaj\u00edc\u00ed z\u00e1ru\u010dn\u00ed opat\u0159en\u00ed, kter\u00e1 poskytuj\u00ed vod\u00edtka a n\u00e1vrhy pro konstrukci pravo\u00fahl\u00e9ho st\u0159ihac\u00edho stroje.<\/p>","protected":false},"excerpt":{"rendered":"

The main transmission structure of the CNC right-angle shearing machine mainly includes four types: hydraulic type, clutch-type, single-point servo ball<\/p>","protected":false},"author":3,"featured_media":794,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[704,703,368],"class_list":["post-789","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-shearing-machine","tag-design-considerations","tag-right-angle-shearing-machine","tag-shearing-machine"],"jetpack_featured_media_url":"https:\/\/www.hecter.cn\/wp-content\/uploads\/2020\/07\/Design-considerations-for-four-point-right-angle-shearing-machine.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.hecter.cn\/cs\/wp-json\/wp\/v2\/posts\/789","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hecter.cn\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hecter.cn\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hecter.cn\/cs\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hecter.cn\/cs\/wp-json\/wp\/v2\/comments?post=789"}],"version-history":[{"count":0,"href":"https:\/\/www.hecter.cn\/cs\/wp-json\/wp\/v2\/posts\/789\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hecter.cn\/cs\/wp-json\/wp\/v2\/media\/794"}],"wp:attachment":[{"href":"https:\/\/www.hecter.cn\/cs\/wp-json\/wp\/v2\/media?parent=789"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hecter.cn\/cs\/wp-json\/wp\/v2\/categories?post=789"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hecter.cn\/cs\/wp-json\/wp\/v2\/tags?post=789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}