Akohia me pēhea te whiriwhiri i te whānuitanga o te porowhita tika, kia mōhio ai koePokapū miihini CNCka whakahaerehia rānei e te pokapū hurihuri he huringa kua arotauhia. #cnctechtalk
Ahakoa kei te whakamahi koe i tētahiMīhini mira CNCme te taputapu hurihuri porowhita, he taputapu rāneimīhini huri CNCMe te porowhita hurihuri o te mīhini, he maha ngā whānuitanga porowhita o ngā mīhini CNC nunui. Ka nui ake te mana o te porowhita o raro, engari ka nui ake te tere o te porowhita teitei. He mea nui kia oti te mahi miihini i roto i te whānuitanga tere porowhita tika kia pai ai te hua. Anei ētahi tohutohu e rima mō te whiriwhiri i te whānuitanga tika:
Ka whakaputahia e ngā kaihanga taputapu mīhini ngā āhuatanga o te porowhita i roto i ā rātou pukapuka whakahaere. Kei reira ka kitea e koe te rpm iti rawa me te rpm mō ia awhe, me te mana e tumanakohia ana i te awhe rpm katoa.
Mena kāore anō kia akohia e koe ēnei raraunga nui, tera pea kāore i te pai te wā o tō huringa. Hei whakanui ake i te kino, tera pea ka nui rawa te pēhanga e tukuna ana e koe ki te motuka porotaka o te mīhini, ka mutu rānei. Mā te pānui i te pukapuka ā-ringa me te mārama ki ngā āhuatanga o te porotaka ka āwhina i a koe ki te whakapai ake i te hua o tō mīhini.
E rua, neke atu rānei, ngā pūnaha whakawhiti whānuitanga porowhita: ko tētahi he pūnaha me te motuka taraiwa porowhita maha-takahuri, ā, ko tētahi he pūnaha me te taraiwa miihini.
Ka hurihia e te hunga tuatahi te whānuitanga hiko mā te huri i ngā takai o te motuka e whakamahia ana e rātou. Tata tonu te tere o ēnei huringa.
Ko te tikanga, ka taraiwa tika te pūnaha tuku miihini i tōna awhe teitei rawa, ā, ka uru te tuku ki te awhe iti iho. Tērā pea ka roa te whakarerekētanga awhe, inā koa me mutu te porowhita i te wā e mahi ana.
Mō te CNC, he mārama te panonitanga o te whānuitanga o te porowhita, nā te mea kua tohua te tere o te porowhita ki te rpm, ā, mā te kupu S o te tere kua tohua ka tīpakohia e te mīhini te whānuitanga o te porowhita e tika ana. Me kī ko te whānuitanga tere-iti o te mīhini he 20-1,500 rpm, ā, ko te whānuitanga tere-tiketike he 1,501-4,000 rpm. Ki te tohua e koe te kupu S o te S300, ka tīpakohia e te mīhini te whānuitanga iti. Mā te kupu S o te S2000 ka tīpakohia e te mīhini te whānuitanga teitei.
Tuatahi, ka puta pea ngā huringa koretake i waenga i ngā taputapu i te hōtaka. Mō te tuku miihini, ka whakanui ake tēnei i te wā huringa, engari ka warewarehia pea nā te mea ka kitea noa iho ina roa ake te huringa o ētahi taputapu i ētahi atu. Mā te whakahaere i ngā taputapu e hiahia ana ki te whānuitanga ōrite i roto i te raupapa ka whakaiti i te wā huringa.
Tuarua, mā te tatau i te tere rpm o te porowhita mō ngā mahi whakakoi kaha ka whakanoho pea i te porowhita ki te pito o raro o te awhe porowhita teitei, ki te wāhi e iti ana te mana. Ka nui rawa te pēhanga ka puta ki te pūnaha taraiwa porowhita, ka mutu rānei te motuka porowhita. Ka whakaitihia e te kaihōtaka mātau te tere porowhita, ā, ka whiriwhiria te tere teitei rawa atu i te awhe iti, ki te wāhi e nui ana te mana hei mahi i te mahi miihini.
