Kumayambiriro kwa zaka za m'ma 18, micrometer inali pa siteji yopanga kupanga makina opanga makina.Micrometer ikadali imodzi mwa zida zoyezera molondola kwambiri pamisonkhano.Mwachidule fotokozani mbiri ya kubadwa ndi chitukuko cha micrometer.
1. Kuyesa koyamba kuyeza kutalika ndi ulusi
Anthu anayamba kugwiritsa ntchito mfundo ya ulusi poyeza kutalika kwa zinthu m’zaka za m’ma 1600.Mu 1638, W. Gascogine, katswiri wa zakuthambo ku Yorkshire, England, anagwiritsira ntchito mfundo ya screw poyeza mtunda wa nyenyezi.Mu 1693, adapanga lamulo loyezera lotchedwa "caliper micrometer".
Iyi ndi njira yoyezera yokhala ndi mphira yolumikizira yolumikizidwa ndi gudumu lozungulira lamanja kumapeto kwina ndi chikhadabo chosunthika kumapeto kwina.Kuwerenga koyezera kumatha kupezeka powerengera kuzungulira kwa gudumu lamanja ndi bezel yowerengera.Sabata imodzi ya sikelo yowerengera imagawidwa m'magawo 10 ofanana, ndipo mtunda umayesedwa posuntha chikwapu choyezera, chomwe chimazindikira kuyesa koyamba kwa anthu kuyeza kutalika ndi ulusi.
2. Watt ndi micrometer yoyamba pakompyuta
Zaka 100 kuchokera pamene Gascogine anapanga chida chake choyezera, James Watt, yemwe anayambitsa injini ya nthunzi, anapanga micrometer yoyamba yapakompyuta mu 1772. Chinthu chofunika kwambiri pakupanga kwake chinali kukula kozikidwa pa screw thread.Mapangidwe oyamba opangidwa ndi U omwe adagwiritsidwa ntchito ndi James Watt pambuyo pake adakhala muyezo wama micrometer.Popanda mbiri yake ya ma micrometer, zikanasokonezedwa apa.CNC Machining gawo
3. Sir Whitworth poyamba anagulitsa micrometer
Komabe, ma micrometer a benchi a James Watt ndi Mausdlay amangogwiritsa ntchito okha.Panalibe zida zoyezera molondola pamsika mpaka chakumapeto kwa zaka za zana la 19.Sir Joseph Whitworth, yemwe adayambitsa ulusi wotchuka wa "Whitworth", adakhala mtsogoleri polimbikitsa malonda a micrometer.CNC
4. Kubadwa kwa micrometer yamakono
Ma micrometer amakono ali ndi mawonekedwe owoneka ngati U komanso ogwiritsira ntchito dzanja limodzi.Opanga ambiri amagwiritsa ntchito mapangidwe wamba a ma micrometer.Mapangidwe awa amatha kuyambika ku 1848,
pamene wotulukira wa ku France J. Palmer anapeza patent yotchedwa Palmer system.Ma micrometer amakono pafupifupi amatsata kapangidwe kake ka Palmer system, monga mawonekedwe a U, casing, sleeve, mandrel, ndi anvil yoyezera.Zopereka za Palmer ndizosawerengeka m'mbiri ya micrometer.CNC auto gawo
5. Kukula ndi kukula kwa micrometer
Brown & Sharpe wa American B&S Company adayendera Paris International Exposition yomwe idachitika mu 1867, komwe adawona Palmer micrometer kwa nthawi yoyamba ndikuibweretsanso ku United States.Brown & Sharpe adaphunzira mosamala micrometer yomwe adabwera nayo kuchokera ku Paris, ndikuwonjezera njira ziwiri:
makina omwe amatha kuwongolera bwino kachipangizo kakang'ono komanso kachipangizo kotsekera.Anapanga micrometer ya m'thumba mu 1868 ndikuyibweretsa kumsika chaka chotsatira.
Kuyambira pamenepo, kufunikira kwa ma micrometer mumisonkhano yopanga makina kwanenedweratu molondola, ndipo ma micrometer oyenerera miyeso yosiyanasiyana akhala akugwiritsidwa ntchito kwambiri popanga zida zamakina.
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Nthawi yotumiza: Jan-07-2021