Khale koana lekholong la bo18 la lilemo, micrometer e ne e le sethaleng sa tlhahiso ea indasteri ea lisebelisoa tsa mochine. Micrometer e ntse e le e 'ngoe ea lisebelisoa tse atileng haholo tsa ho metha ka nepo ka har'a workshop. Hlahisa ka bokhutšoanyane nalane ea tsoalo le nts'etsopele ea micrometer.
1. Teko ea pele ea ho metha bolelele ka likhoele
Batho ba qalile ho sebelisa molao-motheo oa khoele ho lekanya bolelele ba lintho lekholong la bo17 la lilemo. Ka 1638, W. Gascogine, setsebi sa linaleli sa Yorkshire, Engelane, o ile a sebelisa sekoti ho lekanya bohōle ba linaleli. Ka 1693, o ile a qapa molao oa ho lekanya o bitsoang "caliper micrometer".
Ena ke sistimi ea ho metha e nang le screw shaft e hoketsoeng lebiling la letsoho le bilikang pheletsong e 'ngoe le manala a suthang pheletsong e 'ngoe. Ho bala tekanyo ho ka fumanoa ka ho bala ho potoloha ha lebili la letsoho le bezel ea ho bala. Beke e le 'ngoe ea sekala sa ho bala e arotsoe ka likarolo tse 10 tse lekanang,' me sebaka se lekanngoa ka ho tsamaisa claw ea ho metha, e hlokomelang boiteko ba pele ba batho ba ho lekanya bolelele ka likhoele.
2. Watt le micrometer ea pele ea desktop
Lilemo tse lekholo ka mor'a hore Gascogine a qape sesebelisoa sa hae sa ho lekanya, James Watt, moqapi oa mochine oa mouoane, o ile a qapa micrometer ea pele ea lik'homphieutha ka 1772. Ntho ea bohlokoa moralong oa eona e ne e le ho hōlisa ho itšetlehile ka khoele ea screw. Moralo oa pele oa sebopeho sa U o sebelisitsoeng ke James Watt hamorao o ile oa fetoha tekanyetso ea li-micrometer. Ntle le nalane ea hae ea li-micrometer, e ka sitisoa mona.Karolo ea machining ea CNC
3. Sir Whitworth o ile a qala ho rekisa micrometer
Leha ho le joalo, li-micrometer tsa benche tsa James Watt le Mausdlay ke tsa tšebeliso ea bona. Ho ne ho se na lisebelisoa tsa ho metha tse nepahetseng 'marakeng ho fihlela qetellong ea lekholo la bo19 la lilemo. Sir Joseph Whitworth, ea ileng a qapa "khoele ea Whitworth", e ile ea e-ba moetapele oa ho khothalletsa khoebo ea micrometer.CNC
4. Ho tsoaloa ha micrometer ea kajeno
Li-micrometer tsa sejoale-joale tse tloaelehileng li na le sebopeho sa sebopeho sa U le ts'ebetso ea letsoho le le leng. Baetsi ba bangata ba sebelisa moralo o tloaelehileng oa li-micrometer. Moralo ona o tloaelehileng o ka saloa morao ho 1848,
ha moqapi oa Lefora J. Palmer a fumana patent e bitsoang Palmer system. Li-micrometer tsa morao-rao li batla li latela moralo oa motheo oa sistimi ea Palmer, joalo ka sebopeho sa U, casing, sleeve, mandrel, le anvil ea ho metha. Tlatsetso ea Palmer e ke ke ea lekanngoa historing ea micrometer.Karolo ea koloi ea CNC
5. Kholiso le kholo ea micrometer
Brown & Sharpe oa American B&S Company ba ile ba etela Paris International Exposition e neng e tšoaretsoe 1867, moo ba ileng ba bona Palmer micrometer ka lekhetlo la pele 'me ba e khutlisetsa United States. Brown & Sharpe ba ithutile ka hloko micrometer eo ba e tlisitseng ho tloha Paris, 'me ba eketsa mekhoa e' meli ho eona:
mochini o khonang ho laola seluloana hantle le sesebedisoa sa ho notlela seluloana. Ba ile ba hlahisa pocket micrometer ka 1868 'me ba e tsebisa' marakeng selemong se latelang.
Ho tloha ka nako eo, tlhokahalo ea li-micrometer lithupelong tsa tlhahiso ea mechini e boletsoe esale pele ka nepo, 'me li-micrometer tse loketseng litekanyo tse fapaneng li' nile tsa sebelisoa haholo ka nts'etsopele ea lisebelisoa tsa mochini.
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Nako ea poso: Jan-07-2021