Ngā rauemi hanga pumau i te wera. Kia tino mohio kei roto i ngā wāhanga matua o te hanganga mīhini ngā rauemi kāore e pāngia e ngā rerekētanga pāmahana. Whakaarohia te piriti (te tuaka-X o te mīhini), ngā tautoko piriti, te ara ārahi (te tuaka-Y o te mīhini), ngā whāriki me te pae tuaka-Z o te mīhini. Ka pā tika ēnei wāhanga ki te tika o ngā ine me ngā nekehanga o te mīhini, ā, koinei hoki ngā wāhanga tuara o te CMM.
He maha ngā kamupene e hanga ana i ēnei wāhanga mai i te konumohe nā te mea he mama, he ngāwari ki te miihini, ā, he iti hoki te utu. Heoi, he pai ake ngā rauemi pēnei i te karāneti, te uku rānei mō ngā CMM nā te mea he pumau te pāmahana. Haunga te mea ka tata whā ngā wā ka nui ake te whakawhanuitanga o te konumohe i te karāneti, he pai ake ngā āhuatanga whakamātao wiri o te karāneti, ā, ka taea te whakarato i tētahi mata pai rawa atu hei haere mā ngā peera. Ko te karāneti, kua roa nei e whakaaetia ana hei paerewa ine.
Heoi, mō ngā CMM, kotahi te ngoikoretanga o te karāhe - he taumaha. Ko te raruraru ko te kaha ki te neke i te CMM karāhe i runga i ōna toki mā te ringaringa, mā te servo rānei, hei ine. Kua kitea e tētahi whakahaere, ko The LS Starrett Co., tētahi otinga whakamere mō tēnei raruraru: Ko te Hangarau Karāhe Kohao.
Ka whakamahia e tēnei hangarau ngā pereti me ngā kurupae karāhe totoka ka hangaia, ka huihuia hoki hei hanga i ngā wāhanga hanganga kōhao. He rite te taumaha o ēnei hanganga kōhao ki te konumohe, engari e mau tonu ana ngā āhuatanga wera pai o te karāhe. Ka whakamahia e Starrett tēnei hangarau mō ngā wāhanga piriti me ngā wāhanga tautoko piriti. Waihoki, ka whakamahia e rātou te uku kōhao mō te piriti i runga i ngā CMM nui rawa atu ina kore e taea te whakamahi i te karāhe kōhao.
Ngā pereti. Kua whakarērea e te nuinga o ngā kaihanga CMM ngā pūnaha pereti roera tawhito, kua whiriwhiria ngā pūnaha pereti hau tino pai. Kāore ēnei pūnaha e hiahia kia pā te pereti me te mata o te pereti i te wā e whakamahia ana, ā, kāore he pakaru. Hei tāpiri, kāore he wāhanga neke o ngā pereti hau, nō reira, kāore he haruru, he wiri rānei.
Heoi anō, he rerekētanga anō hoki ō ngā peera hau. Ko te mea pai, kimihia he pūnaha e whakamahi ana i te karāpeti porous hei rauemi peera, kaua ki te konumohe. Mā te karāpeti i roto i ēnei peera ka taea te haere tika o te hau kōpeke mā roto i te porousity tūturu o te karāpeti, ka hua ake he paparanga hau tino marara puta noa i te mata peera. Waihoki, he tino angiangi te paparanga hau e hangaia ana e tēnei peera - tata ki te 0.0002″. Ko ngā peera konumohe tuku iho, i tetahi atu taha, he āputa hau kei waenganui i te 0.0010″ me te 0.0030″. He pai ake te āputa hau iti nā te mea ka whakaiti i te āhua o te mīhini ki te pekepeke ki runga i te urunga hau, ā, ka hua ake he mīhini tino pakari, tika, me te taea te whakahoki.
Ā-ringa me te DCC. He tino māmā te whakatau mēnā me hoko he CMM ā-ringa, he aunoa rānei. Mena he mea hanga tō taiao hanga matua, ko te nuinga o te wā he mīhini whakahaere rorohiko tika te kōwhiringa pai rawa atu mō te wā roa, ahakoa he nui ake te utu tīmatanga. He pai ngā CMM ā-ringa mēnā ka whakamahia mō ngā mahi tirotiro tuhinga tuatahi, mō te miihini whakamuri rānei. Mena he maha āu mahi i ngā mea e rua, ā, kāore koe e hiahia ki te hoko i ngā mīhini e rua, whakaarohia he CMM DCC me ngā puku servo wetewete, ka taea te whakamahi ā-ringa ina hiahiatia.
Pūnaha taraiwa. I te wā e whiriwhiri ana i tētahi DCC CMM, kimihia he mīhini kāore he hysteresis (he urupare whakamuri) i roto i te pūnaha taraiwa. Ka pā kino te hysteresis ki te tika o te tūnga me te auau o te mīhini. Ka whakamahia e ngā puku waku he rakau taraiwa tika me te whitiki taraiwa tika, ka hua ake he kore hysteresis me te iti rawa o te wiri.
Wā tuku: Hanuere-19-2022