Mō te pokapū hurihuri, ka hurihia te whānuitanga o te porowhita mā te waehere M, ā, ko te whānuitanga teitei ake ka taupatupatu ki te whānuitanga o raro. Mō te pokapū hurihuri me te whānuitanga porowhita-toru, ka rite pea te taputapu iti ki te M41, ā, ko te tere he 30-1,400 rpm, ko te taputapu waenga ka rite pea ki te M42, ā, ko te tere he 40-2,800 rpm, ā, ko te taputapu teitei ka rite pea ki te M43, ā, ko te tere he 45-4,500 rpm.
Ka pā anake tēnei ki ngā pokapū hurihuri me ngā mahi e whakamahi ana i te tere mata pumau. Ina pumau te tere mata, ka tīpako tonu te CNC i te tere (rpm) e ai ki te tere mata kua tohua (waewae, m/min rānei) me te diameter e tukatukahia ana i tēnei wā.
Ina whakatakotoria e koe te tere whāngai mō ia hurihanga, ka rite te tere o te porowhita ki te wā. Ki te taea e koe te whakarea i te tere o te porowhita, ka tapahia te wā e hiahiatia ana mō ngā mahi miihini e pā ana ki te haurua.
Ko tētahi ture matua mō te whiriwhiri i te whānuitanga o te porowhita ko te whakatō i te whānuitanga iti me te whakaoti i te whānuitanga teitei. Ahakoa he ture pai tēnei hei whakarite kia rawaka te kaha o te porowhita, kāore e pai te mahi ina whakaarohia te tere.
Whakaarohia te taputapu mahi 1-inihi te whānui me huri taratara, me huri angiangi hoki. Ko te tere e taunakitia ana mō te taputapu taratara he 500 sfm. Ahakoa te whānui mōrahi (1 inihi), ka puta he 1,910 rpm (3.82 whakarea 500 wehea ki te 1). Me tere ake te tere mō te diameter iti ake. Mēnā ka whiriwhiria e te kaihōtaka te whānuitanga iti i runga i te wheako, ka eke te miro ki te rohe o te 1,400 rpm. Mēnā he nui te mana, ka tere ake te oti o te mahi taratara i te whānuitanga teitei ake.
Ka pā anō hoki tēnei ki ngā pokapū hurihuri me ngā mahi tārai e hiahia ana ki te tere mata pumau. Whakaarohia te hurihuri tārai i tētahi rakau 4-inihi te whānui me ngā diameter maha, ko te mea iti rawa ko te 1 inihi. Me kī ko te tere e taunakitia ana ko te 800 sfm. I te 4 inihi, ko te tere e hiahiatia ana ko te 764 rpm. Mā te awhe iti ka homai te mana e hiahiatia ana.
I te haere tonu o te mahi tārai, ka iti haere te whānui, ka piki haere te tere. I te 2.125 inihi, me neke ake te tere o te mīhini pai i te 1,400 rpm, engari ka eke te porowhita ki te tihi i te awhe iti o te 1,400 rpm, ā, ka roa ake te roa o ia mahi tārai tonu i te mea e tika ana. He pai ake te huri ki te awhe waenga i tēnei wā, inā koa mēnā ka huri wawe te awhe.
Ina uru te hōtaka ki te mīhini, ka ngaro noa te wā e penapenahia ana mā te karo i te whakarite hōtaka. Me whai i ngā mahi i raro nei kia angitu ai.
E whakamārama ana ngā tawhā i ngā taipitopito katoa o te taputapu mīhini e whakamahia ana, me pēhea te whakamahi i ngā āhuatanga me ngā mahi katoa a te CNC.
Wā tuku: Pipiri-24-2021