Tsarin awo thread - da ikon yinsa, da kuma aikace-aikace hanyoyin

Daya daga cikin na kowa a cikin masana'antu da kuma a cikin gida ne da wani tsarin awo thread. Ana amfani da a mafi yawan fasteners. Shi yana da profile a cikin nau'i na wani equilateral alwatika, duk masu girma dabam ake auna a millimeters.

Tsarin awo thread - babban girma

Ya ce thread aka kaddamarda da harafin "M" da kuma numerals, wanda ya nuna diamita daga cikin sanda. Saboda haka, nadi M8 nuna cewa samfurin da aka amfani da su a tsarin awo thread, da sanda diamita ne 8mm.

Wani nuna alama na wannan thread shi ne wani mataki da cewa an tsara shi bayan na farko da adadi da kuma alamar "x". Major matakai ba kullum rubuta, tun suna asali mataki kanta - da nisa tsakanin thread crests cewa rasplozhen gaba. Gwani sana'a kayyade mataki a kan ido, kuma akwai na musamman shaci, kira thread ma'auni.

Idan aron kusa yana da wani tsarin awo thread kuma kana bukatar ka ƙayyade ta mataki, kuma babu rezbomerom a hannunka, da shi za a iya yi amfani da wani ma'auni na'urar, kamar calipers, amma yana yiwuwa tare da taimakon wani locksmith line. A saboda wannan dalili da nesa ne auna ta hanyar da dama jũya, sa'an nan raba sakamakon yawan da lambar.

Tabbatar da dalilin da thread farar wajibi ne ga dauke da fitar daban-daban ayyuka, msl, domin a daidai zabi na Threading kayan aiki ko rawar soja. Tun a lokacin aikace-aikace na thread a kan sanda tsawo na karfe auku, yana daukan wani dan kadan karami shaft diamita fiye da da ake so thread size.

Akwai lokutan da kana bukatar ka yi wani rami domin threaded kuma babu wani zama dole reference books. za a iya abar kulawa ta amfani da sauki ilmin lissafi lissafin tare da wannan matsala. Alal misali, shi ake bukata rawar soja a rami a karkashin thread diamita na 14 mm. Mun gano cewa, da thread farar na 1 mm, sa'an nan 14 - 1 = 13. Wancan ne, diamita daga cikin rami, wanda za a sliced awo thread, ya zama 13mm.

Tsarin awo conical thread wanda yana da conicity na 1:16 ne fiye da amfani ga conical sadarwa, kuma za a iya alaka conical waje thread tare da wani ciki cylindrical thread.

Tsarin awo thread sabon za a iya yi a hanyoyi da dama, misali, a aiwatar a kan wani lathe ko rawar soja latsa, a kan musamman inji for tapping, kuma ƙila za a yi da hannu. Lokacin da hannu tapping a kan fil mutu da ake amfani da tapping da famfo yana amfani.

A karshen harka, da taps a dama masu girma dabam. A farko da kuma na biyu da lambar ne da za'ayi kafin yankan, kuma ta uku ba da karshe siffar da size. Iya amfani da kawai a biyu masu girma dabam - karewa da kuma roughing famfo. Suna Ya sanya daga m, high-carbon steels.

A raguna iya zama ko dai madauwari ko zamiya, suna kira prismatic. Lokacin amfani madauwari mutu da pre-clamped a cikin ƙurma, sa'an nan hõre yankan waje thread.

Yanke ciki thread

Ya kamata ka farko shirya rami. Domin mafi alhẽri yankan dole ga rawar soja ya dan kadan ya fi girma diamita fiye da ciki diamita na gaba thread. Idan ka yi wani rami da cewa shi ne daidaita da ciki diamita daga cikin thread, sa'an nan idan aka share yankan karfe barbashi zai zama yawa matsa lamba a kan hakora na famfo da kuma a can za a zafi fiye da kima. Wannan zai haifar da matalauta-ingancin thread tare da jagged crests, da kuma na iya karya da kayan aiki.

A lokacin da yankan waje thread ta wajen faranti matsaloli ayan bayyana. Tun daga farko, kana bukatar ka tara-tune da workpiece da kuma kayan aiki, sa'an nan samun wani high quality thread.