A halin yanzu, hanyoyin auna yanke ƙarshen bututu a cikin Masana'antu sun haɗa da ma'aunin madaidaiciya, ma'auni na tsaye, da ma'aunin dandamali na musamman.

1.Square ma'auni
Mai mulki mai murabba'i da ake amfani da shi don auna gangaren da aka yanke na ƙarshen bututu gabaɗaya yana da ƙafafu biyu.Ƙafa ɗaya yana da tsayin kusan 300mm kuma ana amfani da shi don rufe bangon bango na waje na ƙarshen bututu; ɗayan ƙafar kuma ta ɗan fi tsayi fiye da diamita na bututu kuma ana amfani da ita azaman ma'auni a kan bakin bututu, .Lokacin auna madaidaicin bututun, yakamata ƙafafu su kasance kusa da bangon waje na ƙarshen bututun da bututun bututun, kuma ƙarshen bututun yana karkata darajar a cikin wannan jagorar tare da ma'aunin ji.
Hanyar aunawa tana ɗaukar kayan aiki masu sauƙi da sauƙi auna.Koyaya, kuskuren ma'auni yana shafar lallausan bangon waje na ƙarshen bututu yayin aunawa.Har ila yau, idan diamita na bututun karfen da za a gwada ya yi girma, ya kamata a yi amfani da babban fili, wanda yake da nauyi da rashin dacewa don ɗauka.

2.Ma'auni na tsaye
Yin amfani da nau'i-nau'i biyu na rollers masu juyawa, ana sanya bututun ƙarfe akansa, kuma bututun ƙarfe ba ya buƙatar daidaitawa.Sanya sashi tare da guduma waya a saman saman bangon waje na ƙarshen bututu don gwadawa.An kafa shinge a saman saman bangon waje na ƙarshen bututu.Gudun waya yana rataye a bakin bututun kuma yana da nisa daga ƙarshen bututun, kuma yana kiyaye matsayinsa yayin aunawa a bangarorin biyu akai-akai.
Da farko, auna tazarar da ke tsakanin saman ƙarshen da ƙananan ƙarshen bututun da layin tsaye, sannan a juya bututun ƙarfe 180 °, auna tazarar tsakanin saman ƙarshen da ƙananan ƙarshen bututun da layin tsaye a ciki. haka kuma.Bayan ɗaukar jimlar bambance-bambancen maki masu dacewa, ɗauki matsakaicin ƙimar, kuma cikakkiyar ƙimar ita ce ƙimar chamfer.
Wannan hanya ta kawar da tasirin layin tsaye ba daidai ba ne ga axis na bututun ƙarfe.Lokacin da bututun ƙarfe ya karkata, ƙimar tangential na ƙarshen bututun ƙarfe har yanzu ana iya auna shi daidai.Duk da haka, ana buƙatar kayan aiki irin su igiya mai jujjuya da guduma na waya a cikin tsarin aunawa, wanda ke da matsala.

3. Ma'aunin dandamali na musamman
Ka'idar wannan hanyar auna daidai take da hanyar a tsaye.Dandalin aunawa ya ƙunshi dandamali, abin nadi mai juyawa, da murabba'in aunawa.Babu buƙatar daidaita daidaituwa tsakanin ma'aunin bututun ƙarfe da ma'aunin ma'auni yayin aunawa.Sanya filin aunawa a bakin bututun kuma nisa daga bakin bututun shine 10-20mm.Ƙimar chamfer ita ce jimlar bambance-bambancen madaidaicin maki, sannan matsakaicin ƙimar, sannan kuma cikakkiyar ƙimar.
Wannan hanya yana da sauƙi don auna nisa tsakanin babba da ƙananan ƙwanƙwasa da murabba'i, kuma daidaito ya fi ma'auni na tsaye.Koyaya, kayan aikin taimako sun fi tsada kuma farashin ma'aunin yana da yawa.
Daga cikin hanyoyin guda uku, hanyar ma'aunin dandamali da aka keɓe yana da mafi kyawun daidaito kuma ana ba da shawarar don samar da bututun ƙarfe na kan layi; Hanyar aunawa ta tsaye tana da daidaito mafi kyau, kuma ana ba da shawarar yin amfani da ma'aunin layi na ƙananan batches na manyan bututun ƙarfe; Hanyar auna murabba'in yana da mafi ƙarancin daidaito, kuma ana ba da shawarar auna Ana amfani da bututun ƙarfe tare da ƙananan diamita.